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<div class="title">mp4_media_parser.cc</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright (c) 2012 The Chromium Authors. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// found in the LICENSE file.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "packager/media/formats/mp4/mp4_media_parser.h"</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "packager/base/callback.h"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/base/callback_helpers.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/memory/ref_counted.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/strings/string_number_conversions.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/base/aes_encryptor.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/base/audio_stream_info.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/media/base/buffer_reader.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "packager/media/base/decrypt_config.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/media/base/key_source.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "packager/media/base/media_sample.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "packager/media/base/video_stream_info.h"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "packager/media/file/file.h"</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "packager/media/file/file_closer.h"</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "packager/media/filters/avc_decoder_configuration.h"</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "packager/media/filters/hevc_decoder_configuration.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "packager/media/filters/vp_codec_configuration.h"</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "packager/media/formats/mp4/box_definitions.h"</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "packager/media/formats/mp4/box_reader.h"</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "packager/media/formats/mp4/es_descriptor.h"</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "packager/media/formats/mp4/rcheck.h"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "packager/media/formats/mp4/track_run_iterator.h"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>mp4 {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> uint64_t Rescale(uint64_t time_in_old_scale,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  uint32_t old_scale,</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  uint32_t new_scale) {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">return</span> (static_cast<double>(time_in_old_scale) / old_scale) * new_scale;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> VideoCodec FourCCToVideoCodec(FourCC fourcc) {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">switch</span> (fourcc) {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">case</span> FOURCC_AVC1:</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> kCodecH264;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">case</span> FOURCC_HEV1:</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> kCodecHEV1;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">case</span> FOURCC_HVC1:</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> kCodecHVC1;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">case</span> FOURCC_VP08:</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> kCodecVP8;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">case</span> FOURCC_VP09:</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> kCodecVP9;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">case</span> FOURCC_VP10:</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> kCodecVP10;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> kUnknownVideoCodec;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> AudioCodec FourCCToAudioCodec(FourCC fourcc) {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">switch</span>(fourcc) {</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">case</span> FOURCC_DTSC:</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> kCodecDTSC;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">case</span> FOURCC_DTSH:</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> kCodecDTSH;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">case</span> FOURCC_DTSL:</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> kCodecDTSL;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">case</span> FOURCC_DTSE:</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> kCodecDTSE;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">case</span> FOURCC_DTSP:</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> kCodecDTSP;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">case</span> FOURCC_DTSM:</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> kCodecDTSM;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">case</span> FOURCC_EAC3:</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> kCodecEAC3;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> kUnknownAudioCodec;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">const</span> <span class="keywordtype">char</span> kWidevineKeySystemId[] = <span class="stringliteral">"edef8ba979d64acea3c827dcd51d21ed"</span>;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> MP4MediaParser::MP4MediaParser()</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  : state_(kWaitingForInit), moof_head_(0), mdat_tail_(0) {}</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> MP4MediaParser::~MP4MediaParser() {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  STLDeleteValues(&decryptor_map_);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a4ef745c8846adc9e932059a4e91f67c2"> 94</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a4ef745c8846adc9e932059a4e91f67c2">MP4MediaParser::Init</a>(<span class="keyword">const</span> InitCB& init_cb,</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">const</span> NewSampleCB& new_sample_cb,</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source) {</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  DCHECK_EQ(state_, kWaitingForInit);</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  DCHECK(init_cb_.is_null());</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  DCHECK(!init_cb.is_null());</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  DCHECK(!new_sample_cb.is_null());</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  ChangeState(kParsingBoxes);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  init_cb_ = init_cb;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  new_sample_cb_ = new_sample_cb;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  decryption_key_source_ = decryption_key_source;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">void</span> MP4MediaParser::Reset() {</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  queue_.Reset();</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  runs_.reset();</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  moof_head_ = 0;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  mdat_tail_ = 0;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a042ad7caecf9ff854029a9b72a9b35b4"> 115</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a042ad7caecf9ff854029a9b72a9b35b4">MP4MediaParser::Flush</a>() {</div>
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|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  DCHECK_NE(state_, kWaitingForInit);</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  Reset();</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ChangeState(kParsingBoxes);</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
|
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<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#ade36e7fd4daf8c6a98c16b6a94bafd28"> 121</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#ade36e7fd4daf8c6a98c16b6a94bafd28">MP4MediaParser::Parse</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size) {</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  DCHECK_NE(state_, kWaitingForInit);</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (state_ == kError)</div>
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|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  queue_.Push(buf, size);</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">bool</span> result, err = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">do</span> {</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (state_ == kParsingBoxes) {</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  result = ParseBox(&err);</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  DCHECK_EQ(kEmittingSamples, state_);</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  result = EnqueueSample(&err);</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> (result) {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  int64_t max_clear = runs_->GetMaxClearOffset() + moof_head_;</div>
|
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  err = !ReadAndDiscardMDATsUntil(max_clear);</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  } <span class="keywordflow">while</span> (result && !err);</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span> (err) {</div>
|
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  DLOG(ERROR) << <span class="stringliteral">"Error while parsing MP4"</span>;</div>
|
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  moov_.reset();</div>
|
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  Reset();</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  ChangeState(kError);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> }</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a6dafe794d755100428ed427791ae0e43"> 155</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a6dafe794d755100428ed427791ae0e43">MP4MediaParser::LoadMoov</a>(<span class="keyword">const</span> std::string& file_path) {</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  scoped_ptr<File, FileCloser> file(</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a47194a7cd303640c2a8b689d18ef9701">File::OpenWithNoBuffering</a>(file_path.c_str(), <span class="stringliteral">"r"</span>));</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (!file) {</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  LOG(ERROR) << <span class="stringliteral">"Unable to open media file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
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|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (!file->Seek(0)) {</div>
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|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  LOG(WARNING) << <span class="stringliteral">"Filesystem does not support seeking on file '"</span> << file_path</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  << <span class="stringliteral">"'"</span>;</div>
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|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  uint64_t file_position(0);</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">bool</span> mdat_seen(<span class="keyword">false</span>);</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">const</span> uint32_t kBoxHeaderReadSize(16);</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  std::vector<uint8_t> buffer(kBoxHeaderReadSize);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  int64_t bytes_read = file->Read(&buffer[0], kBoxHeaderReadSize);</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (bytes_read == 0) {</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  LOG(ERROR) << <span class="stringliteral">"Could not find 'moov' box in file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (bytes_read < kBoxHeaderReadSize) {</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  LOG(ERROR) << <span class="stringliteral">"Error reading media file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  uint64_t box_size;</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  FourCC box_type;</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordtype">bool</span> err;</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a61fc23759071d1445b81cbcc9564c6a4">BoxReader::StartTopLevelBox</a>(&buffer[0], kBoxHeaderReadSize, &box_type,</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  &box_size, &err)) {</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  LOG(ERROR) << <span class="stringliteral">"Could not start top level box from file '"</span> << file_path</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span> (box_type == FOURCC_MDAT) {</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  mdat_seen = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (box_type == FOURCC_MOOV) {</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span> (!mdat_seen) {</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// 'moov' is before 'mdat'. Nothing to do.</span></div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// 'mdat' before 'moov'. Read and parse 'moov'.</span></div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#ade36e7fd4daf8c6a98c16b6a94bafd28">Parse</a>(&buffer[0], bytes_read)) {</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  LOG(ERROR) << <span class="stringliteral">"Error parsing mp4 file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  uint64_t bytes_to_read = box_size - bytes_read;</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  buffer.resize(bytes_to_read);</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">while</span> (bytes_to_read > 0) {</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  bytes_read = file->Read(&buffer[0], bytes_to_read);</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (bytes_read <= 0) {</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  LOG(ERROR) << <span class="stringliteral">"Error reading 'moov' contents from file '"</span> << file_path</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#ade36e7fd4daf8c6a98c16b6a94bafd28">Parse</a>(&buffer[0], bytes_read)) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  LOG(ERROR) << <span class="stringliteral">"Error parsing mp4 file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  bytes_to_read -= bytes_read;</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  queue_.Reset(); <span class="comment">// So that we don't need to adjust data offsets.</span></div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  mdat_tail_ = 0; <span class="comment">// So it will skip boxes until mdat.</span></div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">break</span>; <span class="comment">// Done.</span></div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  file_position += box_size;</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (!file->Seek(file_position)) {</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  LOG(ERROR) << <span class="stringliteral">"Error skipping box in mp4 file '"</span> << file_path << <span class="stringliteral">"'"</span>;</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> }</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="keywordtype">bool</span> MP4MediaParser::ParseBox(<span class="keywordtype">bool</span>* err) {</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">const</span> uint8_t* buf;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">int</span> size;</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  queue_.Peek(&buf, &size);</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (!size)</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  scoped_ptr<BoxReader> reader(<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a029ef2fe387071143c42f50ffd1a16b5">BoxReader::ReadTopLevelBox</a>(buf, size, err));</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (reader.get() == NULL)</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> (reader->type() == FOURCC_MDAT) {</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">// The code ends up here only if a MOOV box is not yet seen.</span></div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  DCHECK(!moov_);</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  NOTIMPLEMENTED() << <span class="stringliteral">" Files with MDAT before MOOV is not supported yet."</span>;</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  *err = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// Set up mdat offset for ReadMDATsUntil().</span></div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  mdat_tail_ = queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#aa9d018636705cab1759978cd7c6d17da">head</a>() + reader->size();</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">if</span> (reader->type() == FOURCC_MOOV) {</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  *err = !ParseMoov(reader.get());</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (reader->type() == FOURCC_MOOF) {</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  moof_head_ = queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#aa9d018636705cab1759978cd7c6d17da">head</a>();</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  *err = !ParseMoof(reader.get());</div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="comment">// Return early to avoid evicting 'moof' data from queue. Auxiliary info may</span></div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// be located anywhere in the file, including inside the 'moof' itself.</span></div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// (Since 'default-base-is-moof' is mandated, no data references can come</span></div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">// before the head of the 'moof', so keeping this box around is sufficient.)</span></div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">return</span> !(*err);</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  VLOG(2) << <span class="stringliteral">"Skipping top-level box: "</span> << FourCCToString(reader->type());</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  queue_.Pop(reader->size());</div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> !(*err);</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
|
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="keywordtype">bool</span> MP4MediaParser::ParseMoov(BoxReader* reader) {</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (moov_)</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// Already parsed the 'moov' box.</span></div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  moov_.reset(<span class="keyword">new</span> Movie);</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  RCHECK(moov_->Parse(reader));</div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  runs_.reset();</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div>
|
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  std::vector<scoped_refptr<StreamInfo> > streams;</div>
|
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
|
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">for</span> (std::vector<Track>::const_iterator track = moov_->tracks.begin();</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  track != moov_->tracks.end(); ++track) {</div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">const</span> uint32_t timescale = track->media.header.timescale;</div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// Calculate duration (based on timescale).</span></div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  uint64_t duration = 0;</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (track->media.header.duration > 0) {</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  duration = track->media.header.duration;</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (moov_->extends.header.fragment_duration > 0) {</div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  DCHECK(moov_->header.timescale != 0);</div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  duration = Rescale(moov_->extends.header.fragment_duration,</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  moov_->header.timescale,</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  timescale);</div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (moov_->header.duration > 0 &&</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  moov_->header.duration != std::numeric_limits<uint64_t>::max()) {</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  DCHECK(moov_->header.timescale != 0);</div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  duration =</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  Rescale(moov_->header.duration, moov_->header.timescale, timescale);</div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  }</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">const</span> SampleDescription& samp_descr =</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  track->media.information.sample_table.description;</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordtype">size_t</span> desc_idx = 0;</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// Read sample description index from mvex if it exists otherwise read</span></div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// from the first entry in Sample To Chunk box.</span></div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">if</span> (moov_->extends.tracks.size() > 0) {</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> t = 0; t < moov_->extends.tracks.size(); t++) {</div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keyword">const</span> TrackExtends& trex = moov_->extends.tracks[t];</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">if</span> (trex.track_id == track->header.track_id) {</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  desc_idx = trex.default_sample_description_index;</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  }</div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">const</span> std::vector<ChunkInfo>& chunk_info =</div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  track->media.information.sample_table.sample_to_chunk.chunk_info;</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  RCHECK(chunk_info.size() > 0);</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  desc_idx = chunk_info[0].sample_description_index;</div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  }</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  RCHECK(desc_idx > 0);</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  desc_idx -= 1; <span class="comment">// BMFF descriptor index is one-based</span></div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">if</span> (track->media.handler.type == kAudio) {</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  RCHECK(!samp_descr.audio_entries.empty());</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// It is not uncommon to find otherwise-valid files with incorrect sample</span></div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// description indices, so we fail gracefully in that case.</span></div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordflow">if</span> (desc_idx >= samp_descr.audio_entries.size())</div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  desc_idx = 0;</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">const</span> AudioSampleEntry& entry = samp_descr.audio_entries[desc_idx];</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">const</span> FourCC actual_format = entry.GetActualFormat();</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  AudioCodec codec = FourCCToAudioCodec(actual_format);</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  uint8_t num_channels = 0;</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  uint32_t sampling_frequency = 0;</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  uint8_t audio_object_type = 0;</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  std::vector<uint8_t> extra_data;</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">switch</span> (actual_format) {</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">case</span> FOURCC_MP4A:</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// Check if it is MPEG4 AAC defined in ISO 14496 Part 3 or</span></div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">// supported MPEG2 AAC variants.</span></div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (entry.esds.es_descriptor.IsAAC()) {</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  codec = kCodecAAC;</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">const</span> AACAudioSpecificConfig& aac_audio_specific_config =</div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  entry.esds.aac_audio_specific_config;</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  num_channels = aac_audio_specific_config.num_channels();</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  sampling_frequency = aac_audio_specific_config.frequency();</div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  audio_object_type = aac_audio_specific_config.audio_object_type();</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  extra_data = entry.esds.es_descriptor.decoder_specific_info();</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  LOG(ERROR) << <span class="stringliteral">"Unsupported audio format 0x"</span> << std::hex</div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  << actual_format << <span class="stringliteral">" in stsd box."</span>;</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  }</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">case</span> FOURCC_DTSC:</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">case</span> FOURCC_DTSH:</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">case</span> FOURCC_DTSL:</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">case</span> FOURCC_DTSE:</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">case</span> FOURCC_DTSM:</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  extra_data = entry.ddts.data;</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  num_channels = entry.channelcount;</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  sampling_frequency = entry.samplerate;</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">case</span> FOURCC_EAC3:</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  num_channels = entry.channelcount;</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  sampling_frequency = entry.samplerate;</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  LOG(ERROR) << <span class="stringliteral">"Unsupported audio format 0x"</span> << std::hex</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  << actual_format << <span class="stringliteral">" in stsd box."</span>;</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  }</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordtype">bool</span> is_encrypted = entry.sinf.info.track_encryption.is_encrypted;</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  DVLOG(1) << <span class="stringliteral">"is_audio_track_encrypted_: "</span> << is_encrypted;</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  streams.push_back(<span class="keyword">new</span> AudioStreamInfo(</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  track->header.track_id,</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  timescale,</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  duration,</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  codec,</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#aa62e486f463c867b8e2f41ebb4ecea34">AudioStreamInfo::GetCodecString</a>(codec, audio_object_type),</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  track->media.header.language,</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  entry.samplesize,</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  num_channels,</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  sampling_frequency,</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  extra_data.size() ? &extra_data[0] : NULL,</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  extra_data.size(),</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  is_encrypted));</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span> (track->media.handler.type == kVideo) {</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  RCHECK(!samp_descr.video_entries.empty());</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">if</span> (desc_idx >= samp_descr.video_entries.size())</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  desc_idx = 0;</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keyword">const</span> VideoSampleEntry& entry = samp_descr.video_entries[desc_idx];</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  uint32_t coded_width = entry.width;</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  uint32_t coded_height = entry.height;</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  uint32_t pixel_width = entry.pixel_aspect.h_spacing;</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  uint32_t pixel_height = entry.pixel_aspect.v_spacing;</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (pixel_width == 0 && pixel_height == 0) {</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  pixel_width = 1;</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  pixel_height = 1;</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  std::string codec_string;</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  uint8_t nalu_length_size = 0;</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keyword">const</span> FourCC actual_format = entry.GetActualFormat();</div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keyword">const</span> VideoCodec video_codec = FourCCToVideoCodec(actual_format);</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">switch</span> (actual_format) {</div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">case</span> FOURCC_AVC1: {</div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  AVCDecoderConfiguration avc_config;</div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (!avc_config.Parse(entry.codec_config_record.data)) {</div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  LOG(ERROR) << <span class="stringliteral">"Failed to parse avcc."</span>;</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  }</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  codec_string = avc_config.GetCodecString();</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  nalu_length_size = avc_config.length_size();</div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (coded_width != avc_config.coded_width() ||</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  coded_height != avc_config.coded_height()) {</div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  LOG(WARNING) << <span class="stringliteral">"Resolution in VisualSampleEntry ("</span> << coded_width</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  << <span class="stringliteral">","</span> << coded_height</div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  << <span class="stringliteral">") does not match with resolution in "</span></div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="stringliteral">"AVCDecoderConfigurationRecord ("</span></div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  << avc_config.coded_width() << <span class="stringliteral">","</span></div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  << avc_config.coded_height()</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  << <span class="stringliteral">"). Use AVCDecoderConfigurationRecord."</span>;</div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  coded_width = avc_config.coded_width();</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  coded_height = avc_config.coded_height();</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  }</div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (pixel_width != avc_config.pixel_width() ||</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  pixel_height != avc_config.pixel_height()) {</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  LOG_IF(WARNING, pixel_width != 1 || pixel_height != 1)</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  << <span class="stringliteral">"Pixel aspect ratio in PASP box ("</span> << pixel_width << <span class="stringliteral">","</span></div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  << pixel_height</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  << <span class="stringliteral">") does not match with SAR in AVCDecoderConfigurationRecord "</span></div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="stringliteral">"("</span></div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  << avc_config.pixel_width() << <span class="stringliteral">","</span> << avc_config.pixel_height()</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  << <span class="stringliteral">"). Use AVCDecoderConfigurationRecord."</span>;</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  pixel_width = avc_config.pixel_width();</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  pixel_height = avc_config.pixel_height();</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  }</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keywordflow">case</span> FOURCC_HEV1:</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">case</span> FOURCC_HVC1: {</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  HEVCDecoderConfiguration hevc_config;</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">if</span> (!hevc_config.Parse(entry.codec_config_record.data)) {</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  LOG(ERROR) << <span class="stringliteral">"Failed to parse hevc."</span>;</div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  }</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  codec_string = hevc_config.GetCodecString(video_codec);</div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  nalu_length_size = hevc_config.length_size();</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  }</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">case</span> FOURCC_VP08:</div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordflow">case</span> FOURCC_VP09:</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">case</span> FOURCC_VP10: {</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  VPCodecConfiguration vp_config;</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">if</span> (!vp_config.Parse(entry.codec_config_record.data)) {</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  LOG(ERROR) << <span class="stringliteral">"Failed to parse vpcc."</span>;</div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  codec_string = vp_config.GetCodecString(video_codec);</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  }</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  LOG(ERROR) << <span class="stringliteral">"Unsupported video format "</span></div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  << FourCCToString(actual_format) << <span class="stringliteral">" in stsd box."</span>;</div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordtype">bool</span> is_encrypted = entry.sinf.info.track_encryption.is_encrypted;</div>
|
|
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  DVLOG(1) << <span class="stringliteral">"is_video_track_encrypted_: "</span> << is_encrypted;</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  streams.push_back(<span class="keyword">new</span> VideoStreamInfo(</div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  track->header.track_id, timescale, duration, video_codec,</div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  codec_string, track->media.header.language, coded_width, coded_height,</div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  pixel_width, pixel_height,</div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  0, <span class="comment">// trick_play_rate</span></div>
|
|
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  nalu_length_size, vector_as_array(&entry.codec_config_record.data),</div>
|
|
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  entry.codec_config_record.data.size(), is_encrypted));</div>
|
|
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  }</div>
|
|
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  }</div>
|
|
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div>
|
|
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  init_cb_.Run(streams);</div>
|
|
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordflow">if</span> (!FetchKeysIfNecessary(moov_->pssh))</div>
|
|
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  runs_.reset(<span class="keyword">new</span> TrackRunIterator(moov_.get()));</div>
|
|
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  RCHECK(runs_->Init());</div>
|
|
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  ChangeState(kEmittingSamples);</div>
|
|
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> }</div>
|
|
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> </div>
|
|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="keywordtype">bool</span> MP4MediaParser::ParseMoof(BoxReader* reader) {</div>
|
|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="comment">// Must already have initialization segment.</span></div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  RCHECK(moov_.get());</div>
|
|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  MovieFragment moof;</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  RCHECK(moof.Parse(reader));</div>
|
|
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> (!runs_)</div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  runs_.reset(<span class="keyword">new</span> TrackRunIterator(moov_.get()));</div>
|
|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  RCHECK(runs_->Init(moof));</div>
|
|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">if</span> (!FetchKeysIfNecessary(moof.pssh))</div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  ChangeState(kEmittingSamples);</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> }</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="keywordtype">bool</span> MP4MediaParser::FetchKeysIfNecessary(</div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keyword">const</span> std::vector<ProtectionSystemSpecificHeader>& headers) {</div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">if</span> (headers.empty())</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="comment">// An error will be returned later if the samples need to be decrypted.</span></div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">if</span> (!decryption_key_source_)</div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> </div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="comment">// TODO(tinskip): Pass in raw 'pssh' boxes to FetchKeys. This will allow</span></div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="comment">// supporting multiple keysystems. Move this to KeySource.</span></div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  std::vector<uint8_t> widevine_system_id;</div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  base::HexStringToBytes(kWidevineKeySystemId, &widevine_system_id);</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">for</span> (std::vector<ProtectionSystemSpecificHeader>::const_iterator iter =</div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  headers.begin(); iter != headers.end(); ++iter) {</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">if</span> (iter->system_id == widevine_system_id) {</div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  Status status = decryption_key_source_-><a class="code" href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html#a4020839c22a550bf71d891bf55087e0b">FetchKeys</a>(iter->data);</div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">if</span> (!status.ok()) {</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  LOG(ERROR) << <span class="stringliteral">"Error fetching decryption keys: "</span> << status;</div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  }</div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  }</div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  }</div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> </div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  LOG(ERROR) << <span class="stringliteral">"No viable 'pssh' box found for content decryption."</span>;</div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> }</div>
|
|
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> </div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="keywordtype">bool</span> MP4MediaParser::EnqueueSample(<span class="keywordtype">bool</span>* err) {</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">if</span> (!runs_->IsRunValid()) {</div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="comment">// Remain in kEnqueueingSamples state, discarding data, until the end of</span></div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="comment">// the current 'mdat' box has been appended to the queue.</span></div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">if</span> (!queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#af2a41afe5b213be301b7b9f7ca555fae">Trim</a>(mdat_tail_))</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> </div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  ChangeState(kParsingBoxes);</div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  }</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">if</span> (!runs_->IsSampleValid()) {</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  runs_->AdvanceRun();</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  }</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  DCHECK(!(*err));</div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> </div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keyword">const</span> uint8_t* buf;</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordtype">int</span> buf_size;</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  queue_.Peek(&buf, &buf_size);</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">if</span> (!buf_size)</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="comment">// Skip this entire track if it is not audio nor video.</span></div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keywordflow">if</span> (!runs_->is_audio() && !runs_->is_video())</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  runs_->AdvanceRun();</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> </div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="comment">// Attempt to cache the auxiliary information first. Aux info is usually</span></div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="comment">// placed in a contiguous block before the sample data, rather than being</span></div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="comment">// interleaved. If we didn't cache it, this would require that we retain the</span></div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// start of the segment buffer while reading samples. Aux info is typically</span></div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="comment">// quite small compared to sample data, so this pattern is useful on</span></div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="comment">// memory-constrained devices where the source buffer consumes a substantial</span></div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">// portion of the total system memory.</span></div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">if</span> (runs_->AuxInfoNeedsToBeCached()) {</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#a32b06f514ebfd5aef820a9b91228a854">PeekAt</a>(runs_->aux_info_offset() + moof_head_, &buf, &buf_size);</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">if</span> (buf_size < runs_->aux_info_size())</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  *err = !runs_->CacheAuxInfo(buf, buf_size);</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keywordflow">return</span> !*err;</div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  }</div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span> </div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  int64_t sample_offset = runs_->sample_offset() + moof_head_;</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#a32b06f514ebfd5aef820a9b91228a854">PeekAt</a>(sample_offset, &buf, &buf_size);</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keywordflow">if</span> (buf_size < runs_->sample_size()) {</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordflow">if</span> (sample_offset < queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#aa9d018636705cab1759978cd7c6d17da">head</a>()) {</div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  LOG(ERROR) << <span class="stringliteral">"Incorrect sample offset "</span> << sample_offset</div>
|
|
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  << <span class="stringliteral">" < "</span> << queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#aa9d018636705cab1759978cd7c6d17da">head</a>();</div>
|
|
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  *err = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  }</div>
|
|
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  }</div>
|
|
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> </div>
|
|
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  scoped_refptr<MediaSample> stream_sample(<a class="code" href="../../d8/d6c/classedash__packager_1_1media_1_1MediaSample.html#ac65ec88fbe6d8b72c65b1ff3f68c5b02">MediaSample::CopyFrom</a>(</div>
|
|
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  buf, runs_->sample_size(), runs_->is_keyframe()));</div>
|
|
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">if</span> (runs_->is_encrypted()) {</div>
|
|
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  scoped_ptr<DecryptConfig> decrypt_config = runs_->GetDecryptConfig();</div>
|
|
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">if</span> (!decrypt_config ||</div>
|
|
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  !DecryptSampleBuffer(decrypt_config.get(),</div>
|
|
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  stream_sample->writable_data(),</div>
|
|
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  stream_sample->data_size())) {</div>
|
|
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  *err = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  LOG(ERROR) << <span class="stringliteral">"Cannot decrypt samples."</span>;</div>
|
|
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  }</div>
|
|
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  }</div>
|
|
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div>
|
|
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  stream_sample->set_dts(runs_->dts());</div>
|
|
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  stream_sample->set_pts(runs_->cts());</div>
|
|
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  stream_sample->set_duration(runs_->duration());</div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> </div>
|
|
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  DVLOG(3) << <span class="stringliteral">"Pushing frame: "</span></div>
|
|
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  << <span class="stringliteral">", key="</span> << runs_->is_keyframe()</div>
|
|
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  << <span class="stringliteral">", dur="</span> << runs_->duration()</div>
|
|
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  << <span class="stringliteral">", dts="</span> << runs_->dts()</div>
|
|
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  << <span class="stringliteral">", cts="</span> << runs_->cts()</div>
|
|
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  << <span class="stringliteral">", size="</span> << runs_->sample_size();</div>
|
|
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> </div>
|
|
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="keywordflow">if</span> (!new_sample_cb_.Run(runs_->track_id(), stream_sample)) {</div>
|
|
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  *err = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  LOG(ERROR) << <span class="stringliteral">"Failed to process the sample."</span>;</div>
|
|
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  }</div>
|
|
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> </div>
|
|
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  runs_->AdvanceSample();</div>
|
|
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> }</div>
|
|
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> </div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="keywordtype">bool</span> MP4MediaParser::DecryptSampleBuffer(<span class="keyword">const</span> DecryptConfig* decrypt_config,</div>
|
|
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  uint8_t* buffer,</div>
|
|
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="keywordtype">size_t</span> buffer_size) {</div>
|
|
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  DCHECK(decrypt_config);</div>
|
|
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  DCHECK(buffer);</div>
|
|
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> </div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">if</span> (!decryption_key_source_) {</div>
|
|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  LOG(ERROR) << <span class="stringliteral">"Encrypted media sample encountered, but decryption is not "</span></div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="stringliteral">"enabled"</span>;</div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  }</div>
|
|
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> </div>
|
|
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// Get the encryptor object.</span></div>
|
|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  AesCtrEncryptor* encryptor;</div>
|
|
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  DecryptorMap::iterator found = decryptor_map_.find(decrypt_config->key_id());</div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordflow">if</span> (found == decryptor_map_.end()) {</div>
|
|
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">// Create new AesCtrEncryptor</span></div>
|
|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  EncryptionKey key;</div>
|
|
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  Status status(decryption_key_source_-><a class="code" href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html#a49ccfe7a61c36ac9818482a7892915d3">GetKey</a>(decrypt_config->key_id(),</div>
|
|
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  &key));</div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keywordflow">if</span> (!status.ok()) {</div>
|
|
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  LOG(ERROR) << <span class="stringliteral">"Error retrieving decryption key: "</span> << status;</div>
|
|
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  }</div>
|
|
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  scoped_ptr<AesCtrEncryptor> new_encryptor(<span class="keyword">new</span> AesCtrEncryptor);</div>
|
|
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="keywordflow">if</span> (!new_encryptor->InitializeWithIv(key.key, decrypt_config->iv())) {</div>
|
|
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  LOG(ERROR) << <span class="stringliteral">"Failed to initialize AesCtrEncryptor for decryption."</span>;</div>
|
|
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  }</div>
|
|
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  encryptor = new_encryptor.release();</div>
|
|
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  decryptor_map_[decrypt_config->key_id()] = encryptor;</div>
|
|
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  encryptor = found->second;</div>
|
|
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  }</div>
|
|
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="keywordflow">if</span> (!encryptor->SetIv(decrypt_config->iv())) {</div>
|
|
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  LOG(ERROR) << <span class="stringliteral">"Invalid initialization vector."</span>;</div>
|
|
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  }</div>
|
|
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> </div>
|
|
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keywordflow">if</span> (decrypt_config->subsamples().empty()) {</div>
|
|
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="comment">// Sample not encrypted using subsample encryption. Decrypt whole.</span></div>
|
|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keywordflow">if</span> (!encryptor->Decrypt(buffer, buffer_size, buffer)) {</div>
|
|
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  LOG(ERROR) << <span class="stringliteral">"Error during bulk sample decryption."</span>;</div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  }</div>
|
|
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  }</div>
|
|
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span> </div>
|
|
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="comment">// Subsample decryption.</span></div>
|
|
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keyword">const</span> std::vector<SubsampleEntry>& subsamples = decrypt_config->subsamples();</div>
|
|
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  uint8_t* current_ptr = buffer;</div>
|
|
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keyword">const</span> uint8_t* buffer_end = buffer + buffer_size;</div>
|
|
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  current_ptr += decrypt_config->data_offset();</div>
|
|
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keywordflow">if</span> (current_ptr > buffer_end) {</div>
|
|
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  LOG(ERROR) << <span class="stringliteral">"Subsample data_offset too large."</span>;</div>
|
|
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  }</div>
|
|
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">for</span> (std::vector<SubsampleEntry>::const_iterator iter = subsamples.begin();</div>
|
|
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  iter != subsamples.end();</div>
|
|
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  ++iter) {</div>
|
|
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">if</span> ((current_ptr + iter->clear_bytes + iter->cipher_bytes) > buffer_end) {</div>
|
|
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  LOG(ERROR) << <span class="stringliteral">"Subsamples overflow sample buffer."</span>;</div>
|
|
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  }</div>
|
|
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  current_ptr += iter->clear_bytes;</div>
|
|
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">if</span> (!encryptor->Decrypt(current_ptr, iter->cipher_bytes, current_ptr)) {</div>
|
|
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  LOG(ERROR) << <span class="stringliteral">"Error decrypting subsample buffer."</span>;</div>
|
|
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  }</div>
|
|
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  current_ptr += iter->cipher_bytes;</div>
|
|
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  }</div>
|
|
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span> }</div>
|
|
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span> </div>
|
|
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span> <span class="keywordtype">bool</span> MP4MediaParser::ReadAndDiscardMDATsUntil(<span class="keyword">const</span> int64_t offset) {</div>
|
|
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordtype">bool</span> err = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keywordflow">while</span> (mdat_tail_ < offset) {</div>
|
|
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keyword">const</span> uint8_t* buf;</div>
|
|
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordtype">int</span> size;</div>
|
|
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#a32b06f514ebfd5aef820a9b91228a854">PeekAt</a>(mdat_tail_, &buf, &size);</div>
|
|
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> </div>
|
|
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  FourCC type;</div>
|
|
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  uint64_t box_sz;</div>
|
|
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a61fc23759071d1445b81cbcc9564c6a4">BoxReader::StartTopLevelBox</a>(buf, size, &type, &box_sz, &err))</div>
|
|
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div>
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<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  mdat_tail_ += box_sz;</div>
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<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  }</div>
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<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  queue_.<a class="code" href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#af2a41afe5b213be301b7b9f7ca555fae">Trim</a>(std::min(mdat_tail_, offset));</div>
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<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">return</span> !err;</div>
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<div class="line"><a name="l00724"></a><span class="lineno"> 724</span> }</div>
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<div class="line"><a name="l00725"></a><span class="lineno"> 725</span> </div>
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<div class="line"><a name="l00726"></a><span class="lineno"> 726</span> <span class="keywordtype">void</span> MP4MediaParser::ChangeState(State new_state) {</div>
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<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  DVLOG(2) << <span class="stringliteral">"Changing state: "</span> << new_state;</div>
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<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  state_ = new_state;</div>
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<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> }</div>
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<div class="line"><a name="l00730"></a><span class="lineno"> 730</span> </div>
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<div class="line"><a name="l00731"></a><span class="lineno"> 731</span> } <span class="comment">// namespace mp4</span></div>
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<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1OffsetByteQueue_html_af2a41afe5b213be301b7b9f7ca555fae"><div class="ttname"><a href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#af2a41afe5b213be301b7b9f7ca555fae">edash_packager::media::OffsetByteQueue::Trim</a></div><div class="ttdeci">bool Trim(int64_t max_offset)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d1a/offset__byte__queue_8cc_source.html#l00051">offset_byte_queue.cc:51</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html_a029ef2fe387071143c42f50ffd1a16b5"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a029ef2fe387071143c42f50ffd1a16b5">edash_packager::media::mp4::BoxReader::ReadTopLevelBox</a></div><div class="ttdeci">static BoxReader * ReadTopLevelBox(const uint8_t *buf, const size_t buf_size, bool *err)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df1/box__reader_8cc_source.html#l00037">box_reader.cc:37</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1KeySource_html_a49ccfe7a61c36ac9818482a7892915d3"><div class="ttname"><a href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html#a49ccfe7a61c36ac9818482a7892915d3">edash_packager::media::KeySource::GetKey</a></div><div class="ttdeci">virtual Status GetKey(TrackType track_type, EncryptionKey *key)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd6/key__source_8cc_source.html#l00046">key_source.cc:46</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser_html_ade36e7fd4daf8c6a98c16b6a94bafd28"><div class="ttname"><a href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#ade36e7fd4daf8c6a98c16b6a94bafd28">edash_packager::media::mp4::MP4MediaParser::Parse</a></div><div class="ttdeci">bool Parse(const uint8_t *buf, int size) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00121">mp4_media_parser.cc:121</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1MediaSample_html_ac65ec88fbe6d8b72c65b1ff3f68c5b02"><div class="ttname"><a href="../../d8/d6c/classedash__packager_1_1media_1_1MediaSample.html#ac65ec88fbe6d8b72c65b1ff3f68c5b02">edash_packager::media::MediaSample::CopyFrom</a></div><div class="ttdeci">static scoped_refptr< MediaSample > CopyFrom(const uint8_t *data, size_t size, bool is_key_frame)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d0d/media__sample_8cc_source.html#l00045">media_sample.cc:45</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1OffsetByteQueue_html_a32b06f514ebfd5aef820a9b91228a854"><div class="ttname"><a href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#a32b06f514ebfd5aef820a9b91228a854">edash_packager::media::OffsetByteQueue::PeekAt</a></div><div class="ttdeci">void PeekAt(int64_t offset, const uint8_t **buf, int *size)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d1a/offset__byte__queue_8cc_source.html#l00041">offset_byte_queue.cc:41</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser_html_a042ad7caecf9ff854029a9b72a9b35b4"><div class="ttname"><a href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a042ad7caecf9ff854029a9b72a9b35b4">edash_packager::media::mp4::MP4MediaParser::Flush</a></div><div class="ttdeci">void Flush() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00115">mp4_media_parser.cc:115</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser_html_a6dafe794d755100428ed427791ae0e43"><div class="ttname"><a href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a6dafe794d755100428ed427791ae0e43">edash_packager::media::mp4::MP4MediaParser::LoadMoov</a></div><div class="ttdeci">bool LoadMoov(const std::string &file_path)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00155">mp4_media_parser.cc:155</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1KeySource_html_a4020839c22a550bf71d891bf55087e0b"><div class="ttname"><a href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html#a4020839c22a550bf71d891bf55087e0b">edash_packager::media::KeySource::FetchKeys</a></div><div class="ttdeci">virtual Status FetchKeys(const std::vector< uint8_t > &content_id, const std::string &policy)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd6/key__source_8cc_source.html#l00030">key_source.cc:30</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html">edash_packager::media::KeySource</a></div><div class="ttdoc">KeySource is responsible for encryption key acquisition. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00029">key_source.h:29</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html_a61fc23759071d1445b81cbcc9564c6a4"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a61fc23759071d1445b81cbcc9564c6a4">edash_packager::media::mp4::BoxReader::StartTopLevelBox</a></div><div class="ttdeci">static bool StartTopLevelBox(const uint8_t *buf, const size_t buf_size, FourCC *type, uint64_t *box_size, bool *err) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df1/box__reader_8cc_source.html#l00060">box_reader.cc:60</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser_html_a4ef745c8846adc9e932059a4e91f67c2"><div class="ttname"><a href="../../d8/d0d/classedash__packager_1_1media_1_1mp4_1_1MP4MediaParser.html#a4ef745c8846adc9e932059a4e91f67c2">edash_packager::media::mp4::MP4MediaParser::Init</a></div><div class="ttdeci">void Init(const InitCB &init_cb, const NewSampleCB &new_sample_cb, KeySource *decryption_key_source) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00094">mp4_media_parser.cc:94</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1OffsetByteQueue_html_aa9d018636705cab1759978cd7c6d17da"><div class="ttname"><a href="../../d1/d92/classedash__packager_1_1media_1_1OffsetByteQueue.html#aa9d018636705cab1759978cd7c6d17da">edash_packager::media::OffsetByteQueue::head</a></div><div class="ttdeci">int64_t head()</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d34/offset__byte__queue_8h_source.html#l00052">offset_byte_queue.h:52</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a47194a7cd303640c2a8b689d18ef9701"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a47194a7cd303640c2a8b689d18ef9701">edash_packager::media::File::OpenWithNoBuffering</a></div><div class="ttdeci">static File * OpenWithNoBuffering(const char *file_name, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00151">file.cc:151</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html_aa62e486f463c867b8e2f41ebb4ecea34"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#aa62e486f463c867b8e2f41ebb4ecea34">edash_packager::media::AudioStreamInfo::GetCodecString</a></div><div class="ttdeci">static std::string GetCodecString(AudioCodec codec, uint8_t audio_object_type)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00110">audio_stream_info.cc:110</a></div></div>
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