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showbox-public-14 / ffmpeg-doc deb
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<tr class="memdesc:group__preproc__misc"><td class="mdescLeft"> </td><td class="mdescRight">String manipulation macros. <br/></td></tr>
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<tr class="memitem:group__version__utils"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__version__utils.html">Library Version Macros</a></td></tr>
<tr class="memdesc:group__version__utils"><td class="mdescLeft"> </td><td class="mdescRight">Useful to check and match library version in order to maintain backward compatibility. <br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memdesc:group__lavu__picture"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="structAVPicture.html" title="Picture data structure. ">AVPicture</a> types, pixel formats and basic image planes manipulation. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__lavu__ver"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__ver.html">Version and Build diagnostics</a></td></tr>
<tr class="memdesc:group__lavu__ver"><td class="mdescLeft"> </td><td class="mdescRight">Macros and function useful to check at compiletime and at runtime which version of libavutil is in use. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__lavu__media"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__media.html">Media Type</a></td></tr>
<tr class="memdesc:group__lavu__media"><td class="mdescLeft"> </td><td class="mdescRight">Media Type. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:gaddb1ee4dba6de5845eda3e9e1e740366"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#gaddb1ee4dba6de5845eda3e9e1e740366">av_int_list_length</a>(list, term)   <a class="el" href="group__lavu__misc.html#ga7894e9b1ec8844685bc9101779c7d533">av_int_list_length_for_size</a>(sizeof(*(list)), list, term)</td></tr>
<tr class="memdesc:gaddb1ee4dba6de5845eda3e9e1e740366"><td class="mdescLeft"> </td><td class="mdescRight">Compute the length of an integer list. <a href="#gaddb1ee4dba6de5845eda3e9e1e740366">More...</a><br/></td></tr>
<tr class="separator:gaddb1ee4dba6de5845eda3e9e1e740366"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ga9a84bba4713dfced21a1a56163be1f48"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a> { <br/>
  <a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48afdadbd6c4f612c59f6b6c7c6f84fd347">AVMEDIA_TYPE_UNKNOWN</a> = -1,
<a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48ac1a46f59be5c6c2d3412ab172d6b8cf5">AVMEDIA_TYPE_VIDEO</a>,
<a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48a7b4e33b8f30ac94d34ce8d9f7c33927a">AVMEDIA_TYPE_AUDIO</a>,
<a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48ae3df4d77c6908fb626293c2fed215d52">AVMEDIA_TYPE_DATA</a>,
<br/>
  <a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48aa64a67386a9c53360744b86e4707b831">AVMEDIA_TYPE_SUBTITLE</a>,
<a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48a2d09f16df8631e64e8fa566142cdc99d">AVMEDIA_TYPE_ATTACHMENT</a>,
<a class="el" href="group__lavu__misc.html#gga9a84bba4713dfced21a1a56163be1f48a8e220e09ef38f26963e8e2ec731fb7d9">AVMEDIA_TYPE_NB</a>
<br/>
}</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaf21645cfa855b2caf9699d7dc7b2d08e"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#gaf21645cfa855b2caf9699d7dc7b2d08e">av_get_media_type_string</a> (enum <a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a> media_type)</td></tr>
<tr class="memdesc:gaf21645cfa855b2caf9699d7dc7b2d08e"><td class="mdescLeft"> </td><td class="mdescRight">Return a string describing the media_type enum, NULL if media_type is unknown. <a href="#gaf21645cfa855b2caf9699d7dc7b2d08e">More...</a><br/></td></tr>
<tr class="separator:gaf21645cfa855b2caf9699d7dc7b2d08e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga87458dccf9ab1444c363df5fa8a3f28f"><td class="memItemLeft" align="right" valign="top">static void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#ga87458dccf9ab1444c363df5fa8a3f28f">av_x_if_null</a> (const void *p, const void *x)</td></tr>
<tr class="memdesc:ga87458dccf9ab1444c363df5fa8a3f28f"><td class="mdescLeft"> </td><td class="mdescRight">Return x default pointer in case p is NULL. <a href="#ga87458dccf9ab1444c363df5fa8a3f28f">More...</a><br/></td></tr>
<tr class="separator:ga87458dccf9ab1444c363df5fa8a3f28f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7894e9b1ec8844685bc9101779c7d533"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#ga7894e9b1ec8844685bc9101779c7d533">av_int_list_length_for_size</a> (unsigned elsize, const void *list, uint64_t term) <a class="el" href="attributes_8h.html#adc7fd5bb40d84900a3a30ef3318020c2">av_pure</a></td></tr>
<tr class="memdesc:ga7894e9b1ec8844685bc9101779c7d533"><td class="mdescLeft"> </td><td class="mdescRight">Compute the length of an integer list. <a href="#ga7894e9b1ec8844685bc9101779c7d533">More...</a><br/></td></tr>
<tr class="separator:ga7894e9b1ec8844685bc9101779c7d533"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga553b85a36da32c041738a89aa61f9fbd"><td class="memItemLeft" align="right" valign="top">FILE * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#ga553b85a36da32c041738a89aa61f9fbd">av_fopen_utf8</a> (const char *path, const char *mode)</td></tr>
<tr class="memdesc:ga553b85a36da32c041738a89aa61f9fbd"><td class="mdescLeft"> </td><td class="mdescRight">Open a file using a UTF-8 filename. <a href="#ga553b85a36da32c041738a89aa61f9fbd">More...</a><br/></td></tr>
<tr class="separator:ga553b85a36da32c041738a89aa61f9fbd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab889104afd2e874f9dd2b3b78b04f3f2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structAVRational.html">AVRational</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavu__misc.html#gab889104afd2e874f9dd2b3b78b04f3f2">av_get_time_base_q</a> (void)</td></tr>
<tr class="memdesc:gab889104afd2e874f9dd2b3b78b04f3f2"><td class="mdescLeft"> </td><td class="mdescRight">Return the fractional representation of the internal time base. <a href="#gab889104afd2e874f9dd2b3b78b04f3f2">More...</a><br/></td></tr>
<tr class="separator:gab889104afd2e874f9dd2b3b78b04f3f2"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="gaddb1ee4dba6de5845eda3e9e1e740366"></a>
<div class="memitem">
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<td class="memname">#define av_int_list_length</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">list, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">term </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td>   <a class="el" href="group__lavu__misc.html#ga7894e9b1ec8844685bc9101779c7d533">av_int_list_length_for_size</a>(sizeof(*(list)), list, term)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Compute the length of an integer list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">term</td><td>list terminator (usually 0 or -1) </td></tr>
<tr><td class="paramname">list</td><td>pointer to the list </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>length of the list, in elements, not counting the terminator </dd></dl>
<p>Definition at line <a class="el" href="avutil_8h_source.html#l00323">323</a> of file <a class="el" href="avutil_8h_source.html">avutil.h</a>.</p>
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</div>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a class="anchor" id="ga9a84bba4713dfced21a1a56163be1f48"></a>
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<div class="memproto">
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<tr>
<td class="memname">enum <a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a></td>
</tr>
</table>
</div><div class="memdoc">
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48afdadbd6c4f612c59f6b6c7c6f84fd347"></a>AVMEDIA_TYPE_UNKNOWN</em> </td><td class="fielddoc">
<p>Usually treated as AVMEDIA_TYPE_DATA. </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48ac1a46f59be5c6c2d3412ab172d6b8cf5"></a>AVMEDIA_TYPE_VIDEO</em> </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48a7b4e33b8f30ac94d34ce8d9f7c33927a"></a>AVMEDIA_TYPE_AUDIO</em> </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48ae3df4d77c6908fb626293c2fed215d52"></a>AVMEDIA_TYPE_DATA</em> </td><td class="fielddoc">
<p>Opaque data information usually continuous. </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48aa64a67386a9c53360744b86e4707b831"></a>AVMEDIA_TYPE_SUBTITLE</em> </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48a2d09f16df8631e64e8fa566142cdc99d"></a>AVMEDIA_TYPE_ATTACHMENT</em> </td><td class="fielddoc">
<p>Opaque data information usually sparse. </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="gga9a84bba4713dfced21a1a56163be1f48a8e220e09ef38f26963e8e2ec731fb7d9"></a>AVMEDIA_TYPE_NB</em> </td><td class="fielddoc">
</td></tr>
</table>
<p>Definition at line <a class="el" href="avutil_8h_source.html#l00191">191</a> of file <a class="el" href="avutil_8h_source.html">avutil.h</a>.</p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaf21645cfa855b2caf9699d7dc7b2d08e"></a>
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<td class="memname">const char* av_get_media_type_string </td>
<td>(</td>
<td class="paramtype">enum <a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a> </td>
<td class="paramname"><em>media_type</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Return a string describing the media_type enum, NULL if media_type is unknown. </p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="demuxing_decoding_8c-example.html#a54">demuxing_decoding.c</a>.</dd>
</dl>
<p>Referenced by <a class="el" href="demuxing__decoding_8c_source.html#l00150">open_codec_context()</a>.</p>
</div>
</div>
<a class="anchor" id="ga87458dccf9ab1444c363df5fa8a3f28f"></a>
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<td class="memname">static void* av_x_if_null </td>
<td>(</td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>x</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Return x default pointer in case p is NULL. </p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="filtering_audio_8c-example.html#a59">filtering_audio.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="avutil_8h_source.html#l00300">300</a> of file <a class="el" href="avutil_8h_source.html">avutil.h</a>.</p>
<p>Referenced by <a class="el" href="filtering__audio_8c_source.html#l00084">init_filters()</a>.</p>
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</div>
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<td class="memname">unsigned av_int_list_length_for_size </td>
<td>(</td>
<td class="paramtype">unsigned </td>
<td class="paramname"><em>elsize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>list</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t </td>
<td class="paramname"><em>term</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Compute the length of an integer list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">elsize</td><td>size in bytes of each list element (only 1, 2, 4 or 8) </td></tr>
<tr><td class="paramname">term</td><td>list terminator (usually 0 or -1) </td></tr>
<tr><td class="paramname">list</td><td>pointer to the list </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>length of the list, in elements, not counting the terminator </dd></dl>
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<td class="memname">FILE* av_fopen_utf8 </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>path</em>, </td>
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<td class="paramtype">const char * </td>
<td class="paramname"><em>mode</em> </td>
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<td>)</td>
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<p>Open a file using a UTF-8 filename. </p>
<p>The API of this function matches POSIX fopen(), errors are returned through errno. </p>
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<td class="memname"><a class="el" href="structAVRational.html">AVRational</a> av_get_time_base_q </td>
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<td class="paramtype">void </td>
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<p>Return the fractional representation of the internal time base. </p>
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