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< title > DASH Media Packaging SDK: media/formats/webm/webm_media_parser.cc Source File< / title >
2015-10-19 17:27:30 +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_5039d854a18988ed1f1dbebc120ffbf7.html" > webm< / a > < / li > < / ul >
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< div class = "title" > webm_media_parser.cc< / div > < / div >
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< / div > <!-- header -->
< div class = "contents" >
< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2014 The Chromium Authors. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < 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 >
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< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_media_parser.h" < / span > < / div >
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< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include " packager/base/callback.h" < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include " packager/base/callback_helpers.h" < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/logging.h" < / span > < / div >
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< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/media/base/buffer_writer.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " packager/media/base/timestamp.h" < / span > < / div >
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< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_cluster_parser.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_constants.h" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_content_encodings.h" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_info_parser.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " packager/media/formats/webm/webm_tracks_parser.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
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< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   WebMMediaParser::WebMMediaParser()< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   : state_(kWaitingForInit), unknown_segment_size_(false) {}< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   WebMMediaParser::~WebMMediaParser() {}< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < / div >
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< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > < a class = "line" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a5cd5c298938e2c58c45f962b21e43b2e" > 28< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a5cd5c298938e2c58c45f962b21e43b2e" > WebMMediaParser::Init< / a > (< span class = "keyword" > const< / span > InitCB& init_cb,< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a0ac13291317f7d3d9175c4e91e57b891" > NewSampleCB< / a > & new_sample_cb,< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html" > KeySource< / a > * decryption_key_source) {< / div >
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< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   DCHECK_EQ(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   DCHECK(init_cb_.is_null());< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   DCHECK(!init_cb.is_null());< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   DCHECK(!new_sample_cb.is_null());< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   ChangeState(kParsingHeaders);< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   init_cb_ = init_cb;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   new_sample_cb_ = new_sample_cb;< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   decryption_key_source_ = decryption_key_source;< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   ignore_text_tracks_ = < span class = "keyword" > true< / span > ;< / 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 >
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< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a6c2d4b5b36304831e637f7ae1b9e54a2" > 43< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a6c2d4b5b36304831e637f7ae1b9e54a2" > WebMMediaParser::Flush< / a > () {< / div >
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< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   DCHECK_NE(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
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< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   byte_queue_.< a class = "code" href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#ab1659ef71098c37e9fb4e55ab1664e84" > Reset< / a > ();< / div >
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< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordtype" > bool< / span > result = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > if< / span > (cluster_parser_)< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   result = cluster_parser_-> Flush();< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordflow" > if< / span > (state_ == kParsingClusters) {< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   ChangeState(kParsingHeaders);< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   }< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   }< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < / div >
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< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > < a class = "line" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a40940ec01d965e3a78213861a93f7cfc" > 56< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a40940ec01d965e3a78213861a93f7cfc" > WebMMediaParser::Parse< / a > (< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > int< / span > size) {< / div >
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< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   DCHECK_NE(state_, kWaitingForInit);< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > if< / span > (state_ == kError)< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < / div >
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< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   byte_queue_.< a class = "code" href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#acea792e406efe5119cec2e3e522e02c2" > Push< / a > (buf, size);< / div >
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< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordtype" > int< / span > result = 0;< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordtype" > int< / span > bytes_parsed = 0;< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keyword" > const< / span > uint8_t* cur = NULL;< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordtype" > int< / span > cur_size = 0;< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
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< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   byte_queue_.< a class = "code" href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#a838fe5642e533477a5e229981e5f06e7" > Peek< / a > (& cur, & cur_size);< / div >
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< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keywordflow" > while< / span > (cur_size > 0) {< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   State oldState = state_;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > switch< / span > (state_) {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "keywordflow" > case< / span > kParsingHeaders:< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   result = ParseInfoAndTracks(cur, cur_size);< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keywordflow" > case< / span > kParsingClusters:< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   result = ParseCluster(cur, cur_size);< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordflow" > case< / span > kWaitingForInit:< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordflow" > case< / span > kError:< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   }< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordflow" > if< / span > (result < 0) {< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   ChangeState(kError);< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   }< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordflow" > if< / span > (state_ == oldState & & result == 0)< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   DCHECK_GE(result, 0);< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   cur += result;< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   cur_size -= result;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   bytes_parsed += result;< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   }< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < / div >
2016-05-24 23:43:16 +00:00
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   byte_queue_.< a class = "code" href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#a31b30d39d14fca3ce722b4233de95c79" > Pop< / a > (bytes_parsed);< / div >
2016-03-08 21:50:50 +00:00
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   }< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "keywordtype" > void< / span > WebMMediaParser::ChangeState(State new_state) {< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   DVLOG(1) < < < span class = "stringliteral" > " ChangeState() : " < / span > < < state_ < < < span class = "stringliteral" > " -> " < / span > < < new_state;< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   state_ = new_state;< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   }< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "keywordtype" > int< / span > WebMMediaParser::ParseInfoAndTracks(< span class = "keyword" > const< / span > uint8_t* data, < span class = "keywordtype" > int< / span > size) {< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   DVLOG(2) < < < span class = "stringliteral" > " ParseInfoAndTracks()" < / span > ;< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   DCHECK(data);< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   DCHECK_GT(size, 0);< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "keyword" > const< / span > uint8_t* cur = data;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "keywordtype" > int< / span > cur_size = size;< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keywordtype" > int< / span > bytes_parsed = 0;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordtype" > int< / span > id;< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   int64_t element_size;< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > int< / span > result = WebMParseElementHeader(cur, cur_size, & < span class = "keywordtype" > id< / span > , & element_size);< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordflow" > if< / span > (result < = 0)< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "keywordflow" > switch< / span > (< span class = "keywordtype" > id< / span > ) {< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordflow" > case< / span > kWebMIdEBMLHeader:< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keywordflow" > case< / span > kWebMIdSeekHead:< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "keywordflow" > case< / span > kWebMIdVoid:< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordflow" > case< / span > kWebMIdCRC32:< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordflow" > case< / span > kWebMIdCues:< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordflow" > case< / span > kWebMIdChapters:< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "keywordflow" > case< / span > kWebMIdTags:< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < span class = "keywordflow" > case< / span > kWebMIdAttachments:< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "comment" > // TODO: Implement support for chapters.< / span > < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordflow" > if< / span > (cur_size < (result + element_size)) {< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "comment" > // We don' t have the whole element yet. Signal we need more data.< / span > < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   }< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "comment" > // Skip the element.< / span > < / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordflow" > return< / span > result + element_size;< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "keywordflow" > case< / span > kWebMIdCluster:< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordflow" > if< / span > (!cluster_parser_) {< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Found Cluster element before Info." < / span > ;< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "keywordflow" > return< / span > -1;< / 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 >   ChangeState(kParsingClusters);< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordflow" > case< / span > kWebMIdSegment:< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > // Segment of unknown size indicates live stream.< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "keywordflow" > if< / span > (element_size == kWebMUnknownSize)< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   unknown_segment_size_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < span class = "comment" > // Just consume the segment header.< / span > < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < span class = "keywordflow" > case< / span > kWebMIdInfo:< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < span class = "comment" > // We' ve found the element we are looking for.< / span > < / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < span class = "keywordflow" > default< / span > : {< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unexpected element ID 0x" < / span > < < std::hex < < id;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keywordflow" > return< / span > -1;< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   }< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   }< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   WebMInfoParser info_parser;< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   result = info_parser.Parse(cur, cur_size);< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < span class = "keywordflow" > if< / span > (result < = 0)< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   cur += result;< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   cur_size -= result;< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   bytes_parsed += result;< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   WebMTracksParser tracks_parser(ignore_text_tracks_);< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   result = tracks_parser.Parse(cur, cur_size);< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "keywordflow" > if< / span > (result < = 0)< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   bytes_parsed += result;< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "keywordtype" > double< / span > timecode_scale_in_us = info_parser.timecode_scale() / 1000.0;< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   int64_t duration_in_us = info_parser.duration() * timecode_scale_in_us;< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   scoped_refptr< AudioStreamInfo> audio_stream_info =< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   tracks_parser.audio_stream_info();< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "keywordflow" > if< / span > (audio_stream_info) {< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   audio_stream_info-> set_duration(duration_in_us);< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   VLOG(1) < < < span class = "stringliteral" > " No audio track info found." < / span > ;< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   }< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   scoped_refptr< VideoStreamInfo> video_stream_info =< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   tracks_parser.video_stream_info();< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "keywordflow" > if< / span > (video_stream_info) {< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   video_stream_info-> set_duration(duration_in_us);< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   VLOG(1) < < < span class = "stringliteral" > " No video track info found." < / span > ;< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   }< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keywordflow" > if< / span > (!FetchKeysIfNecessary(tracks_parser.audio_encryption_key_id(),< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   tracks_parser.video_encryption_key_id())) {< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keywordflow" > return< / span > -1;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   }< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   cluster_parser_.reset(< span class = "keyword" > new< / span > WebMClusterParser(< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   info_parser.timecode_scale(), audio_stream_info, video_stream_info,< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   tracks_parser.GetAudioDefaultDuration(timecode_scale_in_us),< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   tracks_parser.GetVideoDefaultDuration(timecode_scale_in_us),< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   tracks_parser.text_tracks(), tracks_parser.ignored_tracks(),< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   tracks_parser.audio_encryption_key_id(),< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   tracks_parser.video_encryption_key_id(), new_sample_cb_, init_cb_,< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   decryption_key_source_));< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < span class = "keywordflow" > return< / span > bytes_parsed;< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   }< / 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 >   < span class = "keywordtype" > int< / span > WebMMediaParser::ParseCluster(< span class = "keyword" > const< / span > uint8_t* data, < span class = "keywordtype" > int< / span > size) {< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "keywordflow" > if< / span > (!cluster_parser_)< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "keywordflow" > return< / span > -1;< / 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 >   < span class = "keywordtype" > int< / span > bytes_parsed = cluster_parser_-> Parse(data, size);< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < span class = "keywordflow" > if< / span > (bytes_parsed < 0)< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keywordflow" > return< / span > bytes_parsed;< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keywordtype" > bool< / span > cluster_ended = cluster_parser_-> cluster_ended();< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < span class = "keywordflow" > if< / span > (cluster_ended) {< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   ChangeState(kParsingHeaders);< / 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 = "keywordflow" > return< / span > bytes_parsed;< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   }< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "keywordtype" > bool< / span > WebMMediaParser::FetchKeysIfNecessary(< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "keyword" > const< / span > std::string& audio_encryption_key_id,< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keyword" > const< / span > std::string& video_encryption_key_id) {< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < span class = "keywordflow" > if< / span > (audio_encryption_key_id.empty() & & video_encryption_key_id.empty())< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "comment" > // An error will be returned later if the samples need to be decrypted.< / span > < / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < span class = "keywordflow" > if< / span > (!decryption_key_source_)< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   std::vector< std::vector< uint8_t> > key_ids;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   < span class = "keywordflow" > if< / span > (!audio_encryption_key_id.empty()) {< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   key_ids.push_back(std::vector< uint8_t> (audio_encryption_key_id.begin(),< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   audio_encryption_key_id.end()));< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   }< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > if< / span > (!video_encryption_key_id.empty()) {< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   key_ids.push_back(std::vector< uint8_t> (video_encryption_key_id.begin(),< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   video_encryption_key_id.end()));< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   }< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < / div >
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< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   Status status = decryption_key_source_-> < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html#aca6ecdac6ebc131d3626b765f64cb2de" > FetchKeys< / a > (key_ids);< / div >
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< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < span class = "keywordflow" > if< / span > (!status.ok()) {< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Error fetching decryption keys: " < / span > < < status;< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   }< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / 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 >   < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   } < span class = "comment" > // namespace media< / span > < / div >
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< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1WebMMediaParser_html_a6c2d4b5b36304831e637f7ae1b9e54a2" > < div class = "ttname" > < a href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a6c2d4b5b36304831e637f7ae1b9e54a2" > shaka::media::WebMMediaParser::Flush< / a > < / div > < div class = "ttdeci" > bool Flush() override WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/dff/webm__media__parser_8cc_source.html#l00043" > webm_media_parser.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1WebMMediaParser_html_a40940ec01d965e3a78213861a93f7cfc" > < div class = "ttname" > < a href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a40940ec01d965e3a78213861a93f7cfc" > shaka::media::WebMMediaParser::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 = "../../d4/dff/webm__media__parser_8cc_source.html#l00056" > webm_media_parser.cc:56< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1WebMMediaParser_html_a5cd5c298938e2c58c45f962b21e43b2e" > < div class = "ttname" > < a href = "../../d2/ddb/classshaka_1_1media_1_1WebMMediaParser.html#a5cd5c298938e2c58c45f962b21e43b2e" > shaka::media::WebMMediaParser::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 = "../../d4/dff/webm__media__parser_8cc_source.html#l00028" > webm_media_parser.cc:28< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ByteQueue_html_acea792e406efe5119cec2e3e522e02c2" > < div class = "ttname" > < a href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#acea792e406efe5119cec2e3e522e02c2" > shaka::media::ByteQueue::Push< / a > < / div > < div class = "ttdeci" > void Push(const uint8_t *data, int size)< / div > < div class = "ttdoc" > Append new bytes to the end of the queue. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/df9/byte__queue_8cc_source.html#l00029" > byte_queue.cc:29< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ByteQueue_html_a31b30d39d14fca3ce722b4233de95c79" > < div class = "ttname" > < a href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#a31b30d39d14fca3ce722b4233de95c79" > shaka::media::ByteQueue::Pop< / a > < / div > < div class = "ttdeci" > void Pop(int count)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/df9/byte__queue_8cc_source.html#l00070" > byte_queue.cc:70< / a > < / div > < / div >
< 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 >
< div class = "ttc" id = "classshaka_1_1media_1_1ByteQueue_html_ab1659ef71098c37e9fb4e55ab1664e84" > < div class = "ttname" > < a href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#ab1659ef71098c37e9fb4e55ab1664e84" > shaka::media::ByteQueue::Reset< / a > < / div > < div class = "ttdeci" > void Reset()< / div > < div class = "ttdoc" > Reset the queue to the empty state. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/df9/byte__queue_8cc_source.html#l00024" > byte_queue.cc:24< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ByteQueue_html_a838fe5642e533477a5e229981e5f06e7" > < div class = "ttname" > < a href = "../../d7/dda/classshaka_1_1media_1_1ByteQueue.html#a838fe5642e533477a5e229981e5f06e7" > shaka::media::ByteQueue::Peek< / a > < / div > < div class = "ttdeci" > void Peek(const uint8_t **data, int *size) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/df9/byte__queue_8cc_source.html#l00063" > byte_queue.cc:63< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaParser_html_a0ac13291317f7d3d9175c4e91e57b891" > < div class = "ttname" > < a href = "../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a0ac13291317f7d3d9175c4e91e57b891" > shaka::media::MediaParser::NewSampleCB< / a > < / div > < div class = "ttdeci" > base::Callback< bool(uint32_t track_id, const scoped_refptr< MediaSample > & media_sample)> NewSampleCB< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/d12/media__parser_8h_source.html#l00044" > media_parser.h:44< / a > < / div > < / div >
< 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#l00031" > key_source.h:31< / a > < / div > < / div >
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