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| <div class="refentry"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-rawvideoparse.top_of_page"></a>rawvideoparse</span></h2> |
| <p>rawvideoparse</p> |
| </td> |
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| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.properties"></a><h2>Properties</h2> |
| <div class="informaltable"><table class="informaltable" border="0"> |
| <colgroup> |
| <col width="150px" class="properties_type"> |
| <col width="300px" class="properties_name"> |
| <col width="200px" class="properties_flags"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0gst-plugins-base-libs-gstvideo.html#GstVideoFormat"><span class="type">GstVideoFormat</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--format" title="The “format” property">format</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--frame-stride" title="The “frame-stride” property">frame-stride</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><span class="type">GstFraction</span></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--framerate" title="The “framerate” property">framerate</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--height" title="The “height” property">height</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--interlaced" title="The “interlaced” property">interlaced</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><span class="type">GstFraction</span></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--pixel-aspect-ratio" title="The “pixel-aspect-ratio” property">pixel-aspect-ratio</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"> |
| <a href="/usr/share/gtk-doc/html/gobjectgobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--plane-offsets" title="The “plane-offsets” property">plane-offsets</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"> |
| <a href="/usr/share/gtk-doc/html/gobjectgobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--plane-strides" title="The “plane-strides” property">plane-strides</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--top-field-first" title="The “top-field-first” property">top-field-first</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-rawvideoparse.html#GstRawVideoParse--width" title="The “width” property">width</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstRawVideoParse"></a><div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.other"></a><h2>Types and Values</h2> |
| <div class="informaltable"><table class="informaltable" 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-plugins-rawvideoparse.html#GstRawVideoParse-struct" title="struct GstRawVideoParse">GstRawVideoParse</a></td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstObject.html#GstObject-struct">GstObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstElement.html#GstElement-struct">GstElement</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0GstBaseParse.html#GstBaseParse-struct">GstBaseParse</a> |
| <span class="lineart">╰──</span> GstRawBaseParse |
| <span class="lineart">╰──</span> GstRawVideoParse |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.description"></a><h2>Description</h2> |
| <p>This element parses incoming data as raw video frames and timestamps these. |
| It also handles seek queries in said raw video data, and ensures that output |
| buffers contain exactly one frame, even if the input buffers contain only |
| partial frames or multiple frames. In the former case, it will continue to |
| receive buffers until there is enough input data to output one frame. In the |
| latter case, it will extract the first frame in the buffer and output it, then |
| the second one etc. until the remaining unparsed bytes aren't enough to form |
| a complete frame, and it will then continue as described in the earlier case.</p> |
| <p>The element implements the properties and sink caps configuration as specified |
| in the <span class="type">GstRawBaseParse</span> documentation. The properties configuration can be |
| modified by using the width, height, pixel-aspect-ratio, framerate, interlaced, |
| top-field-first, plane-strides, plane-offsets, and frame-stride properties.</p> |
| <p>If the properties configuration is used, plane strides and offsets will be |
| computed by using <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0gst-plugins-base-libs-gstvideo.html#gst-video-info-set-format"><code class="function">gst_video_info_set_format()</code></a>. This can be overridden by passing |
| GValueArrays to the plane-offsets and plane-strides properties. When this is |
| done, these custom offsets and strides are used later even if new width, |
| height, format etc. property values might be set. To switch back to computed |
| plane strides & offsets, pass NULL to one or both of the plane-offset and |
| plane-array properties.</p> |
| <p>The frame stride property is useful in cases where there is extra data between |
| the frames (for example, trailing metadata, or headers). The parser calculates |
| the actual frame size out of the other properties and compares it with this |
| frame-stride value. If the frame stride is larger than the calculated size, |
| then the extra bytes after the end of the frame are skipped. For example, with |
| 8-bit grayscale frames and a frame size of 100x10 pixels and a frame stride of |
| 1500 bytes, there are 500 excess bytes at the end of the actual frame which |
| are then skipped. It is safe to set the frame stride to a value that is smaller |
| than the actual frame size (in fact, its default value is 0); if it is smaller, |
| then no trailing data will be skipped.</p> |
| <p>If a framerate of 0 Hz is set (for example, 0/1), then output buffers will have |
| no duration set. The first output buffer will have a PTS 0, all subsequent ones |
| an unset PTS.</p> |
| <div class="refsect2"> |
| <a name="id-1.2.107.7.7"></a><h3>Example pipelines</h3> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1 |
| 2</pre></td> |
| <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> filesrc location<span class="gtkdoc opt">=</span>video<span class="gtkdoc opt">.</span>raw <span class="gtkdoc opt">!</span> rawvideoparse use<span class="gtkdoc opt">-</span>sink<span class="gtkdoc opt">-</span>caps<span class="gtkdoc opt">=</span><span class="keyword">false</span> \ |
| width<span class="gtkdoc opt">=</span><span class="number">500</span> height<span class="gtkdoc opt">=</span><span class="number">400</span> format<span class="gtkdoc opt">=</span>y444 <span class="gtkdoc opt">!</span> autovideosink</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| Read raw data from a local file and parse it as video data with 500x400 pixels |
| and Y444 video format. |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1 |
| 2 |
| 3</pre></td> |
| <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> filesrc location<span class="gtkdoc opt">=</span>video<span class="gtkdoc opt">.</span>raw <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> <span class="string">"video/x-raw, width=320, \</span> |
| <span class="string"> height=240, format=I420, framerate=1/1"</span> <span class="gtkdoc opt">!</span> rawvideoparse \ |
| use<span class="gtkdoc opt">-</span>sink<span class="gtkdoc opt">-</span>caps<span class="gtkdoc opt">=</span><span class="keyword">true</span> <span class="gtkdoc opt">!</span> autovideosink</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| Read raw data from a local file and parse it as video data with 320x240 pixels |
| and I420 video format. The queue element here is to force push based scheduling. |
| See the documentation in <span class="type">GstRawBaseParse</span> for the reason why. |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.107.7.8.1"></a><h3>Element Information</h3> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term">plugin</span></p></td> |
| <td> |
| <a class="link" href="gst-plugins-bad-plugins-plugin-rawparse.html#plugin-rawparse">rawparse</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Carlos Rafael Giani <dv@pseudoterminal.org></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Codec/Parser/Video</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="id-1.2.107.7.8.2"></a><h3>Element Pads</h3> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term">name</span></p></td> |
| <td>sink</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">direction</span></p></td> |
| <td>sink</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">presence</span></p></td> |
| <td>always</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/x-unaligned-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, IYU2, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE, P010_10LE, P010_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, IYU2, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE, P010_10LE, P010_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term">name</span></p></td> |
| <td>src</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">direction</span></p></td> |
| <td>source</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">presence</span></p></td> |
| <td>always</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/x-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, IYU2, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE, P010_10LE, P010_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse-struct"></a><h3>struct GstRawVideoParse</h3> |
| <pre class="programlisting">struct GstRawVideoParse;</pre> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-rawvideoparse.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--format"></a><h3>The <code class="literal">“format”</code> property</h3> |
| <pre class="programlisting"> “format” <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0gst-plugins-base-libs-gstvideo.html#GstVideoFormat"><span class="type">GstVideoFormat</span></a></pre> |
| <p>Format of frames in raw stream.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: GST_VIDEO_FORMAT_I420</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--frame-stride"></a><h3>The <code class="literal">“frame-stride”</code> property</h3> |
| <pre class="programlisting"> “frame-stride” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p>Stride between whole frames (0 = frames are tightly packed together).</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--framerate"></a><h3>The <code class="literal">“framerate”</code> property</h3> |
| <pre class="programlisting"> “framerate” <span class="type">GstFraction</span></pre> |
| <p>Rate of frames in raw stream.</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--height"></a><h3>The <code class="literal">“height”</code> property</h3> |
| <pre class="programlisting"> “height” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Height of frames in raw stream.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: >= 0</p> |
| <p>Default value: 240</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--interlaced"></a><h3>The <code class="literal">“interlaced”</code> property</h3> |
| <pre class="programlisting"> “interlaced” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>True if frames in raw stream are interlaced.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: FALSE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--pixel-aspect-ratio"></a><h3>The <code class="literal">“pixel-aspect-ratio”</code> property</h3> |
| <pre class="programlisting"> “pixel-aspect-ratio” <span class="type">GstFraction</span></pre> |
| <p>Pixel aspect ratio of frames in raw stream.</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--plane-offsets"></a><h3>The <code class="literal">“plane-offsets”</code> property</h3> |
| <pre class="programlisting"> “plane-offsets” <a href="/usr/share/gtk-doc/html/gobjectgobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</pre> |
| <p>Offsets of the planets in bytes.</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--plane-strides"></a><h3>The <code class="literal">“plane-strides”</code> property</h3> |
| <pre class="programlisting"> “plane-strides” <a href="/usr/share/gtk-doc/html/gobjectgobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</pre> |
| <p>Strides of the planets in bytes.</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--top-field-first"></a><h3>The <code class="literal">“top-field-first”</code> property</h3> |
| <pre class="programlisting"> “top-field-first” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>True if top field in frames in raw stream come first (not used if frames aren't interlaced).</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: FALSE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRawVideoParse--width"></a><h3>The <code class="literal">“width”</code> property</h3> |
| <pre class="programlisting"> “width” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Width of frames in raw stream.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: >= 0</p> |
| <p>Default value: 320</p> |
| </div> |
| </div> |
| </div> |
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