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<p>libavcodec API use example.  
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;math.h&gt;</code><br/>
<code>#include &lt;<a class="el" href="opt_8h_source.html">libavutil/opt.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="avcodec_8h_source.html">libavcodec/avcodec.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="channel__layout_8h_source.html">libavutil/channel_layout.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="common_8h_source.html">libavutil/common.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="imgutils_8h_source.html">libavutil/imgutils.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="mathematics_8h_source.html">libavutil/mathematics.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="samplefmt_8h_source.html">libavutil/samplefmt.h</a>&gt;</code><br/>
</div>
<p><a href="decoding__encoding_8c_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
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Macros</h2></td></tr>
<tr class="memitem:a6378f14810330164b7fb66f3334b2a27"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a6378f14810330164b7fb66f3334b2a27">INBUF_SIZE</a>&#160;&#160;&#160;4096</td></tr>
<tr class="separator:a6378f14810330164b7fb66f3334b2a27"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3a513b5612784dd20c0dfbdf456abd01"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a3a513b5612784dd20c0dfbdf456abd01">AUDIO_INBUF_SIZE</a>&#160;&#160;&#160;20480</td></tr>
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<tr class="memitem:aebbadad5d16117f57006e8358ebf1ccc"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#aebbadad5d16117f57006e8358ebf1ccc">AUDIO_REFILL_THRESH</a>&#160;&#160;&#160;4096</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a93df45821682fdbabbc0092abff0bd61"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a93df45821682fdbabbc0092abff0bd61">check_sample_fmt</a> (<a class="el" href="structAVCodec.html">AVCodec</a> *codec, enum <a class="el" href="group__lavu__sampfmts.html#gaf9a51ca15301871723577c730b5865c5">AVSampleFormat</a> sample_fmt)</td></tr>
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<tr class="memitem:a5809ff9edcce25b26466e3c806bf9854"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a5809ff9edcce25b26466e3c806bf9854">select_sample_rate</a> (<a class="el" href="structAVCodec.html">AVCodec</a> *codec)</td></tr>
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<tr class="memitem:ae6bb0fc8f05c78c13e9d38605038d994"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#ae6bb0fc8f05c78c13e9d38605038d994">select_channel_layout</a> (<a class="el" href="structAVCodec.html">AVCodec</a> *codec)</td></tr>
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<tr class="memitem:a67ded2b27004b72c27d4f3500a578ff6"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a67ded2b27004b72c27d4f3500a578ff6">audio_encode_example</a> (const char *filename)</td></tr>
<tr class="separator:a67ded2b27004b72c27d4f3500a578ff6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5cbf8bd3441619622d3956d623d944b3"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a5cbf8bd3441619622d3956d623d944b3">audio_decode_example</a> (const char *outfilename, const char *filename)</td></tr>
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<tr class="memitem:a7293f14f6e6315d54331137ae883079f"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a7293f14f6e6315d54331137ae883079f">video_encode_example</a> (const char *filename, int codec_id)</td></tr>
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<tr class="memitem:aea973224783a5595366684c76c0ee06c"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#aea973224783a5595366684c76c0ee06c">pgm_save</a> (unsigned char *buf, int wrap, int xsize, int ysize, char *filename)</td></tr>
<tr class="separator:aea973224783a5595366684c76c0ee06c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1d01e17e5817622d9419f681603f6c8f"><td class="memItemLeft" align="right" valign="top">static int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a1d01e17e5817622d9419f681603f6c8f">decode_write_frame</a> (const char *outfilename, <a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, <a class="el" href="structAVFrame.html">AVFrame</a> *<a class="el" href="extract__mvs_8c.html#ad7d33d579a8d4241a5e643e39287a209">frame</a>, int *frame_count, <a class="el" href="structAVPacket.html">AVPacket</a> *<a class="el" href="extract__mvs_8c.html#a3d4c6562f0b27cf0cacbbea5c038c090">pkt</a>, int last)</td></tr>
<tr class="separator:a1d01e17e5817622d9419f681603f6c8f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b416e073a13f42326e97a86ce283db1"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a8b416e073a13f42326e97a86ce283db1">video_decode_example</a> (const char *outfilename, const char *filename)</td></tr>
<tr class="separator:a8b416e073a13f42326e97a86ce283db1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3c04138a5bfe5d72780bb7e82a18e627"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="decoding__encoding_8c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a> (int argc, char **argv)</td></tr>
<tr class="separator:a3c04138a5bfe5d72780bb7e82a18e627"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>libavcodec API use example. </p>

<p>Definition in file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="a6378f14810330164b7fb66f3334b2a27"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define INBUF_SIZE&#160;&#160;&#160;4096</td>
        </tr>
      </table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a79">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00043">43</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00534">video_decode_example()</a>.</p>

</div>
</div>
<a class="anchor" id="a3a513b5612784dd20c0dfbdf456abd01"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define AUDIO_INBUF_SIZE&#160;&#160;&#160;20480</td>
        </tr>
      </table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a47">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00044">44</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00242">audio_decode_example()</a>.</p>

</div>
</div>
<a class="anchor" id="aebbadad5d16117f57006e8358ebf1ccc"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define AUDIO_REFILL_THRESH&#160;&#160;&#160;4096</td>
        </tr>
      </table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a56">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00045">45</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00242">audio_decode_example()</a>.</p>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a93df45821682fdbabbc0092abff0bd61"></a>
<div class="memitem">
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          <td class="memname">static int check_sample_fmt </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structAVCodec.html">AVCodec</a> *&#160;</td>
          <td class="paramname"><em>codec</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">enum <a class="el" href="group__lavu__sampfmts.html#gaf9a51ca15301871723577c730b5865c5">AVSampleFormat</a>&#160;</td>
          <td class="paramname"><em>sample_fmt</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a0">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00048">48</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00103">audio_encode_example()</a>.</p>

</div>
</div>
<a class="anchor" id="a5809ff9edcce25b26466e3c806bf9854"></a>
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          <td class="memname">static int select_sample_rate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structAVCodec.html">AVCodec</a> *&#160;</td>
          <td class="paramname"><em>codec</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a4">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00061">61</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00103">audio_encode_example()</a>.</p>

</div>
</div>
<a class="anchor" id="ae6bb0fc8f05c78c13e9d38605038d994"></a>
<div class="memitem">
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          <td class="memname">static int select_channel_layout </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structAVCodec.html">AVCodec</a> *&#160;</td>
          <td class="paramname"><em>codec</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span>  </td>
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</table>
</div><div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a7">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00078">78</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00103">audio_encode_example()</a>.</p>

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</div>
<a class="anchor" id="a67ded2b27004b72c27d4f3500a578ff6"></a>
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          <td class="memname">static void audio_encode_example </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em></td><td>)</td>
          <td></td>
        </tr>
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<span class="mlabels"><span class="mlabel">static</span></span>  </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a11">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00103">103</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00631">main()</a>.</p>

</div>
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<a class="anchor" id="a5cbf8bd3441619622d3956d623d944b3"></a>
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          <td class="memname">static void audio_decode_example </td>
          <td>(</td>
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          <td class="paramname"><em>outfilename</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em>&#160;</td>
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        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<span class="mlabels"><span class="mlabel">static</span></span>  </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a46">decoding_encoding.c</a>.</dd>
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<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00242">242</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00631">main()</a>.</p>

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          <td class="memname">static void video_encode_example </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>codec_id</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a57">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00347">347</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00631">main()</a>.</p>

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          <td class="memname">static void pgm_save </td>
          <td>(</td>
          <td class="paramtype">unsigned char *&#160;</td>
          <td class="paramname"><em>buf</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>wrap</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>xsize</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>ysize</em>, </td>
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          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>filename</em>&#160;</td>
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          <td>)</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a75">decoding_encoding.c</a>.</dd>
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<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00493">493</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00506">decode_write_frame()</a>.</p>

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          <td class="memname">static int decode_write_frame </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>outfilename</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> *&#160;</td>
          <td class="paramname"><em>avctx</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structAVFrame.html">AVFrame</a> *&#160;</td>
          <td class="paramname"><em>frame</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>frame_count</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structAVPacket.html">AVPacket</a> *&#160;</td>
          <td class="paramname"><em>pkt</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>last</em>&#160;</td>
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        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a76">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00506">506</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00534">video_decode_example()</a>.</p>

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          <td class="memname">static void video_decode_example </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>outfilename</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<span class="mlabels"><span class="mlabel">static</span></span>  </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a78">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00534">534</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

<p>Referenced by <a class="el" href="decoding__encoding_8c_source.html#l00631">main()</a>.</p>

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          <td class="memname">int main </td>
          <td>(</td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>argc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char **&#160;</td>
          <td class="paramname"><em>argv</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="decoding_encoding_8c-example.html#a85">decoding_encoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="decoding__encoding_8c_source.html#l00631">631</a> of file <a class="el" href="decoding__encoding_8c_source.html">decoding_encoding.c</a>.</p>

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