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| <a href="#gst-plugins-base-libs-gstvideo.synopsis" class="shortcut">Top</a> |
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| <a href="#gst-plugins-base-libs-gstvideo.description" class="shortcut">Description</a> |
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| <h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstvideo.top_of_page"></a>gstvideo</span></h2> |
| <p>gstvideo — Support library for video operations</p> |
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| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-base-libs-gstvideo.synopsis"></a><h2>Synopsis</h2> |
| <pre class="synopsis"> |
| #include <gst/video/video.h> |
| |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-calculate-display-ratio" title="gst_video_calculate_display_ratio ()">gst_video_calculate_display_ratio</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *dar_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *dar_d</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_width</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_height</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_par_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_par_d</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> display_par_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> display_par_d</code></em>); |
| <span class="returnvalue">void</span> (<a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoConvertSampleCallback" title="GstVideoConvertSampleCallback ()">*GstVideoConvertSampleCallback</a>) (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> *error</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>); |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-convert-sample" title="gst_video_convert_sample ()">gst_video_convert_sample</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *to_caps</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timeout</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-convert-sample-async" title="gst_video_convert_sample_async ()">gst_video_convert_sample_async</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *to_caps</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timeout</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoConvertSampleCallback" title="GstVideoConvertSampleCallback ()"><span class="type">GstVideoConvertSampleCallback</span></a> callback</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>); |
| struct <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment">GstVideoAlignment</a>; |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-alignment-reset" title="gst_video_alignment_reset ()">gst_video_alignment_reset</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *align</code></em>); |
| |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-still-frame" title="gst_video_event_new_still_frame ()">gst_video_event_new_still_frame</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> in_still</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-still-frame" title="gst_video_event_parse_still_frame ()">gst_video_event_parse_still_frame</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *in_still</code></em>); |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-downstream-force-key-unit" title="gst_video_event_new_downstream_force_key_unit ()">gst_video_event_new_downstream_force_key_unit</a> |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> stream_time</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> count</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-downstream-force-key-unit" title="gst_video_event_parse_downstream_force_key_unit ()">gst_video_event_parse_downstream_force_key_unit</a> |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *timestamp</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *stream_time</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *count</code></em>); |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-upstream-force-key-unit" title="gst_video_event_new_upstream_force_key_unit ()">gst_video_event_new_upstream_force_key_unit</a> |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> count</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-upstream-force-key-unit" title="gst_video_event_parse_upstream_force_key_unit ()">gst_video_event_parse_upstream_force_key_unit</a> |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *count</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-is-force-key-unit" title="gst_video_event_is_force_key_unit ()">gst_video_event_is_force_key_unit</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>); |
| |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat">GstVideoFormat</a>; |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-MAX-PLANES:CAPS" title="GST_VIDEO_MAX_PLANES">GST_VIDEO_MAX_PLANES</a> |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-MAX-COMPONENTS:CAPS" title="GST_VIDEO_MAX_COMPONENTS">GST_VIDEO_MAX_COMPONENTS</a> |
| struct <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo">GstVideoFormatInfo</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite">GstVideoChromaSite</a>; |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="returnvalue">GstVideoChromaSite</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-chroma-from-string" title="gst_video_chroma_from_string ()">gst_video_chroma_from_string</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s</code></em>); |
| const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-chroma-to-string" title="gst_video_chroma_to_string ()">gst_video_chroma_to_string</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> site</code></em>); |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatFlags" title="enum GstVideoFormatFlags">GstVideoFormatFlags</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoPackFlags" title="enum GstVideoPackFlags">GstVideoPackFlags</a>; |
| <span class="returnvalue">void</span> (<a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatUnpack" title="GstVideoFormatUnpack ()">*GstVideoFormatUnpack</a>) (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoPackFlags" title="enum GstVideoPackFlags"><span class="type">GstVideoPackFlags</span></a> flags</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dest</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> x</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> y</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>); |
| <span class="returnvalue">void</span> (<a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatPack" title="GstVideoFormatPack ()">*GstVideoFormatPack</a>) (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoPackFlags" title="enum GstVideoPackFlags"><span class="type">GstVideoPackFlags</span></a> flags</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> src</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> sstride</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> chroma_site</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> y</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>); |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-FORMAT:CAPS" title="GST_VIDEO_FORMAT_INFO_FORMAT()">GST_VIDEO_FORMAT_INFO_FORMAT</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-NAME:CAPS" title="GST_VIDEO_FORMAT_INFO_NAME()">GST_VIDEO_FORMAT_INFO_NAME</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-FLAGS:CAPS" title="GST_VIDEO_FORMAT_INFO_FLAGS()">GST_VIDEO_FORMAT_INFO_FLAGS</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-IS-YUV:CAPS" title="GST_VIDEO_FORMAT_INFO_IS_YUV()">GST_VIDEO_FORMAT_INFO_IS_YUV</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-IS-RGB:CAPS" title="GST_VIDEO_FORMAT_INFO_IS_RGB()">GST_VIDEO_FORMAT_INFO_IS_RGB</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-IS-GRAY:CAPS" title="GST_VIDEO_FORMAT_INFO_IS_GRAY()">GST_VIDEO_FORMAT_INFO_IS_GRAY</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-HAS-ALPHA:CAPS" title="GST_VIDEO_FORMAT_INFO_HAS_ALPHA()">GST_VIDEO_FORMAT_INFO_HAS_ALPHA</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-IS-LE:CAPS" title="GST_VIDEO_FORMAT_INFO_IS_LE()">GST_VIDEO_FORMAT_INFO_IS_LE</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-HAS-PALETTE:CAPS" title="GST_VIDEO_FORMAT_INFO_HAS_PALETTE()">GST_VIDEO_FORMAT_INFO_HAS_PALETTE</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-IS-COMPLEX:CAPS" title="GST_VIDEO_FORMAT_INFO_IS_COMPLEX()">GST_VIDEO_FORMAT_INFO_IS_COMPLEX</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-BITS:CAPS" title="GST_VIDEO_FORMAT_INFO_BITS()">GST_VIDEO_FORMAT_INFO_BITS</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-N-COMPONENTS:CAPS" title="GST_VIDEO_FORMAT_INFO_N_COMPONENTS()">GST_VIDEO_FORMAT_INFO_N_COMPONENTS</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-SHIFT:CAPS" title="GST_VIDEO_FORMAT_INFO_SHIFT()">GST_VIDEO_FORMAT_INFO_SHIFT</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-DEPTH:CAPS" title="GST_VIDEO_FORMAT_INFO_DEPTH()">GST_VIDEO_FORMAT_INFO_DEPTH</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-PSTRIDE:CAPS" title="GST_VIDEO_FORMAT_INFO_PSTRIDE()">GST_VIDEO_FORMAT_INFO_PSTRIDE</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-N-PLANES:CAPS" title="GST_VIDEO_FORMAT_INFO_N_PLANES()">GST_VIDEO_FORMAT_INFO_N_PLANES</a> (info) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-PLANE:CAPS" title="GST_VIDEO_FORMAT_INFO_PLANE()">GST_VIDEO_FORMAT_INFO_PLANE</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-POFFSET:CAPS" title="GST_VIDEO_FORMAT_INFO_POFFSET()">GST_VIDEO_FORMAT_INFO_POFFSET</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-W-SUB:CAPS" title="GST_VIDEO_FORMAT_INFO_W_SUB()">GST_VIDEO_FORMAT_INFO_W_SUB</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-H-SUB:CAPS" title="GST_VIDEO_FORMAT_INFO_H_SUB()">GST_VIDEO_FORMAT_INFO_H_SUB</a> (info, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-SUB-SCALE:CAPS" title="GST_VIDEO_SUB_SCALE()">GST_VIDEO_SUB_SCALE</a> (scale, |
| val) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-SCALE-WIDTH:CAPS" title="GST_VIDEO_FORMAT_INFO_SCALE_WIDTH()">GST_VIDEO_FORMAT_INFO_SCALE_WIDTH</a> (info, |
| c, |
| w) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-SCALE-HEIGHT:CAPS" title="GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT()">GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT</a> (info, |
| c, |
| h) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-DATA:CAPS" title="GST_VIDEO_FORMAT_INFO_DATA()">GST_VIDEO_FORMAT_INFO_DATA</a> (info, |
| planes, |
| comp) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-STRIDE:CAPS" title="GST_VIDEO_FORMAT_INFO_STRIDE()">GST_VIDEO_FORMAT_INFO_STRIDE</a> (info, |
| strides, |
| comp) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-INFO-OFFSET:CAPS" title="GST_VIDEO_FORMAT_INFO_OFFSET()">GST_VIDEO_FORMAT_INFO_OFFSET</a> (info, |
| offsets, |
| comp) |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-from-masks" title="gst_video_format_from_masks ()">gst_video_format_from_masks</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> depth</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> bpp</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> endianness</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> red_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> green_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> blue_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> alpha_mask</code></em>); |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-from-fourcc" title="gst_video_format_from_fourcc ()">gst_video_format_from_fourcc</a> (<em class="parameter"><code><span class="type">guint32</span> fourcc</code></em>); |
| <span class="returnvalue">guint32</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-to-fourcc" title="gst_video_format_to_fourcc ()">gst_video_format_to_fourcc</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>); |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-from-string" title="gst_video_format_from_string ()">gst_video_format_from_string</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>); |
| const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-to-string" title="gst_video_format_to_string ()">gst_video_format_to_string</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>); |
| const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="returnvalue">GstVideoFormatInfo</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-format-get-info" title="gst_video_format_get_info ()">gst_video_format_get_info</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>); |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-SIZE-RANGE:CAPS" title="GST_VIDEO_SIZE_RANGE">GST_VIDEO_SIZE_RANGE</a> |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FPS-RANGE:CAPS" title="GST_VIDEO_FPS_RANGE">GST_VIDEO_FPS_RANGE</a> |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMATS-ALL:CAPS" title="GST_VIDEO_FORMATS_ALL">GST_VIDEO_FORMATS_ALL</a> |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-CAPS-MAKE:CAPS" title="GST_VIDEO_CAPS_MAKE()">GST_VIDEO_CAPS_MAKE</a> (format) |
| |
| |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorRange" title="enum GstVideoColorRange">GstVideoColorRange</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorMatrix" title="enum GstVideoColorMatrix">GstVideoColorMatrix</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoTransferFunction" title="enum GstVideoTransferFunction">GstVideoTransferFunction</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorPrimaries" title="enum GstVideoColorPrimaries">GstVideoColorPrimaries</a>; |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry">GstVideoColorimetry</a>; |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-colorimetry-matches" title="gst_video_colorimetry_matches ()">gst_video_colorimetry_matches</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *color</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-colorimetry-from-string" title="gst_video_colorimetry_from_string ()">gst_video_colorimetry_from_string</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *color</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-colorimetry-to-string" title="gst_video_colorimetry_to_string ()">gst_video_colorimetry_to_string</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-color-range-offsets" title="gst_video_color_range_offsets ()">gst_video_color_range_offsets</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorRange" title="enum GstVideoColorRange"><span class="type">GstVideoColorRange</span></a> range</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> offset[GST_VIDEO_MAX_COMPONENTS]</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> scale[GST_VIDEO_MAX_COMPONENTS]</code></em>); |
| |
| |
| struct <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo">GstVideoInfo</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInterlaceMode" title="enum GstVideoInterlaceMode">GstVideoInterlaceMode</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFlags" title="enum GstVideoFlags">GstVideoFlags</a>; |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FORMAT:CAPS" title="GST_VIDEO_INFO_FORMAT()">GST_VIDEO_INFO_FORMAT</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-NAME:CAPS" title="GST_VIDEO_INFO_NAME()">GST_VIDEO_INFO_NAME</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-IS-YUV:CAPS" title="GST_VIDEO_INFO_IS_YUV()">GST_VIDEO_INFO_IS_YUV</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-IS-RGB:CAPS" title="GST_VIDEO_INFO_IS_RGB()">GST_VIDEO_INFO_IS_RGB</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-IS-GRAY:CAPS" title="GST_VIDEO_INFO_IS_GRAY()">GST_VIDEO_INFO_IS_GRAY</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-HAS-ALPHA:CAPS" title="GST_VIDEO_INFO_HAS_ALPHA()">GST_VIDEO_INFO_HAS_ALPHA</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-INTERLACE-MODE:CAPS" title="GST_VIDEO_INFO_INTERLACE_MODE()">GST_VIDEO_INFO_INTERLACE_MODE</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-IS-INTERLACED:CAPS" title="GST_VIDEO_INFO_IS_INTERLACED()">GST_VIDEO_INFO_IS_INTERLACED</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FLAGS:CAPS" title="GST_VIDEO_INFO_FLAGS()">GST_VIDEO_INFO_FLAGS</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-WIDTH:CAPS" title="GST_VIDEO_INFO_WIDTH()">GST_VIDEO_INFO_WIDTH</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-HEIGHT:CAPS" title="GST_VIDEO_INFO_HEIGHT()">GST_VIDEO_INFO_HEIGHT</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-SIZE:CAPS" title="GST_VIDEO_INFO_SIZE()">GST_VIDEO_INFO_SIZE</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-VIEWS:CAPS" title="GST_VIDEO_INFO_VIEWS()">GST_VIDEO_INFO_VIEWS</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-PAR-N:CAPS" title="GST_VIDEO_INFO_PAR_N()">GST_VIDEO_INFO_PAR_N</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-PAR-D:CAPS" title="GST_VIDEO_INFO_PAR_D()">GST_VIDEO_INFO_PAR_D</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FPS-N:CAPS" title="GST_VIDEO_INFO_FPS_N()">GST_VIDEO_INFO_FPS_N</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FPS-D:CAPS" title="GST_VIDEO_INFO_FPS_D()">GST_VIDEO_INFO_FPS_D</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FLAG-IS-SET:CAPS" title="GST_VIDEO_INFO_FLAG_IS_SET()">GST_VIDEO_INFO_FLAG_IS_SET</a> (i, |
| flag) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FLAG-SET:CAPS" title="GST_VIDEO_INFO_FLAG_SET()">GST_VIDEO_INFO_FLAG_SET</a> (i, |
| flag) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-FLAG-UNSET:CAPS" title="GST_VIDEO_INFO_FLAG_UNSET()">GST_VIDEO_INFO_FLAG_UNSET</a> (i, |
| flag) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-N-PLANES:CAPS" title="GST_VIDEO_INFO_N_PLANES()">GST_VIDEO_INFO_N_PLANES</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-PLANE-OFFSET:CAPS" title="GST_VIDEO_INFO_PLANE_OFFSET()">GST_VIDEO_INFO_PLANE_OFFSET</a> (i, |
| p) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-PLANE-STRIDE:CAPS" title="GST_VIDEO_INFO_PLANE_STRIDE()">GST_VIDEO_INFO_PLANE_STRIDE</a> (i, |
| p) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-N-COMPONENTS:CAPS" title="GST_VIDEO_INFO_N_COMPONENTS()">GST_VIDEO_INFO_N_COMPONENTS</a> (i) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-DEPTH:CAPS" title="GST_VIDEO_INFO_COMP_DEPTH()">GST_VIDEO_INFO_COMP_DEPTH</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-DATA:CAPS" title="GST_VIDEO_INFO_COMP_DATA()">GST_VIDEO_INFO_COMP_DATA</a> (i, |
| d, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-OFFSET:CAPS" title="GST_VIDEO_INFO_COMP_OFFSET()">GST_VIDEO_INFO_COMP_OFFSET</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-STRIDE:CAPS" title="GST_VIDEO_INFO_COMP_STRIDE()">GST_VIDEO_INFO_COMP_STRIDE</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-WIDTH:CAPS" title="GST_VIDEO_INFO_COMP_WIDTH()">GST_VIDEO_INFO_COMP_WIDTH</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-HEIGHT:CAPS" title="GST_VIDEO_INFO_COMP_HEIGHT()">GST_VIDEO_INFO_COMP_HEIGHT</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-PLANE:CAPS" title="GST_VIDEO_INFO_COMP_PLANE()">GST_VIDEO_INFO_COMP_PLANE</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-PSTRIDE:CAPS" title="GST_VIDEO_INFO_COMP_PSTRIDE()">GST_VIDEO_INFO_COMP_PSTRIDE</a> (i, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-INFO-COMP-POFFSET:CAPS" title="GST_VIDEO_INFO_COMP_POFFSET()">GST_VIDEO_INFO_COMP_POFFSET</a> (i, |
| c) |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-init" title="gst_video_info_init ()">gst_video_info_init</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-set-format" title="gst_video_info_set_format ()">gst_video_info_set_format</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-from-caps" title="gst_video_info_from_caps ()">gst_video_info_from_caps</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>); |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-to-caps" title="gst_video_info_to_caps ()">gst_video_info_to_caps</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-convert" title="gst_video_info_convert ()">gst_video_info_convert</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> src_format</code></em>, |
| <em class="parameter"><code><span class="type">gint64</span> src_value</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> dest_format</code></em>, |
| <em class="parameter"><code><span class="type">gint64</span> *dest_value</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-is-equal" title="gst_video_info_is_equal ()">gst_video_info_is_equal</a> (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *other</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-align" title="gst_video_info_align ()">gst_video_info_align</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *align</code></em>); |
| |
| |
| struct <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame">GstVideoFrame</a>; |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags">GstVideoFrameFlags</a>; |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-map-id" title="gst_video_frame_map_id ()">gst_video_frame_map_id</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-map" title="gst_video_frame_map ()">gst_video_frame_map</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-unmap" title="gst_video_frame_unmap ()">gst_video_frame_unmap</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-copy" title="gst_video_frame_copy ()">gst_video_frame_copy</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *dest</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *src</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-copy-plane" title="gst_video_frame_copy_plane ()">gst_video_frame_copy_plane</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *dest</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *src</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>); |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-FORMAT:CAPS" title="GST_VIDEO_FRAME_FORMAT()">GST_VIDEO_FRAME_FORMAT</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-WIDTH:CAPS" title="GST_VIDEO_FRAME_WIDTH()">GST_VIDEO_FRAME_WIDTH</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-HEIGHT:CAPS" title="GST_VIDEO_FRAME_HEIGHT()">GST_VIDEO_FRAME_HEIGHT</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-SIZE:CAPS" title="GST_VIDEO_FRAME_SIZE()">GST_VIDEO_FRAME_SIZE</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-FLAGS:CAPS" title="GST_VIDEO_FRAME_FLAGS()">GST_VIDEO_FRAME_FLAGS</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-FLAG-IS-SET:CAPS" title="GST_VIDEO_FRAME_FLAG_IS_SET()">GST_VIDEO_FRAME_FLAG_IS_SET</a> (f, |
| fl) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-IS-INTERLACED:CAPS" title="GST_VIDEO_FRAME_IS_INTERLACED()">GST_VIDEO_FRAME_IS_INTERLACED</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-IS-TFF:CAPS" title="GST_VIDEO_FRAME_IS_TFF()">GST_VIDEO_FRAME_IS_TFF</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-IS-RFF:CAPS" title="GST_VIDEO_FRAME_IS_RFF()">GST_VIDEO_FRAME_IS_RFF</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-IS-ONEFIELD:CAPS" title="GST_VIDEO_FRAME_IS_ONEFIELD()">GST_VIDEO_FRAME_IS_ONEFIELD</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-N-PLANES:CAPS" title="GST_VIDEO_FRAME_N_PLANES()">GST_VIDEO_FRAME_N_PLANES</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-PLANE-DATA:CAPS" title="GST_VIDEO_FRAME_PLANE_DATA()">GST_VIDEO_FRAME_PLANE_DATA</a> (f, |
| p) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-PLANE-OFFSET:CAPS" title="GST_VIDEO_FRAME_PLANE_OFFSET()">GST_VIDEO_FRAME_PLANE_OFFSET</a> (f, |
| p) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-PLANE-STRIDE:CAPS" title="GST_VIDEO_FRAME_PLANE_STRIDE()">GST_VIDEO_FRAME_PLANE_STRIDE</a> (f, |
| p) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-N-COMPONENTS:CAPS" title="GST_VIDEO_FRAME_N_COMPONENTS()">GST_VIDEO_FRAME_N_COMPONENTS</a> (f) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-DEPTH:CAPS" title="GST_VIDEO_FRAME_COMP_DEPTH()">GST_VIDEO_FRAME_COMP_DEPTH</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-DATA:CAPS" title="GST_VIDEO_FRAME_COMP_DATA()">GST_VIDEO_FRAME_COMP_DATA</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-STRIDE:CAPS" title="GST_VIDEO_FRAME_COMP_STRIDE()">GST_VIDEO_FRAME_COMP_STRIDE</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-OFFSET:CAPS" title="GST_VIDEO_FRAME_COMP_OFFSET()">GST_VIDEO_FRAME_COMP_OFFSET</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-WIDTH:CAPS" title="GST_VIDEO_FRAME_COMP_WIDTH()">GST_VIDEO_FRAME_COMP_WIDTH</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-HEIGHT:CAPS" title="GST_VIDEO_FRAME_COMP_HEIGHT()">GST_VIDEO_FRAME_COMP_HEIGHT</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-PLANE:CAPS" title="GST_VIDEO_FRAME_COMP_PLANE()">GST_VIDEO_FRAME_COMP_PLANE</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-PSTRIDE:CAPS" title="GST_VIDEO_FRAME_COMP_PSTRIDE()">GST_VIDEO_FRAME_COMP_PSTRIDE</a> (f, |
| c) |
| #define <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FRAME-COMP-POFFSET:CAPS" title="GST_VIDEO_FRAME_COMP_POFFSET()">GST_VIDEO_FRAME_COMP_POFFSET</a> (f, |
| c) |
| enum <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoBufferFlags" title="enum GstVideoBufferFlags">GstVideoBufferFlags</a>; |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideo.description"></a><h2>Description</h2> |
| <p> |
| </p> |
| <div class="refsect2"> |
| <a name="idp81607216"></a><p> |
| This library contains some helper functions and includes the |
| videosink and videofilter base classes. |
| </p> |
| </div> |
| <p> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideo.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="gst-video-calculate-display-ratio"></a><h3>gst_video_calculate_display_ratio ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_calculate_display_ratio (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *dar_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *dar_d</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_width</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_height</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_par_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> video_par_d</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> display_par_n</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> display_par_d</code></em>);</pre> |
| <p> |
| Given the Pixel Aspect Ratio and size of an input video frame, and the |
| pixel aspect ratio of the intended display device, calculates the actual |
| display ratio the video will be rendered with. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dar_n</code></em> :</span></p></td> |
| <td>Numerator of the calculated display_ratio</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dar_d</code></em> :</span></p></td> |
| <td>Denominator of the calculated display_ratio</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>video_width</code></em> :</span></p></td> |
| <td>Width of the video frame in pixels</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>video_height</code></em> :</span></p></td> |
| <td>Height of the video frame in pixels</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>video_par_n</code></em> :</span></p></td> |
| <td>Numerator of the pixel aspect ratio of the input video.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>video_par_d</code></em> :</span></p></td> |
| <td>Denominator of the pixel aspect ratio of the input video.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>display_par_n</code></em> :</span></p></td> |
| <td>Numerator of the pixel aspect ratio of the display device</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>display_par_d</code></em> :</span></p></td> |
| <td>Denominator of the pixel aspect ratio of the display device</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>A boolean indicating success and a calculated Display Ratio in the |
| dar_n and dar_d parameters. |
| The return value is FALSE in the case of integer overflow or other error.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoConvertSampleCallback"></a><h3>GstVideoConvertSampleCallback ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> (*GstVideoConvertSampleCallback) (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> *error</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-convert-sample"></a><h3>gst_video_convert_sample ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> * gst_video_convert_sample (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *to_caps</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timeout</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| Converts a raw video buffer into the specified output caps. |
| </p> |
| <p> |
| The output caps can be any raw video formats or any image formats (jpeg, png, ...). |
| </p> |
| <p> |
| The width, height and pixel-aspect-ratio can also be specified in the output caps. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td> |
| <td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>to_caps</code></em> :</span></p></td> |
| <td>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> to convert to</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>timeout</code></em> :</span></p></td> |
| <td>the maximum amount of time allowed for the processing.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>pointer to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>. Can be <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>The converted <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if an error happened (in which case <em class="parameter"><code>err</code></em> |
| will point to the <a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>).</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-convert-sample-async"></a><h3>gst_video_convert_sample_async ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_convert_sample_async (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> *sample</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *to_caps</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timeout</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoConvertSampleCallback" title="GstVideoConvertSampleCallback ()"><span class="type">GstVideoConvertSampleCallback</span></a> callback</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>);</pre> |
| <p> |
| Converts a raw video buffer into the specified output caps. |
| </p> |
| <p> |
| The output caps can be any raw video formats or any image formats (jpeg, png, ...). |
| </p> |
| <p> |
| The width, height and pixel-aspect-ratio can also be specified in the output caps. |
| </p> |
| <p> |
| <em class="parameter"><code>callback</code></em> will be called after conversion, when an error occured or if conversion didn't |
| finish after <em class="parameter"><code>timeout</code></em>. <em class="parameter"><code>callback</code></em> will always be called from the thread default |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GMainContext"><code class="literal">GMainContext</code></a>, see <a href="http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#g-main-context-get-thread-default"><code class="function">g_main_context_get_thread_default()</code></a>. If GLib before 2.22 is used, |
| this will always be the global default main context. |
| </p> |
| <p> |
| <em class="parameter"><code>destroy_notify</code></em> will be called after the callback was called and <em class="parameter"><code>user_data</code></em> is not needed |
| anymore. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td> |
| <td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>to_caps</code></em> :</span></p></td> |
| <td>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> to convert to</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>timeout</code></em> :</span></p></td> |
| <td>the maximum amount of time allowed for the processing.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>callback</code></em> :</span></p></td> |
| <td> |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoConvertSampleCallback" title="GstVideoConvertSampleCallback ()"><code class="literal">GstVideoConvertSampleCallback</code></a> that will be called after conversion.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td> |
| <td>extra data that will be passed to the <em class="parameter"><code>callback</code></em> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>destroy_notify</code></em> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Datasets.html#GDestroyNotify"><code class="literal">GDestroyNotify</code></a> to be called after <em class="parameter"><code>user_data</code></em> is not needed anymore</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoAlignment"></a><h3>struct GstVideoAlignment</h3> |
| <pre class="programlisting">struct GstVideoAlignment { |
| guint padding_top; |
| guint padding_bottom; |
| guint padding_left; |
| guint padding_right; |
| guint stride_align[GST_VIDEO_MAX_PLANES]; |
| }; |
| </pre> |
| <p> |
| Extra alignment paramters for the memory of video buffers. This |
| structure is usually used to configure the bufferpool if it supports the |
| <span class="type">GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT</span>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoAlignment.padding-top"></a>padding_top</code></em>;</span></p></td> |
| <td>extra pixels on the top</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoAlignment.padding-bottom"></a>padding_bottom</code></em>;</span></p></td> |
| <td>extra pixels on the bottom</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoAlignment.padding-left"></a>padding_left</code></em>;</span></p></td> |
| <td>extra pixels on the left side</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoAlignment.padding-right"></a>padding_right</code></em>;</span></p></td> |
| <td>extra pixels on the right side</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoAlignment.stride-align"></a>stride_align</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td> |
| <td>array with extra alignment requirements for the strides</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-alignment-reset"></a><h3>gst_video_alignment_reset ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_alignment_reset (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *align</code></em>);</pre> |
| <p> |
| Set <em class="parameter"><code>align</code></em> to its default values with no padding and no alignment. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>align</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> |
| </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-new-still-frame"></a><h3>gst_video_event_new_still_frame ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * gst_video_event_new_still_frame (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> in_still</code></em>);</pre> |
| <p> |
| Creates a new Still Frame event. If <em class="parameter"><code>in_still</code></em> is <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then the event |
| represents the start of a still frame sequence. If it is <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, then |
| the event ends a still frame sequence. |
| </p> |
| <p> |
| To parse an event created by <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-still-frame" title="gst_video_event_new_still_frame ()"><code class="function">gst_video_event_new_still_frame()</code></a> use |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-still-frame" title="gst_video_event_parse_still_frame ()"><code class="function">gst_video_event_parse_still_frame()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>in_still</code></em> :</span></p></td> |
| <td>boolean value for the still-frame state of the event.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>The new GstEvent</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-parse-still-frame"></a><h3>gst_video_event_parse_still_frame ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_event_parse_still_frame (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *in_still</code></em>);</pre> |
| <p> |
| Parse a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a>, identify if it is a Still Frame event, and |
| return the still-frame state from the event if it is. |
| If the event represents the start of a still frame, the in_still |
| variable will be set to TRUE, otherwise FALSE. It is OK to pass NULL for the |
| in_still variable order to just check whether the event is a valid still-frame |
| event. |
| </p> |
| <p> |
| Create a still frame event using <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-still-frame" title="gst_video_event_new_still_frame ()"><code class="function">gst_video_event_new_still_frame()</code></a> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>event</code></em> :</span></p></td> |
| <td>A <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> to parse</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>in_still</code></em> :</span></p></td> |
| <td>A boolean to receive the still-frame status from the event, or NULL</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the event is a valid still-frame event. <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if not</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-new-downstream-force-key-unit"></a><h3>gst_video_event_new_downstream_force_key_unit ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * gst_video_event_new_downstream_force_key_unit |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> stream_time</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> count</code></em>);</pre> |
| <p> |
| Creates a new downstream force key unit event. A downstream force key unit |
| event can be sent down the pipeline to request downstream elements to produce |
| a key unit. A downstream force key unit event must also be sent when handling |
| an upstream force key unit event to notify downstream that the latter has been |
| handled. |
| </p> |
| <p> |
| To parse an event created by <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-downstream-force-key-unit" title="gst_video_event_new_downstream_force_key_unit ()"><code class="function">gst_video_event_new_downstream_force_key_unit()</code></a> use |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-downstream-force-key-unit" title="gst_video_event_parse_downstream_force_key_unit ()"><code class="function">gst_video_event_parse_downstream_force_key_unit()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td> |
| <td>the timestamp of the buffer that starts a new key unit</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>stream_time</code></em> :</span></p></td> |
| <td>the stream_time of the buffer that starts a new key unit</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>running_time</code></em> :</span></p></td> |
| <td>the running_time of the buffer that starts a new key unit</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>all_headers</code></em> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to produce headers when starting a new key unit</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td> |
| <td>integer that can be used to number key units</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>The new GstEvent</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-parse-downstream-force-key-unit"></a><h3>gst_video_event_parse_downstream_force_key_unit ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_event_parse_downstream_force_key_unit |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *timestamp</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *stream_time</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *count</code></em>);</pre> |
| <p> |
| Get timestamp, stream-time, running-time, all-headers and count in the force |
| key unit event. See <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-downstream-force-key-unit" title="gst_video_event_new_downstream_force_key_unit ()"><code class="function">gst_video_event_new_downstream_force_key_unit()</code></a> for a |
| full description of the downstream force key unit event. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>event</code></em> :</span></p></td> |
| <td>A <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> to parse</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td> |
| <td>A pointer to the timestamp in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>stream_time</code></em> :</span></p></td> |
| <td>A pointer to the stream-time in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>running_time</code></em> :</span></p></td> |
| <td>A pointer to the running-time in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>all_headers</code></em> :</span></p></td> |
| <td>A pointer to the all_headers flag in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td> |
| <td>A pointer to the count field of the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the event is a valid downstream force key unit event.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-new-upstream-force-key-unit"></a><h3>gst_video_event_new_upstream_force_key_unit ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="returnvalue">GstEvent</span></a> * gst_video_event_new_upstream_force_key_unit |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> count</code></em>);</pre> |
| <p> |
| Creates a new upstream force key unit event. An upstream force key unit event |
| can be sent to request upstream elements to produce a key unit. |
| </p> |
| <p> |
| <em class="parameter"><code>running_time</code></em> can be set to request a new key unit at a specific |
| running_time. If set to GST_CLOCK_TIME_NONE, upstream elements will produce a |
| new key unit as soon as possible. |
| </p> |
| <p> |
| To parse an event created by <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-downstream-force-key-unit" title="gst_video_event_new_downstream_force_key_unit ()"><code class="function">gst_video_event_new_downstream_force_key_unit()</code></a> use |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-parse-downstream-force-key-unit" title="gst_video_event_parse_downstream_force_key_unit ()"><code class="function">gst_video_event_parse_downstream_force_key_unit()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>running_time</code></em> :</span></p></td> |
| <td>the running_time at which a new key unit should be produced</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>all_headers</code></em> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to produce headers when starting a new key unit</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td> |
| <td>integer that can be used to number key units</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>The new GstEvent</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-parse-upstream-force-key-unit"></a><h3>gst_video_event_parse_upstream_force_key_unit ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_event_parse_upstream_force_key_unit |
| (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *running_time</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *all_headers</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *count</code></em>);</pre> |
| <p> |
| Get running-time, all-headers and count in the force key unit event. See |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-upstream-force-key-unit" title="gst_video_event_new_upstream_force_key_unit ()"><code class="function">gst_video_event_new_upstream_force_key_unit()</code></a> for a full description of the |
| upstream force key unit event. |
| </p> |
| <p> |
| Create an upstream force key unit event using <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-event-new-upstream-force-key-unit" title="gst_video_event_new_upstream_force_key_unit ()"><code class="function">gst_video_event_new_upstream_force_key_unit()</code></a> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>event</code></em> :</span></p></td> |
| <td>A <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> to parse</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>running_time</code></em> :</span></p></td> |
| <td>A pointer to the running_time in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>all_headers</code></em> :</span></p></td> |
| <td>A pointer to the all_headers flag in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>count</code></em> :</span></p></td> |
| <td>A pointer to the count field in the event. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the event is a valid upstream force-key-unit event. <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if not</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-event-is-force-key-unit"></a><h3>gst_video_event_is_force_key_unit ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_event_is_force_key_unit (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> *event</code></em>);</pre> |
| <p> |
| Checks if an event is a force key unit event. Returns true for both upstream |
| and downstream force key unit events. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>event</code></em> :</span></p></td> |
| <td>A <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GstEvent"><span class="type">GstEvent</span></a> to check</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the event is a valid force key unit event</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFormat"></a><h3>enum GstVideoFormat</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_FORMAT_UNKNOWN, |
| GST_VIDEO_FORMAT_ENCODED, |
| GST_VIDEO_FORMAT_I420, |
| GST_VIDEO_FORMAT_YV12, |
| GST_VIDEO_FORMAT_YUY2, |
| GST_VIDEO_FORMAT_UYVY, |
| GST_VIDEO_FORMAT_AYUV, |
| GST_VIDEO_FORMAT_RGBx, |
| GST_VIDEO_FORMAT_BGRx, |
| GST_VIDEO_FORMAT_xRGB, |
| GST_VIDEO_FORMAT_xBGR, |
| GST_VIDEO_FORMAT_RGBA, |
| GST_VIDEO_FORMAT_BGRA, |
| GST_VIDEO_FORMAT_ARGB, |
| GST_VIDEO_FORMAT_ABGR, |
| GST_VIDEO_FORMAT_RGB, |
| GST_VIDEO_FORMAT_BGR, |
| GST_VIDEO_FORMAT_Y41B, |
| GST_VIDEO_FORMAT_Y42B, |
| GST_VIDEO_FORMAT_YVYU, |
| GST_VIDEO_FORMAT_Y444, |
| GST_VIDEO_FORMAT_v210, |
| GST_VIDEO_FORMAT_v216, |
| GST_VIDEO_FORMAT_NV12, |
| GST_VIDEO_FORMAT_NV21, |
| GST_VIDEO_FORMAT_GRAY8, |
| GST_VIDEO_FORMAT_GRAY16_BE, |
| GST_VIDEO_FORMAT_GRAY16_LE, |
| GST_VIDEO_FORMAT_v308, |
| GST_VIDEO_FORMAT_RGB16, |
| GST_VIDEO_FORMAT_BGR16, |
| GST_VIDEO_FORMAT_RGB15, |
| GST_VIDEO_FORMAT_BGR15, |
| GST_VIDEO_FORMAT_UYVP, |
| GST_VIDEO_FORMAT_A420, |
| GST_VIDEO_FORMAT_RGB8P, |
| GST_VIDEO_FORMAT_YUV9, |
| GST_VIDEO_FORMAT_YVU9, |
| GST_VIDEO_FORMAT_IYU1, |
| GST_VIDEO_FORMAT_ARGB64, |
| GST_VIDEO_FORMAT_AYUV64, |
| GST_VIDEO_FORMAT_r210, |
| GST_VIDEO_FORMAT_I420_10BE, |
| GST_VIDEO_FORMAT_I420_10LE, |
| GST_VIDEO_FORMAT_I422_10BE, |
| GST_VIDEO_FORMAT_I422_10LE, |
| GST_VIDEO_FORMAT_Y444_10BE, |
| GST_VIDEO_FORMAT_Y444_10LE, |
| GST_VIDEO_FORMAT_GBR, |
| GST_VIDEO_FORMAT_GBR_10BE, |
| GST_VIDEO_FORMAT_GBR_10LE, |
| GST_VIDEO_FORMAT_NV16, |
| GST_VIDEO_FORMAT_NV24, |
| } GstVideoFormat; |
| </pre> |
| <p> |
| Enum value describing the most common video formats. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_UNKNOWN</code></span></p></td> |
| <td>Unknown or unset video format id |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-ENCODED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_ENCODED</code></span></p></td> |
| <td>Encoded video format |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-I420:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_I420</code></span></p></td> |
| <td>planar 4:2:0 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-YV12:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_YV12</code></span></p></td> |
| <td>planar 4:2:0 YVU (like I420 but UV planes swapped) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-YUY2:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_YUY2</code></span></p></td> |
| <td>packed 4:2:2 YUV (Y0-U0-Y1-V0 Y2-U2-Y3-V2 Y4 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-UYVY:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_UYVY</code></span></p></td> |
| <td>packed 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-AYUV:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_AYUV</code></span></p></td> |
| <td>packed 4:4:4 YUV with alpha channel (A0-Y0-U0-V0 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGBx"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGBx</code></span></p></td> |
| <td>sparse rgb packed into 32 bit, space last |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-BGRx"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_BGRx</code></span></p></td> |
| <td>sparse reverse rgb packed into 32 bit, space last |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-xRGB"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_xRGB</code></span></p></td> |
| <td>sparse rgb packed into 32 bit, space first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-xBGR"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_xBGR</code></span></p></td> |
| <td>sparse reverse rgb packed into 32 bit, space first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGBA:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGBA</code></span></p></td> |
| <td>rgb with alpha channel last |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-BGRA:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_BGRA</code></span></p></td> |
| <td>reverse rgb with alpha channel last |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-ARGB:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_ARGB</code></span></p></td> |
| <td>rgb with alpha channel first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-ABGR:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_ABGR</code></span></p></td> |
| <td>reverse rgb with alpha channel first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGB:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGB</code></span></p></td> |
| <td>rgb |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-BGR:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_BGR</code></span></p></td> |
| <td>reverse rgb |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-Y41B:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_Y41B</code></span></p></td> |
| <td>planar 4:1:1 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-Y42B:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_Y42B</code></span></p></td> |
| <td>planar 4:2:2 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-YVYU:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_YVYU</code></span></p></td> |
| <td>packed 4:2:2 YUV (Y0-V0-Y1-U0 Y2-V2-Y3-U2 Y4 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-Y444:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_Y444</code></span></p></td> |
| <td>planar 4:4:4 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-v210"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_v210</code></span></p></td> |
| <td>packed 4:2:2 10-bit YUV, complex format |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-v216"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_v216</code></span></p></td> |
| <td>packed 4:2:2 16-bit YUV, Y0-U0-Y1-V1 order |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-NV12:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_NV12</code></span></p></td> |
| <td>planar 4:2:0 YUV with interleaved UV plane |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-NV21:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_NV21</code></span></p></td> |
| <td>planar 4:2:0 YUV with interleaved VU plane |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GRAY8:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GRAY8</code></span></p></td> |
| <td>8-bit grayscale |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GRAY16-BE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GRAY16_BE</code></span></p></td> |
| <td>16-bit grayscale, most significant byte first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GRAY16-LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GRAY16_LE</code></span></p></td> |
| <td>16-bit grayscale, least significant byte first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-v308"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_v308</code></span></p></td> |
| <td>packed 4:4:4 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGB16:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGB16</code></span></p></td> |
| <td>rgb 5-6-5 bits per component |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-BGR16:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_BGR16</code></span></p></td> |
| <td>reverse rgb 5-6-5 bits per component |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGB15:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGB15</code></span></p></td> |
| <td>rgb 5-5-5 bits per component |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-BGR15:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_BGR15</code></span></p></td> |
| <td>reverse rgb 5-5-5 bits per component |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-UYVP:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_UYVP</code></span></p></td> |
| <td>packed 10-bit 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-A420:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_A420</code></span></p></td> |
| <td>planar 4:4:2:0 AYUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-RGB8P:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_RGB8P</code></span></p></td> |
| <td>8-bit paletted RGB |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-YUV9:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_YUV9</code></span></p></td> |
| <td>planar 4:1:0 YUV |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-YVU9:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_YVU9</code></span></p></td> |
| <td>planar 4:1:0 YUV (like YUV9 but UV planes swapped) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-IYU1:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_IYU1</code></span></p></td> |
| <td>packed 4:1:1 YUV (Cb-Y0-Y1-Cr-Y2-Y3 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-ARGB64:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_ARGB64</code></span></p></td> |
| <td>rgb with alpha channel first, 16 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-AYUV64:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_AYUV64</code></span></p></td> |
| <td>packed 4:4:4 YUV with alpha channel, 16 bits per channel (A0-Y0-U0-V0 ...) |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-r210"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_r210</code></span></p></td> |
| <td>packed 4:4:4 RGB, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-I420-10BE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_I420_10BE</code></span></p></td> |
| <td>planar 4:2:0 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-I420-10LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_I420_10LE</code></span></p></td> |
| <td>planar 4:2:0 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-I422-10BE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_I422_10BE</code></span></p></td> |
| <td>planar 4:2:2 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-I422-10LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_I422_10LE</code></span></p></td> |
| <td>planar 4:2:2 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-Y444-10BE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_Y444_10BE</code></span></p></td> |
| <td>planar 4:4:4 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-Y444-10LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_Y444_10LE</code></span></p></td> |
| <td>planar 4:4:4 YUV, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GBR:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GBR</code></span></p></td> |
| <td>planar 4:4:4 RGB, 8 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GBR-10BE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GBR_10BE</code></span></p></td> |
| <td>planar 4:4:4 RGB, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-GBR-10LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_GBR_10LE</code></span></p></td> |
| <td>planar 4:4:4 RGB, 10 bits per channel |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-NV16:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_NV16</code></span></p></td> |
| <td>planar 4:2:2 YUV with interleaved UV plane |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-NV24:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_NV24</code></span></p></td> |
| <td>planar 4:4:4 YUV with interleaved UV plane |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-MAX-PLANES:CAPS"></a><h3>GST_VIDEO_MAX_PLANES</h3> |
| <pre class="programlisting">#define GST_VIDEO_MAX_PLANES 4 |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-MAX-COMPONENTS:CAPS"></a><h3>GST_VIDEO_MAX_COMPONENTS</h3> |
| <pre class="programlisting">#define GST_VIDEO_MAX_COMPONENTS 4 |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFormatInfo"></a><h3>struct GstVideoFormatInfo</h3> |
| <pre class="programlisting">struct GstVideoFormatInfo { |
| GstVideoFormat format; |
| const gchar *name; |
| const gchar *description; |
| GstVideoFormatFlags flags; |
| guint bits; |
| guint n_components; |
| guint shift[GST_VIDEO_MAX_COMPONENTS]; |
| guint depth[GST_VIDEO_MAX_COMPONENTS]; |
| gint pixel_stride[GST_VIDEO_MAX_COMPONENTS]; |
| guint n_planes; |
| guint plane[GST_VIDEO_MAX_COMPONENTS]; |
| guint poffset[GST_VIDEO_MAX_COMPONENTS]; |
| guint w_sub[GST_VIDEO_MAX_COMPONENTS]; |
| guint h_sub[GST_VIDEO_MAX_COMPONENTS]; |
| |
| GstVideoFormat unpack_format; |
| GstVideoFormatUnpack unpack_func; |
| gint pack_lines; |
| GstVideoFormatPack pack_func; |
| |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| </pre> |
| <p> |
| Information for a video format. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.format"></a>format</code></em>;</span></p></td> |
| <td><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GstVideoFormatInfo.name"></a>name</code></em>;</span></p></td> |
| <td>string representation of the format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GstVideoFormatInfo.description"></a>description</code></em>;</span></p></td> |
| <td>use readable description of the format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatFlags" title="enum GstVideoFormatFlags"><span class="type">GstVideoFormatFlags</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.flags"></a>flags</code></em>;</span></p></td> |
| <td><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatFlags" title="enum GstVideoFormatFlags"><span class="type">GstVideoFormatFlags</span></a></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.bits"></a>bits</code></em>;</span></p></td> |
| <td>The number of bits used to pack data items. This can be less than 8 |
| when multiple pixels are stored in a byte. for values > 8 multiple bytes |
| should be read according to the endianness flag before applying the shift |
| and mask.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.n-components"></a>n_components</code></em>;</span></p></td> |
| <td>the number of components in the video format.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.shift"></a>shift</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>the number of bits to shift away to get the component data</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.depth"></a>depth</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>the depth in bits for each component</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.pixel-stride"></a>pixel_stride</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>the pixel stride of each component. This is the amount of |
| bytes to the pixel immediately to the right. When bits < 8, the stride is |
| expressed in bits. For 24-bit RGB, this would be 3 bytes, for example, |
| while it would be 4 bytes for RGBx or ARGB.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.n-planes"></a>n_planes</code></em>;</span></p></td> |
| <td>the number of planes for this format. The number of planes can be |
| less than the amount of components when multiple components are packed into |
| one plane.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.plane"></a>plane</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>the plane number where a component can be found</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.poffset"></a>poffset</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>the offset in the plane where the first pixel of the components |
| can be found.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.w-sub"></a>w_sub</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>subsampling factor of the width for the component. Use |
| GST_VIDEO_SUB_SCALE to scale a width.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.h-sub"></a>h_sub</code></em>[GST_VIDEO_MAX_COMPONENTS];</span></p></td> |
| <td>subsampling factor of the height for the component. Use |
| GST_VIDEO_SUB_SCALE to scale a height.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.unpack-format"></a>unpack_format</code></em>;</span></p></td> |
| <td>the format of the unpacked pixels. This format must have the |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-FLAG-UNPACK:CAPS"><span class="type">GST_VIDEO_FORMAT_FLAG_UNPACK</span></a> flag set.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatUnpack" title="GstVideoFormatUnpack ()"><span class="type">GstVideoFormatUnpack</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.unpack-func"></a>unpack_func</code></em>;</span></p></td> |
| <td>an unpack function for this format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.pack-lines"></a>pack_lines</code></em>;</span></p></td> |
| <td>the amount of lines that will be packed</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatPack" title="GstVideoFormatPack ()"><span class="type">GstVideoFormatPack</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.pack-func"></a>pack_func</code></em>;</span></p></td> |
| <td>an pack function for this format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GstVideoFormatInfo.-gst-reserved"></a>_gst_reserved</code></em>[GST_PADDING];</span></p></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoChromaSite"></a><h3>enum GstVideoChromaSite</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_CHROMA_SITE_UNKNOWN = 0, |
| GST_VIDEO_CHROMA_SITE_NONE = (1 << 0), |
| GST_VIDEO_CHROMA_SITE_H_COSITED = (1 << 1), |
| GST_VIDEO_CHROMA_SITE_V_COSITED = (1 << 2), |
| GST_VIDEO_CHROMA_SITE_ALT_LINE = (1 << 3), |
| /* some common chroma cositing */ |
| GST_VIDEO_CHROMA_SITE_COSITED = (GST_VIDEO_CHROMA_SITE_H_COSITED | GST_VIDEO_CHROMA_SITE_V_COSITED), |
| GST_VIDEO_CHROMA_SITE_JPEG = (GST_VIDEO_CHROMA_SITE_NONE), |
| GST_VIDEO_CHROMA_SITE_MPEG2 = (GST_VIDEO_CHROMA_SITE_H_COSITED), |
| GST_VIDEO_CHROMA_SITE_DV = (GST_VIDEO_CHROMA_SITE_COSITED | GST_VIDEO_CHROMA_SITE_ALT_LINE), |
| } GstVideoChromaSite; |
| </pre> |
| <p> |
| Various Chroma sitings. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_UNKNOWN</code></span></p></td> |
| <td>unknown cositing |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-NONE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_NONE</code></span></p></td> |
| <td>no cositing |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-H-COSITED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_H_COSITED</code></span></p></td> |
| <td>chroma is horizontally cosited |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-V-COSITED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_V_COSITED</code></span></p></td> |
| <td>chroma is vertically cosited |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-ALT-LINE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_ALT_LINE</code></span></p></td> |
| <td>choma samples are sited on alternate lines |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-COSITED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_COSITED</code></span></p></td> |
| <td>chroma samples cosited with luma samples |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-JPEG:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_JPEG</code></span></p></td> |
| <td>jpeg style cositing, also for mpeg1 and mjpeg |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-MPEG2:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_MPEG2</code></span></p></td> |
| <td>mpeg2 style cositing |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-CHROMA-SITE-DV:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_CHROMA_SITE_DV</code></span></p></td> |
| <td>DV style cositing |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-chroma-from-string"></a><h3>gst_video_chroma_from_string ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="returnvalue">GstVideoChromaSite</span></a> gst_video_chroma_from_string (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s</code></em>);</pre> |
| <p> |
| Convert <em class="parameter"><code>s</code></em> to a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>s</code></em> :</span></p></td> |
| <td>a chromasite string</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> or <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-CHROMA-SITE-UNKNOWN:CAPS"><code class="literal">GST_VIDEO_CHROMA_SITE_UNKNOWN</code></a> when <em class="parameter"><code>s</code></em> does |
| not contain a valid chroma description.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-chroma-to-string"></a><h3>gst_video_chroma_to_string ()</h3> |
| <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * gst_video_chroma_to_string (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> site</code></em>);</pre> |
| <p> |
| Converts <em class="parameter"><code>site</code></em> to its string representation. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>site</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>a string describing <em class="parameter"><code>site</code></em>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFormatFlags"></a><h3>enum GstVideoFormatFlags</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_FORMAT_FLAG_YUV = (1 << 0), |
| GST_VIDEO_FORMAT_FLAG_RGB = (1 << 1), |
| GST_VIDEO_FORMAT_FLAG_GRAY = (1 << 2), |
| GST_VIDEO_FORMAT_FLAG_ALPHA = (1 << 3), |
| GST_VIDEO_FORMAT_FLAG_LE = (1 << 4), |
| GST_VIDEO_FORMAT_FLAG_PALETTE = (1 << 5), |
| GST_VIDEO_FORMAT_FLAG_COMPLEX = (1 << 6), |
| GST_VIDEO_FORMAT_FLAG_UNPACK = (1 << 7) |
| } GstVideoFormatFlags; |
| </pre> |
| <p> |
| The different video flags that a format info can have. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-YUV:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_YUV</code></span></p></td> |
| <td>The video format is YUV, components are numbered |
| 0=Y, 1=U, 2=V. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-RGB:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_RGB</code></span></p></td> |
| <td>The video format is RGB, components are numbered |
| 0=R, 1=G, 2=B. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-GRAY:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_GRAY</code></span></p></td> |
| <td>The video is gray, there is one gray component |
| with index 0. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-ALPHA:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_ALPHA</code></span></p></td> |
| <td>The video format has an alpha components with |
| the number 3. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-LE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_LE</code></span></p></td> |
| <td>The video format has data stored in little |
| endianness. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-PALETTE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_PALETTE</code></span></p></td> |
| <td>The video format has a palette. The palette |
| is stored in the second plane and indexes are stored in the first plane. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-COMPLEX:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_COMPLEX</code></span></p></td> |
| <td>The video format has a complex layout that |
| can't be described with the usual information in the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FORMAT-FLAG-UNPACK:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FORMAT_FLAG_UNPACK</code></span></p></td> |
| <td>This format can be used in a |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatUnpack" title="GstVideoFormatUnpack ()"><span class="type">GstVideoFormatUnpack</span></a> and <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatPack" title="GstVideoFormatPack ()"><span class="type">GstVideoFormatPack</span></a> function. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoPackFlags"></a><h3>enum GstVideoPackFlags</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_PACK_FLAG_NONE = 0, |
| GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE = (1 << 0), |
| GST_VIDEO_PACK_FLAG_INTERLACED = (1 << 1) |
| } GstVideoPackFlags; |
| </pre> |
| <p> |
| The different flags that can be used when packing and unpacking. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-PACK-FLAG-NONE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_PACK_FLAG_NONE</code></span></p></td> |
| <td>No flag |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-PACK-FLAG-TRUNCATE-RANGE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE</code></span></p></td> |
| <td>When the source has a smaller depth |
| than the target format, set the least significant bits of the target |
| to 0. This is likely sightly faster but less accurate. When this flag |
| is not specified, the most significant bits of the source are duplicated |
| in the least significant bits of the destination. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-PACK-FLAG-INTERLACED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_PACK_FLAG_INTERLACED</code></span></p></td> |
| <td>The source is interlaced. The unpacked |
| format will be interlaced as well with each line containing |
| information from alternating fields. (Since 1.2) |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFormatUnpack"></a><h3>GstVideoFormatUnpack ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> (*GstVideoFormatUnpack) (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoPackFlags" title="enum GstVideoPackFlags"><span class="type">GstVideoPackFlags</span></a> flags</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dest</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> x</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> y</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>);</pre> |
| <p> |
| Unpacks <em class="parameter"><code>width</code></em> pixels from the given planes and strides containing data of |
| format <em class="parameter"><code>info</code></em>. The pixels will be unpacked into <em class="parameter"><code>dest</code></em> which each component |
| interleaved. <em class="parameter"><code>dest</code></em> should at least be big enough to hold <em class="parameter"><code>width</code></em> * |
| n_components * size(unpack_format) bytes. |
| </p> |
| <p> |
| For subsampled formats, the components will be duplicated in the destination |
| array. Reconstruction of the missing components can be performed in a |
| separate step after unpacking. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td> |
| <td>flags to control the unpacking</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td> |
| <td>a destination array</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>pointers to the data planes</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td> |
| <td>strides of the planes</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td> |
| <td>the x position in the image to start from</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td> |
| <td>the y position in the image to start from</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td> |
| <td>the amount of pixels to unpack.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFormatPack"></a><h3>GstVideoFormatPack ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> (*GstVideoFormatPack) (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoPackFlags" title="enum GstVideoPackFlags"><span class="type">GstVideoPackFlags</span></a> flags</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> src</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> sstride</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> chroma_site</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> y</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>);</pre> |
| <p> |
| Packs <em class="parameter"><code>width</code></em> pixels from <em class="parameter"><code>src</code></em> to the given planes and strides in the |
| format <em class="parameter"><code>info</code></em>. The pixels from source have each component interleaved |
| and will be packed into the planes in <em class="parameter"><code>data</code></em>. |
| </p> |
| <p> |
| This function operates on pack_lines lines, meaning that <em class="parameter"><code>src</code></em> should |
| contain at least pack_lines lines with a stride of <em class="parameter"><code>sstride</code></em> and <em class="parameter"><code>y</code></em> |
| should be a multiple of pack_lines. |
| </p> |
| <p> |
| Subsampled formats will use the horizontally cosited component in the |
| destination. Subsampling should be performed before packing. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td> |
| <td>flags to control the packing</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td> |
| <td>a source array</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>sstride</code></em> :</span></p></td> |
| <td>the source array stride</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>pointers to the destination data planes</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td> |
| <td>strides of the destination planes</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>chroma_site</code></em> :</span></p></td> |
| <td>the chroma siting of the target when subsampled (not used)</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td> |
| <td>the y position in the image to pack to</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td> |
| <td>the amount of pixels to pack.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-FORMAT:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_FORMAT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_FORMAT(info) ((info)->format) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-NAME:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_NAME()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_NAME(info) ((info)->name) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-FLAGS:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_FLAGS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_FLAGS(info) ((info)->flags) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-IS-YUV:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_IS_YUV()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_IS_YUV(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_YUV) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-IS-RGB:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_IS_RGB()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_IS_RGB(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_RGB) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-IS-GRAY:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_IS_GRAY()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_IS_GRAY(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_GRAY) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-HAS-ALPHA:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_HAS_ALPHA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_HAS_ALPHA(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_ALPHA) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-IS-LE:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_IS_LE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_IS_LE(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_LE) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-HAS-PALETTE:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_HAS_PALETTE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_HAS_PALETTE(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_PALETTE) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-IS-COMPLEX:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_IS_COMPLEX()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_IS_COMPLEX(info) ((info)->flags & GST_VIDEO_FORMAT_FLAG_COMPLEX) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-BITS:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_BITS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_BITS(info) ((info)->bits) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-N-COMPONENTS:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_N_COMPONENTS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_N_COMPONENTS(info) ((info)->n_components) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-SHIFT:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_SHIFT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_SHIFT(info,c) ((info)->shift[c]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-DEPTH:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_DEPTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_DEPTH(info,c) ((info)->depth[c]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-PSTRIDE:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_PSTRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_PSTRIDE(info,c) ((info)->pixel_stride[c]) |
| </pre> |
| <p> |
| pixel stride for the given component. This is the amount of bytes to the |
| pixel immediately to the right, so basically bytes from one pixel to the |
| next. When bits < 8, the stride is expressed in bits. |
| </p> |
| <p> |
| Examples: for 24-bit RGB, the pixel stride would be 3 bytes, while it |
| would be 4 bytes for RGBx or ARGB, and 8 bytes for ARGB64 or AYUV64. |
| For planar formats such as I420 the pixel stride is usually 1. For |
| YUY2 it would be 2 bytes. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-N-PLANES:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_N_PLANES()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_N_PLANES(info) ((info)->n_planes) |
| </pre> |
| <p> |
| Number of planes. This is the number of planes the pixel layout is |
| organized in in memory. The number of planes can be less than the |
| number of components (e.g. Y,U,V,A or R, G, B, A) when multiple |
| components are packed into one plane. |
| </p> |
| <p> |
| Examples: RGB/RGBx/RGBA: 1 plane, 3/3/4 components; |
| I420: 3 planes, 3 components; NV21/NV12: 2 planes, 3 components. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-PLANE:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_PLANE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_PLANE(info,c) ((info)->plane[c]) |
| </pre> |
| <p> |
| Plane number where the given component can be found. A plane may |
| contain data for multiple components. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-POFFSET:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_POFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_POFFSET(info,c) ((info)->poffset[c]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-W-SUB:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_W_SUB()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_W_SUB(info,c) ((info)->w_sub[c]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-H-SUB:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_H_SUB()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_H_SUB(info,c) ((info)->h_sub[c]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-SUB-SCALE:CAPS"></a><h3>GST_VIDEO_SUB_SCALE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_SUB_SCALE(scale,val) (-((-((gint)(val)))>>(scale))) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-SCALE-WIDTH:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_SCALE_WIDTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(info,c,w) GST_VIDEO_SUB_SCALE ((info)->w_sub[c],(w)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-SCALE-HEIGHT:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(info,c,h) GST_VIDEO_SUB_SCALE ((info)->h_sub[c],(h)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-DATA:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_DATA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_DATA(info,planes,comp)</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-STRIDE:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_STRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_STRIDE(info,strides,comp) ((strides)[(info)->plane[comp]]) |
| </pre> |
| <p> |
| Row stride in bytes, that is number of bytes from the first pixel component |
| of a row to the first pixel component in the next row. This might include |
| some row padding (memory not actually used for anything, to make sure the |
| beginning of the next row is aligned in a particular way). |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMAT-INFO-OFFSET:CAPS"></a><h3>GST_VIDEO_FORMAT_INFO_OFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMAT_INFO_OFFSET(info,offsets,comp)</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-from-masks"></a><h3>gst_video_format_from_masks ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> gst_video_format_from_masks (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> depth</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> bpp</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> endianness</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> red_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> green_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> blue_mask</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> alpha_mask</code></em>);</pre> |
| <p> |
| Find the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> for the given parameters. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td> |
| <td>the amount of bits used for a pixel</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>bpp</code></em> :</span></p></td> |
| <td>the amount of bits used to store a pixel. This value is bigger than |
| <em class="parameter"><code>depth</code></em> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>endianness</code></em> :</span></p></td> |
| <td>the endianness of the masks, <a href="http://library.gnome.org/devel/glib/unstable/glib-Byte-Order-Macros.html#G-LITTLE-ENDIAN:CAPS"><span class="type">G_LITTLE_ENDIAN</span></a> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Byte-Order-Macros.html#G-BIG-ENDIAN:CAPS"><span class="type">G_BIG_ENDIAN</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>red_mask</code></em> :</span></p></td> |
| <td>the red mask</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>green_mask</code></em> :</span></p></td> |
| <td>the green mask</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>blue_mask</code></em> :</span></p></td> |
| <td>the blue mask</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>alpha_mask</code></em> :</span></p></td> |
| <td>the alpha mask, or 0 if no alpha mask</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> or GST_VIDEO_FORMAT_UNKNOWN when the parameters to |
| not specify a known format.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-from-fourcc"></a><h3>gst_video_format_from_fourcc ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> gst_video_format_from_fourcc (<em class="parameter"><code><span class="type">guint32</span> fourcc</code></em>);</pre> |
| <p> |
| Converts a FOURCC value into the corresponding <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a>. |
| If the FOURCC cannot be represented by <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a>, |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#GST-VIDEO-FORMAT-UNKNOWN:CAPS"><span class="type">GST_VIDEO_FORMAT_UNKNOWN</span></a> is returned. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>fourcc</code></em> :</span></p></td> |
| <td>a FOURCC value representing raw YUV video</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> describing the FOURCC value</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-to-fourcc"></a><h3>gst_video_format_to_fourcc ()</h3> |
| <pre class="programlisting"><span class="returnvalue">guint32</span> gst_video_format_to_fourcc (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>);</pre> |
| <p> |
| Converts a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> value into the corresponding FOURCC. Only |
| a few YUV formats have corresponding FOURCC values. If <em class="parameter"><code>format</code></em> has |
| no corresponding FOURCC value, 0 is returned. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> video format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the FOURCC corresponding to <em class="parameter"><code>format</code></em> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-from-string"></a><h3>gst_video_format_from_string ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="returnvalue">GstVideoFormat</span></a> gst_video_format_from_string (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>);</pre> |
| <p> |
| Convert the <em class="parameter"><code>format</code></em> string to its <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td> |
| <td>a format string</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> for <em class="parameter"><code>format</code></em> or GST_VIDEO_FORMAT_UNKNOWN when the |
| string is not a known format.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-to-string"></a><h3>gst_video_format_to_string ()</h3> |
| <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * gst_video_format_to_string (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-format-get-info"></a><h3>gst_video_format_get_info ()</h3> |
| <pre class="programlisting">const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="returnvalue">GstVideoFormatInfo</span></a> * gst_video_format_get_info (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>);</pre> |
| <p> |
| Get the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> for <em class="parameter"><code>format</code></em> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>The <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> for <em class="parameter"><code>format</code></em>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-SIZE-RANGE:CAPS"></a><h3>GST_VIDEO_SIZE_RANGE</h3> |
| <pre class="programlisting">#define GST_VIDEO_SIZE_RANGE "(int) [ 1, max ]" |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FPS-RANGE:CAPS"></a><h3>GST_VIDEO_FPS_RANGE</h3> |
| <pre class="programlisting">#define GST_VIDEO_FPS_RANGE "(fraction) [ 0, max ]" |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FORMATS-ALL:CAPS"></a><h3>GST_VIDEO_FORMATS_ALL</h3> |
| <pre class="programlisting">#define GST_VIDEO_FORMATS_ALL</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-CAPS-MAKE:CAPS"></a><h3>GST_VIDEO_CAPS_MAKE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_CAPS_MAKE(format)</pre> |
| <p> |
| Generic caps string for video, for use in pad templates. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td> |
| <td>string format that describes the pixel layout, as string |
| (e.g. "I420", "RGB", "YV12", "YUY2", "AYUV", etc.)</td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoColorRange"></a><h3>enum GstVideoColorRange</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_COLOR_RANGE_UNKNOWN = 0, |
| GST_VIDEO_COLOR_RANGE_0_255, |
| GST_VIDEO_COLOR_RANGE_16_235 |
| } GstVideoColorRange; |
| </pre> |
| <p> |
| Possible color range values. These constants are defined for 8 bit color |
| values and can be scaled for other bit depths. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-RANGE-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_RANGE_UNKNOWN</code></span></p></td> |
| <td>unknown range |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-RANGE-0-255:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_RANGE_0_255</code></span></p></td> |
| <td>[0..255] for 8 bit components |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-RANGE-16-235:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_RANGE_16_235</code></span></p></td> |
| <td>[16..235] for 8 bit components. Chroma has |
| [16..240] range. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoColorMatrix"></a><h3>enum GstVideoColorMatrix</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_COLOR_MATRIX_UNKNOWN = 0, |
| GST_VIDEO_COLOR_MATRIX_RGB, |
| GST_VIDEO_COLOR_MATRIX_FCC, |
| GST_VIDEO_COLOR_MATRIX_BT709, |
| GST_VIDEO_COLOR_MATRIX_BT601, |
| GST_VIDEO_COLOR_MATRIX_SMPTE240M |
| } GstVideoColorMatrix; |
| </pre> |
| <p> |
| The color matrix is used to convert between Y'PbPr and |
| non-linear RGB (R'G'B') |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_UNKNOWN</code></span></p></td> |
| <td>unknown matrix |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-RGB:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_RGB</code></span></p></td> |
| <td>identity matrix |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-FCC:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_FCC</code></span></p></td> |
| <td>FCC color matrix |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-BT709:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_BT709</code></span></p></td> |
| <td>ITU-R BT.709 color matrix |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-BT601:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_BT601</code></span></p></td> |
| <td>ITU-R BT.601 color matrix |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-MATRIX-SMPTE240M:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_MATRIX_SMPTE240M</code></span></p></td> |
| <td>SMPTE 240M color matrix |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoTransferFunction"></a><h3>enum GstVideoTransferFunction</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_TRANSFER_UNKNOWN = 0, |
| GST_VIDEO_TRANSFER_GAMMA10, |
| GST_VIDEO_TRANSFER_GAMMA18, |
| GST_VIDEO_TRANSFER_GAMMA20, |
| GST_VIDEO_TRANSFER_GAMMA22, |
| GST_VIDEO_TRANSFER_BT709, |
| GST_VIDEO_TRANSFER_SMPTE240M, |
| GST_VIDEO_TRANSFER_SRGB, |
| GST_VIDEO_TRANSFER_GAMMA28, |
| GST_VIDEO_TRANSFER_LOG100, |
| GST_VIDEO_TRANSFER_LOG316 |
| } GstVideoTransferFunction; |
| </pre> |
| <p> |
| The video transfer function defines the formula for converting between |
| non-linear RGB (R'G'B') and linear RGB |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_UNKNOWN</code></span></p></td> |
| <td>unknown transfer function |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-GAMMA10:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_GAMMA10</code></span></p></td> |
| <td>linear RGB, gamma 1.0 curve |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-GAMMA18:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_GAMMA18</code></span></p></td> |
| <td>Gamma 1.8 curve |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-GAMMA20:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_GAMMA20</code></span></p></td> |
| <td>Gamma 2.0 curve |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-GAMMA22:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_GAMMA22</code></span></p></td> |
| <td>Gamma 2.2 curve |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-BT709:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_BT709</code></span></p></td> |
| <td>Gamma 2.2 curve with a linear segment in the lower |
| range |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-SMPTE240M:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_SMPTE240M</code></span></p></td> |
| <td>Gamma 2.2 curve with a linear segment in the |
| lower range |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-SRGB:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_SRGB</code></span></p></td> |
| <td>Gamma 2.4 curve with a linear segment in the lower |
| range |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-GAMMA28:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_GAMMA28</code></span></p></td> |
| <td>Gamma 2.8 curve |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-LOG100:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_LOG100</code></span></p></td> |
| <td>Logarithmic transfer characteristic |
| 100:1 range |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-TRANSFER-LOG316:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TRANSFER_LOG316</code></span></p></td> |
| <td>Logarithmic transfer characteristic |
| 316.22777:1 range |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoColorPrimaries"></a><h3>enum GstVideoColorPrimaries</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_COLOR_PRIMARIES_UNKNOWN = 0, |
| GST_VIDEO_COLOR_PRIMARIES_BT709, |
| GST_VIDEO_COLOR_PRIMARIES_BT470M, |
| GST_VIDEO_COLOR_PRIMARIES_BT470BG, |
| GST_VIDEO_COLOR_PRIMARIES_SMPTE170M, |
| GST_VIDEO_COLOR_PRIMARIES_SMPTE240M, |
| GST_VIDEO_COLOR_PRIMARIES_FILM |
| } GstVideoColorPrimaries; |
| </pre> |
| <p> |
| The color primaries define the how to transform linear RGB values to and from |
| the CIE XYZ colorspace. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-UNKNOWN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_UNKNOWN</code></span></p></td> |
| <td>unknown color primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-BT709:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_BT709</code></span></p></td> |
| <td>BT709 primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-BT470M:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_BT470M</code></span></p></td> |
| <td>BT470M primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-BT470BG:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_BT470BG</code></span></p></td> |
| <td>BT470BG primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-SMPTE170M:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_SMPTE170M</code></span></p></td> |
| <td>SMPTE170M primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-SMPTE240M:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_SMPTE240M</code></span></p></td> |
| <td>SMPTE240M primaries |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-COLOR-PRIMARIES-FILM:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_COLOR_PRIMARIES_FILM</code></span></p></td> |
| <td>Generic film |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoColorimetry"></a><h3>GstVideoColorimetry</h3> |
| <pre class="programlisting">typedef struct { |
| GstVideoColorRange range; |
| GstVideoColorMatrix matrix; |
| GstVideoTransferFunction transfer; |
| GstVideoColorPrimaries primaries; |
| } GstVideoColorimetry; |
| </pre> |
| <p> |
| Structure describing the color info. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorRange" title="enum GstVideoColorRange"><span class="type">GstVideoColorRange</span></a> <em class="structfield"><code><a name="GstVideoColorimetry.range"></a>range</code></em>;</span></p></td> |
| <td>the color range. This is the valid range for the samples. |
| It is used to convert the samples to Y'PbPr values.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorMatrix" title="enum GstVideoColorMatrix"><span class="type">GstVideoColorMatrix</span></a> <em class="structfield"><code><a name="GstVideoColorimetry.matrix"></a>matrix</code></em>;</span></p></td> |
| <td>the color matrix. Used to convert between Y'PbPr and |
| non-linear RGB (R'G'B')</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoTransferFunction" title="enum GstVideoTransferFunction"><span class="type">GstVideoTransferFunction</span></a> <em class="structfield"><code><a name="GstVideoColorimetry.transfer"></a>transfer</code></em>;</span></p></td> |
| <td>the transfer function. used to convert between R'G'B' and RGB</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorPrimaries" title="enum GstVideoColorPrimaries"><span class="type">GstVideoColorPrimaries</span></a> <em class="structfield"><code><a name="GstVideoColorimetry.primaries"></a>primaries</code></em>;</span></p></td> |
| <td>color primaries. used to convert between R'G'B' and CIE XYZ</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-colorimetry-matches"></a><h3>gst_video_colorimetry_matches ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_colorimetry_matches (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *color</code></em>);</pre> |
| <p> |
| Check if the colorimetry information in <em class="parameter"><code>info</code></em> matches that of the |
| string <em class="parameter"><code>color</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>color</code></em> :</span></p></td> |
| <td>a colorimetry string</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><span class="type">TRUE</span></a> if <em class="parameter"><code>color</code></em> conveys the same colorimetry info as the color |
| information in <em class="parameter"><code>info</code></em>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-colorimetry-from-string"></a><h3>gst_video_colorimetry_from_string ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_colorimetry_from_string (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *color</code></em>);</pre> |
| <p> |
| Parse the colorimetry string and update <em class="parameter"><code>cinfo</code></em> with the parsed |
| values. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>cinfo</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>color</code></em> :</span></p></td> |
| <td>a colorimetry string</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><span class="type">TRUE</span></a> if <em class="parameter"><code>color</code></em> points to valid colorimetry info.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-colorimetry-to-string"></a><h3>gst_video_colorimetry_to_string ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * gst_video_colorimetry_to_string (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> *cinfo</code></em>);</pre> |
| <p> |
| Make a string representation of <em class="parameter"><code>cinfo</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>cinfo</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>a string representation of <em class="parameter"><code>cinfo</code></em>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-color-range-offsets"></a><h3>gst_video_color_range_offsets ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_color_range_offsets (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorRange" title="enum GstVideoColorRange"><span class="type">GstVideoColorRange</span></a> range</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> offset[GST_VIDEO_MAX_COMPONENTS]</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> scale[GST_VIDEO_MAX_COMPONENTS]</code></em>);</pre> |
| <p> |
| Compute the offset and scale values for each component of <em class="parameter"><code>info</code></em>. For each |
| component, (c[i] - offset[i]) / scale[i] will scale the component c[i] to the |
| range [0.0 .. 1.0]. |
| </p> |
| <p> |
| The reverse operation (c[i] * scale[i]) + offset[i] can be used to convert |
| the component values in range [0.0 .. 1.0] back to their representation in |
| <em class="parameter"><code>info</code></em> and <em class="parameter"><code>range</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>range</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorRange" title="enum GstVideoColorRange"><span class="type">GstVideoColorRange</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>offsets</code></em> :</span></p></td> |
| <td>output offsets. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>scale</code></em> :</span></p></td> |
| <td>output scale. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoInfo"></a><h3>struct GstVideoInfo</h3> |
| <pre class="programlisting">struct GstVideoInfo { |
| const GstVideoFormatInfo *finfo; |
| |
| GstVideoInterlaceMode interlace_mode; |
| GstVideoFlags flags; |
| gint width; |
| gint height; |
| gsize size; |
| gint views; |
| |
| GstVideoChromaSite chroma_site; |
| GstVideoColorimetry colorimetry; |
| |
| gint par_n; |
| gint par_d; |
| gint fps_n; |
| gint fps_d; |
| |
| gsize offset[GST_VIDEO_MAX_PLANES]; |
| gint stride[GST_VIDEO_MAX_PLANES]; |
| }; |
| </pre> |
| <p> |
| Information describing image properties. This information can be filled |
| in from GstCaps with <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-info-from-caps" title="gst_video_info_from_caps ()"><code class="function">gst_video_info_from_caps()</code></a>. The information is also used |
| to store the specific video info when mapping a video frame with |
| <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-map" title="gst_video_frame_map ()"><code class="function">gst_video_frame_map()</code></a>. |
| </p> |
| <p> |
| Use the provided macros to access the info in this structure. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term">const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormatInfo" title="struct GstVideoFormatInfo"><span class="type">GstVideoFormatInfo</span></a> *<em class="structfield"><code><a name="GstVideoInfo.finfo"></a>finfo</code></em>;</span></p></td> |
| <td>the format info of the video</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInterlaceMode" title="enum GstVideoInterlaceMode"><span class="type">GstVideoInterlaceMode</span></a> <em class="structfield"><code><a name="GstVideoInfo.interlace-mode"></a>interlace_mode</code></em>;</span></p></td> |
| <td>the interlace mode</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFlags" title="enum GstVideoFlags"><span class="type">GstVideoFlags</span></a> <em class="structfield"><code><a name="GstVideoInfo.flags"></a>flags</code></em>;</span></p></td> |
| <td>additional video flags</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.width"></a>width</code></em>;</span></p></td> |
| <td>the width of the video</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.height"></a>height</code></em>;</span></p></td> |
| <td>the height of the video</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="type">gsize</span> <em class="structfield"><code><a name="GstVideoInfo.size"></a>size</code></em>;</span></p></td> |
| <td>the default size of one frame</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.views"></a>views</code></em>;</span></p></td> |
| <td>the number of views for multiview video</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a> <em class="structfield"><code><a name="GstVideoInfo.chroma-site"></a>chroma_site</code></em>;</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoChromaSite" title="enum GstVideoChromaSite"><span class="type">GstVideoChromaSite</span></a>.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoColorimetry" title="GstVideoColorimetry"><span class="type">GstVideoColorimetry</span></a> <em class="structfield"><code><a name="GstVideoInfo.colorimetry"></a>colorimetry</code></em>;</span></p></td> |
| <td>the colorimetry info</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.par-n"></a>par_n</code></em>;</span></p></td> |
| <td>the pixel-aspect-ratio numerator</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.par-d"></a>par_d</code></em>;</span></p></td> |
| <td>the pixel-aspect-ratio demnominator</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.fps-n"></a>fps_n</code></em>;</span></p></td> |
| <td>the framerate numerator</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.fps-d"></a>fps_d</code></em>;</span></p></td> |
| <td>the framerate demnominator</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="type">gsize</span> <em class="structfield"><code><a name="GstVideoInfo.offset"></a>offset</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td> |
| <td>offsets of the planes</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoInfo.stride"></a>stride</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td> |
| <td>strides of the planes</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoInterlaceMode"></a><h3>enum GstVideoInterlaceMode</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_INTERLACE_MODE_PROGRESSIVE = 0, |
| GST_VIDEO_INTERLACE_MODE_INTERLEAVED, |
| GST_VIDEO_INTERLACE_MODE_MIXED, |
| GST_VIDEO_INTERLACE_MODE_FIELDS |
| } GstVideoInterlaceMode; |
| </pre> |
| <p> |
| The possible values of the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInterlaceMode" title="enum GstVideoInterlaceMode"><span class="type">GstVideoInterlaceMode</span></a> describing the interlace |
| mode of the stream. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-INTERLACE-MODE-PROGRESSIVE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_INTERLACE_MODE_PROGRESSIVE</code></span></p></td> |
| <td>all frames are progressive |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-INTERLACE-MODE-INTERLEAVED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_INTERLACE_MODE_INTERLEAVED</code></span></p></td> |
| <td>2 fields are interleaved in one video |
| frame. Extra buffer flags describe the field order. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-INTERLACE-MODE-MIXED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_INTERLACE_MODE_MIXED</code></span></p></td> |
| <td>frames contains both interlaced and |
| progressive video, the buffer flags describe the frame and fields. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-INTERLACE-MODE-FIELDS:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_INTERLACE_MODE_FIELDS</code></span></p></td> |
| <td>2 fields are stored in one buffer, use the |
| frame ID to get access to the required field. For multiview (the |
| 'views' property > 1) the fields of view N can be found at frame ID |
| (N * 2) and (N * 2) + 1. |
| Each field has only half the amount of lines as noted in the |
| height property. This mode requires multiple GstVideoMeta metadata |
| to describe the fields. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFlags"></a><h3>enum GstVideoFlags</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_FLAG_NONE = 0, |
| GST_VIDEO_FLAG_VARIABLE_FPS = (1 << 0), |
| GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA = (1 << 1) |
| } GstVideoFlags; |
| </pre> |
| <p> |
| Extra video flags |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-FLAG-NONE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FLAG_NONE</code></span></p></td> |
| <td>no flags |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FLAG-VARIABLE-FPS:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FLAG_VARIABLE_FPS</code></span></p></td> |
| <td>a variable fps is selected, fps_n and fps_d |
| denote the maximum fps of the video |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FLAG-PREMULTIPLIED-ALPHA:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA</code></span></p></td> |
| <td>Each color has been scaled by the alpha |
| value. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FORMAT:CAPS"></a><h3>GST_VIDEO_INFO_FORMAT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FORMAT(i) (GST_VIDEO_FORMAT_INFO_FORMAT((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-NAME:CAPS"></a><h3>GST_VIDEO_INFO_NAME()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_NAME(i) (GST_VIDEO_FORMAT_INFO_NAME((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-IS-YUV:CAPS"></a><h3>GST_VIDEO_INFO_IS_YUV()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_IS_YUV(i) (GST_VIDEO_FORMAT_INFO_IS_YUV((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-IS-RGB:CAPS"></a><h3>GST_VIDEO_INFO_IS_RGB()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_IS_RGB(i) (GST_VIDEO_FORMAT_INFO_IS_RGB((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-IS-GRAY:CAPS"></a><h3>GST_VIDEO_INFO_IS_GRAY()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_IS_GRAY(i) (GST_VIDEO_FORMAT_INFO_IS_GRAY((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-HAS-ALPHA:CAPS"></a><h3>GST_VIDEO_INFO_HAS_ALPHA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_HAS_ALPHA(i) (GST_VIDEO_FORMAT_INFO_HAS_ALPHA((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-INTERLACE-MODE:CAPS"></a><h3>GST_VIDEO_INFO_INTERLACE_MODE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_INTERLACE_MODE(i) ((i)->interlace_mode) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-IS-INTERLACED:CAPS"></a><h3>GST_VIDEO_INFO_IS_INTERLACED()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_IS_INTERLACED(i) ((i)->interlace_mode != GST_VIDEO_INTERLACE_MODE_PROGRESSIVE) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FLAGS:CAPS"></a><h3>GST_VIDEO_INFO_FLAGS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FLAGS(i) ((i)->flags) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-WIDTH:CAPS"></a><h3>GST_VIDEO_INFO_WIDTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_WIDTH(i) ((i)->width) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-HEIGHT:CAPS"></a><h3>GST_VIDEO_INFO_HEIGHT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_HEIGHT(i) ((i)->height) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-SIZE:CAPS"></a><h3>GST_VIDEO_INFO_SIZE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_SIZE(i) ((i)->size) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-VIEWS:CAPS"></a><h3>GST_VIDEO_INFO_VIEWS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_VIEWS(i) ((i)->views) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-PAR-N:CAPS"></a><h3>GST_VIDEO_INFO_PAR_N()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_PAR_N(i) ((i)->par_n) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-PAR-D:CAPS"></a><h3>GST_VIDEO_INFO_PAR_D()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_PAR_D(i) ((i)->par_d) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FPS-N:CAPS"></a><h3>GST_VIDEO_INFO_FPS_N()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FPS_N(i) ((i)->fps_n) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FPS-D:CAPS"></a><h3>GST_VIDEO_INFO_FPS_D()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FPS_D(i) ((i)->fps_d) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FLAG-IS-SET:CAPS"></a><h3>GST_VIDEO_INFO_FLAG_IS_SET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FLAG_IS_SET(i,flag) ((GST_VIDEO_INFO_FLAGS(i) & (flag)) == (flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FLAG-SET:CAPS"></a><h3>GST_VIDEO_INFO_FLAG_SET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FLAG_SET(i,flag) (GST_VIDEO_INFO_FLAGS(i) |= (flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-FLAG-UNSET:CAPS"></a><h3>GST_VIDEO_INFO_FLAG_UNSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_FLAG_UNSET(i,flag) (GST_VIDEO_INFO_FLAGS(i) &= ~(flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-N-PLANES:CAPS"></a><h3>GST_VIDEO_INFO_N_PLANES()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_N_PLANES(i) (GST_VIDEO_FORMAT_INFO_N_PLANES((i)->finfo)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-PLANE-OFFSET:CAPS"></a><h3>GST_VIDEO_INFO_PLANE_OFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_PLANE_OFFSET(i,p) ((i)->offset[p]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-PLANE-STRIDE:CAPS"></a><h3>GST_VIDEO_INFO_PLANE_STRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_PLANE_STRIDE(i,p) ((i)->stride[p]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-N-COMPONENTS:CAPS"></a><h3>GST_VIDEO_INFO_N_COMPONENTS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_N_COMPONENTS(i) GST_VIDEO_FORMAT_INFO_N_COMPONENTS((i)->finfo) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-DEPTH:CAPS"></a><h3>GST_VIDEO_INFO_COMP_DEPTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_DEPTH(i,c) GST_VIDEO_FORMAT_INFO_DEPTH((i)->finfo,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-DATA:CAPS"></a><h3>GST_VIDEO_INFO_COMP_DATA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_DATA(i,d,c) GST_VIDEO_FORMAT_INFO_DATA((i)->finfo,d,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-OFFSET:CAPS"></a><h3>GST_VIDEO_INFO_COMP_OFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_OFFSET(i,c) GST_VIDEO_FORMAT_INFO_OFFSET((i)->finfo,(i)->offset,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-STRIDE:CAPS"></a><h3>GST_VIDEO_INFO_COMP_STRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_STRIDE(i,c) GST_VIDEO_FORMAT_INFO_STRIDE((i)->finfo,(i)->stride,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-WIDTH:CAPS"></a><h3>GST_VIDEO_INFO_COMP_WIDTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_WIDTH(i,c) GST_VIDEO_FORMAT_INFO_SCALE_WIDTH((i)->finfo,(c),(i)->width) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-HEIGHT:CAPS"></a><h3>GST_VIDEO_INFO_COMP_HEIGHT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_HEIGHT(i,c) GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT((i)->finfo,(c),(i)->height) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-PLANE:CAPS"></a><h3>GST_VIDEO_INFO_COMP_PLANE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_PLANE(i,c) GST_VIDEO_FORMAT_INFO_PLANE((i)->finfo,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-PSTRIDE:CAPS"></a><h3>GST_VIDEO_INFO_COMP_PSTRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_PSTRIDE(i,c) GST_VIDEO_FORMAT_INFO_PSTRIDE((i)->finfo,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-INFO-COMP-POFFSET:CAPS"></a><h3>GST_VIDEO_INFO_COMP_POFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_INFO_COMP_POFFSET(i,c) GST_VIDEO_FORMAT_INFO_POFFSET((i)->finfo,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-init"></a><h3>gst_video_info_init ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_info_init (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>);</pre> |
| <p> |
| Initialize <em class="parameter"><code>info</code></em> with default values. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-set-format"></a><h3>gst_video_info_set_format ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_info_set_format (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>);</pre> |
| <p> |
| Set the default info for a video frame of <em class="parameter"><code>format</code></em> and <em class="parameter"><code>width</code></em> and <em class="parameter"><code>height</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td> |
| <td>the format</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td> |
| <td>a width</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td> |
| <td>a height</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-from-caps"></a><h3>gst_video_info_from_caps ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_info_from_caps (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code>const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p> |
| Parse <em class="parameter"><code>caps</code></em> and update <em class="parameter"><code>info</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>caps</code></em> :</span></p></td> |
| <td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if <em class="parameter"><code>caps</code></em> could be parsed</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-to-caps"></a><h3>gst_video_info_to_caps ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_video_info_to_caps (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>);</pre> |
| <p> |
| Convert the values of <em class="parameter"><code>info</code></em> into a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>a new <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> containing the info of <em class="parameter"><code>info</code></em>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-convert"></a><h3>gst_video_info_convert ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_info_convert (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> src_format</code></em>, |
| <em class="parameter"><code><span class="type">gint64</span> src_value</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> dest_format</code></em>, |
| <em class="parameter"><code><span class="type">gint64</span> *dest_value</code></em>);</pre> |
| <p> |
| Converts among various <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> types. This function handles |
| GST_FORMAT_BYTES, GST_FORMAT_TIME, and GST_FORMAT_DEFAULT. For |
| raw video, GST_FORMAT_DEFAULT corresponds to video frames. This |
| function can be used to handle pad queries of the type GST_QUERY_CONVERT. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>src_format</code></em> :</span></p></td> |
| <td> |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> of the <em class="parameter"><code>src_value</code></em> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>src_value</code></em> :</span></p></td> |
| <td>value to convert</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dest_format</code></em> :</span></p></td> |
| <td> |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat"><span class="type">GstFormat</span></a> of the <em class="parameter"><code>dest_value</code></em> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dest_value</code></em> :</span></p></td> |
| <td>pointer to destination value</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if the conversion was successful.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-is-equal"></a><h3>gst_video_info_is_equal ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_info_is_equal (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *other</code></em>);</pre> |
| <p> |
| Compares two <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> and returns whether they are equal or not |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>other</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>info</code></em> and <em class="parameter"><code>other</code></em> are equal, else <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-info-align"></a><h3>gst_video_info_align ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_info_align (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoAlignment" title="struct GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *align</code></em>);</pre> |
| <p> |
| Adjust the offset and stride fields in <em class="parameter"><code>info</code></em> so that the padding and |
| stride alignment in <em class="parameter"><code>align</code></em> is respected. |
| </p> |
| <p> |
| Extra padding will be added to the right side when stride alignment padding |
| is required and <em class="parameter"><code>align</code></em> will be updated with the new padding values. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>align</code></em> :</span></p></td> |
| <td>alignment parameters</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFrame"></a><h3>struct GstVideoFrame</h3> |
| <pre class="programlisting">struct GstVideoFrame { |
| GstVideoInfo info; |
| GstVideoFrameFlags flags; |
| |
| GstBuffer *buffer; |
| gpointer meta; |
| gint id; |
| |
| gpointer data[GST_VIDEO_MAX_PLANES]; |
| GstMapInfo map[GST_VIDEO_MAX_PLANES]; |
| }; |
| </pre> |
| <p> |
| A video frame obtained from <a class="link" href="gst-plugins-base-libs-gstvideo.html#gst-video-frame-map" title="gst_video_frame_map ()"><code class="function">gst_video_frame_map()</code></a> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> <em class="structfield"><code><a name="GstVideoFrame.info"></a>info</code></em>;</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> <em class="structfield"><code><a name="GstVideoFrame.flags"></a>flags</code></em>;</span></p></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *<em class="structfield"><code><a name="GstVideoFrame.buffer"></a>buffer</code></em>;</span></p></td> |
| <td>the mapped buffer</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GstVideoFrame.meta"></a>meta</code></em>;</span></p></td> |
| <td>pointer to metadata if any</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoFrame.id"></a>id</code></em>;</span></p></td> |
| <td>id of the mapped frame. the id can for example be used to |
| indentify the frame in case of multiview video.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GstVideoFrame.data"></a>data</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td> |
| <td>pointers to the plane data</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> <em class="structfield"><code><a name="GstVideoFrame.map"></a>map</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td> |
| <td>mappings of the planes</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFrameFlags"></a><h3>enum GstVideoFrameFlags</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_FRAME_FLAG_NONE = 0, |
| GST_VIDEO_FRAME_FLAG_INTERLACED = (1 << 0), |
| GST_VIDEO_FRAME_FLAG_TFF = (1 << 1), |
| GST_VIDEO_FRAME_FLAG_RFF = (1 << 2), |
| GST_VIDEO_FRAME_FLAG_ONEFIELD = (1 << 3) |
| } GstVideoFrameFlags; |
| </pre> |
| <p> |
| Extra video frame flags |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-FRAME-FLAG-NONE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FRAME_FLAG_NONE</code></span></p></td> |
| <td>no flags |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FRAME-FLAG-INTERLACED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FRAME_FLAG_INTERLACED</code></span></p></td> |
| <td>The video frame is interlaced. In mixed |
| interlace-mode, this flags specifies if the frame is interlace or |
| progressive. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FRAME-FLAG-TFF:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FRAME_FLAG_TFF</code></span></p></td> |
| <td>The video frame has the top field first |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FRAME-FLAG-RFF:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FRAME_FLAG_RFF</code></span></p></td> |
| <td>The video frame has the repeat flag |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-FRAME-FLAG-ONEFIELD:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_FRAME_FLAG_ONEFIELD</code></span></p></td> |
| <td>The video frame has one field |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-frame-map-id"></a><h3>gst_video_frame_map_id ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_frame_map_id (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>);</pre> |
| <p> |
| Use <em class="parameter"><code>info</code></em> and <em class="parameter"><code>buffer</code></em> to fill in the values of <em class="parameter"><code>frame</code></em> with the video frame |
| information of frame <em class="parameter"><code>id</code></em>. |
| </p> |
| <p> |
| When <em class="parameter"><code>id</code></em> is -1, the default frame is mapped. When <em class="parameter"><code>id</code></em> != -1, this function |
| will return <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> when there is no GstVideoMeta with that id. |
| </p> |
| <p> |
| All video planes of <em class="parameter"><code>buffer</code></em> will be mapped and the pointers will be set in |
| <em class="parameter"><code>frame->data</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>frame</code></em> :</span></p></td> |
| <td>pointer to <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td> |
| <td>the buffer to map</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>id</code></em> :</span></p></td> |
| <td>the frame id to map</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td> |
| <td><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-frame-map"></a><h3>gst_video_frame_map ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_frame_map (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *info</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>);</pre> |
| <p> |
| Use <em class="parameter"><code>info</code></em> and <em class="parameter"><code>buffer</code></em> to fill in the values of <em class="parameter"><code>frame</code></em>. |
| </p> |
| <p> |
| All video planes of <em class="parameter"><code>buffer</code></em> will be mapped and the pointers will be set in |
| <em class="parameter"><code>frame->data</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>frame</code></em> :</span></p></td> |
| <td>pointer to <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td> |
| <td>the buffer to map</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td> |
| <td><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-frame-unmap"></a><h3>gst_video_frame_unmap ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_video_frame_unmap (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *frame</code></em>);</pre> |
| <p> |
| Unmap the memory previously mapped with gst_video_frame_map. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>frame</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-frame-copy"></a><h3>gst_video_frame_copy ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_frame_copy (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *dest</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *src</code></em>);</pre> |
| <p> |
| Copy the contents from <em class="parameter"><code>src</code></em> to <em class="parameter"><code>dest</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if the contents could be copied.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-video-frame-copy-plane"></a><h3>gst_video_frame_copy_plane ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_frame_copy_plane (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *dest</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> *src</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>);</pre> |
| <p> |
| Copy the plane with index <em class="parameter"><code>plane</code></em> from <em class="parameter"><code>src</code></em> to <em class="parameter"><code>dest</code></em>. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td> |
| <td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrame" title="struct GstVideoFrame"><span class="type">GstVideoFrame</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>plane</code></em> :</span></p></td> |
| <td>a plane</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if the contents could be copied.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-FORMAT:CAPS"></a><h3>GST_VIDEO_FRAME_FORMAT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_FORMAT(f) (GST_VIDEO_INFO_FORMAT(&(f)->info)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-WIDTH:CAPS"></a><h3>GST_VIDEO_FRAME_WIDTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_WIDTH(f) (GST_VIDEO_INFO_WIDTH(&(f)->info)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-HEIGHT:CAPS"></a><h3>GST_VIDEO_FRAME_HEIGHT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_HEIGHT(f) (GST_VIDEO_INFO_HEIGHT(&(f)->info)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-SIZE:CAPS"></a><h3>GST_VIDEO_FRAME_SIZE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_SIZE(f) (GST_VIDEO_INFO_SIZE(&(f)->info)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-FLAGS:CAPS"></a><h3>GST_VIDEO_FRAME_FLAGS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_FLAGS(f) ((f)->flags) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-FLAG-IS-SET:CAPS"></a><h3>GST_VIDEO_FRAME_FLAG_IS_SET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_FLAG_IS_SET(f,fl) ((GST_VIDEO_FRAME_FLAGS(f) & (fl)) == (fl)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-IS-INTERLACED:CAPS"></a><h3>GST_VIDEO_FRAME_IS_INTERLACED()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_IS_INTERLACED(f) (GST_VIDEO_FRAME_FLAG_IS_SET(f, GST_VIDEO_FRAME_FLAG_INTERLACED)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-IS-TFF:CAPS"></a><h3>GST_VIDEO_FRAME_IS_TFF()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_IS_TFF(f) (GST_VIDEO_FRAME_FLAG_IS_SET(f, GST_VIDEO_FRAME_FLAG_TFF)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-IS-RFF:CAPS"></a><h3>GST_VIDEO_FRAME_IS_RFF()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_IS_RFF(f) (GST_VIDEO_FRAME_FLAG_IS_SET(f, GST_VIDEO_FRAME_FLAG_RFF)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-IS-ONEFIELD:CAPS"></a><h3>GST_VIDEO_FRAME_IS_ONEFIELD()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_IS_ONEFIELD(f) (GST_VIDEO_FRAME_FLAG_IS_SET(f, GST_VIDEO_FRAME_FLAG_ONEFIELD)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-N-PLANES:CAPS"></a><h3>GST_VIDEO_FRAME_N_PLANES()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_N_PLANES(f) (GST_VIDEO_INFO_N_PLANES(&(f)->info)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-PLANE-DATA:CAPS"></a><h3>GST_VIDEO_FRAME_PLANE_DATA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_PLANE_DATA(f,p) ((f)->data[p]) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-PLANE-OFFSET:CAPS"></a><h3>GST_VIDEO_FRAME_PLANE_OFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_PLANE_OFFSET(f,p) (GST_VIDEO_INFO_PLANE_OFFSET(&(f)->info,(p))) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-PLANE-STRIDE:CAPS"></a><h3>GST_VIDEO_FRAME_PLANE_STRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_PLANE_STRIDE(f,p) (GST_VIDEO_INFO_PLANE_STRIDE(&(f)->info,(p))) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-N-COMPONENTS:CAPS"></a><h3>GST_VIDEO_FRAME_N_COMPONENTS()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_N_COMPONENTS(f) GST_VIDEO_INFO_N_COMPONENTS(&(f)->info) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-DEPTH:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_DEPTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_DEPTH(f,c) GST_VIDEO_INFO_COMP_DEPTH(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-DATA:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_DATA()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_DATA(f,c) GST_VIDEO_INFO_COMP_DATA(&(f)->info,(f)->data,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-STRIDE:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_STRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_STRIDE(f,c) GST_VIDEO_INFO_COMP_STRIDE(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-OFFSET:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_OFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_OFFSET(f,c) GST_VIDEO_INFO_COMP_OFFSET(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-WIDTH:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_WIDTH()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_WIDTH(f,c) GST_VIDEO_INFO_COMP_WIDTH(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-HEIGHT:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_HEIGHT()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_HEIGHT(f,c) GST_VIDEO_INFO_COMP_HEIGHT(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-PLANE:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_PLANE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_PLANE(f,c) GST_VIDEO_INFO_COMP_PLANE(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-PSTRIDE:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_PSTRIDE()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_PSTRIDE(f,c) GST_VIDEO_INFO_COMP_PSTRIDE(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-VIDEO-FRAME-COMP-POFFSET:CAPS"></a><h3>GST_VIDEO_FRAME_COMP_POFFSET()</h3> |
| <pre class="programlisting">#define GST_VIDEO_FRAME_COMP_POFFSET(f,c) GST_VIDEO_INFO_COMP_POFFSET(&(f)->info,(c)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoBufferFlags"></a><h3>enum GstVideoBufferFlags</h3> |
| <pre class="programlisting">typedef enum { |
| GST_VIDEO_BUFFER_FLAG_INTERLACED = (GST_BUFFER_FLAG_LAST << 0), |
| GST_VIDEO_BUFFER_FLAG_TFF = (GST_BUFFER_FLAG_LAST << 1), |
| GST_VIDEO_BUFFER_FLAG_RFF = (GST_BUFFER_FLAG_LAST << 2), |
| GST_VIDEO_BUFFER_FLAG_ONEFIELD = (GST_BUFFER_FLAG_LAST << 3), |
| |
| GST_VIDEO_BUFFER_FLAG_LAST = (GST_BUFFER_FLAG_LAST << 8) |
| } GstVideoBufferFlags; |
| </pre> |
| <p> |
| Additional video buffer flags. |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><a name="GST-VIDEO-BUFFER-FLAG-INTERLACED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_BUFFER_FLAG_INTERLACED</code></span></p></td> |
| <td>If the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> is interlaced. In mixed |
| interlace-mode, this flags specifies if the frame is |
| interlaced or progressive. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-BUFFER-FLAG-TFF:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_BUFFER_FLAG_TFF</code></span></p></td> |
| <td>If the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> is interlaced, then the first field |
| in the video frame is the top field. If unset, the |
| bottom field is first. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-BUFFER-FLAG-RFF:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_BUFFER_FLAG_RFF</code></span></p></td> |
| <td>If the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> is interlaced, then the first field |
| (as defined by the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GST-VIDEO-BUFFER-TFF:CAPS"><code class="literal">GST_VIDEO_BUFFER_TFF</code></a> flag setting) |
| is repeated. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-BUFFER-FLAG-ONEFIELD:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_BUFFER_FLAG_ONEFIELD</code></span></p></td> |
| <td>If the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> is interlaced, then only the |
| first field (as defined by the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GST-VIDEO-BUFFER-TFF:CAPS"><code class="literal">GST_VIDEO_BUFFER_TFF</code></a> |
| flag setting) is to be displayed. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="GST-VIDEO-BUFFER-FLAG-LAST:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_BUFFER_FLAG_LAST</code></span></p></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr> |
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