2015-10-16 00:33:37 +00:00
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2015-10-16 00:33:37 +00:00
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< li class = "navelem" > < a class = "el" href = "../../dir_39dc0668bd5a501998f94e8b4e546c71.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_65f7acfa8cf3a5f1edc11faa2428b914.html" > formats< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_3e9291fd7a18fdecc763294cb2628910.html" > mp4< / a > < / li > < / ul >
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< div class = "title" > mp4_media_parser.cc< / div > < / div >
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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 >
< 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 >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // found in the LICENSE file.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < / div >
< 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 >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < / div >
2016-08-23 20:33:23 +00:00
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > #include < algorithm> < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include " packager/base/callback.h" < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/callback_helpers.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/logging.h" < / span > < / div >
2017-01-26 03:38:47 +00:00
< 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 >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/media/base/audio_stream_info.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " packager/media/base/buffer_reader.h" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " packager/media/base/decrypt_config.h" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " packager/media/base/key_source.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " packager/media/base/macros.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " packager/media/base/media_sample.h" < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " packager/media/base/rcheck.h" < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " packager/media/base/video_stream_info.h" < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " packager/media/codecs/avc_decoder_configuration_record.h" < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " packager/media/codecs/es_descriptor.h" < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " packager/media/codecs/hevc_decoder_configuration_record.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " packager/media/codecs/vp_codec_configuration_record.h" < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "preprocessor" > #include " packager/media/file/file.h" < / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " packager/media/file/file_closer.h" < / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/box_definitions.h" < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/box_reader.h" < / span > < / div >
< 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 >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keyword" > namespace < / span > mp4 {< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   uint64_t Rescale(uint64_t time_in_old_scale,< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   uint32_t old_scale,< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   uint32_t new_scale) {< / div >
< 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 >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   }< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   Codec FourCCToCodec(FourCC fourcc) {< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keywordflow" > switch< / span > (fourcc) {< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordflow" > case< / span > FOURCC_avc1:< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > return< / span > kCodecH264;< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordflow" > case< / span > FOURCC_hev1:< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > return< / span > kCodecHEV1;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > case< / span > FOURCC_hvc1:< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordflow" > return< / span > kCodecHVC1;< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keywordflow" > case< / span > FOURCC_vp08:< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keywordflow" > return< / span > kCodecVP8;< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keywordflow" > case< / span > FOURCC_vp09:< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keywordflow" > return< / span > kCodecVP9;< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "keywordflow" > case< / span > FOURCC_vp10:< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keywordflow" > return< / span > kCodecVP10;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordflow" > case< / span > FOURCC_Opus:< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keywordflow" > return< / span > kCodecOpus;< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsc:< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordflow" > return< / span > kCodecDTSC;< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsh:< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordflow" > return< / span > kCodecDTSH;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsl:< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordflow" > return< / span > kCodecDTSL;< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtse:< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordflow" > return< / span > kCodecDTSE;< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsp:< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "keywordflow" > return< / span > kCodecDTSP;< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsm:< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keywordflow" > return< / span > kCodecDTSM;< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > case< / span > FOURCC_ac_3:< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > return< / span > kCodecAC3;< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "keywordflow" > case< / span > FOURCC_ec_3:< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keywordflow" > return< / span > kCodecEAC3;< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordflow" > return< / span > kUnknownCodec;< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   }< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   }< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "comment" > // Default DTS audio number of channels for 5.1 channel layout.< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keyword" > const< / span > uint8_t kDtsAudioNumChannels = 6;< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keyword" > const< / span > uint64_t kNanosecondsPerSecond = 1000000000ull;< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   MP4MediaParser::MP4MediaParser()< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   : state_(kWaitingForInit),< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   decryption_key_source_(NULL),< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   moof_head_(0),< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   mdat_tail_(0) {}< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   MP4MediaParser::~MP4MediaParser() {}< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > < a class = "line" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#acc87b9752a7f6e8c739109acbc02b69d" > 94< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#acc87b9752a7f6e8c739109acbc02b69d" > MP4MediaParser::Init< / a > (< span class = "keyword" > const< / span > InitCB& init_cb,< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keyword" > const< / span > NewSampleCB& new_sample_cb,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html" > KeySource< / a > * decryption_key_source) {< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   DCHECK_EQ(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   DCHECK(init_cb_.is_null());< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   DCHECK(!init_cb.is_null());< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   DCHECK(!new_sample_cb.is_null());< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   ChangeState(kParsingBoxes);< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   init_cb_ = init_cb;< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   new_sample_cb_ = new_sample_cb;< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   decryption_key_source_ = decryption_key_source;< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordflow" > if< / span > (decryption_key_source)< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   decryptor_source_.reset(< span class = "keyword" > new< / span > < a class = "code" href = "../../d7/d59/classshaka_1_1media_1_1DecryptorSource.html" > DecryptorSource< / a > (decryption_key_source));< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   }< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordtype" > void< / span > MP4MediaParser::Reset() {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   queue_.Reset();< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   runs_.reset();< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   moof_head_ = 0;< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   mdat_tail_ = 0;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   }< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > < a class = "line" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a6f26e0d76aeda601fa87190901de27ea" > 117< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a6f26e0d76aeda601fa87190901de27ea" > MP4MediaParser::Flush< / a > () {< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   DCHECK_NE(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   Reset();< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   ChangeState(kParsingBoxes);< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   }< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > < a class = "line" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0" > 124< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0" > MP4MediaParser::Parse< / a > (< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > int< / span > size) {< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   DCHECK_NE(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keywordflow" > if< / span > (state_ == kError)< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   queue_.Push(buf, size);< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "keywordtype" > bool< / span > result, err = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keywordflow" > do< / span > {< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordflow" > if< / span > (state_ == kParsingBoxes) {< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   result = ParseBox(& err);< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   DCHECK_EQ(kEmittingSamples, state_);< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   result = EnqueueSample(& err);< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordflow" > if< / span > (result) {< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   int64_t max_clear = runs_-> GetMaxClearOffset() + moof_head_;< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   err = !ReadAndDiscardMDATsUntil(max_clear);< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   }< / 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 >   } < span class = "keywordflow" > while< / span > (result & & !err);< / 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 = "keywordflow" > if< / span > (err) {< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   DLOG(ERROR) < < < span class = "stringliteral" > " Error while parsing MP4" < / span > ;< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   moov_.reset();< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   Reset();< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   ChangeState(kError);< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   }< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   }< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > < a class = "line" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#af0ec1b44528a2997c0d548bee47862cf" > 158< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#af0ec1b44528a2997c0d548bee47862cf" > MP4MediaParser::LoadMoov< / a > (< span class = "keyword" > const< / span > std::string& file_path) {< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   std::unique_ptr< File, FileCloser> file(< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < a class = "code" href = "../../d3/d61/classshaka_1_1media_1_1File.html#ad1e9fc834093c8b35c0f8c1957974fda" > File::OpenWithNoBuffering< / a > (file_path.c_str(), < span class = "stringliteral" > " r" < / span > ));< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordflow" > if< / span > (!file) {< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unable to open media file ' " < / span > < < file_path < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   }< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordflow" > if< / span > (!file-> Seek(0)) {< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   LOG(WARNING) < < < span class = "stringliteral" > " Filesystem does not support seeking on file ' " < / span > < < file_path< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   }< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   uint64_t file_position(0);< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < span class = "keywordtype" > bool< / span > mdat_seen(< span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keyword" > const< / span > uint32_t kBoxHeaderReadSize(16);< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   std::vector< uint8_t> buffer(kBoxHeaderReadSize);< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   int64_t bytes_read = file-> Read(& buffer[0], kBoxHeaderReadSize);< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordflow" > if< / span > (bytes_read == 0) {< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / 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 = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   }< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keywordflow" > if< / span > (bytes_read < kBoxHeaderReadSize) {< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error reading media file ' " < / span > < < file_path < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   uint64_t box_size;< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   FourCC box_type;< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "keywordtype" > bool< / span > err;< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > BoxReader::StartBox< / a > (& buffer[0], kBoxHeaderReadSize, & box_type,< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   & box_size, & err)) {< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Could not start box from file ' " < / span > < < file_path < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / 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 > (box_type == FOURCC_mdat) {< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   mdat_seen = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (box_type == FOURCC_moov) {< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "keywordflow" > if< / span > (!mdat_seen) {< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "comment" > // ' moov' is before ' mdat' . Nothing to do.< / span > < / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   }< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < span class = "comment" > // ' mdat' before ' moov' . Read and parse ' moov' .< / span > < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0" > Parse< / a > (& buffer[0], bytes_read)) {< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error parsing mp4 file ' " < / span > < < file_path < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / 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 >   uint64_t bytes_to_read = box_size - bytes_read;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   buffer.resize(bytes_to_read);< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "keywordflow" > while< / span > (bytes_to_read > 0) {< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   bytes_read = file-> Read(& buffer[0], bytes_to_read);< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "keywordflow" > if< / span > (bytes_read < = 0) {< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error reading ' moov' contents from file ' " < / span > < < file_path< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   }< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0" > Parse< / a > (& buffer[0], bytes_read)) {< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error parsing mp4 file ' " < / span > < < file_path < < < span class = "stringliteral" > " ' " < / span > ;< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / 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 >   bytes_to_read -= bytes_read;< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   }< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   queue_.Reset(); < span class = "comment" > // So that we don' t need to adjust data offsets.< / span > < / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   mdat_tail_ = 0; < span class = "comment" > // So it will skip boxes until mdat.< / span > < / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "keywordflow" > break< / span > ; < span class = "comment" > // Done.< / span > < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   }< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   file_position += box_size;< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < span class = "keywordflow" > if< / span > (!file-> Seek(file_position)) {< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / 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 = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / 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 >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / 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 >   < span class = "keywordtype" > bool< / span > MP4MediaParser::ParseBox(< span class = "keywordtype" > bool< / span > * err) {< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "keyword" > const< / span > uint8_t* buf;< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < span class = "keywordtype" > int< / span > size;< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   queue_.Peek(& buf, & size);< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "keywordflow" > if< / span > (!size)< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   std::unique_ptr< BoxReader> reader(< a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#ae348922875d67128d2af6d88b692e205" > BoxReader::ReadBox< / a > (buf, size, err));< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > if< / span > (reader.get() == NULL)< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   < span class = "keywordflow" > if< / span > (reader-> type() == FOURCC_mdat) {< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / 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 = "l00246" > < / a > < span class = "lineno" > 246< / span >   DCHECK(!moov_);< / 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 >   NOTIMPLEMENTED() < < < span class = "stringliteral" > " Files with MDAT before MOOV is not supported yet." < / span > ;< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   }< / 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 >   < span class = "comment" > // Set up mdat offset for ReadMDATsUntil().< / span > < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   mdat_tail_ = queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a1dfd11c891dd3b3171002cbc484eacdd" > head< / a > () + reader-> size();< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < span class = "keywordflow" > if< / span > (reader-> type() == FOURCC_moov) {< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   *err = !ParseMoov(reader.get());< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (reader-> type() == FOURCC_moof) {< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   moof_head_ = queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a1dfd11c891dd3b3171002cbc484eacdd" > head< / a > ();< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   *err = !ParseMoof(reader.get());< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   < / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < span class = "comment" > // Return early to avoid evicting ' moof' data from queue. Auxiliary info may< / span > < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   < span class = "comment" > // be located anywhere in the file, including inside the ' moof' itself.< / span > < / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < span class = "comment" > // (Since ' default-base-is-moof' is mandated, no data references can come< / span > < / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   < span class = "comment" > // before the head of the ' moof' , so keeping this box around is sufficient.)< / span > < / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < span class = "keywordflow" > return< / span > !(*err);< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   VLOG(2) < < < span class = "stringliteral" > " Skipping top-level box: " < / span > < < FourCCToString(reader-> type());< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   }< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   queue_.Pop(static_cast< int> (reader-> size()));< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "keywordflow" > return< / span > !(*err);< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   }< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < span class = "keywordtype" > bool< / span > MP4MediaParser::ParseMoov(BoxReader* reader) {< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < span class = "keywordflow" > if< / span > (moov_)< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / 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 = "l00278" > < / a > < span class = "lineno" > 278< / span >   < / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   moov_.reset(< span class = "keyword" > new< / span > Movie);< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   RCHECK(moov_-> Parse(reader));< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   runs_.reset();< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   < / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   std::vector< std::shared_ptr< StreamInfo> > streams;< / 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 = "keywordflow" > for< / span > (std::vector< Track> ::const_iterator track = moov_-> tracks.begin();< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   track != moov_-> tracks.end(); ++track) {< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < span class = "keyword" > const< / span > uint32_t timescale = track-> media.header.timescale;< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < span class = "comment" > // Calculate duration (based on timescale).< / span > < / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   uint64_t duration = 0;< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "keywordflow" > if< / span > (track-> media.header.duration > 0) {< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   duration = track-> media.header.duration;< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (moov_-> extends.header.fragment_duration > 0) {< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   DCHECK(moov_-> header.timescale != 0);< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   duration = Rescale(moov_-> extends.header.fragment_duration,< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   moov_-> header.timescale,< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   timescale);< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (moov_-> header.duration > 0 & & < / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   moov_-> header.duration != std::numeric_limits< uint64_t> ::max()) {< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   DCHECK(moov_-> header.timescale != 0);< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   duration =< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   Rescale(moov_-> header.duration, moov_-> header.timescale, timescale);< / 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 = "keyword" > const< / span > SampleDescription& samp_descr =< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   track-> media.information.sample_table.description;< / 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 = "keywordtype" > size_t< / span > desc_idx = 0;< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "comment" > // Read sample description index from mvex if it exists otherwise read< / span > < / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   < span class = "comment" > // from the first entry in Sample To Chunk box.< / span > < / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keywordflow" > if< / span > (moov_-> extends.tracks.size() > 0) {< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / 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 = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "keyword" > const< / span > TrackExtends& trex = moov_-> extends.tracks[t];< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < span class = "keywordflow" > if< / span > (trex.track_id == track-> header.track_id) {< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   desc_idx = trex.default_sample_description_index;< / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "keywordflow" > break< / span > ;< / 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 >   }< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < span class = "keyword" > const< / span > std::vector< ChunkInfo> & chunk_info =< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   track-> media.information.sample_table.sample_to_chunk.chunk_info;< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   RCHECK(chunk_info.size() > 0);< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   desc_idx = chunk_info[0].sample_description_index;< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   }< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   RCHECK(desc_idx > 0);< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   desc_idx -= 1; < span class = "comment" > // BMFF descriptor index is one-based< / span > < / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < span class = "keywordflow" > if< / span > (samp_descr.type == kAudio) {< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   RCHECK(!samp_descr.audio_entries.empty());< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   < span class = "comment" > // It is not uncommon to find otherwise-valid files with incorrect sample< / span > < / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < span class = "comment" > // description indices, so we fail gracefully in that case.< / span > < / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keywordflow" > if< / span > (desc_idx > = samp_descr.audio_entries.size())< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   desc_idx = 0;< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   < span class = "keyword" > const< / span > AudioSampleEntry& entry = samp_descr.audio_entries[desc_idx];< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < span class = "keyword" > const< / span > FourCC actual_format = entry.GetActualFormat();< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   Codec codec = FourCCToCodec(actual_format);< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   uint8_t num_channels = 0;< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   uint32_t sampling_frequency = 0;< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   uint64_t codec_delay_ns = 0;< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   uint8_t audio_object_type = 0;< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   uint32_t max_bitrate = 0;< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   uint32_t avg_bitrate = 0;< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   std::vector< uint8_t> codec_config;< / 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 = "keywordflow" > switch< / span > (actual_format) {< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordflow" > case< / span > FOURCC_mp4a:< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "comment" > // Check if it is MPEG4 AAC defined in ISO 14496 Part 3 or< / span > < / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   < span class = "comment" > // supported MPEG2 AAC variants.< / span > < / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < span class = "keywordflow" > if< / span > (entry.esds.es_descriptor.IsAAC()) {< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   codec = kCodecAAC;< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keyword" > const< / span > AACAudioSpecificConfig& aac_audio_specific_config =< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   entry.esds.aac_audio_specific_config;< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   num_channels = aac_audio_specific_config.num_channels();< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   sampling_frequency = aac_audio_specific_config.frequency();< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   audio_object_type = aac_audio_specific_config.audio_object_type();< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   codec_config = entry.esds.es_descriptor.decoder_specific_info();< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (entry.esds.es_descriptor.IsDTS()) {< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   ObjectType audio_type = entry.esds.es_descriptor.object_type();< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "keywordflow" > switch< / span > (audio_type) {< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   < span class = "keywordflow" > case< / span > kDTSC:< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   codec = kCodecDTSC;< / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < span class = "keywordflow" > case< / span > kDTSE:< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   codec = kCodecDTSE;< / 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 > kDTSH:< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   codec = kCodecDTSH;< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < span class = "keywordflow" > case< / span > kDTSL:< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   codec = kCodecDTSL;< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unsupported audio type " < / span > < < audio_type< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < < < span class = "stringliteral" > " in stsd box." < / span > ;< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   }< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   num_channels = entry.esds.aac_audio_specific_config.num_channels();< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "comment" > // For dts audio in esds, current supported number of channels is 6< / span > < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "comment" > // as the only supported channel layout is 5.1.< / span > < / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "keywordflow" > if< / span > (num_channels != kDtsAudioNumChannels) {< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unsupported channel count " < / span > < < num_channels< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   < < < span class = "stringliteral" > " for audio type " < / span > < < audio_type < < < span class = "stringliteral" > " ." < / span > ;< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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" > 389< / span >   sampling_frequency = entry.samplerate;< / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   max_bitrate = entry.esds.es_descriptor.max_bitrate();< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   avg_bitrate = entry.esds.es_descriptor.avg_bitrate();< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unsupported audio format 0x" < / span > < < std::hex< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < < actual_format < < < span class = "stringliteral" > " in stsd box." < / span > ;< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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" > break< / span > ;< / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsc:< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsh:< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsl:< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtse:< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   < span class = "keywordflow" > case< / span > FOURCC_dtsm:< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   codec_config = entry.ddts.extra_data;< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   max_bitrate = entry.ddts.max_bitrate;< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   avg_bitrate = entry.ddts.avg_bitrate;< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   num_channels = entry.channelcount;< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   sampling_frequency = entry.samplerate;< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < span class = "keywordflow" > case< / span > FOURCC_ac_3:< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   codec_config = entry.dac3.data;< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   num_channels = entry.channelcount;< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   sampling_frequency = entry.samplerate;< / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < span class = "keywordflow" > case< / span > FOURCC_ec_3:< / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   codec_config = entry.dec3.data;< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   num_channels = entry.channelcount;< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   sampling_frequency = entry.samplerate;< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   < span class = "keywordflow" > case< / span > FOURCC_Opus:< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   codec_config = entry.dops.opus_identification_header;< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   num_channels = entry.channelcount;< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   sampling_frequency = entry.samplerate;< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   RCHECK(sampling_frequency != 0);< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   codec_delay_ns =< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   entry.dops.preskip * kNanosecondsPerSecond / sampling_frequency;< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unsupported audio format 0x" < / span > < < std::hex< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   < < actual_format < < < span class = "stringliteral" > " in stsd box." < / span > ;< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   }< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   < / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   < span class = "comment" > // Extract possible seek preroll.< / span > < / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   uint64_t seek_preroll_ns = 0;< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & sample_group_description :< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   track-> media.information.sample_table.sample_group_descriptions) {< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "keywordflow" > if< / span > (sample_group_description.grouping_type != FOURCC_roll)< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & audio_roll_recovery_entries =< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   sample_group_description.audio_roll_recovery_entries;< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < span class = "keywordflow" > if< / span > (audio_roll_recovery_entries.size() != 1) {< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   LOG(WARNING) < < < span class = "stringliteral" > " Unexpected number of entries in " < / span > < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   < span class = "stringliteral" > " SampleGroupDescription table with grouping type " < / span > < / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "stringliteral" > " ' roll' ." < / span > ;< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   < span class = "keywordflow" > break< / span > ;< / 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 = "keyword" > const< / span > int16_t roll_distance_in_samples =< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   audio_roll_recovery_entries[0].roll_distance;< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   < span class = "keywordflow" > if< / span > (roll_distance_in_samples < 0) {< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   RCHECK(sampling_frequency != 0);< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   seek_preroll_ns = kNanosecondsPerSecond *< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   (-roll_distance_in_samples) / sampling_frequency;< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   LOG(WARNING)< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   < < < span class = "stringliteral" > " Roll distance is supposed to be negative, but seeing " < / span > < / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   < < roll_distance_in_samples;< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   }< / 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 >   < / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_encrypted =< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   entry.sinf.info.track_encryption.default_is_protected == 1;< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   DVLOG(1) < < < span class = "stringliteral" > " is_audio_track_encrypted_: " < / span > < < is_encrypted;< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   streams.emplace_back(< span class = "keyword" > new< / span > AudioStreamInfo(< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   track-> header.track_id, timescale, duration, codec,< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   < a class = "code" href = "../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42" > AudioStreamInfo::GetCodecString< / a > (codec, audio_object_type),< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   codec_config.data(), codec_config.size(), entry.samplesize,< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   num_channels, sampling_frequency, seek_preroll_ns, codec_delay_ns,< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   max_bitrate, avg_bitrate, track-> media.header.language.code,< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   is_encrypted));< / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   }< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < span class = "keywordflow" > if< / span > (samp_descr.type == kVideo) {< / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   RCHECK(!samp_descr.video_entries.empty());< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   < span class = "keywordflow" > if< / span > (desc_idx > = samp_descr.video_entries.size())< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   desc_idx = 0;< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   < span class = "keyword" > const< / span > VideoSampleEntry& entry = samp_descr.video_entries[desc_idx];< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   < / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   uint32_t coded_width = entry.width;< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   uint32_t coded_height = entry.height;< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   uint32_t pixel_width = entry.pixel_aspect.h_spacing;< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   uint32_t pixel_height = entry.pixel_aspect.v_spacing;< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < span class = "keywordflow" > if< / span > (pixel_width == 0 & & pixel_height == 0) {< / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   pixel_width = 1;< / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   pixel_height = 1;< / 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 >   std::string codec_string;< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   uint8_t nalu_length_size = 0;< / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   < / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < span class = "keyword" > const< / span > FourCC actual_format = entry.GetActualFormat();< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   < span class = "keyword" > const< / span > Codec video_codec = FourCCToCodec(actual_format);< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordflow" > switch< / span > (actual_format) {< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   < span class = "keywordflow" > case< / span > FOURCC_avc1: {< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   AVCDecoderConfigurationRecord avc_config;< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   < span class = "keywordflow" > if< / span > (!avc_config.Parse(entry.codec_configuration.data)) {< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to parse avcc." < / span > ;< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   }< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   codec_string = avc_config.GetCodecString();< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   nalu_length_size = avc_config.nalu_length_size();< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   < / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < span class = "keywordflow" > if< / span > (coded_width != avc_config.coded_width() ||< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   coded_height != avc_config.coded_height()) {< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   LOG(WARNING) < < < span class = "stringliteral" > " Resolution in VisualSampleEntry (" < / span > < < coded_width< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   < < < span class = "stringliteral" > " ," < / span > < < coded_height< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   < < < span class = "stringliteral" > " ) does not match with resolution in " < / span > < / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   < span class = "stringliteral" > " AVCDecoderConfigurationRecord (" < / span > < / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   < < avc_config.coded_width() < < < span class = "stringliteral" > " ," < / span > < / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < < avc_config.coded_height()< / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < < < span class = "stringliteral" > " ). Use AVCDecoderConfigurationRecord." < / span > ;< / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   coded_width = avc_config.coded_width();< / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   coded_height = avc_config.coded_height();< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   }< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   < span class = "keywordflow" > if< / span > (pixel_width != avc_config.pixel_width() ||< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   pixel_height != avc_config.pixel_height()) {< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   LOG_IF(WARNING, pixel_width != 1 || pixel_height != 1)< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   < < < span class = "stringliteral" > " Pixel aspect ratio in PASP box (" < / span > < < pixel_width < < < span class = "stringliteral" > " ," < / span > < / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   < < pixel_height< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   < < < span class = "stringliteral" > " ) does not match with SAR in AVCDecoderConfigurationRecord " < / span > < / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   < span class = "stringliteral" > " (" < / span > < / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   < < avc_config.pixel_width() < < < span class = "stringliteral" > " ," < / span > < < avc_config.pixel_height()< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   < < < span class = "stringliteral" > " ). Use AVCDecoderConfigurationRecord." < / span > ;< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   pixel_width = avc_config.pixel_width();< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   pixel_height = avc_config.pixel_height();< / div >
< div class = "line" > < a name = "l00530" > < / a > < span class = "lineno" > 530< / span >   }< / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   }< / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   < span class = "keywordflow" > case< / span > FOURCC_hev1:< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   < span class = "keywordflow" > case< / span > FOURCC_hvc1: {< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   HEVCDecoderConfigurationRecord hevc_config;< / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   < span class = "keywordflow" > if< / span > (!hevc_config.Parse(entry.codec_configuration.data)) {< / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to parse hevc." < / span > ;< / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   codec_string = hevc_config.GetCodecString(video_codec);< / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   nalu_length_size = hevc_config.nalu_length_size();< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < span class = "keywordflow" > break< / 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 >   < span class = "keywordflow" > case< / span > FOURCC_vp08:< / div >
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   < span class = "keywordflow" > case< / span > FOURCC_vp09:< / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   < span class = "keywordflow" > case< / span > FOURCC_vp10: {< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   VPCodecConfigurationRecord vp_config;< / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   < span class = "keywordflow" > if< / span > (!vp_config.ParseMP4(entry.codec_configuration.data)) {< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to parse vpcc." < / span > ;< / 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 >   codec_string = vp_config.GetCodecString(video_codec);< / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   < span class = "keywordflow" > break< / 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 >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unsupported video format " < / span > < / div >
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < < FourCCToString(actual_format) < < < span class = "stringliteral" > " in stsd box." < / span > ;< / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_encrypted =< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   entry.sinf.info.track_encryption.default_is_protected == 1;< / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   DVLOG(1) < < < span class = "stringliteral" > " is_video_track_encrypted_: " < / span > < < is_encrypted;< / div >
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   std::shared_ptr< VideoStreamInfo> video_stream_info(< span class = "keyword" > new< / span > VideoStreamInfo(< / div >
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   track-> header.track_id, timescale, duration, video_codec,< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   codec_string, entry.codec_configuration.data.data(),< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   entry.codec_configuration.data.size(), coded_width, coded_height,< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   pixel_width, pixel_height,< / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   0, < span class = "comment" > // trick_play_rate< / span > < / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   nalu_length_size, track-> media.header.language.code, is_encrypted));< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   < / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   < span class = "comment" > // Set pssh raw data if it has.< / span > < / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   < span class = "keywordflow" > if< / span > (moov_-> pssh.size() > 0) {< / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   std::vector< uint8_t> pssh_raw_data;< / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & pssh : moov_-> pssh) {< / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   pssh_raw_data.insert(pssh_raw_data.end(), pssh.raw_box.begin(),< / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   pssh.raw_box.end());< / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   }< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   video_stream_info-> set_eme_init_data(pssh_raw_data.data(),< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   pssh_raw_data.size());< / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   }< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   < / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   streams.push_back(video_stream_info);< / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   }< / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   }< / 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 >   init_cb_.Run(streams);< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   < span class = "keywordflow" > if< / span > (!FetchKeysIfNecessary(moov_-> pssh))< / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   runs_.reset(< span class = "keyword" > new< / span > TrackRunIterator(moov_.get()));< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   RCHECK(runs_-> Init());< / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   ChangeState(kEmittingSamples);< / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / 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 = "keywordtype" > bool< / span > MP4MediaParser::ParseMoof(BoxReader* reader) {< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   < span class = "comment" > // Must already have initialization segment.< / span > < / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   RCHECK(moov_.get());< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   MovieFragment moof;< / div >
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   RCHECK(moof.Parse(reader));< / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   < span class = "keywordflow" > if< / span > (!runs_)< / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   runs_.reset(< span class = "keyword" > new< / span > TrackRunIterator(moov_.get()));< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   RCHECK(runs_-> Init(moof));< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   < span class = "keywordflow" > if< / span > (!FetchKeysIfNecessary(moof.pssh))< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   ChangeState(kEmittingSamples);< / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   }< / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   < / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   < span class = "keywordtype" > bool< / span > MP4MediaParser::FetchKeysIfNecessary(< / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   < span class = "keyword" > const< / span > std::vector< ProtectionSystemSpecificHeader> & headers) {< / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   < span class = "keywordflow" > if< / span > (headers.empty())< / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   < / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   < span class = "comment" > // An error will be returned later if the samples need to be decrypted.< / span > < / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   < span class = "keywordflow" > if< / span > (!decryption_key_source_)< / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   < / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   Status status;< / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   < span class = "keywordflow" > for< / span > (std::vector< ProtectionSystemSpecificHeader> ::const_iterator iter =< / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   headers.begin(); iter != headers.end(); ++iter) {< / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   status = decryption_key_source_-> < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html#aca6ecdac6ebc131d3626b765f64cb2de" > FetchKeys< / a > (iter-> raw_box);< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   < span class = "keywordflow" > if< / span > (!status.ok()) {< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < span class = "comment" > // If there is an error, try using the next PSSH box and report if none< / span > < / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   < span class = "comment" > // work.< / span > < / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   VLOG(1) < < < span class = "stringliteral" > " Unable to fetch decryption keys: " < / span > < < status< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   < < < span class = "stringliteral" > " , trying the next PSSH box" < / span > ;< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   < span class = "keywordflow" > continue< / 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 >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / 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 >   < span class = "keywordflow" > if< / span > (!status.ok()) {< / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error fetching decryption keys: " < / span > < < status;< / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   }< / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   < / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   LOG(ERROR) < < < span class = "stringliteral" > " No viable ' pssh' box found for content decryption." < / span > ;< / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   }< / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   < / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   < span class = "keywordtype" > bool< / span > MP4MediaParser::EnqueueSample(< span class = "keywordtype" > bool< / span > * err) {< / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   < span class = "keywordflow" > if< / span > (!runs_-> IsRunValid()) {< / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   < span class = "comment" > // Remain in kEnqueueingSamples state, discarding data, until the end of< / span > < / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   < span class = "comment" > // the current ' mdat' box has been appended to the queue.< / span > < / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   < span class = "keywordflow" > if< / span > (!queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a77b9a12145dad80df95845bd2b66b6a8" > Trim< / a > (mdat_tail_))< / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   < / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   ChangeState(kParsingBoxes);< / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   }< / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   < / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   < span class = "keywordflow" > if< / span > (!runs_-> IsSampleValid()) {< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   runs_-> AdvanceRun();< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / 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 >   DCHECK(!(*err));< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   < / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   < span class = "keyword" > const< / span > uint8_t* buf;< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   < span class = "keywordtype" > int< / span > buf_size;< / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   queue_.Peek(& buf, & buf_size);< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   < span class = "keywordflow" > if< / span > (!buf_size)< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   < / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   < span class = "comment" > // Skip this entire track if it is not audio nor video.< / span > < / div >
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   < span class = "keywordflow" > if< / span > (!runs_-> is_audio() & & !runs_-> is_video())< / div >
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   runs_-> AdvanceRun();< / div >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   < / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   < span class = "comment" > // Attempt to cache the auxiliary information first. Aux info is usually< / span > < / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   < span class = "comment" > // placed in a contiguous block before the sample data, rather than being< / span > < / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / 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 = "l00673" > < / a > < span class = "lineno" > 673< / span >   < span class = "comment" > // start of the segment buffer while reading samples. Aux info is typically< / span > < / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   < span class = "comment" > // quite small compared to sample data, so this pattern is useful on< / span > < / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   < span class = "comment" > // memory-constrained devices where the source buffer consumes a substantial< / span > < / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   < span class = "comment" > // portion of the total system memory.< / span > < / div >
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   < span class = "keywordflow" > if< / span > (runs_-> AuxInfoNeedsToBeCached()) {< / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a68832e85b25a9b543e54033bb70c4df6" > PeekAt< / a > (runs_-> aux_info_offset() + moof_head_, & buf, & buf_size);< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   < span class = "keywordflow" > if< / span > (buf_size < runs_-> aux_info_size())< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   *err = !runs_-> CacheAuxInfo(buf, buf_size);< / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   < span class = "keywordflow" > return< / span > !*err;< / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   }< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   < / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   int64_t sample_offset = runs_-> sample_offset() + moof_head_;< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a68832e85b25a9b543e54033bb70c4df6" > PeekAt< / a > (sample_offset, & buf, & buf_size);< / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   < span class = "keywordflow" > if< / span > (buf_size < runs_-> sample_size()) {< / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   < span class = "keywordflow" > if< / span > (sample_offset < queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a1dfd11c891dd3b3171002cbc484eacdd" > head< / a > ()) {< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Incorrect sample offset " < / span > < < sample_offset< / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   < < < span class = "stringliteral" > " < " < / span > < < queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a1dfd11c891dd3b3171002cbc484eacdd" > head< / a > ();< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   }< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   }< / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   < / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   std::shared_ptr< MediaSample> stream_sample(< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   < a class = "code" href = "../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#ad8975dbb21747ff32c8604f5489bf5c9" > MediaSample::CopyFrom< / a > (buf, runs_-> sample_size(), runs_-> is_keyframe()));< / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   < span class = "keywordflow" > if< / span > (runs_-> is_encrypted()) {< / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   std::unique_ptr< DecryptConfig> decrypt_config = runs_-> GetDecryptConfig();< / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   < span class = "keywordflow" > if< / span > (!decrypt_config) {< / div >
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Missing decrypt config." < / span > ;< / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / 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 >   < / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   < span class = "keywordflow" > if< / span > (!decryptor_source_) {< / div >
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   < span class = "comment" > // If the demuxer does not have the decryptor_source_, store< / span > < / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   < span class = "comment" > // decrypt_config so that the demuxed sample can be decrypted later.< / span > < / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   stream_sample-> set_decrypt_config(std::move(decrypt_config));< / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   stream_sample-> set_is_encrypted(< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (!decryptor_source_-> DecryptSampleBuffer(< / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   decrypt_config.get(), stream_sample-> writable_data(),< / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   stream_sample-> data_size())) {< / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Cannot decrypt samples." < / span > ;< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   }< / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   }< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   < / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   stream_sample-> set_dts(runs_-> dts());< / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   stream_sample-> set_pts(runs_-> cts());< / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   stream_sample-> set_duration(runs_-> duration());< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   DVLOG(3) < < < span class = "stringliteral" > " Pushing frame: " < / span > < / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   < < < span class = "stringliteral" > " , key=" < / span > < < runs_-> is_keyframe()< / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   < < < span class = "stringliteral" > " , dur=" < / span > < < runs_-> duration()< / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   < < < span class = "stringliteral" > " , dts=" < / span > < < runs_-> dts()< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   < < < span class = "stringliteral" > " , cts=" < / span > < < runs_-> cts()< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   < < < span class = "stringliteral" > " , size=" < / span > < < runs_-> sample_size();< / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   < / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   < span class = "keywordflow" > if< / span > (!new_sample_cb_.Run(runs_-> track_id(), stream_sample)) {< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to process the sample." < / span > ;< / div >
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   }< / div >
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   < / div >
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   runs_-> AdvanceSample();< / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   }< / div >
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   < / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   < span class = "keywordtype" > bool< / span > MP4MediaParser::ReadAndDiscardMDATsUntil(< span class = "keyword" > const< / span > int64_t offset) {< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   < span class = "keywordtype" > bool< / span > err = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   < span class = "keywordflow" > while< / span > (mdat_tail_ < offset) {< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   < span class = "keyword" > const< / span > uint8_t* buf;< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   < span class = "keywordtype" > int< / span > size;< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a68832e85b25a9b543e54033bb70c4df6" > PeekAt< / a > (mdat_tail_, & buf, & size);< / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   < / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   FourCC type;< / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   uint64_t box_sz;< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > BoxReader::StartBox< / a > (buf, size, & type, & box_sz, & err))< / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   < / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   mdat_tail_ += box_sz;< / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   }< / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   queue_.< a class = "code" href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a77b9a12145dad80df95845bd2b66b6a8" > Trim< / a > (std::min(mdat_tail_, offset));< / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   < span class = "keywordflow" > return< / span > !err;< / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   }< / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   < / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   < span class = "keywordtype" > void< / span > MP4MediaParser::ChangeState(State new_state) {< / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   DVLOG(2) < < < span class = "stringliteral" > " Changing state: " < / span > < < new_state;< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   state_ = new_state;< / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   }< / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   < / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   } < span class = "comment" > // namespace mp4< / span > < / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1OffsetByteQueue_html_a1dfd11c891dd3b3171002cbc484eacdd" > < div class = "ttname" > < a href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a1dfd11c891dd3b3171002cbc484eacdd" > shaka::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 >
< div class = "ttc" id = "classshaka_1_1media_1_1OffsetByteQueue_html_a68832e85b25a9b543e54033bb70c4df6" > < div class = "ttname" > < a href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a68832e85b25a9b543e54033bb70c4df6" > shaka::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 >
2016-08-19 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1File_html_ad1e9fc834093c8b35c0f8c1957974fda" > < div class = "ttname" > < a href = "../../d3/d61/classshaka_1_1media_1_1File.html#ad1e9fc834093c8b35c0f8c1957974fda" > shaka::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#l00152" > file.cc:152< / a > < / div > < / div >
2017-01-26 03:38:47 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_a6f26e0d76aeda601fa87190901de27ea" > < div class = "ttname" > < a href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a6f26e0d76aeda601fa87190901de27ea" > shaka::media::mp4::MP4MediaParser::Flush< / a > < / div > < div class = "ttdeci" > bool Flush() override WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/def/mp4__media__parser_8cc_source.html#l00117" > mp4_media_parser.cc:117< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1OffsetByteQueue_html_a77b9a12145dad80df95845bd2b66b6a8" > < div class = "ttname" > < a href = "../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html#a77b9a12145dad80df95845bd2b66b6a8" > shaka::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 >
2017-01-26 03:38:47 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_a4105cdbe5ece03071a17c06fb27699b0" > < div class = "ttname" > < a href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0" > shaka::media::mp4::MP4MediaParser::Parse< / a > < / div > < div class = "ttdeci" > bool Parse(const uint8_t *buf, int size) override WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/def/mp4__media__parser_8cc_source.html#l00124" > mp4_media_parser.cc:124< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1KeySource_html_aca6ecdac6ebc131d3626b765f64cb2de" > < div class = "ttname" > < a href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html#aca6ecdac6ebc131d3626b765f64cb2de" > shaka::media::KeySource::FetchKeys< / a > < / div > < div class = "ttdeci" > virtual Status FetchKeys(const std::vector< uint8_t > & pssh_box)=0< / div > < / div >
2016-08-18 21:18:15 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1AudioStreamInfo_html_aee79e7aa61b741bb96f451c6de1c9d42" > < div class = "ttname" > < a href = "../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42" > shaka::media::AudioStreamInfo::GetCodecString< / a > < / div > < div class = "ttdeci" > static std::string GetCodecString(Codec codec, uint8_t audio_object_type)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/d04/audio__stream__info_8cc_source.html#l00095" > audio_stream_info.cc:95< / a > < / div > < / div >
2017-01-26 03:38:47 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_af0ec1b44528a2997c0d548bee47862cf" > < div class = "ttname" > < a href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#af0ec1b44528a2997c0d548bee47862cf" > shaka::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#l00158" > mp4_media_parser.cc:158< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaSample_html_ad8975dbb21747ff32c8604f5489bf5c9" > < div class = "ttname" > < a href = "../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#ad8975dbb21747ff32c8604f5489bf5c9" > shaka::media::MediaSample::CopyFrom< / a > < / div > < div class = "ttdeci" > static std::shared_ptr< 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 >
2016-08-19 00:58:26 +00:00
< 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 >
2017-01-26 03:38:47 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_acc87b9752a7f6e8c739109acbc02b69d" > < div class = "ttname" > < a href = "../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#acc87b9752a7f6e8c739109acbc02b69d" > shaka::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 >
2016-09-01 17:53:10 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1DecryptorSource_html" > < div class = "ttname" > < a href = "../../d7/d59/classshaka_1_1media_1_1DecryptorSource.html" > shaka::media::DecryptorSource< / a > < / div > < div class = "ttdoc" > DecryptorSource wraps KeySource and is responsible for decryptor management. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d7d/decryptor__source_8h_source.html#l00022" > decryptor_source.h:22< / a > < / div > < / div >
2016-11-30 03:23:55 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_a6bafd9cd95a97c4c1475d1806d602ae2" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > shaka::media::mp4::BoxReader::StartBox< / a > < / div > < div class = "ttdeci" > static bool StartBox(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#l00054" > box_reader.cc:54< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_ae348922875d67128d2af6d88b692e205" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#ae348922875d67128d2af6d88b692e205" > shaka::media::mp4::BoxReader::ReadBox< / a > < / div > < div class = "ttdeci" > static BoxReader * ReadBox(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#l00036" > box_reader.cc:36< / a > < / div > < / div >
2015-10-16 00:33:37 +00:00
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2017-03-08 19:28:59 +00:00
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2015-10-16 00:33:37 +00:00
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