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<a name="gst-plugins-bad-libs-mpeg4parser"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gst-plugins-bad-libs-mpeg4parser.top_of_page"></a>mpeg4parser</span></h2>
<p>mpeg4parser — Convenience library for parsing mpeg4 part 2 video
bitstream.</p>
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<div class="refsynopsisdiv">
<a name="gst-plugins-bad-libs-mpeg4parser.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;gst/codecparsers/gstmpeg4parser.h&gt;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4StartCode" title="enum GstMpeg4StartCode">GstMpeg4StartCode</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObjectType" title="enum GstMpeg4VisualObjectType">GstMpeg4VisualObjectType</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4AspectRatioInfo" title="enum GstMpeg4AspectRatioInfo">GstMpeg4AspectRatioInfo</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult">GstMpeg4ParseResult</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectCodingType" title="enum GstMpeg4VideoObjectCodingType">GstMpeg4VideoObjectCodingType</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ChromaFormat" title="enum GstMpeg4ChromaFormat">GstMpeg4ChromaFormat</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayerShape" title="enum GstMpeg4VideoObjectLayerShape">GstMpeg4VideoObjectLayerShape</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteEnable" title="enum GstMpeg4SpriteEnable">GstMpeg4SpriteEnable</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Profile" title="enum GstMpeg4Profile">GstMpeg4Profile</a>;
enum <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Level" title="enum GstMpeg4Level">GstMpeg4Level</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObjectSequence" title="struct GstMpeg4VisualObjectSequence">GstMpeg4VisualObjectSequence</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject">GstMpeg4VisualObject</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoSignalType" title="struct GstMpeg4VideoSignalType">GstMpeg4VideoSignalType</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoPlaneShortHdr" title="struct GstMpeg4VideoPlaneShortHdr">GstMpeg4VideoPlaneShortHdr</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer">GstMpeg4VideoObjectLayer</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory">GstMpeg4SpriteTrajectory</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4GroupOfVOP" title="struct GstMpeg4GroupOfVOP">GstMpeg4GroupOfVOP</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane">GstMpeg4VideoObjectPlane</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Packet" title="struct GstMpeg4Packet">GstMpeg4Packet</a>;
struct <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoPacketHdr" title="struct GstMpeg4VideoPacketHdr">GstMpeg4VideoPacketHdr</a>;
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse" title="gst_mpeg4_parse ()">gst_mpeg4_parse</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Packet" title="struct GstMpeg4Packet"><span class="type">GstMpeg4Packet</span></a> *packet</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> skip_user_data</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</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> offset</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-video-object-plane" title="gst_mpeg4_parse_video_object_plane ()">gst_mpeg4_parse_video_object_plane</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> *sprite_trajectory</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-group-of-vop" title="gst_mpeg4_parse_group_of_vop ()">gst_mpeg4_parse_group_of_vop</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4GroupOfVOP" title="struct GstMpeg4GroupOfVOP"><span class="type">GstMpeg4GroupOfVOP</span></a> *gov</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-video-object-layer" title="gst_mpeg4_parse_video_object_layer ()">gst_mpeg4_parse_video_object_layer</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> *vo</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-visual-object" title="gst_mpeg4_parse_visual_object ()">gst_mpeg4_parse_visual_object</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> *vo</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoSignalType" title="struct GstMpeg4VideoSignalType"><span class="type">GstMpeg4VideoSignalType</span></a> *signal_type</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-visual-object-sequence" title="gst_mpeg4_parse_visual_object_sequence ()">gst_mpeg4_parse_visual_object_sequence</a>
(<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObjectSequence" title="struct GstMpeg4VisualObjectSequence"><span class="type">GstMpeg4VisualObjectSequence</span></a> *vos</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
<a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#gst-mpeg4-parse-video-packet-header" title="gst_mpeg4_parse_video_packet_header ()">gst_mpeg4_parse_video_packet_header</a> (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoPacketHdr" title="struct GstMpeg4VideoPacketHdr"><span class="type">GstMpeg4VideoPacketHdr</span></a> *videopackethdr</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> *sprite_trajectory</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-mpeg4parser.description"></a><h2>Description</h2>
<p>
For more details about the structures, you can refer to the
specifications: ISO-IEC-14496-2_2004_MPEG4_VISUAL.pdf
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-mpeg4parser.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstMpeg4StartCode"></a><h3>enum GstMpeg4StartCode</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_VIDEO_OBJ_FIRST = 0x00,
GST_MPEG4_VIDEO_OBJ_LAST = 0x1f,
GST_MPEG4_VIDEO_LAYER_FIRST = 0x20,
GST_MPEG4_VIDEO_LAYER_LAST = 0x2f,
GST_MPEG4_VISUAL_OBJ_SEQ_START = 0xb0,
GST_MPEG4_VISUAL_OBJ_SEQ_END = 0xb1,
GST_MPEG4_USER_DATA = 0xb2,
GST_MPEG4_GROUP_OF_VOP = 0xb3,
GST_MPEG4_VIDEO_SESSION_ERR = 0xb4,
GST_MPEG4_VISUAL_OBJ = 0xb5,
GST_MPEG4_VIDEO_OBJ_PLANE = 0xb6,
GST_MPEG4_FBA = 0xba,
GST_MPEG4_FBA_PLAN = 0xbb,
GST_MPEG4_MESH = 0xbc,
GST_MPEG4_MESH_PLAN = 0xbd,
GST_MPEG4_STILL_TEXTURE_OBJ = 0xbe,
GST_MPEG4_TEXTURE_SPATIAL = 0xbf,
GST_MPEG4_TEXTURE_SNR_LAYER = 0xc0,
GST_MPEG4_TEXTURE_TILE = 0xc1,
GST_MPEG4_SHAPE_LAYER = 0xc2,
GST_MPEG4_STUFFING = 0xc3,
GST_MPEG4_SYSTEM_FIRST = 0xc6,
GST_MPEG4_SYSTEM_LAST = 0xff,
GST_MPEG4_RESYNC = 0xfff
} GstMpeg4StartCode;
</pre>
<p>
Defines the different startcodes present in the bitstream as
defined in: Table 6-3 — Start code values
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VisualObjectType"></a><h3>enum GstMpeg4VisualObjectType</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_VIDEO_ID = 0x01,
GST_MPEG4_STILL_TEXTURE_ID = 0x02,
GST_MPEG4_STILL_MESH_ID = 0x03,
GST_MPEG4_STILL_FBA_ID = 0x04,
GST_MPEG4_STILL_3D_MESH_ID = 0x05,
/*... reserved */
} GstMpeg4VisualObjectType;
</pre>
<p>
Defines the different visual object types as
defined in: Table 6-5 -- Meaning of visual object type
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4AspectRatioInfo"></a><h3>enum GstMpeg4AspectRatioInfo</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_SQUARE = 0x01,
GST_MPEG4_625_TYPE_4_3 = 0x02,
GST_MPEG4_525_TYPE_4_3 = 0x03,
GST_MPEG4_625_TYPE_16_9 = 0x04,
GST_MPEG4_525_TYPE_16_9 = 0x05,
GST_MPEG4_EXTENDED_PAR = 0x0f,
} GstMpeg4AspectRatioInfo;
</pre>
<p>
Defines the different pixel aspect ratios as
defined in: Table 6-12 -- Meaning of pixel aspect ratio
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GST-MPEG4-SQUARE:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_SQUARE</code></span></p></td>
<td>1:1 square
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-625-TYPE-4-3:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_625_TYPE_4_3</code></span></p></td>
<td>12:11 (625-type for 4:3 picture)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-525-TYPE-4-3:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_525_TYPE_4_3</code></span></p></td>
<td>10:11 (525-type for 4:3 picture)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-625-TYPE-16-9:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_625_TYPE_16_9</code></span></p></td>
<td>16:11 (625-type stretched for 16:9 picture)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-525-TYPE-16-9:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_525_TYPE_16_9</code></span></p></td>
<td>40:33 (525-type stretched for 16:9 picture)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-EXTENDED-PAR:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_EXTENDED_PAR</code></span></p></td>
<td>Extended par
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4ParseResult"></a><h3>enum GstMpeg4ParseResult</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_PARSER_OK,
GST_MPEG4_PARSER_BROKEN_DATA,
GST_MPEG4_PARSER_NO_PACKET,
GST_MPEG4_PARSER_NO_PACKET_END,
GST_MPEG4_PARSER_ERROR,
} GstMpeg4ParseResult;
</pre>
<p>
Result type of any parsing function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GST-MPEG4-PARSER-OK:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_PARSER_OK</code></span></p></td>
<td>The parsing went well
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-PARSER-BROKEN-DATA:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_PARSER_BROKEN_DATA</code></span></p></td>
<td>The bitstream was broken
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-PARSER-NO-PACKET:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_PARSER_NO_PACKET</code></span></p></td>
<td>There was no packet in the buffer
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-PARSER-NO-PACKET-END:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_PARSER_NO_PACKET_END</code></span></p></td>
<td>There was no packet end in the buffer
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-PARSER-ERROR:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_PARSER_ERROR</code></span></p></td>
<td></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoObjectCodingType"></a><h3>enum GstMpeg4VideoObjectCodingType</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_I_VOP = 0x0,
GST_MPEG4_P_VOP = 0x1,
GST_MPEG4_B_VOP = 0x2,
GST_MPEG4_S_VOP = 0x3
} GstMpeg4VideoObjectCodingType;
</pre>
<p>
The vop coding types as defined in:
Table 6-20 -- Meaning of vop_coding_type
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GST-MPEG4-I-VOP:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_I_VOP</code></span></p></td>
<td>intra-coded (I)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-P-VOP:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_P_VOP</code></span></p></td>
<td>predictive-coded (P)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-B-VOP:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_B_VOP</code></span></p></td>
<td>bidirectionally-predictive-coded (B)
</td>
</tr>
<tr>
<td><p><a name="GST-MPEG4-S-VOP:CAPS"></a><span class="term"><code class="literal">GST_MPEG4_S_VOP</code></span></p></td>
<td>sprite (S)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4ChromaFormat"></a><h3>enum GstMpeg4ChromaFormat</h3>
<pre class="programlisting">typedef enum {
/* Other value are reserved */
GST_MPEG4_CHROMA_4_2_0 = 0x01
} GstMpeg4ChromaFormat;
</pre>
<p>
The chroma format in use as
defined in: Table 6-13 -- Meaning of chroma_format
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoObjectLayerShape"></a><h3>enum GstMpeg4VideoObjectLayerShape</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_RECTANGULAR,
GST_MPEG4_BINARY,
GST_MPEG4_BINARY_ONLY,
GST_MPEG4_GRAYSCALE
} GstMpeg4VideoObjectLayerShape;
</pre>
<p>
The different video object layer shapes as defined in:
Table 6-16 — Video Object Layer shape type
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4SpriteEnable"></a><h3>enum GstMpeg4SpriteEnable</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_SPRITE_UNUSED,
GST_MPEG4_SPRITE_STATIC,
GST_MPEG4_SPRITE_GMG
} GstMpeg4SpriteEnable;
</pre>
<p>
Indicates the usage of static sprite coding
or global motion compensation (GMC) as defined in:
Table V2 - 2 -- Meaning of sprite_enable codewords
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4Profile"></a><h3>enum GstMpeg4Profile</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_PROFILE_CORE,
GST_MPEG4_PROFILE_MAIN,
GST_MPEG4_PROFILE_N_BIT,
GST_MPEG4_PROFILE_SIMPLE,
GST_MPEG4_PROFILE_HYBRID,
GST_MPEG4_PROFILE_RESERVED,
GST_MPEG4_PROFILE_SIMPLE_FBA,
GST_MPEG4_PROFILE_CORE_STUDIO,
GST_MPEG4_PROFILE_SIMPLE_STUDIO,
GST_MPEG4_PROFILE_CORE_SCALABLE,
GST_MPEG4_PROFILE_ADVANCED_CORE,
GST_MPEG4_PROFILE_ADVANCED_SIMPLE,
GST_MPEG4_PROFILE_SIMPLE_SCALABLE,
GST_MPEG4_PROFILE_SCALABLE_TEXTURE,
GST_MPEG4_PROFILE_SIMPLE_FACE_ANIMATION,
GST_MPEG4_PROFILE_BASIC_ANIMATED_TEXTURE,
GST_MPEG4_PROFILE_ADVANCED_REALTIME_SIMPLE,
GST_MPEG4_PROFILE_ADVANCED_SCALABLE_TEXTURE,
GST_MPEG4_PROFILE_FINE_GRANULARITY_SCALABLE,
GST_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY
} GstMpeg4Profile;
</pre>
<p>
Different defined profiles as defined in:
9- Profiles and levels
</p>
<p>
It is computed using:
Table G.1 — FLC table for profile_and_level_indication
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4Level"></a><h3>enum GstMpeg4Level</h3>
<pre class="programlisting">typedef enum {
GST_MPEG4_LEVEL0,
GST_MPEG4_LEVEL1,
GST_MPEG4_LEVEL2,
GST_MPEG4_LEVEL3,
GST_MPEG4_LEVEL3b,
GST_MPEG4_LEVEL4,
GST_MPEG4_LEVEL5,
GST_MPEG4_LEVEL_RESERVED
} GstMpeg4Level;
</pre>
<p>
Different levels as defined in:
9- Profiles and levels
</p>
<p>
It is computed using:
Table G.1 — FLC table for profile_and_level_indication
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VisualObjectSequence"></a><h3>struct GstMpeg4VisualObjectSequence</h3>
<pre class="programlisting">struct GstMpeg4VisualObjectSequence {
guint8 profile_and_level_indication;
/* Computed according to:
* Table G.1 — FLC table for profile_and_level_indication */
GstMpeg4Level level;
GstMpeg4Profile profile;
};
</pre>
<p>
The visual object sequence structure as defined in:
6.2.2 Visual Object Sequence and Visual Object
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VisualObject"></a><h3>struct GstMpeg4VisualObject</h3>
<pre class="programlisting">struct GstMpeg4VisualObject {
guint8 is_identifier;
/* If is_identifier */
guint8 verid;
guint8 priority;
GstMpeg4VisualObjectType type;
};
</pre>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoSignalType"></a><h3>struct GstMpeg4VideoSignalType</h3>
<pre class="programlisting">struct GstMpeg4VideoSignalType {
guint8 type;
guint8 format;
guint8 range;
guint8 color_description;
guint8 color_primaries;
guint8 transfer_characteristics;
guint8 matrix_coefficients;
};
</pre>
<p>
The video signal type structure as defined in:
6.2.2 Visual Object Sequence and Visual Object.
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoPlaneShortHdr"></a><h3>struct GstMpeg4VideoPlaneShortHdr</h3>
<pre class="programlisting">struct GstMpeg4VideoPlaneShortHdr {
guint8 temporal_reference;
guint8 split_screen_indicator;
guint8 document_camera_indicator;
guint8 full_picture_freeze_release;
guint8 source_format;
guint8 picture_coding_type;
guint8 vop_quant;
guint8 pei;
guint8 psupp;
/* Gob layer specific fields */
guint8 gob_header_empty;
guint8 gob_number;
guint8 gob_frame_id;
guint8 quant_scale;
/* Computed
* If all the values are set to 0, then it is reserved
* Table 6-25 -- Parameters Defined by source_format Field
*/
guint16 vop_width;
guint16 vop_height;
guint16 num_macroblocks_in_gob;
guint8 num_gobs_in_vop;
/* The size in bits */
guint size;
};
</pre>
<p>
The video plane short header structure as defined in:
6.2.5.2 Video Plane with Short Header
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoObjectLayer"></a><h3>struct GstMpeg4VideoObjectLayer</h3>
<pre class="programlisting">struct GstMpeg4VideoObjectLayer {
guint8 random_accessible_vol;
guint8 video_object_type_indication;
guint8 is_object_layer_identifier;
/* if is_object_layer_identifier */
guint8 verid;
guint8 priority;
GstMpeg4AspectRatioInfo aspect_ratio_info;
guint8 par_width;
guint8 par_height;
guint8 control_parameters;
/* if control_parameters */
GstMpeg4ChromaFormat chroma_format;
guint8 low_delay;
guint8 vbv_parameters;
/* if vbv_parameters */
guint16 first_half_bitrate;
guint16 latter_half_bitrate;
guint16 first_half_vbv_buffer_size;
guint16 latter_half_vbv_buffer_size;
guint16 first_half_vbv_occupancy;
guint16 latter_half_vbv_occupancy;
/* Computed values */
guint32 bit_rate;
guint32 vbv_buffer_size;
GstMpeg4VideoObjectLayerShape shape;
/* if shape == GST_MPEG4_GRAYSCALE &amp;&amp; verid =! 1 */
guint8 shape_extension;
guint16 vop_time_increment_resolution;
guint8 vop_time_increment_bits;
guint8 fixed_vop_rate;
/* if fixed_vop_rate */
guint16 fixed_vop_time_increment;
guint16 width;
guint16 height;
guint8 interlaced;
guint8 obmc_disable;
GstMpeg4SpriteEnable sprite_enable;
/* if vol-&gt;sprite_enable == SPRITE_GMG or SPRITE_STATIC*/
/* if vol-&gt;sprite_enable != GST_MPEG4_SPRITE_GMG */
guint16 sprite_width;
guint16 sprite_height;
guint16 sprite_left_coordinate;
guint16 sprite_top_coordinate;
guint8 no_of_sprite_warping_points;
guint8 sprite_warping_accuracy;
guint8 sprite_brightness_change;
/* if vol-&gt;sprite_enable != GST_MPEG4_SPRITE_GMG */
guint8 low_latency_sprite_enable;
/* if shape != GST_MPEG4_RECTANGULAR */
guint8 sadct_disable;
guint8 not_8_bit;
/* if no_8_bit */
guint8 quant_precision;
guint8 bits_per_pixel;
/* if shape == GRAYSCALE */
guint8 no_gray_quant_update;
guint8 composition_method;
guint8 linear_composition;
guint8 quant_type;
/* if quant_type */
guint8 load_intra_quant_mat;
guint8 intra_quant_mat[64];
guint8 load_non_intra_quant_mat;
guint8 non_intra_quant_mat[64];
guint8 quarter_sample;
guint8 complexity_estimation_disable;
guint8 resync_marker_disable;
guint8 data_partitioned;
guint8 reversible_vlc;
guint8 newpred_enable;
guint8 reduced_resolution_vop_enable;
guint8 scalability;
guint8 enhancement_type;
GstMpeg4VideoPlaneShortHdr short_hdr;
};
</pre>
<p>
The video object layer structure as defined in:
6.2.3 Video Object Layer
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4SpriteTrajectory"></a><h3>struct GstMpeg4SpriteTrajectory</h3>
<pre class="programlisting">struct GstMpeg4SpriteTrajectory {
guint16 vop_ref_points[63]; /* Defined as "du" in 6.2.5.4 */
guint16 sprite_ref_points[63]; /* Defined as "dv" in 6.2.5.4 */
};
</pre>
<p>
The sprite trajectory structure as defined in:
7.8.4 Sprite reference point decoding and
6.2.5.4 Sprite coding
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4GroupOfVOP"></a><h3>struct GstMpeg4GroupOfVOP</h3>
<pre class="programlisting">struct GstMpeg4GroupOfVOP {
guint8 hours;
guint8 minutes;
guint8 seconds;
guint8 closed;
guint8 broken_link;
};
</pre>
<p>
The group of video object plane structure as defined in:
6.2.4 Group of Video Object Plane
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoObjectPlane"></a><h3>struct GstMpeg4VideoObjectPlane</h3>
<pre class="programlisting">struct GstMpeg4VideoObjectPlane {
GstMpeg4VideoObjectCodingType coding_type;
guint8 modulo_time_base;
guint16 time_increment;
guint8 coded;
/* if newpred_enable */
guint16 id;
guint8 id_for_prediction_indication;
guint16 id_for_prediction;
guint16 width;
guint16 height;
guint16 horizontal_mc_spatial_ref;
guint16 vertical_mc_spatial_ref;
guint8 rounding_type;
/*if vol-&gt;shape != GST_MPEG4_RECTANGULAR */
guint8 background_composition;
guint8 change_conv_ratio_disable;
guint8 constant_alpha;
guint8 constant_alpha_value;
guint8 reduced_resolution;
guint8 intra_dc_vlc_thr;
guint8 top_field_first;
guint8 alternate_vertical_scan_flag;
guint16 quant;
guint8 fcode_forward;
guint8 fcode_backward;
guint8 shape_coding_type;
guint8 load_backward_shape;
guint8 ref_select_code;
/* Computed macroblock informations */
guint16 mb_height;
guint16 mb_width;
guint mb_num;
/* The size of the header */
guint size;
};
</pre>
<p>
The Video object plane structure as defined in:
6.2.5 Video Object Plane and Video Plane with Short Header
</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4Packet"></a><h3>struct GstMpeg4Packet</h3>
<pre class="programlisting">struct GstMpeg4Packet {
const guint8 *data;
guint offset;
gsize size;
guint marker_size;
GstMpeg4StartCode type;
};
</pre>
<p>
A structure that contains the type of a packet, its offset and its size
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">const <span class="type">guint8</span> *<em class="structfield"><code><a name="GstMpeg4Packet.data"></a>data</code></em>;</span></p></td>
<td>the data containing packet starting at <em class="parameter"><code>offset</code></em>
</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="GstMpeg4Packet.offset"></a>offset</code></em>;</span></p></td>
<td>offset of the start of the packet (without the 3 bytes startcode), but
including the <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4StartCode" title="enum GstMpeg4StartCode"><span class="type">GstMpeg4StartCode</span></a> byte.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">gsize</span> <em class="structfield"><code><a name="GstMpeg4Packet.size"></a>size</code></em>;</span></p></td>
<td>The size in bytes of the packet or <code class="literal">G_MAXUINT</code> if the end wasn't 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="GstMpeg4Packet.marker-size"></a>marker_size</code></em>;</span></p></td>
<td>The size in bit of the resync marker.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4StartCode" title="enum GstMpeg4StartCode"><span class="type">GstMpeg4StartCode</span></a> <em class="structfield"><code><a name="GstMpeg4Packet.type"></a>type</code></em>;</span></p></td>
<td>the type of the packet that start at <em class="parameter"><code>offset</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstMpeg4VideoPacketHdr"></a><h3>struct GstMpeg4VideoPacketHdr</h3>
<pre class="programlisting">struct GstMpeg4VideoPacketHdr {
guint8 header_extension_code;
guint16 macroblock_number;
guint16 quant_scale;
guint size;
};
</pre>
<p>
The video packet header structure as defined in:
6.2.5.2 Video Plane with Short Header
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><span class="type">guint8</span> <em class="structfield"><code><a name="GstMpeg4VideoPacketHdr.header-extension-code"></a>header_extension_code</code></em>;</span></p></td>
<td></td>
</tr>
<tr>
<td><p><span class="term"><span class="type">guint16</span> <em class="structfield"><code><a name="GstMpeg4VideoPacketHdr.macroblock-number"></a>macroblock_number</code></em>;</span></p></td>
<td></td>
</tr>
<tr>
<td><p><span class="term"><span class="type">guint16</span> <em class="structfield"><code><a name="GstMpeg4VideoPacketHdr.quant-scale"></a>quant_scale</code></em>;</span></p></td>
<td></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="GstMpeg4VideoPacketHdr.size"></a>size</code></em>;</span></p></td>
<td>Size of the header in bit.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse"></a><h3>gst_mpeg4_parse ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Packet" title="struct GstMpeg4Packet"><span class="type">GstMpeg4Packet</span></a> *packet</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> skip_user_data</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</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> offset</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> and fills <em class="parameter"><code>packet</code></em> with the information of the next packet
found.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>packet</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4Packet" title="struct GstMpeg4Packet"><span class="type">GstMpeg4Packet</span></a> to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>skip_user_data</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 skip user data packet <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwize</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vop</code></em> :</span></p></td>
<td>The last parsed <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</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 you do
not need to detect the resync codes.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>offset from which to start the parsing</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-video-object-plane"></a><h3>gst_mpeg4_parse_video_object_plane ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_video_object_plane (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> *sprite_trajectory</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> containing the video object plane packet, and fills the <em class="parameter"><code>vol</code></em>
structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>vop</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> currently being parsed</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sprite_trajectory</code></em> :</span></p></td>
<td>A <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> to fill or <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"><em class="parameter"><code>vol</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-group-of-vop"></a><h3>gst_mpeg4_parse_group_of_vop ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_group_of_vop (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4GroupOfVOP" title="struct GstMpeg4GroupOfVOP"><span class="type">GstMpeg4GroupOfVOP</span></a> *gov</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> containing the group of video object plane packet, and fills
the <em class="parameter"><code>gov</code></em> structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gov</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4GroupOfVOP" title="struct GstMpeg4GroupOfVOP"><span class="type">GstMpeg4GroupOfVOP</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-video-object-layer"></a><h3>gst_mpeg4_parse_video_object_layer ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_video_object_layer (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> *vo</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> containing the video object layer packet, and fills
the <em class="parameter"><code>vol</code></em> structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>vol</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vo</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> currently being parsed or <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"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-visual-object"></a><h3>gst_mpeg4_parse_visual_object ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_visual_object (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> *vo</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoSignalType" title="struct GstMpeg4VideoSignalType"><span class="type">GstMpeg4VideoSignalType</span></a> *signal_type</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> containing the visual object packet, and fills
the <em class="parameter"><code>vo</code></em> structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>vo</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObject" title="struct GstMpeg4VisualObject"><span class="type">GstMpeg4VisualObject</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_type</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoSignalType" title="struct GstMpeg4VideoSignalType"><span class="type">GstMpeg4VideoSignalType</span></a> to fill or <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"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse, should contain the vo_start_code
but not the start code prefix</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-visual-object-sequence"></a><h3>gst_mpeg4_parse_visual_object_sequence ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_visual_object_sequence
(<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObjectSequence" title="struct GstMpeg4VisualObjectSequence"><span class="type">GstMpeg4VisualObjectSequence</span></a> *vos</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parses <em class="parameter"><code>data</code></em> containing the visual object sequence packet, and fills
the <em class="parameter"><code>vos</code></em> structure.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>vos</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VisualObjectSequence" title="struct GstMpeg4VisualObjectSequence"><span class="type">GstMpeg4VisualObjectSequence</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse, should contain the visual_object_sequence_start_code
but not the start code prefix</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the <em class="parameter"><code>data</code></em> to parse</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-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="type">GstMpeg4ParseResult</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-mpeg4-parse-video-packet-header"></a><h3>gst_mpeg4_parse_video_packet_header ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4ParseResult" title="enum GstMpeg4ParseResult"><span class="returnvalue">GstMpeg4ParseResult</span></a> gst_mpeg4_parse_video_packet_header (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoPacketHdr" title="struct GstMpeg4VideoPacketHdr"><span class="type">GstMpeg4VideoPacketHdr</span></a> *videopackethdr</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a> *vol</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a> *vop</code></em>,
<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> *sprite_trajectory</code></em>,
<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>,
<em class="parameter"><code><span class="type">gsize</span> size</code></em>);</pre>
<p>
Parsers <em class="parameter"><code>data</code></em> containing the video packet header
and fills the <em class="parameter"><code>videopackethdr</code></em> structure
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>videopackethdr</code></em> :</span></p></td>
<td>The <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoPacketHdr" title="struct GstMpeg4VideoPacketHdr"><span class="type">GstMpeg4VideoPacketHdr</span></a> structure to fill</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vol</code></em> :</span></p></td>
<td>The last parsed <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectLayer" title="struct GstMpeg4VideoObjectLayer"><span class="type">GstMpeg4VideoObjectLayer</span></a>, will be updated
with the informations found during the parsing</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>vop</code></em> :</span></p></td>
<td>The last parsed <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4VideoObjectPlane" title="struct GstMpeg4VideoObjectPlane"><span class="type">GstMpeg4VideoObjectPlane</span></a>, will be updated
with the informations found during the parsing</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sprite_trajectory</code></em> :</span></p></td>
<td>A <a class="link" href="gst-plugins-bad-libs-mpeg4parser.html#GstMpeg4SpriteTrajectory" title="struct GstMpeg4SpriteTrajectory"><span class="type">GstMpeg4SpriteTrajectory</span></a> to fill or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
with the informations found during the parsing</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>The data to parse, should be set after the resync marker.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td>The size of the data to parse</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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