<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Audaspace: ffmpeg/FFMPEGReader.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Audaspace  <span id="projectnumber">1.3.0</span> </div> <div id="projectbrief">A high level audio library.</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ var searchBox = new SearchBox("searchBox", "search",false,'Search'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */</script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </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> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_f53420cbb3587c1aee7123f1754f1105.html">ffmpeg</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">FFMPEGReader.h</div> </div> </div><!--header--> <div class="contents"> <a href="FFMPEGReader_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright 2009-2016 Jörg Müller</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * You may obtain a copy of the License at</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * limitations under the License.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ******************************************************************************/</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifdef FFMPEG_PLUGIN</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define AUD_BUILD_PLUGIN</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="ConverterFunctions_8h.html">respec/ConverterFunctions.h</a>"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="IReader_8h.html">IReader.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="Buffer_8h.html">util/Buffer.h</a>"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">struct </span>AVCodecContext;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <libavformat/avformat.h></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <a class="code" href="Audaspace_8h.html#acd7584504197a1397aaf57af797e1813">AUD_NAMESPACE_BEGIN</a></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classFFMPEGReader.html"> 49</a></span> <span class="keyword">class </span><a class="code" href="Audaspace_8h.html#ae80c5c0f6ce55934dfa1823d908fa25f">AUD_PLUGIN_API</a> <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a> : <span class="keyword">public</span> <a class="code" href="classIReader.html">IReader</a></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">int</span> m_position;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="structDeviceSpecs.html">DeviceSpecs</a> m_specs;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classBuffer.html">Buffer</a> m_pkgbuf;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">int</span> m_pkgbuf_left;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  AVFormatContext* m_formatCtx;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  AVCodecContext* m_codecCtx;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  AVFrame* m_frame;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  AVIOContext* m_aviocontext;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">int</span> m_stream;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="ConverterFunctions_8h.html#a41110c0f525b0511ec00d4e6559b7662">convert_f</a> m_convert;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  std::shared_ptr<Buffer> m_membuffer;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="Audaspace_8h.html#ae91c9d70e1e2c8b657e51de1fff60ada">data_t</a>* m_membuf;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  int64_t m_membufferpos;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">bool</span> m_tointerleave;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="Audaspace_8h.html#acd0b288d4edf8e15c0221b416faa79c6">AUD_LOCAL</a> <span class="keywordtype">int</span> decode(AVPacket& packet, <a class="code" href="classBuffer.html">Buffer</a>& buffer);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="Audaspace_8h.html#acd0b288d4edf8e15c0221b416faa79c6">AUD_LOCAL</a> <span class="keywordtype">void</span> init();</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// delete copy constructor and operator=</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>(<span class="keyword">const</span> <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>& operator=(<span class="keyword">const</span> <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>(std::string filename);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>(std::shared_ptr<Buffer> buffer);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">virtual</span> ~<a class="code" href="classFFMPEGReader.html">FFMPEGReader</a>();</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">static</span> <span class="keywordtype">int</span> read_packet(<span class="keywordtype">void</span>* opaque, uint8_t* buf, <span class="keywordtype">int</span> buf_size);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">static</span> int64_t seek_packet(<span class="keywordtype">void</span>* opaque, int64_t offset, <span class="keywordtype">int</span> whence);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classIReader.html#acf13bbdc14e680c21122981f7d3bf6be">isSeekable</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classIReader.html#ad9fc74bb6f4c2b1ecc0f75b7118c1458">seek</a>(<span class="keywordtype">int</span> position);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classIReader.html#a384465b5d988cc802702ae4bdc56ea85">getLength</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classIReader.html#a47a8f86fd242a02ff626eb506cdb319d">getPosition</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">virtual</span> <a class="code" href="structSpecs.html">Specs</a> <a class="code" href="classIReader.html#aac4f3a14d42e5c4280488db98dd771b1">getSpecs</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classIReader.html#aef6fa21dfb71d3065fb14517bf0f24d5">read</a>(<span class="keywordtype">int</span>& length, <span class="keywordtype">bool</span>& eos, <a class="code" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a>* buffer);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> };</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <a class="code" href="Audaspace_8h.html#a4cf7088a9bb0256563f28fd13c80b066">AUD_NAMESPACE_END</a></div><div class="ttc" id="classIReader_html_a384465b5d988cc802702ae4bdc56ea85"><div class="ttname"><a href="classIReader.html#a384465b5d988cc802702ae4bdc56ea85">IReader::getLength</a></div><div class="ttdeci">virtual int getLength() const =0</div><div class="ttdoc">Returns an approximated length of the source in samples.</div></div> <div class="ttc" id="Audaspace_8h_html_acd7584504197a1397aaf57af797e1813"><div class="ttname"><a href="Audaspace_8h.html#acd7584504197a1397aaf57af797e1813">AUD_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define AUD_NAMESPACE_BEGIN</div><div class="ttdoc">Opens the audaspace namespace aud.</div><div class="ttdef"><b>Definition:</b> Audaspace.h:116</div></div> <div class="ttc" id="classIReader_html"><div class="ttname"><a href="classIReader.html">IReader</a></div><div class="ttdoc">This class represents a sound source as stream or as buffer which can be read for example by another ...</div><div class="ttdef"><b>Definition:</b> IReader.h:34</div></div> <div class="ttc" id="classIReader_html_ad9fc74bb6f4c2b1ecc0f75b7118c1458"><div class="ttname"><a href="classIReader.html#ad9fc74bb6f4c2b1ecc0f75b7118c1458">IReader::seek</a></div><div class="ttdeci">virtual void seek(int position)=0</div><div class="ttdoc">Seeks to a specific position in the source.</div></div> <div class="ttc" id="ConverterFunctions_8h_html_a41110c0f525b0511ec00d4e6559b7662"><div class="ttname"><a href="ConverterFunctions_8h.html#a41110c0f525b0511ec00d4e6559b7662">convert_f</a></div><div class="ttdeci">void(* convert_f)(data_t *target, data_t *source, int length)</div><div class="ttdoc">The function template for functions converting from one sample format to another, having the same par...</div><div class="ttdef"><b>Definition:</b> ConverterFunctions.h:35</div></div> <div class="ttc" id="classIReader_html_aef6fa21dfb71d3065fb14517bf0f24d5"><div class="ttname"><a href="classIReader.html#aef6fa21dfb71d3065fb14517bf0f24d5">IReader::read</a></div><div class="ttdeci">virtual void read(int &length, bool &eos, sample_t *buffer)=0</div><div class="ttdoc">Request to read the next length samples out of the source.</div></div> <div class="ttc" id="Audaspace_8h_html_ae91c9d70e1e2c8b657e51de1fff60ada"><div class="ttname"><a href="Audaspace_8h.html#ae91c9d70e1e2c8b657e51de1fff60ada">data_t</a></div><div class="ttdeci">unsigned char data_t</div><div class="ttdoc">Sample data type (format samples)</div><div class="ttdef"><b>Definition:</b> Audaspace.h:129</div></div> <div class="ttc" id="structSpecs_html"><div class="ttname"><a href="structSpecs.html">Specs</a></div><div class="ttdoc">Specification of a sound source.</div><div class="ttdef"><b>Definition:</b> Specification.h:109</div></div> <div class="ttc" id="classFFMPEGReader_html"><div class="ttname"><a href="classFFMPEGReader.html">FFMPEGReader</a></div><div class="ttdoc">This class reads a sound file via ffmpeg.</div><div class="ttdef"><b>Definition:</b> FFMPEGReader.h:49</div></div> <div class="ttc" id="classBuffer_html"><div class="ttname"><a href="classBuffer.html">Buffer</a></div><div class="ttdoc">This class is a simple buffer in RAM which is 32 Byte aligned and provides resize functionality.</div><div class="ttdef"><b>Definition:</b> Buffer.h:33</div></div> <div class="ttc" id="structDeviceSpecs_html"><div class="ttname"><a href="structDeviceSpecs.html">DeviceSpecs</a></div><div class="ttdoc">Specification of a sound device.</div><div class="ttdef"><b>Definition:</b> Specification.h:119</div></div> <div class="ttc" id="classIReader_html_aac4f3a14d42e5c4280488db98dd771b1"><div class="ttname"><a href="classIReader.html#aac4f3a14d42e5c4280488db98dd771b1">IReader::getSpecs</a></div><div class="ttdeci">virtual Specs getSpecs() const =0</div><div class="ttdoc">Returns the specification of the reader.</div></div> <div class="ttc" id="IReader_8h_html"><div class="ttname"><a href="IReader_8h.html">IReader.h</a></div><div class="ttdoc">The IReader interface.</div></div> <div class="ttc" id="ConverterFunctions_8h_html"><div class="ttname"><a href="ConverterFunctions_8h.html">ConverterFunctions.h</a></div><div class="ttdoc">Defines several conversion functions between different sample formats.</div></div> <div class="ttc" id="Audaspace_8h_html_aa0798f7ea0975b143a1d9deac8c05d43"><div class="ttname"><a href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a></div><div class="ttdeci">float sample_t</div><div class="ttdoc">Sample type.(float samples)</div><div class="ttdef"><b>Definition:</b> Audaspace.h:126</div></div> <div class="ttc" id="Audaspace_8h_html_a4cf7088a9bb0256563f28fd13c80b066"><div class="ttname"><a href="Audaspace_8h.html#a4cf7088a9bb0256563f28fd13c80b066">AUD_NAMESPACE_END</a></div><div class="ttdeci">#define AUD_NAMESPACE_END</div><div class="ttdoc">Closes the audaspace namespace aud.</div><div class="ttdef"><b>Definition:</b> Audaspace.h:119</div></div> <div class="ttc" id="classIReader_html_a47a8f86fd242a02ff626eb506cdb319d"><div class="ttname"><a href="classIReader.html#a47a8f86fd242a02ff626eb506cdb319d">IReader::getPosition</a></div><div class="ttdeci">virtual int getPosition() const =0</div><div class="ttdoc">Returns the position of the source as a sample count value.</div></div> <div class="ttc" id="Audaspace_8h_html_ae80c5c0f6ce55934dfa1823d908fa25f"><div class="ttname"><a href="Audaspace_8h.html#ae80c5c0f6ce55934dfa1823d908fa25f">AUD_PLUGIN_API</a></div><div class="ttdeci">#define AUD_PLUGIN_API</div><div class="ttdoc">Used for exporting symbols in the shared library.</div><div class="ttdef"><b>Definition:</b> Audaspace.h:94</div></div> <div class="ttc" id="classIReader_html_acf13bbdc14e680c21122981f7d3bf6be"><div class="ttname"><a href="classIReader.html#acf13bbdc14e680c21122981f7d3bf6be">IReader::isSeekable</a></div><div class="ttdeci">virtual bool isSeekable() const =0</div><div class="ttdoc">Tells whether the source provides seeking functionality or not.</div></div> <div class="ttc" id="Audaspace_8h_html_acd0b288d4edf8e15c0221b416faa79c6"><div class="ttname"><a href="Audaspace_8h.html#acd0b288d4edf8e15c0221b416faa79c6">AUD_LOCAL</a></div><div class="ttdeci">#define AUD_LOCAL</div><div class="ttdoc">Used for hiding symbols from export in the shared library.</div><div class="ttdef"><b>Definition:</b> Audaspace.h:80</div></div> <div class="ttc" id="Buffer_8h_html"><div class="ttname"><a href="Buffer_8h.html">Buffer.h</a></div><div class="ttdoc">The Buffer class.</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <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> 1.8.15 </small></address> </body> </html>