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| <a name="gst-plugins-bad-libs-gstmpegvideometa"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-bad-libs-gstmpegvideometa.top_of_page"></a>gstmpegvideometa</span></h2> |
| <p>gstmpegvideometa</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GST-MPEG-VIDEO-META-API-TYPE:CAPS" title="GST_MPEG_VIDEO_META_API_TYPE">GST_MPEG_VIDEO_META_API_TYPE</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GST-MPEG-VIDEO-META-INFO:CAPS" title="GST_MPEG_VIDEO_META_INFO">GST_MPEG_VIDEO_META_INFO</a></td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta"><span class="returnvalue">GstMpegVideoMeta</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#gst-buffer-add-mpeg-video-meta" title="gst_buffer_add_mpeg_video_meta ()">gst_buffer_add_mpeg_video_meta</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#gst-buffer-get-mpeg-video-meta" title="gst_buffer_get_mpeg_video_meta()">gst_buffer_get_mpeg_video_meta</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type">const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#gst-mpeg-video-meta-get-info" title="gst_mpeg_video_meta_get_info ()">gst_mpeg_video_meta_get_info</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.other"></a><h2>Types and Values</h2> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="name"> |
| <col class="description"> |
| </colgroup> |
| <tbody><tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta">GstMpegVideoMeta</a></td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/codecparsers/gstmpegvideometa.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.description"></a><h2>Description</h2> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="GST-MPEG-VIDEO-META-API-TYPE:CAPS"></a><h3>GST_MPEG_VIDEO_META_API_TYPE</h3> |
| <pre class="programlisting">#define GST_MPEG_VIDEO_META_API_TYPE (gst_mpeg_video_meta_api_get_type()) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-MPEG-VIDEO-META-INFO:CAPS"></a><h3>GST_MPEG_VIDEO_META_INFO</h3> |
| <pre class="programlisting">#define GST_MPEG_VIDEO_META_INFO (gst_mpeg_video_meta_get_info()) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-buffer-add-mpeg-video-meta"></a><h3>gst_buffer_add_mpeg_video_meta ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta"><span class="returnvalue">GstMpegVideoMeta</span></a> * |
| gst_buffer_add_mpeg_video_meta (<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>const <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceHdr" title="struct GstMpegVideoSequenceHdr"><span class="type">GstMpegVideoSequenceHdr</span></a> *seq_hdr</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceExt" title="struct GstMpegVideoSequenceExt"><span class="type">GstMpegVideoSequenceExt</span></a> *seq_ext</code></em>, |
| <em class="parameter"><code>const <span class="type">GstMpegVideoSequenceDisplayExt</span> *disp_ext</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureHdr" title="struct GstMpegVideoPictureHdr"><span class="type">GstMpegVideoPictureHdr</span></a> *pic_hdr</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureExt" title="struct GstMpegVideoPictureExt"><span class="type">GstMpegVideoPictureExt</span></a> *pic_ext</code></em>, |
| <em class="parameter"><code>const <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoQuantMatrixExt" title="struct GstMpegVideoQuantMatrixExt"><span class="type">GstMpegVideoQuantMatrixExt</span></a> *quant_ext</code></em>);</pre> |
| <p>Creates and adds a <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta"><span class="type">GstMpegVideoMeta</span></a> to a <em class="parameter"><code>buffer</code></em> |
| .</p> |
| <p>Provided structures must either be <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> or GSlice-allocated.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.4.7.8.4.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.4.7.8.4.7"></a><h4>Returns</h4> |
| <p> a newly created <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta"><span class="type">GstMpegVideoMeta</span></a>. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-buffer-get-mpeg-video-meta"></a><h3>gst_buffer_get_mpeg_video_meta()</h3> |
| <pre class="programlisting">#define gst_buffer_get_mpeg_video_meta(b) ((GstMpegVideoMeta*)gst_buffer_get_meta((b),GST_MPEG_VIDEO_META_API_TYPE)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-mpeg-video-meta-get-info"></a><h3>gst_mpeg_video_meta_get_info ()</h3> |
| <pre class="programlisting">const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| gst_mpeg_video_meta_get_info (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstmpegvideometa.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstMpegVideoMeta"></a><h3>struct GstMpegVideoMeta</h3> |
| <pre class="programlisting">struct GstMpegVideoMeta { |
| GstMeta meta; |
| |
| GstMpegVideoSequenceHdr *sequencehdr; |
| GstMpegVideoSequenceExt *sequenceext; |
| GstMpegVideoSequenceDisplayExt *sequencedispext; |
| GstMpegVideoPictureHdr *pichdr; |
| GstMpegVideoPictureExt *picext; |
| GstMpegVideoQuantMatrixExt *quantext; |
| |
| guint num_slices; |
| gsize slice_offset; |
| }; |
| </pre> |
| <p>Extra buffer metadata describing the contents of a MPEG1/2 Video frame</p> |
| <p>Can be used by elements (mainly decoders) to avoid having to parse |
| Mpeg video 1/2 packets if it can be done upstream.</p> |
| <p>The various fields are only valid during the lifetime of the <a class="link" href="gst-plugins-bad-libs-gstmpegvideometa.html#GstMpegVideoMeta" title="struct GstMpegVideoMeta"><span class="type">GstMpegVideoMeta</span></a>. |
| If elements wish to use those for longer, they are required to make a copy.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.4.7.9.2.7"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstMpegVideoMeta.meta"></a>meta</code></em>;</p></td> |
| <td class="struct_member_description"><p>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceHdr" title="struct GstMpegVideoSequenceHdr"><span class="type">GstMpegVideoSequenceHdr</span></a> *<em class="structfield"><code><a name="GstMpegVideoMeta.sequencehdr"></a>sequencehdr</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceHdr" title="struct GstMpegVideoSequenceHdr"><span class="type">GstMpegVideoSequenceHdr</span></a> if present in the buffer</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceExt" title="struct GstMpegVideoSequenceExt"><span class="type">GstMpegVideoSequenceExt</span></a> *<em class="structfield"><code><a name="GstMpegVideoMeta.sequenceext"></a>sequenceext</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoSequenceExt" title="struct GstMpegVideoSequenceExt"><span class="type">GstMpegVideoSequenceExt</span></a> if present in the buffer</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><span class="type">GstMpegVideoSequenceDisplayExt</span> *<em class="structfield"><code><a name="GstMpegVideoMeta.sequencedispext"></a>sequencedispext</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <span class="type">GstMpegVideoSequenceDisplayExt</span> if present in the |
| buffer.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureHdr" title="struct GstMpegVideoPictureHdr"><span class="type">GstMpegVideoPictureHdr</span></a> *<em class="structfield"><code><a name="GstMpegVideoMeta.pichdr"></a>pichdr</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureHdr" title="struct GstMpegVideoPictureHdr"><span class="type">GstMpegVideoPictureHdr</span></a> if present in the buffer.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureExt" title="struct GstMpegVideoPictureExt"><span class="type">GstMpegVideoPictureExt</span></a> *<em class="structfield"><code><a name="GstMpegVideoMeta.picext"></a>picext</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoPictureExt" title="struct GstMpegVideoPictureExt"><span class="type">GstMpegVideoPictureExt</span></a> if present in the buffer.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoQuantMatrixExt" title="struct GstMpegVideoQuantMatrixExt"><span class="type">GstMpegVideoQuantMatrixExt</span></a> *<em class="structfield"><code><a name="GstMpegVideoMeta.quantext"></a>quantext</code></em>;</p></td> |
| <td class="struct_member_description"><p>the <a class="link" href="gst-plugins-bad-libs-mpegvideoparser.html#GstMpegVideoQuantMatrixExt" title="struct GstMpegVideoQuantMatrixExt"><span class="type">GstMpegVideoQuantMatrixExt</span></a> if present in the buffer</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><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="GstMpegVideoMeta.num-slices"></a>num_slices</code></em>;</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><span class="type">gsize</span> <em class="structfield"><code><a name="GstMpegVideoMeta.slice-offset"></a>slice_offset</code></em>;</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.2</p> |
| </div> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr> |
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