Why Gemfury?
Push, build, and install
RubyGems
npm packages
Python packages
Maven artifacts
PHP packages
Go Modules
Debian packages
RPM packages
NuGet packages
showbox-public / ffmpeg-doc deb
Repository URL to install this package:
|
Version:
7:2.7.1-1ubuntu2 ▾
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>FFmpeg: Frame parsing</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">FFmpeg
 <span id="projectnumber">2.7.1</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- Generated by Doxygen 1.7.6.1 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="annotated.html"><span>Data Structures</span></a></li>
<li><a href="files.html"><span>Files</span></a></li>
<li><a href="examples.html"><span>Examples</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
</div>
<div class="header">
<div class="summary">
<a href="#nested-classes">Data Structures</a> |
<a href="#enum-members">Enumerations</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">Frame parsing</div> </div>
<div class="ingroups"><a class="el" href="group__lavc__decoding.html">Decoding</a></div></div><!--header-->
<div class="contents">
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVCodecParser.html">AVCodecParser</a></td></tr>
<tr><td colspan="2"><h2><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#gaad2e1cb6faa858b3558c5182d3ec56aa">AVPictureStructure</a> { <a class="el" href="group__lavc__parsing.html#ggaad2e1cb6faa858b3558c5182d3ec56aaa88e5d6e12b558d4d015fa2b3b043cb91">AV_PICTURE_STRUCTURE_UNKNOWN</a>,
<a class="el" href="group__lavc__parsing.html#ggaad2e1cb6faa858b3558c5182d3ec56aaa86a376b542e532a5f2be40b56a79f161">AV_PICTURE_STRUCTURE_TOP_FIELD</a>,
<a class="el" href="group__lavc__parsing.html#ggaad2e1cb6faa858b3558c5182d3ec56aaa6d82ada133fd9cff3e9577a2134dba5b">AV_PICTURE_STRUCTURE_BOTTOM_FIELD</a>,
<a class="el" href="group__lavc__parsing.html#ggaad2e1cb6faa858b3558c5182d3ec56aaa1b90bcaf885c0721b70702a14fec481c">AV_PICTURE_STRUCTURE_FRAME</a>
}</td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structAVCodecParser.html">AVCodecParser</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga64772040a370fa3a7d67ec46d73566c8">av_parser_next</a> (const <a class="el" href="structAVCodecParser.html">AVCodecParser</a> *c)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga8258374e31b0afe2d6f7ecf9a34c4810">av_register_codec_parser</a> (<a class="el" href="structAVCodecParser.html">AVCodecParser</a> *parser)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga0dd9af605377fcbb49fffd982672d377">av_parser_init</a> (int codec_id)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga691ca0258e91f99297e7726f56d8c247">av_parser_parse2</a> (<a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> *s, <a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t <a class="el" href="transcode__aac_8c.html#a4fbb704fb96c36a78a36eee010306ce7">pts</a>, int64_t dts, int64_t pos)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Parse a packet. <a href="#ga691ca0258e91f99297e7726f56d8c247"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga388e291a22ce1908b932a39c87123756">av_parser_change</a> (<a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> *s, <a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__lavc__parsing.html#ga325e84c53b8c0dfcb2d933d126f76dd7">av_parser_close</a> (<a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> *s)</td></tr>
</table>
<hr/><h2>Enumeration Type Documentation</h2>
<a class="anchor" id="gaad2e1cb6faa858b3558c5182d3ec56aa"></a><!-- doxytag: member="avcodec.h::AVPictureStructure" ref="gaad2e1cb6faa858b3558c5182d3ec56aa" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="group__lavc__parsing.html#gaad2e1cb6faa858b3558c5182d3ec56aa">AVPictureStructure</a></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="ggaad2e1cb6faa858b3558c5182d3ec56aaa88e5d6e12b558d4d015fa2b3b043cb91"></a><!-- doxytag: member="AV_PICTURE_STRUCTURE_UNKNOWN" ref="ggaad2e1cb6faa858b3558c5182d3ec56aaa88e5d6e12b558d4d015fa2b3b043cb91" args="" -->AV_PICTURE_STRUCTURE_UNKNOWN</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ggaad2e1cb6faa858b3558c5182d3ec56aaa86a376b542e532a5f2be40b56a79f161"></a><!-- doxytag: member="AV_PICTURE_STRUCTURE_TOP_FIELD" ref="ggaad2e1cb6faa858b3558c5182d3ec56aaa86a376b542e532a5f2be40b56a79f161" args="" -->AV_PICTURE_STRUCTURE_TOP_FIELD</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ggaad2e1cb6faa858b3558c5182d3ec56aaa6d82ada133fd9cff3e9577a2134dba5b"></a><!-- doxytag: member="AV_PICTURE_STRUCTURE_BOTTOM_FIELD" ref="ggaad2e1cb6faa858b3558c5182d3ec56aaa6d82ada133fd9cff3e9577a2134dba5b" args="" -->AV_PICTURE_STRUCTURE_BOTTOM_FIELD</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ggaad2e1cb6faa858b3558c5182d3ec56aaa1b90bcaf885c0721b70702a14fec481c"></a><!-- doxytag: member="AV_PICTURE_STRUCTURE_FRAME" ref="ggaad2e1cb6faa858b3558c5182d3ec56aaa1b90bcaf885c0721b70702a14fec481c" args="" -->AV_PICTURE_STRUCTURE_FRAME</em> </td><td>
</td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="libavcodec_2avcodec_8h_source.html#l04239">4239</a> of file <a class="el" href="libavcodec_2avcodec_8h_source.html">avcodec.h</a>.</p>
</div>
</div>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga64772040a370fa3a7d67ec46d73566c8"></a><!-- doxytag: member="avcodec.h::av_parser_next" ref="ga64772040a370fa3a7d67ec46d73566c8" args="(const AVCodecParser *c)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structAVCodecParser.html">AVCodecParser</a>* <a class="el" href="group__lavc__parsing.html#ga64772040a370fa3a7d67ec46d73566c8">av_parser_next</a> </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structAVCodecParser.html">AVCodecParser</a> * </td>
<td class="paramname"><em>c</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga8258374e31b0afe2d6f7ecf9a34c4810"></a><!-- doxytag: member="avcodec.h::av_register_codec_parser" ref="ga8258374e31b0afe2d6f7ecf9a34c4810" args="(AVCodecParser *parser)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__lavc__parsing.html#ga8258374e31b0afe2d6f7ecf9a34c4810">av_register_codec_parser</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecParser.html">AVCodecParser</a> * </td>
<td class="paramname"><em>parser</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga0dd9af605377fcbb49fffd982672d377"></a><!-- doxytag: member="avcodec.h::av_parser_init" ref="ga0dd9af605377fcbb49fffd982672d377" args="(int codec_id)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a>* <a class="el" href="group__lavc__parsing.html#ga0dd9af605377fcbb49fffd982672d377">av_parser_init</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>codec_id</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="ga691ca0258e91f99297e7726f56d8c247"></a><!-- doxytag: member="avcodec.h::av_parser_parse2" ref="ga691ca0258e91f99297e7726f56d8c247" args="(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts, int64_t pos)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int <a class="el" href="group__lavc__parsing.html#ga691ca0258e91f99297e7726f56d8c247">av_parser_parse2</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> * </td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>avctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t ** </td>
<td class="paramname"><em>poutbuf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>poutbuf_size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>buf_size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t </td>
<td class="paramname"><em>pts</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t </td>
<td class="paramname"><em>dts</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t </td>
<td class="paramname"><em>pos</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Parse a packet. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>parser context. </td></tr>
<tr><td class="paramname">avctx</td><td>codec context. </td></tr>
<tr><td class="paramname">poutbuf</td><td>set to pointer to parsed buffer or NULL if not yet finished. </td></tr>
<tr><td class="paramname">poutbuf_size</td><td>set to size of parsed buffer or zero if not yet finished. </td></tr>
<tr><td class="paramname">buf</td><td>input buffer. </td></tr>
<tr><td class="paramname">buf_size</td><td>input length, to signal EOF, this should be 0 (so that the last frame can be output). </td></tr>
<tr><td class="paramname">pts</td><td>input presentation timestamp. </td></tr>
<tr><td class="paramname">dts</td><td>input decoding timestamp. </td></tr>
<tr><td class="paramname">pos</td><td>input byte position in stream. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>the number of bytes of the input bitstream used.</dd></dl>
<p>Example: </p>
<div class="fragment"><pre class="fragment"> <span class="keywordflow">while</span>(in_len){
len = <a class="code" href="group__lavc__parsing.html#ga691ca0258e91f99297e7726f56d8c247" title="Parse a packet.">av_parser_parse2</a>(myparser, <a class="code" href="structAVCodecContext.html" title="main external API structure.">AVCodecContext</a>, &data, &size,
in_data, in_len,
<a class="code" href="transcode__aac_8c.html#a4fbb704fb96c36a78a36eee010306ce7" title="Global timestamp for the audio frames.">pts</a>, dts, pos);
in_data += len;
in_len -= len;
<span class="keywordflow">if</span>(size)
decode_frame(data, size);
}
</pre></div>
</div>
</div>
<a class="anchor" id="ga388e291a22ce1908b932a39c87123756"></a><!-- doxytag: member="avcodec.h::av_parser_change" ref="ga388e291a22ce1908b932a39c87123756" args="(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int <a class="el" href="group__lavc__parsing.html#ga388e291a22ce1908b932a39c87123756">av_parser_change</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> * </td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>avctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t ** </td>
<td class="paramname"><em>poutbuf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>poutbuf_size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint8_t * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>buf_size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>keyframe</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed </dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000017">Deprecated:</a></b></dt><dd>use <a class="el" href="structAVBitStreamFilter.html">AVBitStreamFilter</a> </dd></dl>
</div>
</div>
<a class="anchor" id="ga325e84c53b8c0dfcb2d933d126f76dd7"></a><!-- doxytag: member="avcodec.h::av_parser_close" ref="ga325e84c53b8c0dfcb2d933d126f76dd7" args="(AVCodecParserContext *s)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void <a class="el" href="group__lavc__parsing.html#ga325e84c53b8c0dfcb2d933d126f76dd7">av_parser_close</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVCodecParserContext.html">AVCodecParserContext</a> * </td>
<td class="paramname"><em>s</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
</div><!-- contents -->
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Defines</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<hr class="footer"/><address class="footer"><small>
Generated by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.7.6.1
</small></address>
</body>
</html>