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<div class="title">remuxing.c</div> </div>
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<a href="remuxing_8c.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 (c) 2013 Stefano Sabatini</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"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * of this software and associated documentation files (the "Software"), to deal</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * THE SOFTWARE.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * @file</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * libavformat/libavcodec demuxing and muxing API example.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * Remux streams from one container format to another.</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * @example remuxing.c</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="timestamp_8h.html">libavutil/timestamp.h</a>></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="avformat_8h.html">libavformat/avformat.h</a>></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="remuxing_8c.html#ae9433a5041497371569e7f9a3c84a6e6"> 34</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="remuxing_8c.html#ae9433a5041497371569e7f9a3c84a6e6">log_packet</a>(<span class="keyword">const</span> <a class="code" href="structAVFormatContext.html">AVFormatContext</a> *<a class="code" href="demuxing__decoding_8c.html#a409462acdf7aebe5bfbe1bcd811efa5d">fmt_ctx</a>, <span class="keyword">const</span> <a class="code" href="structAVPacket.html">AVPacket</a> *<a class="code" href="demuxing__decoding_8c.html#a3d4c6562f0b27cf0cacbbea5c038c090">pkt</a>, <span class="keyword">const</span> <span class="keywordtype">char</span> *tag)</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>  <a class="code" href="structAVRational.html">AVRational</a> *time_base = &fmt_ctx-><a class="code" href="structAVFormatContext.html#acfefb6b6cf21e87a0dcbd1a547ba2348">streams</a>[pkt-><a class="code" href="structAVPacket.html#a0d1cb9b5a32b00fb6edc81ea3aae2a49">stream_index</a>]-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  printf(<span class="stringliteral">"%s: pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n"</span>,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  tag,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <a class="code" href="timestamp_8h.html#a86d797e907fa454ed5fd34bfb0bcd747">av_ts2str</a>(pkt-><a class="code" href="structAVPacket.html#a73bde0a37f3b1efc839f11295bfbf42a">pts</a>), <a class="code" href="timestamp_8h.html#ad344b91ede6b86fc0a530611293f42da">av_ts2timestr</a>(pkt-><a class="code" href="structAVPacket.html#a73bde0a37f3b1efc839f11295bfbf42a">pts</a>, time_base),</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="timestamp_8h.html#a86d797e907fa454ed5fd34bfb0bcd747">av_ts2str</a>(pkt-><a class="code" href="structAVPacket.html#a85dbbd306b44b02390cd91c45e6a0f76">dts</a>), <a class="code" href="timestamp_8h.html#ad344b91ede6b86fc0a530611293f42da">av_ts2timestr</a>(pkt-><a class="code" href="structAVPacket.html#a85dbbd306b44b02390cd91c45e6a0f76">dts</a>, time_base),</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="timestamp_8h.html#a86d797e907fa454ed5fd34bfb0bcd747">av_ts2str</a>(pkt-><a class="code" href="structAVPacket.html#a622e758be29fd500aed0ffdc069550f7">duration</a>), <a class="code" href="timestamp_8h.html#ad344b91ede6b86fc0a530611293f42da">av_ts2timestr</a>(pkt-><a class="code" href="structAVPacket.html#a622e758be29fd500aed0ffdc069550f7">duration</a>, time_base),</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  pkt-><a class="code" href="structAVPacket.html#a0d1cb9b5a32b00fb6edc81ea3aae2a49">stream_index</a>);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="remuxing_8c.html#a3c04138a5bfe5d72780bb7e82a18e627"> 46</a></span> <span class="keywordtype">int</span> <a class="code" href="remuxing_8c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="structAVOutputFormat.html">AVOutputFormat</a> *ofmt = NULL;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="structAVFormatContext.html">AVFormatContext</a> *<a class="code" href="transcoding_8c.html#a24170971d926c1359c289f2515dec3d7">ifmt_ctx</a> = NULL, *<a class="code" href="transcoding_8c.html#aad50129a22f90b00b5d5cc7551175093">ofmt_ctx</a> = NULL;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="structAVPacket.html">AVPacket</a> <a class="code" href="demuxing__decoding_8c.html#a3d4c6562f0b27cf0cacbbea5c038c090">pkt</a>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *in_filename, *out_filename;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">int</span> ret, i;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">if</span> (argc < 3) {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  printf(<span class="stringliteral">"usage: %s input output\n"</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="stringliteral">"API example program to remux a media file with libavformat and libavcodec.\n"</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="stringliteral">"The output format is guessed according to the file extension.\n"</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="stringliteral">"\n"</span>, argv[0]);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  in_filename = argv[1];</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  out_filename = argv[2];</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="group__lavf__core.html#ga917265caec45ef5a0646356ed1a507e3">av_register_all</a>();</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> ((ret = <a class="code" href="group__lavf__decoding.html#ga31d601155e9035d5b0e7efedc894ee49">avformat_open_input</a>(&ifmt_ctx, in_filename, 0, 0)) < 0) {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  fprintf(stderr, <span class="stringliteral">"Could not open input file '%s'"</span>, in_filename);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> ((ret = <a class="code" href="group__lavf__decoding.html#gad42172e27cddafb81096939783b157bb">avformat_find_stream_info</a>(ifmt_ctx, 0)) < 0) {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  fprintf(stderr, <span class="stringliteral">"Failed to retrieve input stream information"</span>);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="group__lavf__misc.html#gae2645941f2dc779c307eb6314fd39f10">av_dump_format</a>(ifmt_ctx, 0, in_filename, 0);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="avformat_8h.html#a6ddf3d982feb45fa5081420ee911f5d5">avformat_alloc_output_context2</a>(&ofmt_ctx, NULL, NULL, out_filename);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (!ofmt_ctx) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  fprintf(stderr, <span class="stringliteral">"Could not create output context\n"</span>);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  ret = <a class="code" href="group__lavu__error.html#ga4ebaa288c7684a26a591c501208910e4">AVERROR_UNKNOWN</a>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  }</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  ofmt = ofmt_ctx->oformat;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">for</span> (i = 0; i < ifmt_ctx-><a class="code" href="structAVFormatContext.html#a0b748d924898b08b89ff4974afd17285">nb_streams</a>; i++) {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="structAVStream.html">AVStream</a> *in_stream = ifmt_ctx-><a class="code" href="structAVFormatContext.html#acfefb6b6cf21e87a0dcbd1a547ba2348">streams</a>[i];</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="structAVStream.html">AVStream</a> *out_stream = <a class="code" href="group__lavf__core.html#gadcb0fd3e507d9b58fe78f61f8ad39827">avformat_new_stream</a>(ofmt_ctx, in_stream-><a class="code" href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">codec</a>-><a class="code" href="structAVCodecContext.html#a6e606effa68724cae2ef5cc05f7fd9cb">codec</a>);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (!out_stream) {</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  fprintf(stderr, <span class="stringliteral">"Failed allocating output stream\n"</span>);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  ret = <a class="code" href="group__lavu__error.html#ga4ebaa288c7684a26a591c501208910e4">AVERROR_UNKNOWN</a>;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  ret = <a class="code" href="group__lavc__core.html#ga3933b21b9dcb9173df3e56673b7a7d76">avcodec_copy_context</a>(out_stream-><a class="code" href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">codec</a>, in_stream-><a class="code" href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">codec</a>);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (ret < 0) {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  fprintf(stderr, <span class="stringliteral">"Failed to copy context from input to output stream codec context\n"</span>);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  out_stream-><a class="code" href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">codec</a>-><a class="code" href="structAVCodecContext.html#a2c974557671dd459674b170c5e64d79a">codec_tag</a> = 0;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (ofmt_ctx->oformat->flags & <a class="code" href="avformat_8h.html#ab203c7b734e9c31b7c37d34f6e2c6aef">AVFMT_GLOBALHEADER</a>)</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  out_stream-><a class="code" href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">codec</a>-><a class="code" href="structAVCodecContext.html#abb01e291550fa3fb96188af4d494587e">flags</a> |= <a class="code" href="group__lavc__core.html#ga9ed82634c59b339786575827c47a8f68">AV_CODEC_FLAG_GLOBAL_HEADER</a>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="group__lavf__misc.html#gae2645941f2dc779c307eb6314fd39f10">av_dump_format</a>(ofmt_ctx, 0, out_filename, 1);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (!(ofmt-><a class="code" href="structAVOutputFormat.html#aad55a00e728a020c1dcfaaf695320445">flags</a> & <a class="code" href="avformat_8h.html#a752cce390d480521919aa5d8be24ac0b">AVFMT_NOFILE</a>)) {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  ret = <a class="code" href="avio_8h.html#a371a670112abc5f3e15bc570da076301">avio_open</a>(&ofmt_ctx->pb, out_filename, <a class="code" href="avio_8h.html#a5c9308f296545a8f3b7687d277a6dabc">AVIO_FLAG_WRITE</a>);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (ret < 0) {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  fprintf(stderr, <span class="stringliteral">"Could not open output file '%s'"</span>, out_filename);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ret = <a class="code" href="group__lavf__encoding.html#ga18b7b10bb5b94c4842de18166bc677cb">avformat_write_header</a>(ofmt_ctx, NULL);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (ret < 0) {</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  fprintf(stderr, <span class="stringliteral">"Error occurred when opening output file\n"</span>);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">goto</span> end;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">while</span> (1) {</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="structAVStream.html">AVStream</a> *in_stream, *out_stream;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  ret = <a class="code" href="group__lavf__decoding.html#ga4fdb3084415a82e3810de6ee60e46a61">av_read_frame</a>(ifmt_ctx, &pkt);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (ret < 0)</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  in_stream = ifmt_ctx-><a class="code" href="structAVFormatContext.html#acfefb6b6cf21e87a0dcbd1a547ba2348">streams</a>[pkt.<a class="code" href="structAVPacket.html#a0d1cb9b5a32b00fb6edc81ea3aae2a49">stream_index</a>];</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  out_stream = ofmt_ctx->streams[pkt.<a class="code" href="structAVPacket.html#a0d1cb9b5a32b00fb6edc81ea3aae2a49">stream_index</a>];</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="remuxing_8c.html#ae9433a5041497371569e7f9a3c84a6e6">log_packet</a>(ifmt_ctx, &pkt, <span class="stringliteral">"in"</span>);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">/* copy packet */</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  pkt.<a class="code" href="structAVPacket.html#a73bde0a37f3b1efc839f11295bfbf42a">pts</a> = <a class="code" href="group__lavu__math.html#gac167a841d10ac919407e77ae35391cf3">av_rescale_q_rnd</a>(pkt.<a class="code" href="structAVPacket.html#a73bde0a37f3b1efc839f11295bfbf42a">pts</a>, in_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>, out_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>, <a class="code" href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0aea95b00154ff83c740b46376dfa06e11">AV_ROUND_NEAR_INF</a>|<a class="code" href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0a7fcb56631d6898b282d6c78ce6c14a43">AV_ROUND_PASS_MINMAX</a>);</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  pkt.<a class="code" href="structAVPacket.html#a85dbbd306b44b02390cd91c45e6a0f76">dts</a> = <a class="code" href="group__lavu__math.html#gac167a841d10ac919407e77ae35391cf3">av_rescale_q_rnd</a>(pkt.<a class="code" href="structAVPacket.html#a85dbbd306b44b02390cd91c45e6a0f76">dts</a>, in_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>, out_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>, <a class="code" href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0aea95b00154ff83c740b46376dfa06e11">AV_ROUND_NEAR_INF</a>|<a class="code" href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0a7fcb56631d6898b282d6c78ce6c14a43">AV_ROUND_PASS_MINMAX</a>);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  pkt.<a class="code" href="structAVPacket.html#a622e758be29fd500aed0ffdc069550f7">duration</a> = <a class="code" href="group__lavu__math.html#gaf02994a8bbeaa91d4757df179cbe567f">av_rescale_q</a>(pkt.<a class="code" href="structAVPacket.html#a622e758be29fd500aed0ffdc069550f7">duration</a>, in_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>, out_stream-><a class="code" href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">time_base</a>);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  pkt.<a class="code" href="structAVPacket.html#ab5793d8195cf4789dfb3913b7a693903">pos</a> = -1;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="remuxing_8c.html#ae9433a5041497371569e7f9a3c84a6e6">log_packet</a>(ofmt_ctx, &pkt, <span class="stringliteral">"out"</span>);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  ret = <a class="code" href="group__lavf__encoding.html#ga37352ed2c63493c38219d935e71db6c1">av_interleaved_write_frame</a>(ofmt_ctx, &pkt);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">if</span> (ret < 0) {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  fprintf(stderr, <span class="stringliteral">"Error muxing packet\n"</span>);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="group__lavc__packet.html#ga63d5a489b419bd5d45cfd09091cbcbc2">av_packet_unref</a>(&pkt);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="group__lavf__encoding.html#ga7f14007e7dc8f481f054b21614dfec13">av_write_trailer</a>(ofmt_ctx);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> end:</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="group__lavf__decoding.html#gae804b99aec044690162b8b9b110236a4">avformat_close_input</a>(&ifmt_ctx);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">/* close output */</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (ofmt_ctx && !(ofmt-><a class="code" href="structAVOutputFormat.html#aad55a00e728a020c1dcfaaf695320445">flags</a> & <a class="code" href="avformat_8h.html#a752cce390d480521919aa5d8be24ac0b">AVFMT_NOFILE</a>))</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="avio_8h.html#ae118a1f37f1e48617609ead9910aac15">avio_closep</a>(&ofmt_ctx->pb);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="group__lavf__core.html#gac2990b13b68e831a408fce8e1d0d6445">avformat_free_context</a>(ofmt_ctx);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span> (ret < 0 && ret != <a class="code" href="group__lavu__error.html#gab4faa0afdf35076914824200331defff">AVERROR_EOF</a>) {</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  fprintf(stderr, <span class="stringliteral">"Error occurred: %s\n"</span>, <a class="code" href="group__lavu__error.html#gac4f6e109c242c81aeee21868d3f35e12">av_err2str</a>(ret));</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> }</div>
<div class="ttc" id="avio_8h_html_a371a670112abc5f3e15bc570da076301"><div class="ttname"><a href="avio_8h.html#a371a670112abc5f3e15bc570da076301">avio_open</a></div><div class="ttdeci">int avio_open(AVIOContext **s, const char *url, int flags)</div><div class="ttdoc">Create and initialize a AVIOContext for accessing the resource indicated by url. </div></div>
<div class="ttc" id="structAVCodecContext_html_a6e606effa68724cae2ef5cc05f7fd9cb"><div class="ttname"><a href="structAVCodecContext.html#a6e606effa68724cae2ef5cc05f7fd9cb">AVCodecContext::codec</a></div><div class="ttdeci">const struct AVCodec * codec</div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01541">avcodec.h:1541</a></div></div>
<div class="ttc" id="group__lavf__encoding_html_ga37352ed2c63493c38219d935e71db6c1"><div class="ttname"><a href="group__lavf__encoding.html#ga37352ed2c63493c38219d935e71db6c1">av_interleaved_write_frame</a></div><div class="ttdeci">int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)</div><div class="ttdoc">Write a packet to an output media file ensuring correct interleaving. </div></div>
<div class="ttc" id="structAVPacket_html_ab5793d8195cf4789dfb3913b7a693903"><div class="ttname"><a href="structAVPacket.html#ab5793d8195cf4789dfb3913b7a693903">AVPacket::pos</a></div><div class="ttdeci">int64_t pos</div><div class="ttdoc">byte position in stream, -1 if unknown </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01487">avcodec.h:1487</a></div></div>
<div class="ttc" id="demuxing__decoding_8c_html_a409462acdf7aebe5bfbe1bcd811efa5d"><div class="ttname"><a href="demuxing__decoding_8c.html#a409462acdf7aebe5bfbe1bcd811efa5d">fmt_ctx</a></div><div class="ttdeci">static AVFormatContext * fmt_ctx</div><div class="ttdef"><b>Definition:</b> <a href="demuxing__decoding_8c_source.html#l00037">demuxing_decoding.c:37</a></div></div>
<div class="ttc" id="avio_8h_html_a5c9308f296545a8f3b7687d277a6dabc"><div class="ttname"><a href="avio_8h.html#a5c9308f296545a8f3b7687d277a6dabc">AVIO_FLAG_WRITE</a></div><div class="ttdeci">#define AVIO_FLAG_WRITE</div><div class="ttdoc">write-only </div><div class="ttdef"><b>Definition:</b> <a href="avio_8h_source.html#l00538">avio.h:538</a></div></div>
<div class="ttc" id="demuxing__decoding_8c_html_a3d4c6562f0b27cf0cacbbea5c038c090"><div class="ttname"><a href="demuxing__decoding_8c.html#a3d4c6562f0b27cf0cacbbea5c038c090">pkt</a></div><div class="ttdeci">static AVPacket pkt</div><div class="ttdef"><b>Definition:</b> <a href="demuxing__decoding_8c_source.html#l00054">demuxing_decoding.c:54</a></div></div>
<div class="ttc" id="group__lavc__core_html_ga3933b21b9dcb9173df3e56673b7a7d76"><div class="ttname"><a href="group__lavc__core.html#ga3933b21b9dcb9173df3e56673b7a7d76">avcodec_copy_context</a></div><div class="ttdeci">int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)</div><div class="ttdoc">Copy the settings of the source AVCodecContext into the destination AVCodecContext. </div></div>
<div class="ttc" id="remuxing_8c_html_a3c04138a5bfe5d72780bb7e82a18e627"><div class="ttname"><a href="remuxing_8c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a></div><div class="ttdeci">int main(int argc, char **argv)</div><div class="ttdef"><b>Definition:</b> <a href="remuxing_8c_source.html#l00046">remuxing.c:46</a></div></div>
<div class="ttc" id="structAVFormatContext_html"><div class="ttname"><a href="structAVFormatContext.html">AVFormatContext</a></div><div class="ttdoc">Format I/O context. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l01314">avformat.h:1314</a></div></div>
<div class="ttc" id="structAVOutputFormat_html_aad55a00e728a020c1dcfaaf695320445"><div class="ttname"><a href="structAVOutputFormat.html#aad55a00e728a020c1dcfaaf695320445">AVOutputFormat::flags</a></div><div class="ttdeci">int flags</div><div class="ttdoc">can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, AVFMT_TS_NONSTRICT </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00542">avformat.h:542</a></div></div>
<div class="ttc" id="timestamp_8h_html"><div class="ttname"><a href="timestamp_8h.html">timestamp.h</a></div><div class="ttdoc">timestamp utils, mostly useful for debugging/logging purposes </div></div>
<div class="ttc" id="structAVPacket_html_a622e758be29fd500aed0ffdc069550f7"><div class="ttname"><a href="structAVPacket.html#a622e758be29fd500aed0ffdc069550f7">AVPacket::duration</a></div><div class="ttdeci">int64_t duration</div><div class="ttdoc">Duration of this packet in AVStream->time_base units, 0 if unknown. </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01485">avcodec.h:1485</a></div></div>
<div class="ttc" id="group__lavf__core_html_gadcb0fd3e507d9b58fe78f61f8ad39827"><div class="ttname"><a href="group__lavf__core.html#gadcb0fd3e507d9b58fe78f61f8ad39827">avformat_new_stream</a></div><div class="ttdeci">AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)</div><div class="ttdoc">Add a new stream to a media file. </div></div>
<div class="ttc" id="structAVFormatContext_html_acfefb6b6cf21e87a0dcbd1a547ba2348"><div class="ttname"><a href="structAVFormatContext.html#acfefb6b6cf21e87a0dcbd1a547ba2348">AVFormatContext::streams</a></div><div class="ttdeci">AVStream ** streams</div><div class="ttdoc">A list of all streams in the file. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l01382">avformat.h:1382</a></div></div>
<div class="ttc" id="group__lavu__error_html_gab4faa0afdf35076914824200331defff"><div class="ttname"><a href="group__lavu__error.html#gab4faa0afdf35076914824200331defff">AVERROR_EOF</a></div><div class="ttdeci">#define AVERROR_EOF</div><div class="ttdoc">End of file. </div><div class="ttdef"><b>Definition:</b> <a href="error_8h_source.html#l00055">error.h:55</a></div></div>
<div class="ttc" id="avformat_8h_html_a6ddf3d982feb45fa5081420ee911f5d5"><div class="ttname"><a href="avformat_8h.html#a6ddf3d982feb45fa5081420ee911f5d5">avformat_alloc_output_context2</a></div><div class="ttdeci">int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, const char *format_name, const char *filename)</div><div class="ttdoc">Allocate an AVFormatContext for an output format. </div></div>
<div class="ttc" id="group__lavu__math_html_gaf02994a8bbeaa91d4757df179cbe567f"><div class="ttname"><a href="group__lavu__math.html#gaf02994a8bbeaa91d4757df179cbe567f">av_rescale_q</a></div><div class="ttdeci">int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const</div><div class="ttdoc">Rescale a 64-bit integer by 2 rational numbers. </div></div>
<div class="ttc" id="group__lavf__misc_html_gae2645941f2dc779c307eb6314fd39f10"><div class="ttname"><a href="group__lavf__misc.html#gae2645941f2dc779c307eb6314fd39f10">av_dump_format</a></div><div class="ttdeci">void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output)</div><div class="ttdoc">Print detailed information about the input or output format, such as duration, bitrate, streams, container, programs, metadata, side data, codec and time base. </div></div>
<div class="ttc" id="transcoding_8c_html_a24170971d926c1359c289f2515dec3d7"><div class="ttname"><a href="transcoding_8c.html#a24170971d926c1359c289f2515dec3d7">ifmt_ctx</a></div><div class="ttdeci">static AVFormatContext * ifmt_ctx</div><div class="ttdef"><b>Definition:</b> <a href="transcoding_8c_source.html#l00039">transcoding.c:39</a></div></div>
<div class="ttc" id="timestamp_8h_html_ad344b91ede6b86fc0a530611293f42da"><div class="ttname"><a href="timestamp_8h.html#ad344b91ede6b86fc0a530611293f42da">av_ts2timestr</a></div><div class="ttdeci">#define av_ts2timestr(ts, tb)</div><div class="ttdoc">Convenience macro, the return value should be used only directly in function arguments but never stan...</div><div class="ttdef"><b>Definition:</b> <a href="timestamp_8h_source.html#l00076">timestamp.h:76</a></div></div>
<div class="ttc" id="structAVCodecContext_html_abb01e291550fa3fb96188af4d494587e"><div class="ttname"><a href="structAVCodecContext.html#abb01e291550fa3fb96188af4d494587e">AVCodecContext::flags</a></div><div class="ttdeci">int flags</div><div class="ttdoc">AV_CODEC_FLAG_*. </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01627">avcodec.h:1627</a></div></div>
<div class="ttc" id="group__lavu__math_html_gga921d656eaf2c4d6800a734a13af021d0aea95b00154ff83c740b46376dfa06e11"><div class="ttname"><a href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0aea95b00154ff83c740b46376dfa06e11">AV_ROUND_NEAR_INF</a></div><div class="ttdoc">Round to nearest and halfway cases away from zero. </div><div class="ttdef"><b>Definition:</b> <a href="mathematics_8h_source.html#l00075">mathematics.h:75</a></div></div>
<div class="ttc" id="structAVStream_html_a56f20051fb99339cc588cd3a07ab8c96"><div class="ttname"><a href="structAVStream.html#a56f20051fb99339cc588cd3a07ab8c96">AVStream::codec</a></div><div class="ttdeci">AVCodecContext * codec</div><div class="ttdoc">Codec context associated with this stream. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00896">avformat.h:896</a></div></div>
<div class="ttc" id="structAVFormatContext_html_a0b748d924898b08b89ff4974afd17285"><div class="ttname"><a href="structAVFormatContext.html#a0b748d924898b08b89ff4974afd17285">AVFormatContext::nb_streams</a></div><div class="ttdeci">unsigned int nb_streams</div><div class="ttdoc">Number of elements in AVFormatContext.streams. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l01370">avformat.h:1370</a></div></div>
<div class="ttc" id="group__lavu__math_html_gac167a841d10ac919407e77ae35391cf3"><div class="ttname"><a href="group__lavu__math.html#gac167a841d10ac919407e77ae35391cf3">av_rescale_q_rnd</a></div><div class="ttdeci">int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq, enum AVRounding) av_const</div><div class="ttdoc">Rescale a 64-bit integer by 2 rational numbers with specified rounding. </div></div>
<div class="ttc" id="group__lavf__encoding_html_ga18b7b10bb5b94c4842de18166bc677cb"><div class="ttname"><a href="group__lavf__encoding.html#ga18b7b10bb5b94c4842de18166bc677cb">avformat_write_header</a></div><div class="ttdeci">av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)</div><div class="ttdoc">Allocate the stream private data and write the stream header to an output media file. </div></div>
<div class="ttc" id="avformat_8h_html_ab203c7b734e9c31b7c37d34f6e2c6aef"><div class="ttname"><a href="avformat_8h.html#ab203c7b734e9c31b7c37d34f6e2c6aef">AVFMT_GLOBALHEADER</a></div><div class="ttdeci">#define AVFMT_GLOBALHEADER</div><div class="ttdoc">Format wants global header. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00484">avformat.h:484</a></div></div>
<div class="ttc" id="group__lavu__error_html_gac4f6e109c242c81aeee21868d3f35e12"><div class="ttname"><a href="group__lavu__error.html#gac4f6e109c242c81aeee21868d3f35e12">av_err2str</a></div><div class="ttdeci">#define av_err2str(errnum)</div><div class="ttdoc">Convenience macro, the return value should be used only directly in function arguments but never stan...</div><div class="ttdef"><b>Definition:</b> <a href="error_8h_source.html#l00119">error.h:119</a></div></div>
<div class="ttc" id="structAVStream_html"><div class="ttname"><a href="structAVStream.html">AVStream</a></div><div class="ttdoc">Stream structure. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00877">avformat.h:877</a></div></div>
<div class="ttc" id="remuxing_8c_html_ae9433a5041497371569e7f9a3c84a6e6"><div class="ttname"><a href="remuxing_8c.html#ae9433a5041497371569e7f9a3c84a6e6">log_packet</a></div><div class="ttdeci">static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt, const char *tag)</div><div class="ttdef"><b>Definition:</b> <a href="remuxing_8c_source.html#l00034">remuxing.c:34</a></div></div>
<div class="ttc" id="group__lavc__packet_html_ga63d5a489b419bd5d45cfd09091cbcbc2"><div class="ttname"><a href="group__lavc__packet.html#ga63d5a489b419bd5d45cfd09091cbcbc2">av_packet_unref</a></div><div class="ttdeci">void av_packet_unref(AVPacket *pkt)</div><div class="ttdoc">Wipe the packet. </div></div>
<div class="ttc" id="structAVCodecContext_html_a2c974557671dd459674b170c5e64d79a"><div class="ttname"><a href="structAVCodecContext.html#a2c974557671dd459674b170c5e64d79a">AVCodecContext::codec_tag</a></div><div class="ttdeci">unsigned int codec_tag</div><div class="ttdoc">fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01564">avcodec.h:1564</a></div></div>
<div class="ttc" id="structAVRational_html"><div class="ttname"><a href="structAVRational.html">AVRational</a></div><div class="ttdoc">rational number numerator/denominator </div><div class="ttdef"><b>Definition:</b> <a href="rational_8h_source.html#l00043">rational.h:43</a></div></div>
<div class="ttc" id="group__lavf__core_html_gac2990b13b68e831a408fce8e1d0d6445"><div class="ttname"><a href="group__lavf__core.html#gac2990b13b68e831a408fce8e1d0d6445">avformat_free_context</a></div><div class="ttdeci">void avformat_free_context(AVFormatContext *s)</div><div class="ttdoc">Free an AVFormatContext and all its streams. </div></div>
<div class="ttc" id="group__lavf__decoding_html_ga4fdb3084415a82e3810de6ee60e46a61"><div class="ttname"><a href="group__lavf__decoding.html#ga4fdb3084415a82e3810de6ee60e46a61">av_read_frame</a></div><div class="ttdeci">int av_read_frame(AVFormatContext *s, AVPacket *pkt)</div><div class="ttdoc">Return the next frame of a stream. </div></div>
<div class="ttc" id="group__lavc__core_html_ga9ed82634c59b339786575827c47a8f68"><div class="ttname"><a href="group__lavc__core.html#ga9ed82634c59b339786575827c47a8f68">AV_CODEC_FLAG_GLOBAL_HEADER</a></div><div class="ttdeci">#define AV_CODEC_FLAG_GLOBAL_HEADER</div><div class="ttdoc">Place global headers in extradata instead of every keyframe. </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l00783">avcodec.h:783</a></div></div>
<div class="ttc" id="avformat_8h_html"><div class="ttname"><a href="avformat_8h.html">avformat.h</a></div><div class="ttdoc">Main libavformat public API header. </div></div>
<div class="ttc" id="avformat_8h_html_a752cce390d480521919aa5d8be24ac0b"><div class="ttname"><a href="avformat_8h.html#a752cce390d480521919aa5d8be24ac0b">AVFMT_NOFILE</a></div><div class="ttdeci">#define AVFMT_NOFILE</div><div class="ttdoc">Demuxer will use avio_open, no opened file should be provided by the caller. </div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00477">avformat.h:477</a></div></div>
<div class="ttc" id="group__lavf__decoding_html_gad42172e27cddafb81096939783b157bb"><div class="ttname"><a href="group__lavf__decoding.html#gad42172e27cddafb81096939783b157bb">avformat_find_stream_info</a></div><div class="ttdeci">int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)</div><div class="ttdoc">Read packets of a media file to get stream information. </div></div>
<div class="ttc" id="structAVOutputFormat_html"><div class="ttname"><a href="structAVOutputFormat.html">AVOutputFormat</a></div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00522">avformat.h:522</a></div></div>
<div class="ttc" id="group__lavu__error_html_ga4ebaa288c7684a26a591c501208910e4"><div class="ttname"><a href="group__lavu__error.html#ga4ebaa288c7684a26a591c501208910e4">AVERROR_UNKNOWN</a></div><div class="ttdeci">#define AVERROR_UNKNOWN</div><div class="ttdoc">Unknown error, typically from an external library. </div><div class="ttdef"><b>Definition:</b> <a href="error_8h_source.html#l00071">error.h:71</a></div></div>
<div class="ttc" id="group__lavf__decoding_html_gae804b99aec044690162b8b9b110236a4"><div class="ttname"><a href="group__lavf__decoding.html#gae804b99aec044690162b8b9b110236a4">avformat_close_input</a></div><div class="ttdeci">void avformat_close_input(AVFormatContext **s)</div><div class="ttdoc">Close an opened input AVFormatContext. </div></div>
<div class="ttc" id="group__lavu__math_html_gga921d656eaf2c4d6800a734a13af021d0a7fcb56631d6898b282d6c78ce6c14a43"><div class="ttname"><a href="group__lavu__math.html#gga921d656eaf2c4d6800a734a13af021d0a7fcb56631d6898b282d6c78ce6c14a43">AV_ROUND_PASS_MINMAX</a></div><div class="ttdoc">Flag to pass INT64_MIN/MAX through instead of rescaling, this avoids special cases for AV_NOPTS_VALUE...</div><div class="ttdef"><b>Definition:</b> <a href="mathematics_8h_source.html#l00076">mathematics.h:76</a></div></div>
<div class="ttc" id="timestamp_8h_html_a86d797e907fa454ed5fd34bfb0bcd747"><div class="ttname"><a href="timestamp_8h.html#a86d797e907fa454ed5fd34bfb0bcd747">av_ts2str</a></div><div class="ttdeci">#define av_ts2str(ts)</div><div class="ttdoc">Convenience macro, the return value should be used only directly in function arguments but never stan...</div><div class="ttdef"><b>Definition:</b> <a href="timestamp_8h_source.html#l00054">timestamp.h:54</a></div></div>
<div class="ttc" id="group__lavf__decoding_html_ga31d601155e9035d5b0e7efedc894ee49"><div class="ttname"><a href="group__lavf__decoding.html#ga31d601155e9035d5b0e7efedc894ee49">avformat_open_input</a></div><div class="ttdeci">int avformat_open_input(AVFormatContext **ps, const char *url, AVInputFormat *fmt, AVDictionary **options)</div><div class="ttdoc">Open an input stream and read the header. </div></div>
<div class="ttc" id="structAVPacket_html_a85dbbd306b44b02390cd91c45e6a0f76"><div class="ttname"><a href="structAVPacket.html#a85dbbd306b44b02390cd91c45e6a0f76">AVPacket::dts</a></div><div class="ttdeci">int64_t dts</div><div class="ttdoc">Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...</div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01466">avcodec.h:1466</a></div></div>
<div class="ttc" id="group__lavf__encoding_html_ga7f14007e7dc8f481f054b21614dfec13"><div class="ttname"><a href="group__lavf__encoding.html#ga7f14007e7dc8f481f054b21614dfec13">av_write_trailer</a></div><div class="ttdeci">int av_write_trailer(AVFormatContext *s)</div><div class="ttdoc">Write the stream trailer to an output media file and free the file private data. </div></div>
<div class="ttc" id="structAVPacket_html_a0d1cb9b5a32b00fb6edc81ea3aae2a49"><div class="ttname"><a href="structAVPacket.html#a0d1cb9b5a32b00fb6edc81ea3aae2a49">AVPacket::stream_index</a></div><div class="ttdeci">int stream_index</div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01469">avcodec.h:1469</a></div></div>
<div class="ttc" id="structAVStream_html_a9db755451f14e2bf590d4b85d82b32e6"><div class="ttname"><a href="structAVStream.html#a9db755451f14e2bf590d4b85d82b32e6">AVStream::time_base</a></div><div class="ttdeci">AVRational time_base</div><div class="ttdoc">This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...</div><div class="ttdef"><b>Definition:</b> <a href="avformat_8h_source.html#l00919">avformat.h:919</a></div></div>
<div class="ttc" id="structAVPacket_html"><div class="ttname"><a href="structAVPacket.html">AVPacket</a></div><div class="ttdoc">This structure stores compressed data. </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01444">avcodec.h:1444</a></div></div>
<div class="ttc" id="group__lavf__core_html_ga917265caec45ef5a0646356ed1a507e3"><div class="ttname"><a href="group__lavf__core.html#ga917265caec45ef5a0646356ed1a507e3">av_register_all</a></div><div class="ttdeci">void av_register_all(void)</div><div class="ttdoc">Initialize libavformat and register all the muxers, demuxers and protocols. </div></div>
<div class="ttc" id="avio_8h_html_ae118a1f37f1e48617609ead9910aac15"><div class="ttname"><a href="avio_8h.html#ae118a1f37f1e48617609ead9910aac15">avio_closep</a></div><div class="ttdeci">int avio_closep(AVIOContext **s)</div><div class="ttdoc">Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...</div></div>
<div class="ttc" id="transcoding_8c_html_aad50129a22f90b00b5d5cc7551175093"><div class="ttname"><a href="transcoding_8c.html#aad50129a22f90b00b5d5cc7551175093">ofmt_ctx</a></div><div class="ttdeci">static AVFormatContext * ofmt_ctx</div><div class="ttdef"><b>Definition:</b> <a href="transcoding_8c_source.html#l00040">transcoding.c:40</a></div></div>
<div class="ttc" id="structAVPacket_html_a73bde0a37f3b1efc839f11295bfbf42a"><div class="ttname"><a href="structAVPacket.html#a73bde0a37f3b1efc839f11295bfbf42a">AVPacket::pts</a></div><div class="ttdeci">int64_t pts</div><div class="ttdoc">Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...</div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01460">avcodec.h:1460</a></div></div>
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