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<a href="#nested-classes">Data Structures</a> |
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<div class="title">doc/examples/transcoding.c File Reference</div> </div>
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<p>API example for demuxing, decoding, filtering, encoding and muxing.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <<a class="el" href="libavcodec_2avcodec_8h_source.html">libavcodec/avcodec.h</a>></code><br/>
<code>#include <<a class="el" href="avformat_8h_source.html">libavformat/avformat.h</a>></code><br/>
<code>#include <<a class="el" href="avfiltergraph_8h_source.html">libavfilter/avfiltergraph.h</a>></code><br/>
<code>#include <<a class="el" href="libavfilter_2avcodec_8h_source.html">libavfilter/avcodec.h</a>></code><br/>
<code>#include <<a class="el" href="buffersink_8h_source.html">libavfilter/buffersink.h</a>></code><br/>
<code>#include <<a class="el" href="buffersrc_8h_source.html">libavfilter/buffersrc.h</a>></code><br/>
<code>#include <<a class="el" href="opt_8h_source.html">libavutil/opt.h</a>></code><br/>
<code>#include <<a class="el" href="pixdesc_8h_source.html">libavutil/pixdesc.h</a>></code><br/>
</div>
<p><a href="transcoding_8c_source.html">Go to the source code of this file.</a></p>
<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="structFilteringContext.html">FilteringContext</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">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#abd04bf1a933d4d2698482f4949c61fed">open_input_file</a> (const char *filename)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#ab6c33edf9a42e2f71594a7cdc6276407">open_output_file</a> (const char *filename)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#a54ad76df48ef886861a2f12bc7a9e7e4">init_filter</a> (<a class="el" href="structFilteringContext.html">FilteringContext</a> *fctx, <a class="el" href="structAVCodecContext.html">AVCodecContext</a> *<a class="el" href="filtering__video_8c.html#ac2bf6798f37e95d3d2ff2d44e4ab3c12">dec_ctx</a>, <a class="el" href="structAVCodecContext.html">AVCodecContext</a> *enc_ctx, const char *filter_spec)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#a05c93a3c60f2fc12e3fb7884be1128d6">init_filters</a> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#afb371e273a9d2e9cc0539a6453913533">encode_write_frame</a> (<a class="el" href="structAVFrame.html">AVFrame</a> *filt_frame, unsigned int stream_index, int *got_frame)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#a255192428438daf73b9f8060c0815712">filter_encode_write_frame</a> (<a class="el" href="structAVFrame.html">AVFrame</a> *<a class="el" href="extract__mvs_8c.html#ad7d33d579a8d4241a5e643e39287a209">frame</a>, unsigned int stream_index)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#ad55ba3d9c6ebe490eb8766a91b627d3e">flush_encoder</a> (unsigned int stream_index)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a> (int argc, char **argv)</td></tr>
<tr><td colspan="2"><h2><a name="var-members"></a>
Variables</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="el" href="structAVFormatContext.html">AVFormatContext</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#a24170971d926c1359c289f2515dec3d7">ifmt_ctx</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="el" href="structAVFormatContext.html">AVFormatContext</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#aad50129a22f90b00b5d5cc7551175093">ofmt_ctx</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="el" href="structFilteringContext.html">FilteringContext</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="transcoding_8c.html#aac21c1c8f68cdafd001a6a13dc4d7fb7">filter_ctx</a></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>API example for demuxing, decoding, filtering, encoding and muxing. </p>
<p>Definition in file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
</div><hr/><h2>Function Documentation</h2>
<a class="anchor" id="abd04bf1a933d4d2698482f4949c61fed"></a><!-- doxytag: member="transcoding.c::open_input_file" ref="abd04bf1a933d4d2698482f4949c61fed" args="(const char *filename)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#abd04bf1a933d4d2698482f4949c61fed">open_input_file</a> </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>filename</em></td><td>)</td>
<td><code> [static]</code></td>
</tr>
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<div class="memdoc">
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00049">49</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00466">main()</a>.</p>
</div>
</div>
<a class="anchor" id="ab6c33edf9a42e2f71594a7cdc6276407"></a><!-- doxytag: member="transcoding.c::open_output_file" ref="ab6c33edf9a42e2f71594a7cdc6276407" args="(const char *filename)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#ab6c33edf9a42e2f71594a7cdc6276407">open_output_file</a> </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>filename</em></td><td>)</td>
<td><code> [static]</code></td>
</tr>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00087">87</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00466">main()</a>.</p>
</div>
</div>
<a class="anchor" id="a54ad76df48ef886861a2f12bc7a9e7e4"></a><!-- doxytag: member="transcoding.c::init_filter" ref="a54ad76df48ef886861a2f12bc7a9e7e4" args="(FilteringContext *fctx, AVCodecContext *dec_ctx, AVCodecContext *enc_ctx, const char *filter_spec)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#a54ad76df48ef886861a2f12bc7a9e7e4">init_filter</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structFilteringContext.html">FilteringContext</a> * </td>
<td class="paramname"><em>fctx</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>dec_ctx</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structAVCodecContext.html">AVCodecContext</a> * </td>
<td class="paramname"><em>enc_ctx</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>filter_spec</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td><code> [static]</code></td>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="transcoding_8c-example.html#a61">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00187">187</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00336">init_filters()</a>.</p>
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</div>
<a class="anchor" id="a05c93a3c60f2fc12e3fb7884be1128d6"></a><!-- doxytag: member="transcoding.c::init_filters" ref="a05c93a3c60f2fc12e3fb7884be1128d6" args="(void)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#a05c93a3c60f2fc12e3fb7884be1128d6">init_filters</a> </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td><code> [static]</code></td>
</tr>
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<div class="memdoc">
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00336">336</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00466">main()</a>.</p>
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</div>
<a class="anchor" id="afb371e273a9d2e9cc0539a6453913533"></a><!-- doxytag: member="transcoding.c::encode_write_frame" ref="afb371e273a9d2e9cc0539a6453913533" args="(AVFrame *filt_frame, unsigned int stream_index, int *got_frame)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#afb371e273a9d2e9cc0539a6453913533">encode_write_frame</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVFrame.html">AVFrame</a> * </td>
<td class="paramname"><em>filt_frame</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>stream_index</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>got_frame</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td><code> [static]</code></td>
</tr>
</table>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="transcoding_8c-example.html#a88">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00366">366</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00402">filter_encode_write_frame()</a>, and <a class="el" href="transcoding_8c_source.html#l00446">flush_encoder()</a>.</p>
</div>
</div>
<a class="anchor" id="a255192428438daf73b9f8060c0815712"></a><!-- doxytag: member="transcoding.c::filter_encode_write_frame" ref="a255192428438daf73b9f8060c0815712" args="(AVFrame *frame, unsigned int stream_index)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#a255192428438daf73b9f8060c0815712">filter_encode_write_frame</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structAVFrame.html">AVFrame</a> * </td>
<td class="paramname"><em>frame</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>stream_index</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td><code> [static]</code></td>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="transcoding_8c-example.html#a103">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00402">402</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00466">main()</a>.</p>
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</div>
<a class="anchor" id="ad55ba3d9c6ebe490eb8766a91b627d3e"></a><!-- doxytag: member="transcoding.c::flush_encoder" ref="ad55ba3d9c6ebe490eb8766a91b627d3e" args="(unsigned int stream_index)" -->
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<td class="memname">static int <a class="el" href="transcoding_8c.html#ad55ba3d9c6ebe490eb8766a91b627d3e">flush_encoder</a> </td>
<td>(</td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>stream_index</em></td><td>)</td>
<td><code> [static]</code></td>
</tr>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="transcoding_8c-example.html#a111">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00446">446</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="transcoding_8c_source.html#l00466">main()</a>.</p>
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</div>
<a class="anchor" id="a3c04138a5bfe5d72780bb7e82a18e627"></a><!-- doxytag: member="transcoding.c::main" ref="a3c04138a5bfe5d72780bb7e82a18e627" args="(int argc, char **argv)" -->
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<td class="memname">int <a class="el" href="transcoding_8c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>argc</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>argv</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<div class="memdoc">
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00466">466</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
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<hr/><h2>Variable Documentation</h2>
<a class="anchor" id="a24170971d926c1359c289f2515dec3d7"></a><!-- doxytag: member="transcoding.c::ifmt_ctx" ref="a24170971d926c1359c289f2515dec3d7" args="" -->
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<td class="memname"><a class="el" href="structAVFormatContext.html">AVFormatContext</a>* <a class="el" href="transcoding_8c.html#a24170971d926c1359c289f2515dec3d7">ifmt_ctx</a><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="remuxing_8c-example.html#a16">remuxing.c</a>, and <a class="el" href="transcoding_8c-example.html#a1">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00040">40</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="remuxing_8c_source.html#l00046">main()</a>.</p>
</div>
</div>
<a class="anchor" id="aad50129a22f90b00b5d5cc7551175093"></a><!-- doxytag: member="transcoding.c::ofmt_ctx" ref="aad50129a22f90b00b5d5cc7551175093" args="" -->
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<td class="memname"><a class="el" href="structAVFormatContext.html">AVFormatContext</a>* <a class="el" href="transcoding_8c.html#aad50129a22f90b00b5d5cc7551175093">ofmt_ctx</a><code> [static]</code></td>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="remuxing_8c-example.html#a17">remuxing.c</a>, and <a class="el" href="transcoding_8c-example.html#a2">transcoding.c</a>.</dd>
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<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00041">41</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
<p>Referenced by <a class="el" href="remuxing_8c_source.html#l00046">main()</a>.</p>
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<a class="anchor" id="aac21c1c8f68cdafd001a6a13dc4d7fb7"></a><!-- doxytag: member="transcoding.c::filter_ctx" ref="aac21c1c8f68cdafd001a6a13dc4d7fb7" args="" -->
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<td class="memname"><a class="el" href="structFilteringContext.html">FilteringContext</a>* <a class="el" href="transcoding_8c.html#aac21c1c8f68cdafd001a6a13dc4d7fb7">filter_ctx</a><code> [static]</code></td>
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<div class="memdoc">
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="transcoding_8c-example.html#a9">transcoding.c</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="transcoding_8c_source.html#l00047">47</a> of file <a class="el" href="transcoding_8c_source.html">transcoding.c</a>.</p>
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