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<div class="title">segmenter.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 2014 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</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 "packager/media/formats/mp4/segmenter.h"</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 <algorithm></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</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/stl_util.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/base/aes_cryptor.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/buffer_writer.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/key_source.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/media_sample.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/media_stream.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/muxer_options.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/muxer_util.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/event/muxer_listener.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/event/progress_listener.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/formats/mp4/box_definitions.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/formats/mp4/key_rotation_fragmenter.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "packager/version/version.h"</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>mp4 {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> kCencKeyIdSize = 16u;</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// The version of cenc implemented here. CENC 4.</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kCencSchemeVersion = 0x00010000;</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> <span class="comment">// The default KID for key rotation is all 0s.</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">const</span> uint8_t kKeyRotationDefaultKeyId[] = {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  0, 0, 0, 0, 0, 0, 0, 0,</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  0, 0, 0, 0, 0, 0, 0, 0</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> <span class="comment">// Defines protection pattern for pattern-based encryption.</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">struct </span>ProtectionPattern {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  uint8_t crypt_byte_block;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint8_t skip_byte_block;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> };</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> static_assert(arraysize(kKeyRotationDefaultKeyId) == kCencKeyIdSize,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="stringliteral">"cenc_key_id_must_be_size_16"</span>);</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> uint64_t Rescale(uint64_t time_in_old_scale,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uint32_t old_scale,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  uint32_t new_scale) {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(time_in_old_scale) / old_scale * new_scale;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> ProtectionPattern GetProtectionPattern(FourCC protection_scheme,</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  TrackType track_type) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  ProtectionPattern pattern;</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (protection_scheme != FOURCC_cbcs && protection_scheme != FOURCC_cens) {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// Not using pattern encryption.</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  pattern.crypt_byte_block = 0u;</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  pattern.skip_byte_block = 0u;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (track_type != kVideo) {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Tracks other than video are protected using whole-block full-sample</span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// encryption, which is essentially a pattern of 1:0. Note that this may not</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// be the same as the non-pattern based encryption counterparts, e.g. in</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// 'cens' for full sample encryption, the whole sample is encrypted up to</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// the last 16-byte boundary, see 23001-7:2016(E) 9.7; while in 'cenc' for</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// full sample encryption, the last partial 16-byte block is also encrypted,</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// see 23001-7:2016(E) 9.4.2. Another difference is the use of constant iv.</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  pattern.crypt_byte_block = 1u;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  pattern.skip_byte_block = 0u;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// Use 1:9 pattern for video.</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> uint8_t kCryptByteBlock = 1u;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">const</span> uint8_t kSkipByteBlock = 9u;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  pattern.crypt_byte_block = kCryptByteBlock;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  pattern.skip_byte_block = kSkipByteBlock;</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>  <span class="keywordflow">return</span> pattern;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</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="keywordtype">void</span> GenerateSinf(<span class="keyword">const</span> EncryptionKey& encryption_key,</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  FourCC old_type,</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  FourCC protection_scheme,</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  ProtectionPattern pattern,</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  ProtectionSchemeInfo* sinf) {</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  sinf->format.format = old_type;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  DCHECK_NE(protection_scheme, FOURCC_NULL);</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  sinf->type.type = protection_scheme;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  sinf->type.version = kCencSchemeVersion;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">auto</span>& track_encryption = sinf->info.track_encryption;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  track_encryption.default_is_protected = 1;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  DCHECK(!encryption_key.iv.empty());</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (protection_scheme == FOURCC_cbcs) {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// ISO/IEC 23001-7:2016 10.4.1</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// For 'cbcs' scheme, Constant IVs SHALL be used.</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  track_encryption.default_per_sample_iv_size = 0;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  track_encryption.default_constant_iv = encryption_key.iv;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  track_encryption.default_per_sample_iv_size =</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">static_cast<</span>uint8_t<span class="keyword">></span>(encryption_key.iv.size());</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>  track_encryption.default_crypt_byte_block = pattern.crypt_byte_block;</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  track_encryption.default_skip_byte_block = pattern.skip_byte_block;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  track_encryption.default_kid = encryption_key.key_id;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keywordtype">void</span> GenerateEncryptedSampleEntry(<span class="keyword">const</span> EncryptionKey& encryption_key,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">double</span> clear_lead_in_seconds,</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  FourCC protection_scheme,</div>
|
|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ProtectionPattern pattern,</div>
|
|
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  SampleDescription* description) {</div>
|
|
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  DCHECK(description);</div>
|
|
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span> (description->type == kVideo) {</div>
|
|
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  DCHECK_EQ(1u, description->video_entries.size());</div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Add a second entry for clear content if needed.</span></div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (clear_lead_in_seconds > 0)</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  description->video_entries.push_back(description->video_entries[0]);</div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// Convert the first entry to an encrypted entry.</span></div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  VideoSampleEntry& entry = description->video_entries[0];</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  GenerateSinf(encryption_key, entry.format, protection_scheme, pattern,</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  &entry.sinf);</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  entry.format = FOURCC_encv;</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  DCHECK_EQ(kAudio, description->type);</div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  DCHECK_EQ(1u, description->audio_entries.size());</div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// Add a second entry for clear content if needed.</span></div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (clear_lead_in_seconds > 0)</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  description->audio_entries.push_back(description->audio_entries[0]);</div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// Convert the first entry to an encrypted entry.</span></div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  AudioSampleEntry& entry = description->audio_entries[0];</div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  GenerateSinf(encryption_key, entry.format, protection_scheme, pattern,</div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  &entry.sinf);</div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  entry.format = FOURCC_enca;</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> } <span class="comment">// namespace</span></div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> Segmenter::Segmenter(<span class="keyword">const</span> MuxerOptions& options,</div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  std::unique_ptr<FileType> ftyp,</div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  std::unique_ptr<Movie> moov)</div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  : options_(options),</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  ftyp_(std::move(ftyp)),</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  moov_(std::move(moov)),</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  moof_(new MovieFragment()),</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  fragment_buffer_(new BufferWriter()),</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  sidx_(new SegmentIndex()),</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  muxer_listener_(NULL),</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  progress_listener_(NULL),</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  progress_target_(0),</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  accumulated_progress_(0),</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  sample_duration_(0u) {}</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> Segmenter::~Segmenter() { STLDeleteElements(&fragmenters_); }</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a0440c751fd818964397d17330acc7afc"> 166</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa6b32c805c4e662d97244531723ce9eb">Segmenter::Initialize</a>(<span class="keyword">const</span> std::vector<MediaStream*>& streams,</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">MuxerListener</a>* muxer_listener,</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <a class="code" href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html">ProgressListener</a>* progress_listener,</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* encryption_key_source,</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  uint32_t max_sd_pixels,</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">double</span> clear_lead_in_seconds,</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordtype">double</span> crypto_period_duration_in_seconds,</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  FourCC protection_scheme) {</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  DCHECK_LT(0u, streams.size());</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  muxer_listener_ = muxer_listener;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  progress_listener_ = progress_listener;</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  moof_->header.sequence_number = 0;</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  moof_->tracks.resize(streams.size());</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  segment_durations_.resize(streams.size());</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  fragmenters_.resize(streams.size());</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> key_rotation_enabled = crypto_period_duration_in_seconds != 0;</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> kInitialEncryptionInfo = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">for</span> (uint32_t i = 0; i < streams.size(); ++i) {</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  stream_map_[streams[i]] = i;</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  moof_->tracks[i].header.track_id = i + 1;</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (streams[i]->info()->stream_type() == kStreamVideo) {</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// Use the first video stream as the reference stream (which is 1-based).</span></div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (sidx_->reference_id == 0)</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  sidx_->reference_id = i + 1;</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (!encryption_key_source) {</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  fragmenters_[i] = <span class="keyword">new</span> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html">Fragmenter</a>(streams[i]->info(), &moof_->tracks[i]);</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</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>  KeySource::TrackType track_type =</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  GetTrackTypeForEncryption(*streams[i]->info(), max_sd_pixels);</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">SampleDescription</a>& description =</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  moov_->tracks[i].media.information.sample_table.description;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  ProtectionPattern pattern =</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  GetProtectionPattern(protection_scheme, description.type);</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (key_rotation_enabled) {</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// Fill encrypted sample entry with default key.</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a> encryption_key;</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  encryption_key.key_id.assign(</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  kKeyRotationDefaultKeyId,</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  kKeyRotationDefaultKeyId + arraysize(kKeyRotationDefaultKeyId));</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd">AesCryptor::GenerateRandomIv</a>(protection_scheme,</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  &encryption_key.iv)) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INTERNAL_ERROR, <span class="stringliteral">"Failed to generate random iv."</span>);</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  GenerateEncryptedSampleEntry(encryption_key, clear_lead_in_seconds,</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  protection_scheme, pattern, &description);</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (muxer_listener_) {</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  muxer_listener_->OnEncryptionInfoReady(</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  kInitialEncryptionInfo, protection_scheme, encryption_key.key_id,</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  encryption_key.iv, encryption_key.key_system_info);</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> </div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  fragmenters_[i] = <span class="keyword">new</span> <a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">KeyRotationFragmenter</a>(</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  moof_.get(), streams[i]->info(), &moof_->tracks[i],</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  encryption_key_source, track_type,</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  crypto_period_duration_in_seconds * streams[i]->info()->time_scale(),</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  clear_lead_in_seconds * streams[i]->info()->time_scale(),</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  protection_scheme, pattern.crypt_byte_block, pattern.skip_byte_block,</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  muxer_listener_);</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  std::unique_ptr<EncryptionKey> encryption_key(<span class="keyword">new</span> <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>());</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status =</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  encryption_key_source-><a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3">GetKey</a>(track_type, encryption_key.get());</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">if</span> (!status.ok())</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> status;</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">if</span> (encryption_key->iv.empty()) {</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd">AesCryptor::GenerateRandomIv</a>(protection_scheme,</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  &encryption_key->iv)) {</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INTERNAL_ERROR, <span class="stringliteral">"Failed to generate random iv."</span>);</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  GenerateEncryptedSampleEntry(*encryption_key, clear_lead_in_seconds,</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  protection_scheme, pattern, &description);</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (moov_->pssh.empty()) {</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  moov_->pssh.resize(encryption_key->key_system_info.size());</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < encryption_key->key_system_info.size(); i++) {</div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  moov_->pssh[i].raw_box = encryption_key->key_system_info[i].CreateBox();</div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</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> (muxer_listener_) {</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  muxer_listener_->OnEncryptionInfoReady(</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  kInitialEncryptionInfo, protection_scheme, encryption_key->key_id,</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  encryption_key->iv, encryption_key->key_system_info);</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</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> </div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  fragmenters_[i] = <span class="keyword">new</span> <a class="code" href="../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html">EncryptingFragmenter</a>(</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  streams[i]->info(), &moof_->tracks[i], std::move(encryption_key),</div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  clear_lead_in_seconds * streams[i]->info()->time_scale(),</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  protection_scheme, pattern.crypt_byte_block, pattern.skip_byte_block,</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  muxer_listener_);</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</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>  <span class="keywordflow">if</span> (options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4d3d8c1923a2e0f684c2591cd7f4a890">mp4_use_decoding_timestamp_in_timeline</a>) {</div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">for</span> (uint32_t i = 0; i < streams.size(); ++i)</div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  fragmenters_[i]->set_use_decoding_timestamp_in_timeline(<span class="keyword">true</span>);</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>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// Choose the first stream if there is no VIDEO.</span></div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (sidx_->reference_id == 0)</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  sidx_->reference_id = 1;</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  sidx_->timescale = streams[GetReferenceStreamId()]->info()->time_scale();</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// Use media duration as progress target.</span></div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  progress_target_ = streams[GetReferenceStreamId()]->info()->duration();</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="comment">// Use the reference stream's time scale as movie time scale.</span></div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  moov_->header.timescale = sidx_->timescale;</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  moof_->header.sequence_number = 1;</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// Fill in version information.</span></div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keyword">const</span> std::string version = GetPackagerVersion();</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (!version.empty()) {</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  moov_->metadata.handler.handler_type = FOURCC_ID32;</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  moov_->metadata.id3v2.language.code = <span class="stringliteral">"eng"</span>;</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  moov_->metadata.id3v2.private_frame.owner = GetPackagerProjectUrl();</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  moov_->metadata.id3v2.private_frame.value = version;</div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">return</span> DoInitialize();</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> }</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a464a30159b8888a54254356d191947ac"> 296</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa84782877f1afaf9519a552ac3d5d417">Segmenter::Finalize</a>() {</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">for</span> (std::vector<Fragmenter*>::iterator it = fragmenters_.begin();</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  it != fragmenters_.end();</div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  ++it) {</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = FinalizeFragment(<span class="keyword">true</span>, *it);</div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> (!status.ok())</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">return</span> status;</div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="comment">// Set tracks and moov durations.</span></div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// Note that the updated moov box will be written to output file for VOD case</span></div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// only.</span></div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">for</span> (std::vector<Track>::iterator track = moov_->tracks.begin();</div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  track != moov_->tracks.end();</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  ++track) {</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  track->header.duration = Rescale(track->media.header.duration,</div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  track->media.header.timescale,</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  moov_->header.timescale);</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (track->header.duration > moov_->header.duration)</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  moov_->header.duration = track->header.duration;</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>  moov_->extends.header.fragment_duration = moov_->header.duration;</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">return</span> DoFinalize();</div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> }</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a4a1a9e50050e75584ff1087aa318096a"> 322</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa15ccabe1a33c660201ef1d8386067e5">Segmenter::AddSample</a>(<span class="keyword">const</span> <a class="code" href="../../d8/d5c/classshaka_1_1media_1_1MediaStream.html">MediaStream</a>* stream,</div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  scoped_refptr<MediaSample> sample) {</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// Find the fragmenter for this stream.</span></div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  DCHECK(stream);</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  DCHECK(stream_map_.find(stream) != stream_map_.end());</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  uint32_t stream_id = stream_map_[stream];</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html">Fragmenter</a>* fragmenter = fragmenters_[stream_id];</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">// Set default sample duration if it has not been set yet.</span></div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">if</span> (moov_->extends.tracks[stream_id].default_sample_duration == 0) {</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  moov_->extends.tracks[stream_id].default_sample_duration =</div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  sample->duration();</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> </div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (fragmenter->fragment_finalized()) {</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::FRAGMENT_FINALIZED,</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="stringliteral">"Current fragment is finalized already."</span>);</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  }</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordtype">bool</span> finalize_fragment = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (fragmenter->fragment_duration() >=</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a0dbe637b21f1f22f248437b59ad62a38">fragment_duration</a> * stream->info()->time_scale()) {</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> (sample->is_key_frame() || !options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#acb335182d4bd226c1f044cc83705f4fc">fragment_sap_aligned</a>) {</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  finalize_fragment = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  }</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordtype">bool</span> finalize_segment = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordflow">if</span> (segment_durations_[stream_id] >=</div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687">segment_duration</a> * stream->info()->time_scale()) {</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">if</span> (sample->is_key_frame() || !options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a1f1336e9be8b12733fe28da083eaf93f">segment_sap_aligned</a>) {</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  finalize_segment = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  finalize_fragment = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  }</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status;</div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">if</span> (finalize_fragment) {</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  status = FinalizeFragment(finalize_segment, fragmenter);</div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">if</span> (!status.ok())</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">return</span> status;</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  status = fragmenter-><a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a684c1f318ac05e85f4dbf373ea65b7ad">AddSample</a>(sample);</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (!status.ok())</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">return</span> status;</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (sample_duration_ == 0)</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  sample_duration_ = sample->duration();</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  moov_->tracks[stream_id].media.header.duration += sample->duration();</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  segment_durations_[stream_id] += sample->duration();</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  DCHECK_GE(segment_durations_[stream_id], fragmenter->fragment_duration());</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">return</span> Status::OK;</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> }</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> uint32_t Segmenter::GetReferenceTimeScale()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">return</span> moov_->header.timescale;</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"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a7283c64cb63a94264ff8fe405b8ce5c2"> 380</a></span> <span class="keywordtype">double</span> <a class="code" href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a277aeb59ed41fc484a86101d565017ae">Segmenter::GetDuration</a>()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">if</span> (moov_->header.timescale == 0) {</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// Handling the case where this is not properly initialized.</span></div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> 0.0;</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(moov_->header.duration) / moov_->header.timescale;</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> }</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#afd8bb3584c984c711615800ad93642a3"> 389</a></span> <span class="keywordtype">void</span> <a class="code" href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a32dc8b7461252b99fe52384b04e3bca2">Segmenter::UpdateProgress</a>(uint64_t progress) {</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  accumulated_progress_ += progress;</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">if</span> (!progress_listener_) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">if</span> (progress_target_ == 0) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// It might happen that accumulated progress exceeds progress_target due to</span></div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">// computation errors, e.g. rounding error. Cap it so it never reports > 100%</span></div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// progress.</span></div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span> (accumulated_progress_ >= progress_target_) {</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  progress_listener_-><a class="code" href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7">OnProgress</a>(1.0);</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  progress_listener_-><a class="code" href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7">OnProgress</a>(static_cast<double>(accumulated_progress_) /</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  progress_target_);</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> }</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div>
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<div class="line"><a name="l00405"></a><span class="lineno"><a class="line" href="../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#adea4bf88a29660bd8612ae3bc5048068"> 405</a></span> <span class="keywordtype">void</span> Segmenter::SetComplete() {</div>
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<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">if</span> (!progress_listener_) <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  progress_listener_-><a class="code" href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7">OnProgress</a>(1.0);</div>
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<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> }</div>
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<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div>
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<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> Segmenter::FinalizeSegment() {</div>
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<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = DoFinalizeSegment();</div>
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<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div>
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<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// Reset segment information to initial state.</span></div>
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<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  sidx_->references.clear();</div>
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<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  std::vector<uint64_t>::iterator it = segment_durations_.begin();</div>
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<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">for</span> (; it != segment_durations_.end(); ++it)</div>
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<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  *it = 0;</div>
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<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> </div>
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<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> }</div>
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<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div>
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<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> uint32_t Segmenter::GetReferenceStreamId() {</div>
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<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  DCHECK(sidx_);</div>
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<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">return</span> sidx_->reference_id - 1;</div>
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<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> }</div>
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<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div>
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<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> Status Segmenter::FinalizeFragment(<span class="keywordtype">bool</span> finalize_segment,</div>
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<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  Fragmenter* fragmenter) {</div>
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<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  fragmenter->FinalizeFragment();</div>
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<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> </div>
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<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="comment">// Check if all tracks are ready for fragmentation.</span></div>
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<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">for</span> (std::vector<Fragmenter*>::iterator it = fragmenters_.begin();</div>
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<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  it != fragmenters_.end();</div>
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<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  ++it) {</div>
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<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">if</span> (!(*it)->fragment_finalized())</div>
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<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  }</div>
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<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div>
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<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  MediaData mdat;</div>
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<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">// Data offset relative to 'moof': moof size + mdat header size.</span></div>
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<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="comment">// The code will also update box sizes for moof_ and its child boxes.</span></div>
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<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  uint64_t data_offset = moof_->ComputeSize() + mdat.HeaderSize();</div>
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<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="comment">// 'traf' should follow 'mfhd' moof header box.</span></div>
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<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  uint64_t next_traf_position = moof_->HeaderSize() + moof_->header.box_size();</div>
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<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < moof_->tracks.size(); ++i) {</div>
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<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  TrackFragment& traf = moof_->tracks[i];</div>
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<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordflow">if</span> (traf.auxiliary_offset.offsets.size() > 0) {</div>
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<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  DCHECK_EQ(traf.auxiliary_offset.offsets.size(), 1u);</div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  DCHECK(!traf.sample_encryption.sample_encryption_entries.empty());</div>
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<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div>
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<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  next_traf_position += traf.box_size();</div>
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<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="comment">// SampleEncryption 'senc' box should be the last box in 'traf'.</span></div>
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<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// |auxiliary_offset| should point to the data of SampleEncryption.</span></div>
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<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  traf.auxiliary_offset.offsets[0] =</div>
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<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  next_traf_position - traf.sample_encryption.box_size() +</div>
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<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  traf.sample_encryption.HeaderSize() +</div>
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<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keyword">sizeof</span>(uint32_t); <span class="comment">// for sample count field in 'senc'</span></div>
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<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div>
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<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  traf.runs[0].data_offset = data_offset + mdat.data_size;</div>
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<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  mdat.data_size += fragmenters_[i]->data()->Size();</div>
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<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  }</div>
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<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
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<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="comment">// Generate segment reference.</span></div>
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<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  sidx_->references.resize(sidx_->references.size() + 1);</div>
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<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  fragmenters_[GetReferenceStreamId()]->GenerateSegmentReference(</div>
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<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  &sidx_->references[sidx_->references.size() - 1]);</div>
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<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  sidx_->references[sidx_->references.size() - 1].referenced_size =</div>
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<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  data_offset + mdat.data_size;</div>
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<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
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<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="comment">// Write the fragment to buffer.</span></div>
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<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  moof_->Write(fragment_buffer_.get());</div>
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<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  mdat.WriteHeader(fragment_buffer_.get());</div>
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<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">for</span> (Fragmenter* fragmenter : fragmenters_)</div>
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<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  fragment_buffer_->AppendBuffer(*fragmenter->data());</div>
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<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
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<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">// Increase sequence_number for next fragment.</span></div>
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  ++moof_->header.sequence_number;</div>
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div>
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<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">if</span> (finalize_segment)</div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">return</span> FinalizeSegment();</div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div>
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<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> }</div>
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<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div>
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<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> } <span class="comment">// namespace mp4</span></div>
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<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_acb335182d4bd226c1f044cc83705f4fc"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#acb335182d4bd226c1f044cc83705f4fc">shaka::media::MuxerOptions::fragment_sap_aligned</a></div><div class="ttdeci">bool fragment_sap_aligned</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00043">muxer_options.h:43</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1webm_1_1Segmenter_html_a277aeb59ed41fc484a86101d565017ae"><div class="ttname"><a href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a277aeb59ed41fc484a86101d565017ae">shaka::media::webm::Segmenter::GetDuration</a></div><div class="ttdeci">float GetDuration() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d53/webm_2segmenter_8cc_source.html#l00194">segmenter.cc:194</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1webm_1_1Segmenter_html_aa15ccabe1a33c660201ef1d8386067e5"><div class="ttname"><a href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa15ccabe1a33c660201ef1d8386067e5">shaka::media::webm::Segmenter::AddSample</a></div><div class="ttdeci">Status AddSample(scoped_refptr< MediaSample > sample)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d53/webm_2segmenter_8cc_source.html#l00120">segmenter.cc:120</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_a684c1f318ac05e85f4dbf373ea65b7ad"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a684c1f318ac05e85f4dbf373ea65b7ad">shaka::media::mp4::Fragmenter::AddSample</a></div><div class="ttdeci">virtual Status AddSample(scoped_refptr< MediaSample > sample)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00046">fragmenter.cc:46</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a4d3d8c1923a2e0f684c2591cd7f4a890"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4d3d8c1923a2e0f684c2591cd7f4a890">shaka::media::MuxerOptions::mp4_use_decoding_timestamp_in_timeline</a></div><div class="ttdeci">bool mp4_use_decoding_timestamp_in_timeline</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00057">muxer_options.h:57</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a1f1336e9be8b12733fe28da083eaf93f"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a1f1336e9be8b12733fe28da083eaf93f">shaka::media::MuxerOptions::segment_sap_aligned</a></div><div class="ttdeci">bool segment_sap_aligned</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00038">muxer_options.h:38</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1KeySource_html_a994eb66cf09d8b08fd1c964f6afd3ab3"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3">shaka::media::KeySource::GetKey</a></div><div class="ttdeci">virtual Status GetKey(TrackType track_type, EncryptionKey *key)=0</div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ProgressListener_html"><div class="ttname"><a href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html">shaka::media::ProgressListener</a></div><div class="ttdoc">This class listens to progress updates events. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d9d/progress__listener_8h_source.html#l00020">progress_listener.h:20</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleDescription_html"><div class="ttname"><a href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">shaka::media::mp4::SampleDescription</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00392">box_definitions.h:392</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html">shaka::media::mp4::Fragmenter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/dd1/fragmenter_8h_source.html#l00031">fragmenter.h:31</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1EncryptionKey_html"><div class="ttname"><a href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">shaka::media::EncryptionKey</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00019">key_source.h:19</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AesCryptor_html_a40d9a82d274d6fbaee5346328f11dedd"><div class="ttname"><a href="../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd">shaka::media::AesCryptor::GenerateRandomIv</a></div><div class="ttdeci">static bool GenerateRandomIv(FourCC protection_scheme, std::vector< uint8_t > *iv)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d55/aes__cryptor_8cc_source.html#l00109">aes_cryptor.cc:109</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1webm_1_1Segmenter_html_aa6b32c805c4e662d97244531723ce9eb"><div class="ttname"><a href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa6b32c805c4e662d97244531723ce9eb">shaka::media::webm::Segmenter::Initialize</a></div><div class="ttdeci">Status Initialize(std::unique_ptr< MkvWriter > writer, StreamInfo *info, ProgressListener *progress_listener, MuxerListener *muxer_listener, KeySource *encryption_key_source, uint32_t max_sd_pixels, double clear_lead_in_seconds)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d53/webm_2segmenter_8cc_source.html#l00051">segmenter.cc:51</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter_html"><div class="ttname"><a href="../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html">shaka::media::mp4::EncryptingFragmenter</a></div><div class="ttdoc">EncryptingFragmenter generates MP4 fragments with sample encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="../../d1/dcb/encrypting__fragmenter_8h_source.html#l00028">encrypting_fragmenter.h:28</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a0dbe637b21f1f22f248437b59ad62a38"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a0dbe637b21f1f22f248437b59ad62a38">shaka::media::MuxerOptions::fragment_duration</a></div><div class="ttdeci">double fragment_duration</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00034">muxer_options.h:34</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ProgressListener_html_a9c32e569c50194a106f7e9242749e7e7"><div class="ttname"><a href="../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7">shaka::media::ProgressListener::OnProgress</a></div><div class="ttdeci">virtual void OnProgress(double progress)=0</div></div>
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<div class="ttc" id="classshaka_1_1media_1_1Status_html"><div class="ttname"><a href="../../d0/d93/classshaka_1_1media_1_1Status.html">shaka::media::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d13/status_8h_source.html#l00075">status.h:75</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1webm_1_1Segmenter_html_aa84782877f1afaf9519a552ac3d5d417"><div class="ttname"><a href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa84782877f1afaf9519a552ac3d5d417">shaka::media::webm::Segmenter::Finalize</a></div><div class="ttdeci">Status Finalize()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d53/webm_2segmenter_8cc_source.html#l00109">segmenter.cc:109</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">shaka::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#l00030">key_source.h:30</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a4e98ad5fc7bbc2df0cb95df3f1db9687"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687">shaka::media::MuxerOptions::segment_duration</a></div><div class="ttdeci">double segment_duration</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00030">muxer_options.h:30</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1webm_1_1Segmenter_html_a32dc8b7461252b99fe52384b04e3bca2"><div class="ttname"><a href="../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a32dc8b7461252b99fe52384b04e3bca2">shaka::media::webm::Segmenter::UpdateProgress</a></div><div class="ttdeci">void UpdateProgress(uint64_t progress)</div><div class="ttdoc">Update segmentation progress using ProgressListener. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d53/webm_2segmenter_8cc_source.html#l00259">segmenter.cc:259</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter_html"><div class="ttname"><a href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">shaka::media::mp4::KeyRotationFragmenter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/d22/key__rotation__fragmenter_8h_source.html#l00023">key_rotation_fragmenter.h:23</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1MediaStream_html"><div class="ttname"><a href="../../d8/d5c/classshaka_1_1media_1_1MediaStream.html">shaka::media::MediaStream</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d93/media__stream_8h_source.html#l00026">media_stream.h:26</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">shaka::media::MuxerListener</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00030">muxer_listener.h:30</a></div></div>
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