shaka-packager/docs/d6/d17/es__parser__h264_8cc_source...

276 lines
30 KiB
HTML
Raw Normal View History

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.6"/>
<title>DASH Media Packaging SDK: media/formats/mp2t/es_parser_h264.cc 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/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</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 style="padding-left: 0.5em;">
<div id="projectname">DASH Media Packaging SDK
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "../../search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="../../index.html"><span>Main&#160;Page</span></a></li>
<li><a href="../../namespaces.html"><span>Namespaces</span></a></li>
<li><a href="../../annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="../../files.html"><span>Files</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="../../search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="../../search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="../../files.html"><span>File&#160;List</span></a></li>
</ul>
</div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_65f7acfa8cf3a5f1edc11faa2428b914.html">formats</a></li><li class="navelem"><a class="el" href="../../dir_f7dcbe7025bbacfc4b9a7dff6ad41d72.html">mp2t</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">es_parser_h264.cc</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 The Chromium Authors. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// found in the LICENSE file.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp2t/es_parser_h264.h&quot;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/media_sample.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/timestamp.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/video_stream_info.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/avc_decoder_configuration_record.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/h264_byte_to_unit_stream_converter.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/h264_parser.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp2t/mp2t_common.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">namespace </span>mp2t {</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;EsParserH264::EsParserH264(uint32_t pid,</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keyword">const</span> NewStreamInfoCB&amp; new_stream_info_cb,</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keyword">const</span> EmitSampleCB&amp; emit_sample_cb)</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; : EsParserH26x(Nalu::kH264,</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; std::unique_ptr&lt;H26xByteToUnitStreamConverter&gt;(</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; new H264ByteToUnitStreamConverter()),</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; pid,</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; emit_sample_cb),</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; new_stream_info_cb_(new_stream_info_cb),</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; decoder_config_check_pending_(false),</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; h264_parser_(new H264Parser()) {}</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;EsParserH264::~EsParserH264() {}</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keywordtype">void</span> EsParserH264::Reset() {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; DVLOG(1) &lt;&lt; <span class="stringliteral">&quot;EsParserH264::Reset&quot;</span>;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; h264_parser_.reset(<span class="keyword">new</span> H264Parser());</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; last_video_decoder_config_ = std::shared_ptr&lt;StreamInfo&gt;();</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; decoder_config_check_pending_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; EsParserH26x::Reset();</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;}</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="keywordtype">bool</span> EsParserH264::ProcessNalu(<span class="keyword">const</span> Nalu&amp; nalu,</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; VideoSliceInfo* video_slice_info) {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; video_slice_info-&gt;valid = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keywordflow">switch</span> (nalu.type()) {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">case</span> Nalu::H264_AUD: {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; DVLOG(LOG_LEVEL_ES) &lt;&lt; <span class="stringliteral">&quot;Nalu: AUD&quot;</span>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">case</span> Nalu::H264_SPS: {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; DVLOG(LOG_LEVEL_ES) &lt;&lt; <span class="stringliteral">&quot;Nalu: SPS&quot;</span>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordtype">int</span> sps_id;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">if</span> (h264_parser_-&gt;ParseSps(nalu, &amp;sps_id) != H264Parser::kOk)</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; decoder_config_check_pending_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">case</span> Nalu::H264_PPS: {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; DVLOG(LOG_LEVEL_ES) &lt;&lt; <span class="stringliteral">&quot;Nalu: PPS&quot;</span>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordtype">int</span> pps_id;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">if</span> (h264_parser_-&gt;ParsePps(nalu, &amp;pps_id) != H264Parser::kOk) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="comment">// Allow PPS parsing to fail if waiting for SPS.</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (last_video_decoder_config_)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; decoder_config_check_pending_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordflow">case</span> Nalu::H264_IDRSlice:</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordflow">case</span> Nalu::H264_NonIDRSlice: {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> is_key_frame = (nalu.type() == Nalu::H264_IDRSlice);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; DVLOG(LOG_LEVEL_ES) &lt;&lt; <span class="stringliteral">&quot;Nalu: slice IDR=&quot;</span> &lt;&lt; is_key_frame;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; H264SliceHeader shdr;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordflow">if</span> (h264_parser_-&gt;ParseSliceHeader(nalu, &amp;shdr) != H264Parser::kOk) {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="comment">// Only accept an invalid SPS/PPS at the beginning when the stream</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="comment">// does not necessarily start with an SPS/PPS/IDR.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordflow">if</span> (last_video_decoder_config_)</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; video_slice_info-&gt;valid = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; video_slice_info-&gt;is_key_frame = is_key_frame;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; video_slice_info-&gt;frame_num = shdr.frame_num;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; video_slice_info-&gt;pps_id = shdr.pic_parameter_set_id;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="keywordflow">default</span>: {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; DVLOG(LOG_LEVEL_ES) &lt;&lt; <span class="stringliteral">&quot;Nalu: &quot;</span> &lt;&lt; nalu.type();</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;}</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="keywordtype">bool</span> EsParserH264::UpdateVideoDecoderConfig(<span class="keywordtype">int</span> pps_id) {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="comment">// Update the video decoder configuration if needed.</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">if</span> (!decoder_config_check_pending_)</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keyword">const</span> H264Pps* pps = h264_parser_-&gt;GetPps(pps_id);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">const</span> H264Sps* sps;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordflow">if</span> (!pps) {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">// Only accept an invalid PPS at the beginning when the stream</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="comment">// does not necessarily start with an SPS/PPS/IDR.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="comment">// In this case, the initial frames are conveyed to the upper layer with</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// an invalid VideoDecoderConfig and it&#39;s up to the upper layer</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// to process this kind of frame accordingly.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">return</span> last_video_decoder_config_ == <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; sps = h264_parser_-&gt;GetSps(pps-&gt;seq_parameter_set_id);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">if</span> (!sps)</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; decoder_config_check_pending_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; std::vector&lt;uint8_t&gt; decoder_config_record;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordflow">if</span> (!stream_converter()-&gt;GetDecoderConfigurationRecord(</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; &amp;decoder_config_record)) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; DLOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failure to construct an AVCDecoderConfigurationRecord&quot;</span>;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; }</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordflow">if</span> (last_video_decoder_config_) {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">if</span> (last_video_decoder_config_-&gt;codec_config() != decoder_config_record) {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="comment">// Video configuration has changed. Issue warning.</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="comment">// TODO(tinskip): Check the nature of the configuration change. Only</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="comment">// minor configuration changes (such as frame ordering) can be handled</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="comment">// gracefully by decoders without notification. Major changes (such as</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="comment">// video resolution changes) should be treated as errors.</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;H.264 decoder configuration has changed.&quot;</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; last_video_decoder_config_-&gt;set_codec_config(decoder_config_record);</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; uint32_t coded_width = 0;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; uint32_t coded_height = 0;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; uint32_t pixel_width = 0;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; uint32_t pixel_height = 0;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">if</span> (!ExtractResolutionFromSps(*sps, &amp;coded_width, &amp;coded_height, &amp;pixel_width,</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; &amp;pixel_height)) {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to parse SPS.&quot;</span>;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keyword">const</span> uint8_t nalu_length_size =</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; H26xByteToUnitStreamConverter::kUnitStreamNaluLengthSize;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keyword">const</span> H26xStreamFormat stream_format = stream_converter()-&gt;stream_format();</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keyword">const</span> FourCC codec_fourcc =</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; stream_format == H26xStreamFormat::kNalUnitStreamWithParameterSetNalus</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; ? FOURCC_avc3</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; : FOURCC_avc1;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; last_video_decoder_config_ = std::make_shared&lt;VideoStreamInfo&gt;(</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; pid(), kMpeg2Timescale, kInfiniteDuration, kCodecH264, stream_format,</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <a class="code" href="../../d6/d57/classshaka_1_1media_1_1AVCDecoderConfigurationRecord.html#a66b23ef2de8b851482628fefafafce17">AVCDecoderConfigurationRecord::GetCodecString</a>(</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; codec_fourcc, decoder_config_record[1], decoder_config_record[2],</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; decoder_config_record[3]),</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; decoder_config_record.data(), decoder_config_record.size(), coded_width,</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; coded_height, pixel_width, pixel_height, 0, nalu_length_size,</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; std::string(), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; DVLOG(1) &lt;&lt; <span class="stringliteral">&quot;Profile IDC: &quot;</span> &lt;&lt; sps-&gt;profile_idc;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; DVLOG(1) &lt;&lt; <span class="stringliteral">&quot;Level IDC: &quot;</span> &lt;&lt; sps-&gt;level_idc;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; DVLOG(1) &lt;&lt; <span class="stringliteral">&quot;log2_max_frame_num_minus4: &quot;</span> &lt;&lt; sps-&gt;log2_max_frame_num_minus4;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="comment">// Video config notification.</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; new_stream_info_cb_.Run(last_video_decoder_config_);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;}</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;} <span class="comment">// namespace mp2t</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1AVCDecoderConfigurationRecord_html_a66b23ef2de8b851482628fefafafce17"><div class="ttname"><a href="../../d6/d57/classshaka_1_1media_1_1AVCDecoderConfigurationRecord.html#a66b23ef2de8b851482628fefafafce17">shaka::media::AVCDecoderConfigurationRecord::GetCodecString</a></div><div class="ttdeci">std::string GetCodecString(FourCC codec_fourcc) const </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d72/avc__decoder__configuration__record_8cc_source.html#l00091">avc_decoder_configuration_record.cc:91</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Thu Jul 13 2017 00:24:27 for DASH Media Packaging SDK by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="../../doxygen.png" alt="doxygen"/>
</a> 1.8.6
</small></address>
</body>
</html>