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  • Committer: Sebastian Dröge
  • Date: 2014-04-19 13:47:47 UTC
  • mfrom: (1.1.23)
  • Revision ID: git-v1:d06393f82dba0d5f13ec2e66275d75cf8178fe5c
Merge tag 'upstream/1.2.4'

Upstream version 1.2.4

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docs/libs/html/gst-plugins-base-libs-gstpbutilscodecutils.html
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>gstpbutilscodecutils</title>
 
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<title>GStreamer Base Plugins 1.0 Library Reference Manual: gstpbutilscodecutils</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
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<link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Library Reference Manual">
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<link rel="up" href="gstreamer-base-utils.html" title="Base Utils Library">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
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<th width="100%" align="center">GStreamer Base Plugins 1.0 Library Reference Manual</th>
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                  <a href="#gst-plugins-base-libs-gstpbutilscodecutils.description" class="shortcut">Description</a>
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<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="10"><tr valign="middle">
 
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<td width="100%" align="left" class="shortcuts">
 
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<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 
 
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                  <a href="#gst-plugins-base-libs-gstpbutilscodecutils.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
 
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</tr></table>
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<div class="refentry">
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<a name="gst-plugins-base-libs-gstpbutilscodecutils"></a><div class="titlepage"></div>
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<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstpbutilscodecutils.top_of_page"></a>gstpbutilscodecutils</span></h2>
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<p>gstpbutilscodecutils — Miscellaneous codec-specific utility functions</p>
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</td>
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<td valign="top" align="right"></td>
 
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<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsynopsisdiv">
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<a name="gst-plugins-base-libs-gstpbutilscodecutils.synopsis"></a><h2>Synopsis</h2>
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<pre class="synopsis">
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#include &lt;gst/pbutils/codec-utils.h&gt;
42
 
 
43
 
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>               <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-sample-rate-from-index" title="gst_codec_utils_aac_get_sample_rate_from_index ()">gst_codec_utils_aac_get_sample_rate_from_index</a>
44
 
                                                        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> sr_idx</code></em>);
45
 
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-index-from-sample-rate" title="gst_codec_utils_aac_get_index_from_sample_rate ()">gst_codec_utils_aac_get_index_from_sample_rate</a>
46
 
                                                        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> rate</code></em>);
47
 
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-gstpbutilscodecutils.html#gst-codec-utils-aac-get-profile" title="gst_codec_utils_aac_get_profile ()">gst_codec_utils_aac_get_profile</a>     (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
49
 
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-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()">gst_codec_utils_aac_get_level</a>       (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
51
 
<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-gstpbutilscodecutils.html#gst-codec-utils-aac-caps-set-level-and-profile" title="gst_codec_utils_aac_caps_set_level_and_profile ()">gst_codec_utils_aac_caps_set_level_and_profile</a>
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                                                        (<em class="parameter"><code><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>,
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                                                         <em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
54
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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56
 
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-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()">gst_codec_utils_h264_get_profile</a>    (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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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-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level" title="gst_codec_utils_h264_get_level ()">gst_codec_utils_h264_get_level</a>      (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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<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-gstpbutilscodecutils.html#gst-codec-utils-h264-caps-set-level-and-profile" title="gst_codec_utils_h264_caps_set_level_and_profile ()">gst_codec_utils_h264_caps_set_level_and_profile</a>
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                                                        (<em class="parameter"><code><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>,
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                                                         <em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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<span class="returnvalue">guint8</span>              <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level-idc" title="gst_codec_utils_h264_get_level_idc ()">gst_codec_utils_h264_get_level_idc</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> *level</code></em>);
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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-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-profile" title="gst_codec_utils_mpeg4video_get_profile ()">gst_codec_utils_mpeg4video_get_profile</a>
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                                                        (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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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-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-level" title="gst_codec_utils_mpeg4video_get_level ()">gst_codec_utils_mpeg4video_get_level</a>
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                                                        (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
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<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-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-caps-set-level-and-profile" title="gst_codec_utils_mpeg4video_caps_set_level_and_profile ()">gst_codec_utils_mpeg4video_caps_set_level_and_profile</a>
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                                                        (<em class="parameter"><code><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>,
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                                                         <em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);
 
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<div class="refsect1">
 
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<a name="gst-plugins-base-libs-gstpbutilscodecutils.functions"></a><h2>Functions</h2>
 
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<div class="informaltable"><table width="100%" border="0">
 
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<colgroup>
 
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<col width="150px" class="functions_return">
 
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<col class="functions_name">
 
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</colgroup>
 
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<tbody>
 
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<tr>
 
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<td class="function_type">
 
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-sample-rate-from-index" title="gst_codec_utils_aac_get_sample_rate_from_index ()">gst_codec_utils_aac_get_sample_rate_from_index</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">
 
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-index-from-sample-rate" title="gst_codec_utils_aac_get_index_from_sample_rate ()">gst_codec_utils_aac_get_index_from_sample_rate</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-profile" title="gst_codec_utils_aac_get_profile ()">gst_codec_utils_aac_get_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()">gst_codec_utils_aac_get_level</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">
 
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-caps-set-level-and-profile" title="gst_codec_utils_aac_caps_set_level_and_profile ()">gst_codec_utils_aac_caps_set_level_and_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()">gst_codec_utils_h264_get_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level" title="gst_codec_utils_h264_get_level ()">gst_codec_utils_h264_get_level</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">
 
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-caps-set-level-and-profile" title="gst_codec_utils_h264_caps_set_level_and_profile ()">gst_codec_utils_h264_caps_set_level_and_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">
 
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<span class="returnvalue">guint8</span>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level-idc" title="gst_codec_utils_h264_get_level_idc ()">gst_codec_utils_h264_get_level_idc</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-profile" title="gst_codec_utils_mpeg4video_get_profile ()">gst_codec_utils_mpeg4video_get_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-level" title="gst_codec_utils_mpeg4video_get_level ()">gst_codec_utils_mpeg4video_get_level</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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<tr>
 
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<td class="function_type">
 
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
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</td>
 
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<td class="function_name">
 
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<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-caps-set-level-and-profile" title="gst_codec_utils_mpeg4video_caps_set_level_and_profile ()">gst_codec_utils_mpeg4video_caps_set_level_and_profile</a> <span class="c_punctuation">()</span>
 
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</td>
 
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</tr>
 
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</tbody>
 
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</table></div>
 
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</div>
 
136
<div class="refsect1">
 
137
<a name="gst-plugins-base-libs-gstpbutilscodecutils.object-hierarchy"></a><h2>Object Hierarchy</h2>
 
138
<pre class="screen">
 
139
</pre>
 
140
</div>
 
141
<div class="refsect1">
 
142
<a name="gst-plugins-base-libs-gstpbutilscodecutils.includes"></a><h2>Includes</h2>
 
143
<pre class="synopsis">#include &lt;gst/pbutils/codec-utils.h&gt;
76
144
</pre>
77
145
</div>
78
146
<div class="refsect1">
79
147
<a name="gst-plugins-base-libs-gstpbutilscodecutils.description"></a><h2>Description</h2>
80
 
<p>
81
 
</p>
82
148
<div class="refsect2">
83
 
<a name="id-1.2.13.5.4.2.1"></a><p>
 
149
<a name="id-1.2.13.5.6.2"></a><p>
84
150
Provides codec-specific ulility functions such as functions to provide the
85
151
codec profile and level in human-readable string form from header data.
86
152
</p>
87
153
</div>
88
 
<p>
89
 
</p>
90
154
</div>
91
155
<div class="refsect1">
92
 
<a name="gst-plugins-base-libs-gstpbutilscodecutils.details"></a><h2>Details</h2>
93
 
<div class="refsect2">
94
 
<a name="gst-codec-utils-aac-get-sample-rate-from-index"></a><h3>gst_codec_utils_aac_get_sample_rate_from_index ()</h3>
95
 
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>               gst_codec_utils_aac_get_sample_rate_from_index
96
 
                                                        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> sr_idx</code></em>);</pre>
97
 
<p>
98
 
Translates the sample rate index found in AAC headers to the actual sample
99
 
rate.
100
 
</p>
101
 
<div class="variablelist"><table border="0" class="variablelist">
102
 
<colgroup>
103
 
<col align="left" valign="top">
104
 
<col>
105
 
</colgroup>
106
 
<tbody>
107
 
<tr>
108
 
<td><p><span class="term"><em class="parameter"><code>sr_idx</code></em> :</span></p></td>
109
 
<td>Sample rate index as from the AudioSpecificConfig (MPEG-4
110
 
container) or ADTS frame header</td>
111
 
</tr>
112
 
<tr>
113
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
114
 
<td>The sample rate if <em class="parameter"><code>sr_idx</code></em> is valid, 0 otherwise.</td>
115
 
</tr>
116
 
</tbody>
117
 
</table></div>
118
 
</div>
119
 
<hr>
120
 
<div class="refsect2">
121
 
<a name="gst-codec-utils-aac-get-index-from-sample-rate"></a><h3>gst_codec_utils_aac_get_index_from_sample_rate ()</h3>
122
 
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_codec_utils_aac_get_index_from_sample_rate
123
 
                                                        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> rate</code></em>);</pre>
124
 
<p>
125
 
Translates the sample rate to the index corresponding to it in AAC spec.
126
 
</p>
127
 
<div class="variablelist"><table border="0" class="variablelist">
128
 
<colgroup>
129
 
<col align="left" valign="top">
130
 
<col>
131
 
</colgroup>
132
 
<tbody>
133
 
<tr>
134
 
<td><p><span class="term"><em class="parameter"><code>rate</code></em> :</span></p></td>
135
 
<td>Sample rate</td>
136
 
</tr>
137
 
<tr>
138
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
139
 
<td>The AAC index for this sample rate, -1 if the rate is not a
140
 
valid AAC sample rate.</td>
141
 
</tr>
142
 
</tbody>
143
 
</table></div>
144
 
</div>
145
 
<hr>
146
 
<div class="refsect2">
147
 
<a name="gst-codec-utils-aac-get-profile"></a><h3>gst_codec_utils_aac_get_profile ()</h3>
148
 
<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_codec_utils_aac_get_profile     (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
149
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
150
 
<p>
151
 
Returns the profile of the given AAC stream as a string. The profile is
 
156
<a name="gst-plugins-base-libs-gstpbutilscodecutils.functions_details"></a><h2>Functions</h2>
 
157
<div class="refsect2">
 
158
<a name="gst-codec-utils-aac-get-sample-rate-from-index"></a><h3>gst_codec_utils_aac_get_sample_rate_from_index ()</h3>
 
159
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 
160
gst_codec_utils_aac_get_sample_rate_from_index
 
161
                               (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> sr_idx</code></em>);</pre>
 
162
<p>Translates the sample rate index found in AAC headers to the actual sample
 
163
rate.</p>
 
164
<div class="refsect3">
 
165
<a name="id-1.2.13.5.7.2.5"></a><h4>Parameters</h4>
 
166
<div class="informaltable"><table width="100%" border="0">
 
167
<colgroup>
 
168
<col width="150px" class="parameters_name">
 
169
<col class="parameters_description">
 
170
<col width="200px" class="parameters_annotations">
 
171
</colgroup>
 
172
<tbody><tr>
 
173
<td class="parameter_name"><p>sr_idx</p></td>
 
174
<td class="parameter_description"><p>Sample rate index as from the AudioSpecificConfig (MPEG-4
 
175
container) or ADTS frame header</p></td>
 
176
<td class="parameter_annotations"> </td>
 
177
</tr></tbody>
 
178
</table></div>
 
179
</div>
 
180
<div class="refsect3">
 
181
<a name="id-1.2.13.5.7.2.6"></a><h4>Returns</h4>
 
182
<p> The sample rate if <em class="parameter"><code>sr_idx</code></em>
 
183
is valid, 0 otherwise.</p>
 
184
<p></p>
 
185
</div>
 
186
</div>
 
187
<hr>
 
188
<div class="refsect2">
 
189
<a name="gst-codec-utils-aac-get-index-from-sample-rate"></a><h3>gst_codec_utils_aac_get_index_from_sample_rate ()</h3>
 
190
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 
191
gst_codec_utils_aac_get_index_from_sample_rate
 
192
                               (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> rate</code></em>);</pre>
 
193
<p>Translates the sample rate to the index corresponding to it in AAC spec.</p>
 
194
<div class="refsect3">
 
195
<a name="id-1.2.13.5.7.3.5"></a><h4>Parameters</h4>
 
196
<div class="informaltable"><table width="100%" border="0">
 
197
<colgroup>
 
198
<col width="150px" class="parameters_name">
 
199
<col class="parameters_description">
 
200
<col width="200px" class="parameters_annotations">
 
201
</colgroup>
 
202
<tbody><tr>
 
203
<td class="parameter_name"><p>rate</p></td>
 
204
<td class="parameter_description"><p>Sample rate</p></td>
 
205
<td class="parameter_annotations"> </td>
 
206
</tr></tbody>
 
207
</table></div>
 
208
</div>
 
209
<div class="refsect3">
 
210
<a name="id-1.2.13.5.7.3.6"></a><h4>Returns</h4>
 
211
<p> The AAC index for this sample rate, -1 if the rate is not a
 
212
valid AAC sample rate.</p>
 
213
<p></p>
 
214
</div>
 
215
</div>
 
216
<hr>
 
217
<div class="refsect2">
 
218
<a name="gst-codec-utils-aac-get-profile"></a><h3>gst_codec_utils_aac_get_profile ()</h3>
 
219
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
220
gst_codec_utils_aac_get_profile (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
 
221
                                 <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
222
<p>Returns the profile of the given AAC stream as a string. The profile is
152
223
determined using the AudioObjectType field which is in the first 5 bits of
153
 
<em class="parameter"><code>audio_config</code></em>.
154
 
</p>
155
 
<p>
156
 
</p>
157
 
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
158
 
<h3 class="title">Note</h3>
 
224
<em class="parameter"><code>audio_config</code></em>
 
225
.</p>
 
226
<div class="note">
159
227
HE-AAC support has not yet been implemented.
160
228
</div>
161
 
<p>
162
 
</p>
163
 
<div class="variablelist"><table border="0" class="variablelist">
 
229
<div class="refsect3">
 
230
<a name="id-1.2.13.5.7.4.6"></a><h4>Parameters</h4>
 
231
<div class="informaltable"><table width="100%" border="0">
164
232
<colgroup>
165
 
<col align="left" valign="top">
166
 
<col>
 
233
<col width="150px" class="parameters_name">
 
234
<col class="parameters_description">
 
235
<col width="200px" class="parameters_annotations">
167
236
</colgroup>
168
237
<tbody>
169
238
<tr>
170
 
<td><p><span class="term"><em class="parameter"><code>audio_config</code></em> :</span></p></td>
171
 
<td>a pointer to the AudioSpecificConfig as specified in the
 
239
<td class="parameter_name"><p>audio_config</p></td>
 
240
<td class="parameter_description"><p>a pointer to the AudioSpecificConfig as specified in the
172
241
Elementary Stream Descriptor (esds) in ISO/IEC 14496-1 (see
173
 
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()"><code class="function">gst_codec_utils_aac_get_level()</code></a> for a more details).</td>
174
 
</tr>
175
 
<tr>
176
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
177
 
<td>Length of <em class="parameter"><code>audio_config</code></em> in bytes</td>
178
 
</tr>
179
 
<tr>
180
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
181
 
<td>The profile as a const string and <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the profile could not be
182
 
determined.</td>
 
242
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()"><code class="function">gst_codec_utils_aac_get_level()</code></a> for a more details).</p></td>
 
243
<td class="parameter_annotations"> </td>
 
244
</tr>
 
245
<tr>
 
246
<td class="parameter_name"><p>len</p></td>
 
247
<td class="parameter_description"><p>Length of <em class="parameter"><code>audio_config</code></em>
 
248
in bytes</p></td>
 
249
<td class="parameter_annotations"> </td>
183
250
</tr>
184
251
</tbody>
185
252
</table></div>
186
253
</div>
 
254
<div class="refsect3">
 
255
<a name="id-1.2.13.5.7.4.7"></a><h4>Returns</h4>
 
256
<p> The profile as a const string and <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the profile could not be
 
257
determined.</p>
 
258
<p></p>
 
259
</div>
 
260
</div>
187
261
<hr>
188
262
<div class="refsect2">
189
 
<a name="gst-codec-utils-aac-get-level"></a><h3>gst_codec_utils_aac_get_level ()</h3>
190
 
<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_codec_utils_aac_get_level       (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
191
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
192
 
<p>
193
 
Determines the level of a stream as defined in ISO/IEC 14496-3. For AAC LC
 
263
<a name="gst-codec-utils-aac-get-level"></a><h3>gst_codec_utils_aac_get_level ()</h3>
 
264
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
265
gst_codec_utils_aac_get_level (<em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
 
266
                               <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
267
<p>Determines the level of a stream as defined in ISO/IEC 14496-3. For AAC LC
194
268
streams, the constraints from the AAC audio profile are applied. For AAC
195
 
Main, LTP, SSR and others, the Main profile is used.
196
 
</p>
197
 
<p>
198
 
The <em class="parameter"><code>audio_config</code></em> parameter follows the following format, starting from the
199
 
most significant bit of the first byte:
200
 
</p>
201
 
<p>
202
 
</p>
 
269
Main, LTP, SSR and others, the Main profile is used.</p>
 
270
<p>The <em class="parameter"><code>audio_config</code></em>
 
271
 parameter follows the following format, starting from the
 
272
most significant bit of the first byte:</p>
203
273
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
204
274
<li class="listitem"><p>
205
275
    Bit 0:4 contains the AudioObjectType
213
283
    Bit 9:12 contains the channel configuration
214
284
  </p></li>
215
285
</ul></div>
216
 
<p>
217
 
</p>
218
 
<p>
219
 
</p>
220
 
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
221
 
<h3 class="title">Note</h3>
 
286
<div class="note">
222
287
HE-AAC support has not yet been implemented.
223
288
</div>
224
 
<p>
225
 
</p>
226
 
<div class="variablelist"><table border="0" class="variablelist">
 
289
<div class="refsect3">
 
290
<a name="id-1.2.13.5.7.5.8"></a><h4>Parameters</h4>
 
291
<div class="informaltable"><table width="100%" border="0">
227
292
<colgroup>
228
 
<col align="left" valign="top">
229
 
<col>
 
293
<col width="150px" class="parameters_name">
 
294
<col class="parameters_description">
 
295
<col width="200px" class="parameters_annotations">
230
296
</colgroup>
231
297
<tbody>
232
298
<tr>
233
 
<td><p><span class="term"><em class="parameter"><code>audio_config</code></em> :</span></p></td>
234
 
<td>a pointer to the AudioSpecificConfig as specified in the
235
 
Elementary Stream Descriptor (esds) in ISO/IEC 14496-1.</td>
236
 
</tr>
237
 
<tr>
238
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
239
 
<td>Length of <em class="parameter"><code>audio_config</code></em> in bytes</td>
240
 
</tr>
241
 
<tr>
242
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
243
 
<td>The level as a const string and <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the level could not be
244
 
determined.</td>
 
299
<td class="parameter_name"><p>audio_config</p></td>
 
300
<td class="parameter_description"><p>a pointer to the AudioSpecificConfig as specified in the
 
301
Elementary Stream Descriptor (esds) in ISO/IEC 14496-1.</p></td>
 
302
<td class="parameter_annotations"> </td>
 
303
</tr>
 
304
<tr>
 
305
<td class="parameter_name"><p>len</p></td>
 
306
<td class="parameter_description"><p>Length of <em class="parameter"><code>audio_config</code></em>
 
307
in bytes</p></td>
 
308
<td class="parameter_annotations"> </td>
245
309
</tr>
246
310
</tbody>
247
311
</table></div>
248
312
</div>
 
313
<div class="refsect3">
 
314
<a name="id-1.2.13.5.7.5.9"></a><h4>Returns</h4>
 
315
<p> The level as a const string and <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the level could not be
 
316
determined.</p>
 
317
<p></p>
 
318
</div>
 
319
</div>
249
320
<hr>
250
321
<div class="refsect2">
251
 
<a name="gst-codec-utils-aac-caps-set-level-and-profile"></a><h3>gst_codec_utils_aac_caps_set_level_and_profile ()</h3>
252
 
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_codec_utils_aac_caps_set_level_and_profile
253
 
                                                        (<em class="parameter"><code><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>,
254
 
                                                         <em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
255
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
256
 
<p>
257
 
Sets the level and profile on <em class="parameter"><code>caps</code></em> if it can be determined from
258
 
<em class="parameter"><code>audio_config</code></em>. See <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()"><code class="function">gst_codec_utils_aac_get_level()</code></a> and
259
 
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-profile" title="gst_codec_utils_aac_get_profile ()"><code class="function">gst_codec_utils_aac_get_profile()</code></a> for more details on the parameters.
260
 
<em class="parameter"><code>caps</code></em> must be audio/mpeg caps with an "mpegversion" field of either 2 or 4.
261
 
If mpegversion is 4, the "base-profile" field is also set in <em class="parameter"><code>caps</code></em>.
262
 
</p>
263
 
<div class="variablelist"><table border="0" class="variablelist">
 
322
<a name="gst-codec-utils-aac-caps-set-level-and-profile"></a><h3>gst_codec_utils_aac_caps_set_level_and_profile ()</h3>
 
323
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
324
gst_codec_utils_aac_caps_set_level_and_profile
 
325
                               (<em class="parameter"><code><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>,
 
326
                                <em class="parameter"><code>const <span class="type">guint8</span> *audio_config</code></em>,
 
327
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
328
<p>Sets the level and profile on <em class="parameter"><code>caps</code></em>
 
329
 if it can be determined from
 
330
<em class="parameter"><code>audio_config</code></em>
 
331
. See <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-level" title="gst_codec_utils_aac_get_level ()"><code class="function">gst_codec_utils_aac_get_level()</code></a> and
 
332
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-aac-get-profile" title="gst_codec_utils_aac_get_profile ()"><code class="function">gst_codec_utils_aac_get_profile()</code></a> for more details on the parameters.
 
333
<em class="parameter"><code>caps</code></em>
 
334
 must be audio/mpeg caps with an "mpegversion" field of either 2 or 4.
 
335
If mpegversion is 4, the "base-profile" field is also set in <em class="parameter"><code>caps</code></em>
 
336
.</p>
 
337
<div class="refsect3">
 
338
<a name="id-1.2.13.5.7.6.5"></a><h4>Parameters</h4>
 
339
<div class="informaltable"><table width="100%" border="0">
264
340
<colgroup>
265
 
<col align="left" valign="top">
266
 
<col>
 
341
<col width="150px" class="parameters_name">
 
342
<col class="parameters_description">
 
343
<col width="200px" class="parameters_annotations">
267
344
</colgroup>
268
345
<tbody>
269
346
<tr>
270
 
<td><p><span class="term"><em class="parameter"><code>caps</code></em> :</span></p></td>
271
 
<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 which level and profile fields are to be added</td>
 
347
<td class="parameter_name"><p>caps</p></td>
 
348
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> to which level and profile fields are to be added</p></td>
 
349
<td class="parameter_annotations"> </td>
272
350
</tr>
273
351
<tr>
274
 
<td><p><span class="term"><em class="parameter"><code>audio_config</code></em> :</span></p></td>
275
 
<td>a pointer to the AudioSpecificConfig as specified in the
 
352
<td class="parameter_name"><p>audio_config</p></td>
 
353
<td class="parameter_description"><p>a pointer to the AudioSpecificConfig as specified in the
276
354
Elementary Stream Descriptor (esds) in ISO/IEC 14496-1 (see
277
 
below for a more details).</td>
278
 
</tr>
279
 
<tr>
280
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
281
 
<td>Length of <em class="parameter"><code>audio_config</code></em> in bytes</td>
282
 
</tr>
283
 
<tr>
284
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
285
 
<td>
286
 
<a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
 
355
below for a more details).</p></td>
 
356
<td class="parameter_annotations"> </td>
 
357
</tr>
 
358
<tr>
 
359
<td class="parameter_name"><p>len</p></td>
 
360
<td class="parameter_description"><p>Length of <em class="parameter"><code>audio_config</code></em>
 
361
in bytes</p></td>
 
362
<td class="parameter_annotations"> </td>
287
363
</tr>
288
364
</tbody>
289
365
</table></div>
290
366
</div>
 
367
<div class="refsect3">
 
368
<a name="id-1.2.13.5.7.6.6"></a><h4>Returns</h4>
 
369
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
 
370
<p></p>
 
371
</div>
 
372
</div>
291
373
<hr>
292
374
<div class="refsect2">
293
 
<a name="gst-codec-utils-h264-get-profile"></a><h3>gst_codec_utils_h264_get_profile ()</h3>
294
 
<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_codec_utils_h264_get_profile    (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
295
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
296
 
<p>
297
 
Converts the profile indication (profile_idc) in the stream's
 
375
<a name="gst-codec-utils-h264-get-profile"></a><h3>gst_codec_utils_h264_get_profile ()</h3>
 
376
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
377
gst_codec_utils_h264_get_profile (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
 
378
                                  <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
379
<p>Converts the profile indication (profile_idc) in the stream's
298
380
sequence parameter set into a string. The SPS is expected to have the
299
381
following format, as defined in the H.264 specification. The SPS is viewed
300
382
as a bitstream here, with bit 0 being the most significant bit of the first
301
 
byte.
302
 
</p>
303
 
<p>
304
 
</p>
 
383
byte.</p>
305
384
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
306
385
<li class="listitem"><p>Bit 0:7   - Profile indication</p></li>
307
386
<li class="listitem"><p>Bit 8     - constraint_set0_flag</p></li>
312
391
<li class="listitem"><p>Bit 13:15 - Reserved</p></li>
313
392
<li class="listitem"><p>Bit 16:24 - Level indication</p></li>
314
393
</ul></div>
315
 
<p>
316
 
</p>
317
 
<div class="variablelist"><table border="0" class="variablelist">
 
394
<div class="refsect3">
 
395
<a name="id-1.2.13.5.7.7.6"></a><h4>Parameters</h4>
 
396
<div class="informaltable"><table width="100%" border="0">
318
397
<colgroup>
319
 
<col align="left" valign="top">
320
 
<col>
 
398
<col width="150px" class="parameters_name">
 
399
<col class="parameters_description">
 
400
<col width="200px" class="parameters_annotations">
321
401
</colgroup>
322
402
<tbody>
323
403
<tr>
324
 
<td><p><span class="term"><em class="parameter"><code>sps</code></em> :</span></p></td>
325
 
<td>Pointer to the sequence parameter set for the stream.</td>
326
 
</tr>
327
 
<tr>
328
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
329
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
330
 
</tr>
331
 
<tr>
332
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
333
 
<td>The profile as a const string, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there is an error.</td>
 
404
<td class="parameter_name"><p>sps</p></td>
 
405
<td class="parameter_description"><p>Pointer to the sequence parameter set for the stream.</p></td>
 
406
<td class="parameter_annotations"> </td>
 
407
</tr>
 
408
<tr>
 
409
<td class="parameter_name"><p>len</p></td>
 
410
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
411
.</p></td>
 
412
<td class="parameter_annotations"> </td>
334
413
</tr>
335
414
</tbody>
336
415
</table></div>
337
416
</div>
 
417
<div class="refsect3">
 
418
<a name="id-1.2.13.5.7.7.7"></a><h4>Returns</h4>
 
419
<p> The profile as a const string, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there is an error.</p>
 
420
<p></p>
 
421
</div>
 
422
</div>
338
423
<hr>
339
424
<div class="refsect2">
340
 
<a name="gst-codec-utils-h264-get-level"></a><h3>gst_codec_utils_h264_get_level ()</h3>
341
 
<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_codec_utils_h264_get_level      (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
342
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
343
 
<p>
344
 
Converts the level indication (level_idc) in the stream's
 
425
<a name="gst-codec-utils-h264-get-level"></a><h3>gst_codec_utils_h264_get_level ()</h3>
 
426
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
427
gst_codec_utils_h264_get_level (<em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
 
428
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
429
<p>Converts the level indication (level_idc) in the stream's
345
430
sequence parameter set into a string. The SPS is expected to have the
346
 
same format as for <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()"><code class="function">gst_codec_utils_h264_get_profile()</code></a>.
347
 
</p>
348
 
<div class="variablelist"><table border="0" class="variablelist">
349
 
<colgroup>
350
 
<col align="left" valign="top">
351
 
<col>
352
 
</colgroup>
353
 
<tbody>
354
 
<tr>
355
 
<td><p><span class="term"><em class="parameter"><code>sps</code></em> :</span></p></td>
356
 
<td>Pointer to the sequence parameter set for the stream.</td>
357
 
</tr>
358
 
<tr>
359
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
360
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
361
 
</tr>
362
 
<tr>
363
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
364
 
<td>The level as a const string, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there is an error.</td>
365
 
</tr>
366
 
</tbody>
367
 
</table></div>
368
 
</div>
369
 
<hr>
370
 
<div class="refsect2">
371
 
<a name="gst-codec-utils-h264-caps-set-level-and-profile"></a><h3>gst_codec_utils_h264_caps_set_level_and_profile ()</h3>
372
 
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_codec_utils_h264_caps_set_level_and_profile
373
 
                                                        (<em class="parameter"><code><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>,
374
 
                                                         <em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
375
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
376
 
<p>
377
 
Sets the level and profile in <em class="parameter"><code>caps</code></em> if it can be determined from <em class="parameter"><code>sps</code></em>. See
378
 
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level" title="gst_codec_utils_h264_get_level ()"><code class="function">gst_codec_utils_h264_get_level()</code></a> and <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()"><code class="function">gst_codec_utils_h264_get_profile()</code></a>
379
 
for more details on the parameters.
380
 
</p>
381
 
<div class="variablelist"><table border="0" class="variablelist">
382
 
<colgroup>
383
 
<col align="left" valign="top">
384
 
<col>
385
 
</colgroup>
386
 
<tbody>
387
 
<tr>
388
 
<td><p><span class="term"><em class="parameter"><code>caps</code></em> :</span></p></td>
389
 
<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 which the level and profile are to be added</td>
390
 
</tr>
391
 
<tr>
392
 
<td><p><span class="term"><em class="parameter"><code>sps</code></em> :</span></p></td>
393
 
<td>Pointer to the sequence parameter set for the stream.</td>
394
 
</tr>
395
 
<tr>
396
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
397
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
398
 
</tr>
399
 
<tr>
400
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
401
 
<td>
402
 
<a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
403
 
</tr>
404
 
</tbody>
405
 
</table></div>
406
 
</div>
407
 
<hr>
408
 
<div class="refsect2">
409
 
<a name="gst-codec-utils-h264-get-level-idc"></a><h3>gst_codec_utils_h264_get_level_idc ()</h3>
410
 
<pre class="programlisting"><span class="returnvalue">guint8</span>              gst_codec_utils_h264_get_level_idc  (<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> *level</code></em>);</pre>
411
 
<p>
412
 
Transform a level string from the caps into the level_idc
413
 
</p>
414
 
<div class="variablelist"><table border="0" class="variablelist">
415
 
<colgroup>
416
 
<col align="left" valign="top">
417
 
<col>
418
 
</colgroup>
419
 
<tbody>
420
 
<tr>
421
 
<td><p><span class="term"><em class="parameter"><code>level</code></em> :</span></p></td>
422
 
<td>A level string from caps</td>
423
 
</tr>
424
 
<tr>
425
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
426
 
<td>the level_idc or 0 if the level is unknown</td>
427
 
</tr>
428
 
</tbody>
429
 
</table></div>
430
 
</div>
431
 
<hr>
432
 
<div class="refsect2">
433
 
<a name="gst-codec-utils-mpeg4video-get-profile"></a><h3>gst_codec_utils_mpeg4video_get_profile ()</h3>
434
 
<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_codec_utils_mpeg4video_get_profile
435
 
                                                        (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
436
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
437
 
<p>
438
 
Converts the profile indication in the stream's visual object sequence into
439
 
a string. <em class="parameter"><code>vis_obj_seq</code></em> is expected to be the data following the visual
440
 
object sequence start code. Only the first byte
441
 
(profile_and_level_indication) is used.
442
 
</p>
443
 
<div class="variablelist"><table border="0" class="variablelist">
444
 
<colgroup>
445
 
<col align="left" valign="top">
446
 
<col>
447
 
</colgroup>
448
 
<tbody>
449
 
<tr>
450
 
<td><p><span class="term"><em class="parameter"><code>vis_obj_seq</code></em> :</span></p></td>
451
 
<td>Pointer to the visual object sequence for the stream.</td>
452
 
</tr>
453
 
<tr>
454
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
455
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
456
 
</tr>
457
 
<tr>
458
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
459
 
<td>The profile as a const string, or NULL if there is an error.</td>
460
 
</tr>
461
 
</tbody>
462
 
</table></div>
463
 
</div>
464
 
<hr>
465
 
<div class="refsect2">
466
 
<a name="gst-codec-utils-mpeg4video-get-level"></a><h3>gst_codec_utils_mpeg4video_get_level ()</h3>
467
 
<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_codec_utils_mpeg4video_get_level
468
 
                                                        (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
469
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
470
 
<p>
471
 
Converts the level indication in the stream's visual object sequence into
472
 
a string. <em class="parameter"><code>vis_obj_seq</code></em> is expected to be the data following the visual
473
 
object sequence start code. Only the first byte
474
 
(profile_and_level_indication) is used.
475
 
</p>
476
 
<div class="variablelist"><table border="0" class="variablelist">
477
 
<colgroup>
478
 
<col align="left" valign="top">
479
 
<col>
480
 
</colgroup>
481
 
<tbody>
482
 
<tr>
483
 
<td><p><span class="term"><em class="parameter"><code>vis_obj_seq</code></em> :</span></p></td>
484
 
<td>Pointer to the visual object sequence for the stream.</td>
485
 
</tr>
486
 
<tr>
487
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
488
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
489
 
</tr>
490
 
<tr>
491
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
492
 
<td>The level as a const string, or NULL if there is an error.</td>
493
 
</tr>
494
 
</tbody>
495
 
</table></div>
496
 
</div>
497
 
<hr>
498
 
<div class="refsect2">
499
 
<a name="gst-codec-utils-mpeg4video-caps-set-level-and-profile"></a><h3>gst_codec_utils_mpeg4video_caps_set_level_and_profile ()</h3>
500
 
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_codec_utils_mpeg4video_caps_set_level_and_profile
501
 
                                                        (<em class="parameter"><code><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>,
502
 
                                                         <em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
503
 
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
504
 
<p>
505
 
Sets the level and profile in <em class="parameter"><code>caps</code></em> if it can be determined from
506
 
<em class="parameter"><code>vis_obj_seq</code></em>. See <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-level" title="gst_codec_utils_mpeg4video_get_level ()"><code class="function">gst_codec_utils_mpeg4video_get_level()</code></a> and
507
 
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-profile" title="gst_codec_utils_mpeg4video_get_profile ()"><code class="function">gst_codec_utils_mpeg4video_get_profile()</code></a> for more details on the
508
 
parameters.
509
 
</p>
510
 
<div class="variablelist"><table border="0" class="variablelist">
511
 
<colgroup>
512
 
<col align="left" valign="top">
513
 
<col>
514
 
</colgroup>
515
 
<tbody>
516
 
<tr>
517
 
<td><p><span class="term"><em class="parameter"><code>caps</code></em> :</span></p></td>
518
 
<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 which the level and profile are to be added</td>
519
 
</tr>
520
 
<tr>
521
 
<td><p><span class="term"><em class="parameter"><code>vis_obj_seq</code></em> :</span></p></td>
522
 
<td>Pointer to the visual object sequence for the stream.</td>
523
 
</tr>
524
 
<tr>
525
 
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
526
 
<td>Length of the data available in <em class="parameter"><code>sps</code></em>.</td>
527
 
</tr>
528
 
<tr>
529
 
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
530
 
<td>
531
 
<a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
532
 
</tr>
533
 
</tbody>
534
 
</table></div>
535
 
</div>
 
431
same format as for <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()"><code class="function">gst_codec_utils_h264_get_profile()</code></a>.</p>
 
432
<div class="refsect3">
 
433
<a name="id-1.2.13.5.7.8.5"></a><h4>Parameters</h4>
 
434
<div class="informaltable"><table width="100%" border="0">
 
435
<colgroup>
 
436
<col width="150px" class="parameters_name">
 
437
<col class="parameters_description">
 
438
<col width="200px" class="parameters_annotations">
 
439
</colgroup>
 
440
<tbody>
 
441
<tr>
 
442
<td class="parameter_name"><p>sps</p></td>
 
443
<td class="parameter_description"><p>Pointer to the sequence parameter set for the stream.</p></td>
 
444
<td class="parameter_annotations"> </td>
 
445
</tr>
 
446
<tr>
 
447
<td class="parameter_name"><p>len</p></td>
 
448
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
449
.</p></td>
 
450
<td class="parameter_annotations"> </td>
 
451
</tr>
 
452
</tbody>
 
453
</table></div>
 
454
</div>
 
455
<div class="refsect3">
 
456
<a name="id-1.2.13.5.7.8.6"></a><h4>Returns</h4>
 
457
<p> The level as a const string, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there is an error.</p>
 
458
<p></p>
 
459
</div>
 
460
</div>
 
461
<hr>
 
462
<div class="refsect2">
 
463
<a name="gst-codec-utils-h264-caps-set-level-and-profile"></a><h3>gst_codec_utils_h264_caps_set_level_and_profile ()</h3>
 
464
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
465
gst_codec_utils_h264_caps_set_level_and_profile
 
466
                               (<em class="parameter"><code><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>,
 
467
                                <em class="parameter"><code>const <span class="type">guint8</span> *sps</code></em>,
 
468
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
469
<p>Sets the level and profile in <em class="parameter"><code>caps</code></em>
 
470
 if it can be determined from <em class="parameter"><code>sps</code></em>
 
471
. See
 
472
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-level" title="gst_codec_utils_h264_get_level ()"><code class="function">gst_codec_utils_h264_get_level()</code></a> and <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-h264-get-profile" title="gst_codec_utils_h264_get_profile ()"><code class="function">gst_codec_utils_h264_get_profile()</code></a>
 
473
for more details on the parameters.</p>
 
474
<div class="refsect3">
 
475
<a name="id-1.2.13.5.7.9.5"></a><h4>Parameters</h4>
 
476
<div class="informaltable"><table width="100%" border="0">
 
477
<colgroup>
 
478
<col width="150px" class="parameters_name">
 
479
<col class="parameters_description">
 
480
<col width="200px" class="parameters_annotations">
 
481
</colgroup>
 
482
<tbody>
 
483
<tr>
 
484
<td class="parameter_name"><p>caps</p></td>
 
485
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> to which the level and profile are to be added</p></td>
 
486
<td class="parameter_annotations"> </td>
 
487
</tr>
 
488
<tr>
 
489
<td class="parameter_name"><p>sps</p></td>
 
490
<td class="parameter_description"><p>Pointer to the sequence parameter set for the stream.</p></td>
 
491
<td class="parameter_annotations"> </td>
 
492
</tr>
 
493
<tr>
 
494
<td class="parameter_name"><p>len</p></td>
 
495
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
496
.</p></td>
 
497
<td class="parameter_annotations"> </td>
 
498
</tr>
 
499
</tbody>
 
500
</table></div>
 
501
</div>
 
502
<div class="refsect3">
 
503
<a name="id-1.2.13.5.7.9.6"></a><h4>Returns</h4>
 
504
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
 
505
<p></p>
 
506
</div>
 
507
</div>
 
508
<hr>
 
509
<div class="refsect2">
 
510
<a name="gst-codec-utils-h264-get-level-idc"></a><h3>gst_codec_utils_h264_get_level_idc ()</h3>
 
511
<pre class="programlisting"><span class="returnvalue">guint8</span>
 
512
gst_codec_utils_h264_get_level_idc (<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> *level</code></em>);</pre>
 
513
<p>Transform a level string from the caps into the level_idc</p>
 
514
<div class="refsect3">
 
515
<a name="id-1.2.13.5.7.10.5"></a><h4>Parameters</h4>
 
516
<div class="informaltable"><table width="100%" border="0">
 
517
<colgroup>
 
518
<col width="150px" class="parameters_name">
 
519
<col class="parameters_description">
 
520
<col width="200px" class="parameters_annotations">
 
521
</colgroup>
 
522
<tbody><tr>
 
523
<td class="parameter_name"><p>level</p></td>
 
524
<td class="parameter_description"><p>A level string from caps</p></td>
 
525
<td class="parameter_annotations"> </td>
 
526
</tr></tbody>
 
527
</table></div>
 
528
</div>
 
529
<div class="refsect3">
 
530
<a name="id-1.2.13.5.7.10.6"></a><h4>Returns</h4>
 
531
<p> the level_idc or 0 if the level is unknown</p>
 
532
<p></p>
 
533
</div>
 
534
</div>
 
535
<hr>
 
536
<div class="refsect2">
 
537
<a name="gst-codec-utils-mpeg4video-get-profile"></a><h3>gst_codec_utils_mpeg4video_get_profile ()</h3>
 
538
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
539
gst_codec_utils_mpeg4video_get_profile
 
540
                               (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
 
541
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
542
<p>Converts the profile indication in the stream's visual object sequence into
 
543
a string. <em class="parameter"><code>vis_obj_seq</code></em>
 
544
 is expected to be the data following the visual
 
545
object sequence start code. Only the first byte
 
546
(profile_and_level_indication) is used.</p>
 
547
<div class="refsect3">
 
548
<a name="id-1.2.13.5.7.11.5"></a><h4>Parameters</h4>
 
549
<div class="informaltable"><table width="100%" border="0">
 
550
<colgroup>
 
551
<col width="150px" class="parameters_name">
 
552
<col class="parameters_description">
 
553
<col width="200px" class="parameters_annotations">
 
554
</colgroup>
 
555
<tbody>
 
556
<tr>
 
557
<td class="parameter_name"><p>vis_obj_seq</p></td>
 
558
<td class="parameter_description"><p>Pointer to the visual object sequence for the stream.</p></td>
 
559
<td class="parameter_annotations"> </td>
 
560
</tr>
 
561
<tr>
 
562
<td class="parameter_name"><p>len</p></td>
 
563
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
564
.</p></td>
 
565
<td class="parameter_annotations"> </td>
 
566
</tr>
 
567
</tbody>
 
568
</table></div>
 
569
</div>
 
570
<div class="refsect3">
 
571
<a name="id-1.2.13.5.7.11.6"></a><h4>Returns</h4>
 
572
<p> The profile as a const string, or NULL if there is an error.</p>
 
573
<p></p>
 
574
</div>
 
575
</div>
 
576
<hr>
 
577
<div class="refsect2">
 
578
<a name="gst-codec-utils-mpeg4video-get-level"></a><h3>gst_codec_utils_mpeg4video_get_level ()</h3>
 
579
<pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 
580
gst_codec_utils_mpeg4video_get_level (<em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
 
581
                                      <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
582
<p>Converts the level indication in the stream's visual object sequence into
 
583
a string. <em class="parameter"><code>vis_obj_seq</code></em>
 
584
 is expected to be the data following the visual
 
585
object sequence start code. Only the first byte
 
586
(profile_and_level_indication) is used.</p>
 
587
<div class="refsect3">
 
588
<a name="id-1.2.13.5.7.12.5"></a><h4>Parameters</h4>
 
589
<div class="informaltable"><table width="100%" border="0">
 
590
<colgroup>
 
591
<col width="150px" class="parameters_name">
 
592
<col class="parameters_description">
 
593
<col width="200px" class="parameters_annotations">
 
594
</colgroup>
 
595
<tbody>
 
596
<tr>
 
597
<td class="parameter_name"><p>vis_obj_seq</p></td>
 
598
<td class="parameter_description"><p>Pointer to the visual object sequence for the stream.</p></td>
 
599
<td class="parameter_annotations"> </td>
 
600
</tr>
 
601
<tr>
 
602
<td class="parameter_name"><p>len</p></td>
 
603
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
604
.</p></td>
 
605
<td class="parameter_annotations"> </td>
 
606
</tr>
 
607
</tbody>
 
608
</table></div>
 
609
</div>
 
610
<div class="refsect3">
 
611
<a name="id-1.2.13.5.7.12.6"></a><h4>Returns</h4>
 
612
<p> The level as a const string, or NULL if there is an error.</p>
 
613
<p></p>
 
614
</div>
 
615
</div>
 
616
<hr>
 
617
<div class="refsect2">
 
618
<a name="gst-codec-utils-mpeg4video-caps-set-level-and-profile"></a><h3>gst_codec_utils_mpeg4video_caps_set_level_and_profile ()</h3>
 
619
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 
620
gst_codec_utils_mpeg4video_caps_set_level_and_profile
 
621
                               (<em class="parameter"><code><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>,
 
622
                                <em class="parameter"><code>const <span class="type">guint8</span> *vis_obj_seq</code></em>,
 
623
                                <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> len</code></em>);</pre>
 
624
<p>Sets the level and profile in <em class="parameter"><code>caps</code></em>
 
625
 if it can be determined from
 
626
<em class="parameter"><code>vis_obj_seq</code></em>
 
627
. See <a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-level" title="gst_codec_utils_mpeg4video_get_level ()"><code class="function">gst_codec_utils_mpeg4video_get_level()</code></a> and
 
628
<a class="link" href="gst-plugins-base-libs-gstpbutilscodecutils.html#gst-codec-utils-mpeg4video-get-profile" title="gst_codec_utils_mpeg4video_get_profile ()"><code class="function">gst_codec_utils_mpeg4video_get_profile()</code></a> for more details on the
 
629
parameters.</p>
 
630
<div class="refsect3">
 
631
<a name="id-1.2.13.5.7.13.5"></a><h4>Parameters</h4>
 
632
<div class="informaltable"><table width="100%" border="0">
 
633
<colgroup>
 
634
<col width="150px" class="parameters_name">
 
635
<col class="parameters_description">
 
636
<col width="200px" class="parameters_annotations">
 
637
</colgroup>
 
638
<tbody>
 
639
<tr>
 
640
<td class="parameter_name"><p>caps</p></td>
 
641
<td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> to which the level and profile are to be added</p></td>
 
642
<td class="parameter_annotations"> </td>
 
643
</tr>
 
644
<tr>
 
645
<td class="parameter_name"><p>vis_obj_seq</p></td>
 
646
<td class="parameter_description"><p>Pointer to the visual object sequence for the stream.</p></td>
 
647
<td class="parameter_annotations"> </td>
 
648
</tr>
 
649
<tr>
 
650
<td class="parameter_name"><p>len</p></td>
 
651
<td class="parameter_description"><p>Length of the data available in <em class="parameter"><code>sps</code></em>
 
652
.</p></td>
 
653
<td class="parameter_annotations"> </td>
 
654
</tr>
 
655
</tbody>
 
656
</table></div>
 
657
</div>
 
658
<div class="refsect3">
 
659
<a name="id-1.2.13.5.7.13.6"></a><h4>Returns</h4>
 
660
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the level and profile could be set, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
 
661
<p></p>
 
662
</div>
 
663
</div>
 
664
</div>
 
665
<div class="refsect1">
 
666
<a name="gst-plugins-base-libs-gstpbutilscodecutils.other_details"></a><h2>Types and Values</h2>
536
667
</div>
537
668
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