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< title > Shaka Packager SDK: packager/media/base/widevine_key_source.cc Source File< / title >
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< li class = "navelem" > < a class = "el" href = "../../dir_3f8eec2fc361645de4b1ec14c19fffc7.html" > packager< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_f99dae54fe7170f791f339b952d5067a.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_e3bda0bde998a4d5063328245b9909be.html" > base< / a > < / li > < / ul >
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< / div >
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< div class = "header" >
< div class = "headertitle" >
< div class = "title" > widevine_key_source.cc< / div > < / div >
< / div > <!-- header -->
< div class = "contents" >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2014 Google Inc. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // license that can be found in the LICENSE file or at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > // https://developers.google.com/open-source/licenses/bsd< / span > < / div >
< 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 " packager/media/base/widevine_key_source.h" < / 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 < gflags/gflags.h> < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/base64.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/bind.h" < / span > < / div >
< 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/http_key_fetcher.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " packager/media/base/network_util.h" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " packager/media/base/producer_consumer_queue.h" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " packager/media/base/protection_system_ids.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " packager/media/base/protection_system_specific_info.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " packager/media/base/proto_json_util.h" < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " packager/media/base/pssh_generator_util.h" < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " packager/media/base/rcheck.h" < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " packager/media/base/request_signer.h" < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " packager/media/base/widevine_common_encryption.pb.h" < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   DEFINE_string(video_feature,< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "stringliteral" > " " < / span > ,< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "stringliteral" > " Specify the optional video feature, e.g. HDR." < / span > );< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "../../d8/daf/namespaceshaka.html" > shaka< / a > {< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > kEnableKeyRotation = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "comment" > // Number of times to retry requesting keys in case of a transient error from< / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > // the server.< / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kNumTransientErrorRetries = 5;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kFirstRetryDelayMilliseconds = 1000;< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "comment" > // Default crypto period count, which is the number of keys to fetch on every< / span > < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "comment" > // key rotation enabled request.< / span > < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kDefaultCryptoPeriodCount = 10;< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kGetKeyTimeoutInSeconds = 5 * 60; < span class = "comment" > // 5 minutes.< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kKeyFetchTimeoutInSeconds = 60; < span class = "comment" > // 1 minute.< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   CommonEncryptionRequest::ProtectionScheme ToCommonEncryptionProtectionScheme(< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   FourCC protection_scheme) {< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > switch< / span > (protection_scheme) {< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > case< / span > FOURCC_cenc:< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordflow" > return< / span > CommonEncryptionRequest::CENC;< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keywordflow" > case< / span > FOURCC_cbcs:< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keywordflow" > case< / span > kAppleSampleAesProtectionScheme:< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > // Treat sample aes as a variant of cbcs.< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keywordflow" > return< / span > CommonEncryptionRequest::CBCS;< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "keywordflow" > case< / span > FOURCC_cbc1:< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keywordflow" > return< / span > CommonEncryptionRequest::CBC1;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordflow" > case< / span > FOURCC_cens:< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keywordflow" > return< / span > CommonEncryptionRequest::CENS;< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   LOG(WARNING) < < < span class = "stringliteral" > " Ignore unrecognized protection scheme " < / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < < FourCCToString(protection_scheme);< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordflow" > return< / span > CommonEncryptionRequest::UNSPECIFIED;< / div >
< 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 >   }< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   ProtectionSystemSpecificInfo ProtectionSystemInfoFromPsshProto(< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keyword" > const< / span > CommonEncryptionResponse::Track::Pssh& pssh_proto) {< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   PsshBoxBuilder pssh_builder;< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   pssh_builder.set_system_id(kWidevineSystemId, arraysize(kWidevineSystemId));< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > if< / span > (pssh_proto.has_boxes()) {< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > return< / span > {pssh_builder.system_id(),< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   std::vector< uint8_t> (pssh_proto.boxes().begin(),< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   pssh_proto.boxes().end())};< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   pssh_builder.set_pssh_box_version(0);< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keyword" > const< / span > std::vector< uint8_t> pssh_data(pssh_proto.data().begin(),< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   pssh_proto.data().end());< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   pssh_builder.set_pssh_data(pssh_data);< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordflow" > return< / span > {pssh_builder.system_id(), pssh_builder.CreateBox()};< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   }< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   }< / 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" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aa292ed08d3bc9b0e84f700e6cde16950" > 86< / a > < / span >   < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aa292ed08d3bc9b0e84f700e6cde16950" > WidevineKeySource::WidevineKeySource< / a > (< span class = "keyword" > const< / span > std::string& server_url,< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < a class = "code" href = "../../d8/daf/namespaceshaka.html#aadc0cc211185374c4bf219da325673ac" > ProtectionSystem< / a > protection_systems,< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   FourCC protection_scheme)< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "comment" > // Widevine PSSH is fetched from Widevine license server.< / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   : generate_widevine_protection_system_(< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "comment" > // Generate Widevine protection system if there are no other< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "comment" > // protection system specified.< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   protection_systems == < a class = "code" href = "../../d8/daf/namespaceshaka.html#aadc0cc211185374c4bf219da325673ac" > ProtectionSystem< / a > ::kNone ||< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   has_flag(protection_systems, < a class = "code" href = "../../d8/daf/namespaceshaka.html#aadc0cc211185374c4bf219da325673ac" > ProtectionSystem< / a > ::kWidevine)),< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   key_production_thread_(< span class = "stringliteral" > " KeyProductionThread" < / span > ,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   base::Bind(& < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html" > WidevineKeySource< / a > ::FetchKeysTask,< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   base::Unretained(this))),< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   key_fetcher_(new < a class = "code" href = "../../d7/de0/classshaka_1_1media_1_1HttpKeyFetcher.html" > HttpKeyFetcher< / a > (kKeyFetchTimeoutInSeconds)),< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   server_url_(server_url),< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   crypto_period_count_(kDefaultCryptoPeriodCount),< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   protection_scheme_(protection_scheme),< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   start_key_production_(base::WaitableEvent::ResetPolicy::AUTOMATIC,< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   base::WaitableEvent::InitialState::NOT_SIGNALED) {< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   key_production_thread_.Start();< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   }< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   WidevineKeySource::~WidevineKeySource() {< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > if< / span > (key_pool_)< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   key_pool_-> Stop();< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordflow" > if< / span > (key_production_thread_.HasBeenStarted()) {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "comment" > // Signal the production thread to start key production if it is not< / span > < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "comment" > // signaled yet so the thread can be joined.< / span > < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   start_key_production_.Signal();< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   key_production_thread_.Join();< / 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" > 117< / span >   < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a6fb9680be887d3b9367e015029f909f2" > 118< / a > < / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aeea3e62921c176aa6be1f0a95f03b6cf" > WidevineKeySource::FetchKeys< / a > (< span class = "keyword" > const< / span > std::vector< uint8_t> & content_id,< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keyword" > const< / span > std::string& policy) {< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   base::AutoLock scoped_lock(lock_);< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   common_encryption_request_.reset(< span class = "keyword" > new< / span > CommonEncryptionRequest);< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   common_encryption_request_-> set_content_id(content_id.data(),< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   content_id.size());< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   common_encryption_request_-> set_policy(policy);< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   common_encryption_request_-> set_protection_scheme(< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   ToCommonEncryptionProtectionScheme(protection_scheme_));< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keywordflow" > if< / span > (enable_entitlement_license_)< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   common_encryption_request_-> set_enable_entitlement_license(< span class = "keyword" > true< / 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 >   < span class = "keywordflow" > return< / span > FetchKeysInternal(!kEnableKeyRotation, 0, < span class = "keyword" > false< / span > );< / 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 >   < / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aeea3e62921c176aa6be1f0a95f03b6cf" > 133< / a > < / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aeea3e62921c176aa6be1f0a95f03b6cf" > WidevineKeySource::FetchKeys< / a > (EmeInitDataType init_data_type,< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keyword" > const< / span > std::vector< uint8_t> & init_data) {< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   std::vector< uint8_t> pssh_data;< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   uint32_t asset_id = 0;< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "keywordflow" > switch< / span > (init_data_type) {< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "keywordflow" > case< / span > EmeInitDataType::CENC: {< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "keyword" > const< / span > std::vector< uint8_t> widevine_system_id(< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   kWidevineSystemId, kWidevineSystemId + arraysize(kWidevineSystemId));< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   std::vector< ProtectionSystemSpecificInfo> protection_systems_info;< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d0/d86/structshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#aa984e27d2655a451ea87ff0a4ddd8b79" > ProtectionSystemSpecificInfo::ParseBoxes< / a > (< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   init_data.data(), init_data.size(), & protection_systems_info)) {< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::PARSER_FAILURE, < span class = "stringliteral" > " Error parsing the PSSH boxes." < / span > );< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   }< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & info : protection_systems_info) {< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   std::unique_ptr< PsshBoxBuilder> pssh_builder =< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < a class = "code" href = "../../d2/d24/classshaka_1_1media_1_1PsshBoxBuilder.html#a7ebab252f964cd679ca7cf232c61c947" > PsshBoxBuilder::ParseFromBox< / a > (info.psshs.data(), info.psshs.size());< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "keywordflow" > if< / span > (!pssh_builder)< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::PARSER_FAILURE, < span class = "stringliteral" > " Error parsing the PSSH box." < / span > );< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > // Use Widevine PSSH if available otherwise construct a Widevine PSSH< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "comment" > // from the first available key ids.< / span > < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "keywordflow" > if< / span > (info.system_id == widevine_system_id) {< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   pssh_data = pssh_builder-> pssh_data();< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (pssh_data.empty() & & !pssh_builder-> key_ids().empty()) {< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   pssh_data =< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   GenerateWidevinePsshDataFromKeyIds(pssh_builder-> key_ids());< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "comment" > // Continue to see if there is any Widevine PSSH. The KeyId generated< / span > < / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < span class = "comment" > // PSSH is only used if a Widevine PSSH could not be found.< / span > < / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   }< / 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 >   < span class = "keywordflow" > if< / span > (pssh_data.empty())< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INVALID_ARGUMENT, < span class = "stringliteral" > " No supported PSSHs found." < / span > );< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   }< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordflow" > case< / span > EmeInitDataType::WEBM: {< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   pssh_data = GenerateWidevinePsshDataFromKeyIds({init_data});< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "keywordflow" > break< / span > ;< / 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 >   < span class = "keywordflow" > case< / span > EmeInitDataType::WIDEVINE_CLASSIC:< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "keywordflow" > if< / span > (init_data.size() < < span class = "keyword" > sizeof< / span > (asset_id))< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INVALID_ARGUMENT, < span class = "stringliteral" > " Invalid asset id." < / span > );< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   asset_id = ntohlFromBuffer(init_data.data());< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Init data type " < / span > < < < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > int< / span > < span class = "keyword" > > < / span > (init_data_type)< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < < < span class = "stringliteral" > " not supported." < / span > ;< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INVALID_ARGUMENT, < span class = "stringliteral" > " Unsupported init data type." < / span > );< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   }< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > widevine_classic =< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   init_data_type == EmeInitDataType::WIDEVINE_CLASSIC;< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   base::AutoLock scoped_lock(lock_);< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   common_encryption_request_.reset(< span class = "keyword" > new< / span > CommonEncryptionRequest);< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < span class = "keywordflow" > if< / span > (widevine_classic) {< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   common_encryption_request_-> set_asset_id(asset_id);< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   common_encryption_request_-> set_pssh_data(pssh_data.data(),< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   pssh_data.size());< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   }< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < span class = "keywordflow" > return< / span > FetchKeysInternal(!kEnableKeyRotation, 0, widevine_classic);< / 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" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae7fa01a2f2f91e26e45b54146c929580" > 195< / a > < / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae7fa01a2f2f91e26e45b54146c929580" > WidevineKeySource::GetKey< / a > (< span class = "keyword" > const< / span > std::string& stream_label,< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > * key) {< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   DCHECK(key);< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < span class = "keywordflow" > if< / span > (encryption_key_map_.find(stream_label) == encryption_key_map_.end()) {< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INTERNAL_ERROR,< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < span class = "stringliteral" > " Cannot find key for ' " < / span > + stream_label + < span class = "stringliteral" > " ' ." < / 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 >   *key = *encryption_key_map_[stream_label];< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / 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 >   < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59699cd998290adae74e6596ba44fdc3" > 206< / a > < / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae7fa01a2f2f91e26e45b54146c929580" > WidevineKeySource::GetKey< / a > (< span class = "keyword" > const< / span > std::vector< uint8_t> & key_id,< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > * key) {< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   DCHECK(key);< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & pair : encryption_key_map_) {< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < span class = "keywordflow" > if< / span > (pair.second-> key_id == key_id) {< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   *key = *pair.second;< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / 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 >   }< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INTERNAL_ERROR,< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "stringliteral" > " Cannot find key with specified key ID" < / 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 >   < / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aab3666bda5a756ccdd1855cea088b4c6" > 219< / a > < / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aab3666bda5a756ccdd1855cea088b4c6" > WidevineKeySource::GetCryptoPeriodKey< / a > (uint32_t crypto_period_index,< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   uint32_t crypto_period_duration_in_seconds,< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "keyword" > const< / span > std::string& stream_label,< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > * key) {< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   DCHECK(key_production_thread_.HasBeenStarted());< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "comment" > // TODO(kqyang): This is not elegant. Consider refactoring later.< / span > < / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   {< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   base::AutoLock scoped_lock(lock_);< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordflow" > if< / span > (!key_production_started_) {< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   crypto_period_duration_in_seconds_ = crypto_period_duration_in_seconds;< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < span class = "comment" > // Another client may have a slightly smaller starting crypto period< / span > < / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < span class = "comment" > // index. Set the initial value to account for that.< / span > < / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   first_crypto_period_index_ =< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   crypto_period_index ? crypto_period_index - 1 : 0;< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   DCHECK(!key_pool_);< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > queue_size = crypto_period_count_ * 10;< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   key_pool_.reset(< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "../../d5/d33/classshaka_1_1media_1_1ProducerConsumerQueue.html" > EncryptionKeyQueue< / a > (queue_size, first_crypto_period_index_));< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   start_key_production_.Signal();< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   key_production_started_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (crypto_period_duration_in_seconds_ !=< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   crypto_period_duration_in_seconds) {< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > (error::INVALID_ARGUMENT,< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < span class = "stringliteral" > " Crypto period duration should not change." < / span > );< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   }< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   }< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < span class = "keywordflow" > return< / span > GetKeyInternal(crypto_period_index, stream_label, key);< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   }< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526" > 248< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526" > WidevineKeySource::set_signer< / a > (std::unique_ptr< RequestSigner> signer) {< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   signer_ = std::move(signer);< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   }< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04" > 252< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04" > WidevineKeySource::set_key_fetcher< / a > (< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   std::unique_ptr< KeyFetcher> key_fetcher) {< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   key_fetcher_ = std::move(key_fetcher);< / 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 >   < / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > WidevineKeySource::GetKeyInternal(uint32_t crypto_period_index,< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "keyword" > const< / span > std::string& stream_label,< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > * key) {< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   DCHECK(key_pool_);< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   DCHECK(key);< / 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 >   std::shared_ptr< EncryptionKeyMap> encryption_key_map;< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < a class = "code" href = "../../d2/d20/classshaka_1_1Status.html" > Status< / a > status = key_pool_-> Peek(crypto_period_index, & encryption_key_map,< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   kGetKeyTimeoutInSeconds * 1000);< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < span class = "keywordflow" > if< / span > (!status.ok()) {< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < span class = "keywordflow" > if< / span > (status.error_code() == error::STOPPED) {< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   CHECK(!common_encryption_request_status_.ok());< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keywordflow" > return< / span > common_encryption_request_status_;< / 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 >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   }< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "keywordflow" > if< / span > (encryption_key_map-> find(stream_label) == encryption_key_map-> end()) {< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < span class = "keywordflow" > return< / span > Status(error::INTERNAL_ERROR,< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < span class = "stringliteral" > " Cannot find key for ' " < / span > + stream_label + < span class = "stringliteral" > " ' ." < / span > );< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   }< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   *key = *encryption_key_map-> at(stream_label);< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   }< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   < span class = "keywordtype" > void< / span > WidevineKeySource::FetchKeysTask() {< / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   < span class = "comment" > // Wait until key production is signaled.< / span > < / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   start_key_production_.Wait();< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   < span class = "keywordflow" > if< / span > (!key_pool_ || key_pool_-> Stopped())< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   Status status = FetchKeysInternal(kEnableKeyRotation,< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   first_crypto_period_index_,< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "keywordflow" > while< / span > (status.ok()) {< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   first_crypto_period_index_ += crypto_period_count_;< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   status = FetchKeysInternal(kEnableKeyRotation,< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   first_crypto_period_index_,< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   }< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   common_encryption_request_status_ = status;< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   key_pool_-> Stop();< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   }< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   < / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   Status WidevineKeySource::FetchKeysInternal(< span class = "keywordtype" > bool< / span > enable_key_rotation,< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   uint32_t first_crypto_period_index,< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "keywordtype" > bool< / span > widevine_classic) {< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   CommonEncryptionRequest request;< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   FillRequest(enable_key_rotation, first_crypto_period_index, & request);< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   < / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   std::string message;< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   Status status = GenerateKeyMessage(request, & message);< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   VLOG(1) < < < span class = "stringliteral" > " Message: " < / span > < < message;< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   std::string raw_response;< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   int64_t sleep_duration = kFirstRetryDelayMilliseconds;< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "comment" > // Perform client side retries if seeing server transient error to workaround< / span > < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "comment" > // server limitation.< / span > < / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < kNumTransientErrorRetries; ++i) {< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   status = key_fetcher_-> FetchKeys(server_url_, message, & raw_response);< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "keywordflow" > if< / span > (status.ok()) {< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   VLOG(1) < < < span class = "stringliteral" > " Retry [" < / span > < < i < < < span class = "stringliteral" > " ] Response:" < / span > < < raw_response;< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordtype" > bool< / span > transient_error = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   < span class = "keywordflow" > if< / span > (ExtractEncryptionKey(enable_key_rotation, widevine_classic,< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   raw_response, & transient_error))< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   < / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < span class = "keywordflow" > if< / span > (!transient_error) {< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < span class = "keywordflow" > return< / span > Status(< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   error::SERVER_ERROR,< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < span class = "stringliteral" > " Failed to extract encryption key from ' " < / span > + raw_response + < span class = "stringliteral" > " ' ." < / span > );< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   }< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (status.error_code() != error::TIME_OUT) {< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   }< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   < span class = "comment" > // Exponential backoff.< / span > < / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < span class = "keywordflow" > if< / span > (i != kNumTransientErrorRetries - 1) {< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   base::PlatformThread::Sleep(< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   base::TimeDelta::FromMilliseconds(sleep_duration));< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   sleep_duration *= 2;< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   }< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   }< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < span class = "keywordflow" > return< / span > Status(error::SERVER_ERROR,< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   < span class = "stringliteral" > " Failed to recover from server internal error." < / span > );< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   }< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "keywordtype" > void< / span > WidevineKeySource::FillRequest(< span class = "keywordtype" > bool< / span > enable_key_rotation,< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   uint32_t first_crypto_period_index,< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   CommonEncryptionRequest* request) {< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   DCHECK(common_encryption_request_);< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   DCHECK(request);< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   *request = *common_encryption_request_;< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   request-> add_tracks()-> set_type(< span class = "stringliteral" > " SD" < / span > );< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   request-> add_tracks()-> set_type(< span class = "stringliteral" > " HD" < / span > );< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   request-> add_tracks()-> set_type(< span class = "stringliteral" > " UHD1" < / span > );< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   request-> add_tracks()-> set_type(< span class = "stringliteral" > " UHD2" < / span > );< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   request-> add_tracks()-> set_type(< span class = "stringliteral" > " AUDIO" < / span > );< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   request-> add_drm_types(ModularDrmType::WIDEVINE);< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   < / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "keywordflow" > if< / span > (enable_key_rotation) {< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   request-> set_first_crypto_period_index(first_crypto_period_index);< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   request-> set_crypto_period_count(crypto_period_count_);< / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   request-> set_crypto_period_seconds(crypto_period_duration_in_seconds_);< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   }< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   < / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < span class = "keywordflow" > if< / span > (!group_id_.empty())< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   request-> set_group_id(group_id_.data(), group_id_.size());< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < span class = "keywordflow" > if< / span > (!FLAGS_video_feature.empty())< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   request-> set_video_feature(FLAGS_video_feature);< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   }< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   < / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   Status WidevineKeySource::GenerateKeyMessage(< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < span class = "keyword" > const< / span > CommonEncryptionRequest& request,< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   std::string* message) {< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   DCHECK(message);< / 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 >   SignedModularDrmRequest signed_request;< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   signed_request.set_request(MessageToJsonString(request));< / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "comment" > // Sign the request.< / span > < / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < span class = "keywordflow" > if< / span > (signer_) {< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   std::string signature;< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < span class = "keywordflow" > if< / span > (!signer_-> GenerateSignature(signed_request.request(), & signature))< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   < span class = "keywordflow" > return< / span > Status(error::INTERNAL_ERROR, < span class = "stringliteral" > " Signature generation failed." < / span > );< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   < / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   signed_request.set_signature(signature);< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   signed_request.set_signer(signer_-> signer_name());< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   }< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   < / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   *message = MessageToJsonString(signed_request);< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / 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 >   < / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "keywordtype" > bool< / span > WidevineKeySource::ExtractEncryptionKey(< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < span class = "keywordtype" > bool< / span > enable_key_rotation,< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   < span class = "keywordtype" > bool< / span > widevine_classic,< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   < span class = "keyword" > const< / span > std::string& response,< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < span class = "keywordtype" > bool< / span > * transient_error) {< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   DCHECK(transient_error);< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   *transient_error = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   < / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   SignedModularDrmResponse signed_response_proto;< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   < span class = "keywordflow" > if< / span > (!JsonStringToMessage(response, & signed_response_proto)) {< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to convert JSON to proto: " < / span > < < response;< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   }< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   CommonEncryptionResponse response_proto;< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < span class = "keywordflow" > if< / span > (!JsonStringToMessage(signed_response_proto.response(), & response_proto)) {< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Failed to convert JSON to proto: " < / span > < / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   < < signed_response_proto.response();< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   }< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   < span class = "keywordflow" > if< / span > (response_proto.status() != CommonEncryptionResponse::OK) {< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Received non-OK license response: " < / span > < < response;< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   < span class = "comment" > // Server may return INTERNAL_ERROR intermittently, which is a transient< / span > < / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < span class = "comment" > // error and the next client request may succeed without problem.< / span > < / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   *transient_error =< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   (response_proto.status() == CommonEncryptionResponse::INTERNAL_ERROR);< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   }< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   < / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   RCHECK(enable_key_rotation< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   ? response_proto.tracks_size() > = crypto_period_count_< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   : response_proto.tracks_size() > = 1);< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   uint32_t current_crypto_period_index = first_crypto_period_index_;< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   < / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   std::vector< std::vector< uint8_t> > key_ids;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & track : response_proto.tracks()) {< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   < span class = "keywordflow" > if< / span > (!widevine_classic)< / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   key_ids.emplace_back(track.key_id().begin(), track.key_id().end());< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   }< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   EncryptionKeyMap encryption_key_map;< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & track : response_proto.tracks()) {< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   VLOG(2) < < < span class = "stringliteral" > " track " < / span > < < track.ShortDebugString();< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   < span class = "keywordflow" > if< / span > (enable_key_rotation) {< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < span class = "keywordflow" > if< / span > (track.crypto_period_index() != current_crypto_period_index) {< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < span class = "keywordflow" > if< / span > (track.crypto_period_index() != current_crypto_period_index + 1) {< / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Expecting crypto period index " < / span > < / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < < current_crypto_period_index < < < span class = "stringliteral" > " or " < / span > < / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   < < current_crypto_period_index + 1 < < < span class = "stringliteral" > " ; Seen " < / span > < / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   < < track.crypto_period_index();< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   }< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   < span class = "keywordflow" > if< / span > (!PushToKeyPool(& encryption_key_map))< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   ++current_crypto_period_index;< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   }< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   }< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   < / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   < span class = "keyword" > const< / span > std::string& stream_label = track.type();< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   RCHECK(encryption_key_map.find(stream_label) == encryption_key_map.end());< / 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 >   std::unique_ptr< EncryptionKey> encryption_key(< span class = "keyword" > new< / span > EncryptionKey());< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   encryption_key-> key.assign(track.key().begin(), track.key().end());< / 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 = "comment" > // Get key ID and PSSH data for CENC content only.< / span > < / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "keywordflow" > if< / span > (!widevine_classic) {< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   encryption_key-> key_id.assign(track.key_id().begin(),< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   track.key_id().end());< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   encryption_key-> iv.assign(track.iv().begin(), track.iv().end());< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   encryption_key-> key_ids = key_ids;< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   < / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   < span class = "keywordflow" > if< / span > (generate_widevine_protection_system_) {< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   < span class = "keywordflow" > if< / span > (track.pssh_size() != 1) {< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Expecting one and only one pssh, seeing " < / span > < / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   < < track.pssh_size();< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   }< / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   encryption_key-> key_system_info.push_back(< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   ProtectionSystemInfoFromPsshProto(track.pssh(0)));< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   }< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   }< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   encryption_key_map[stream_label] = std::move(encryption_key);< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   }< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   < / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   DCHECK(!encryption_key_map.empty());< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   < span class = "keywordflow" > if< / span > (!enable_key_rotation) {< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < span class = "comment" > // Merge with previously requested keys.< / span > < / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > auto< / span > & pair : encryption_key_map)< / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   encryption_key_map_[pair.first] = std::move(pair.second);< / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   }< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   < span class = "keywordflow" > return< / span > PushToKeyPool(& encryption_key_map);< / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   }< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   < / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordtype" > bool< / span > WidevineKeySource::PushToKeyPool(< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   EncryptionKeyMap* encryption_key_map) {< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   DCHECK(key_pool_);< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   DCHECK(encryption_key_map);< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   < span class = "keyword" > auto< / span > encryption_key_map_shared = std::make_shared< EncryptionKeyMap> ();< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   encryption_key_map_shared-> swap(*encryption_key_map);< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   Status status = key_pool_-> Push(encryption_key_map_shared, kInfiniteTimeout);< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   < span class = "keywordflow" > if< / span > (!status.ok()) {< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   DCHECK_EQ(error::STOPPED, status.error_code());< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   }< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   }< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   < / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
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< / div > <!-- fragment --> < / div > <!-- contents -->
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_aab3666bda5a756ccdd1855cea088b4c6" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aab3666bda5a756ccdd1855cea088b4c6" > shaka::media::WidevineKeySource::GetCryptoPeriodKey< / a > < / div > < div class = "ttdeci" > Status GetCryptoPeriodKey(uint32_t crypto_period_index, uint32_t crypto_period_duration_in_seconds, const std::string & stream_label, EncryptionKey *key) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00219" > widevine_key_source.cc:219< / a > < / div > < / div >
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_a48d182da15ecc85e2ae7fd164ba0a526" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526" > shaka::media::WidevineKeySource::set_signer< / a > < / div > < div class = "ttdeci" > void set_signer(std::unique_ptr< RequestSigner > signer)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00248" > widevine_key_source.cc:248< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceshaka_html" > < div class = "ttname" > < a href = "../../d8/daf/namespaceshaka.html" > shaka< / a > < / div > < div class = "ttdoc" > All the methods that are virtual are virtual for mocking.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011" > gflags_hex_bytes.cc:11< / a > < / div > < / div >
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_aeea3e62921c176aa6be1f0a95f03b6cf" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aeea3e62921c176aa6be1f0a95f03b6cf" > shaka::media::WidevineKeySource::FetchKeys< / a > < / div > < div class = "ttdeci" > Status FetchKeys(EmeInitDataType init_data_type, const std::vector< uint8_t > & init_data) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00133" > widevine_key_source.cc:133< / a > < / div > < / div >
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< div class = "ttc" id = "aclassshaka_1_1media_1_1ProducerConsumerQueue_html" > < div class = "ttname" > < a href = "../../d5/d33/classshaka_1_1media_1_1ProducerConsumerQueue.html" > shaka::media::ProducerConsumerQueue< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d15/producer__consumer__queue_8h_source.html#l00028" > producer_consumer_queue.h:28< / a > < / div > < / div >
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html" > shaka::media::WidevineKeySource< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/d5c/widevine__key__source_8h_source.html#l00029" > widevine_key_source.h:29< / a > < / div > < / div >
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< div class = "ttc" id = "aclassshaka_1_1media_1_1HttpKeyFetcher_html" > < div class = "ttname" > < a href = "../../d7/de0/classshaka_1_1media_1_1HttpKeyFetcher.html" > shaka::media::HttpKeyFetcher< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../db/d71/http__key__fetcher_8h_source.html#l00025" > http_key_fetcher.h:25< / a > < / div > < / div >
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< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_a97c0565df9381e178ebb50c193cebd04" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04" > shaka::media::WidevineKeySource::set_key_fetcher< / a > < / div > < div class = "ttdeci" > void set_key_fetcher(std::unique_ptr< KeyFetcher > key_fetcher)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00252" > widevine_key_source.cc:252< / a > < / div > < / div >
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< div class = "ttc" id = "aclassshaka_1_1Status_html" > < div class = "ttname" > < a href = "../../d2/d20/classshaka_1_1Status.html" > shaka::Status< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d1/d13/status_8h_source.html#l00110" > status.h:110< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceshaka_html_aadc0cc211185374c4bf219da325673ac" > < div class = "ttname" > < a href = "../../d8/daf/namespaceshaka.html#aadc0cc211185374c4bf219da325673ac" > shaka::ProtectionSystem< / a > < / div > < div class = "ttdeci" > ProtectionSystem< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dd/d58/crypto__params_8h_source.html#l00031" > crypto_params.h:31< / a > < / div > < / div >
2021-04-10 04:00:37 +00:00
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_aa292ed08d3bc9b0e84f700e6cde16950" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#aa292ed08d3bc9b0e84f700e6cde16950" > shaka::media::WidevineKeySource::WidevineKeySource< / a > < / div > < div class = "ttdeci" > WidevineKeySource(const std::string & server_url, ProtectionSystem protection_systems, FourCC protection_scheme)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00086" > widevine_key_source.cc:86< / a > < / div > < / div >
< div class = "ttc" id = "aclassshaka_1_1media_1_1WidevineKeySource_html_ae7fa01a2f2f91e26e45b54146c929580" > < div class = "ttname" > < a href = "../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae7fa01a2f2f91e26e45b54146c929580" > shaka::media::WidevineKeySource::GetKey< / a > < / div > < div class = "ttdeci" > Status GetKey(const std::string & stream_label, EncryptionKey *key) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d89/widevine__key__source_8cc_source.html#l00195" > widevine_key_source.cc:195< / a > < / div > < / div >
< div class = "ttc" id = "astructshaka_1_1media_1_1EncryptionKey_html" > < div class = "ttname" > < a href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > shaka::media::EncryptionKey< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d3f/key__source_8h_source.html#l00038" > key_source.h:38< / a > < / div > < / div >
< div class = "ttc" id = "astructshaka_1_1media_1_1ProtectionSystemSpecificInfo_html_aa984e27d2655a451ea87ff0a4ddd8b79" > < div class = "ttname" > < a href = "../../d0/d86/structshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#aa984e27d2655a451ea87ff0a4ddd8b79" > shaka::media::ProtectionSystemSpecificInfo::ParseBoxes< / a > < / div > < div class = "ttdeci" > static bool ParseBoxes(const uint8_t *data, size_t data_size, std::vector< ProtectionSystemSpecificInfo > *pssh_boxes)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/d42/protection__system__specific__info_8cc_source.html#l00034" > protection_system_specific_info.cc:34< / a > < / div > < / div >
2021-06-22 00:16:40 +00:00
< div class = "ttc" id = "aclassshaka_1_1media_1_1PsshBoxBuilder_html_a7ebab252f964cd679ca7cf232c61c947" > < div class = "ttname" > < a href = "../../d2/d24/classshaka_1_1media_1_1PsshBoxBuilder.html#a7ebab252f964cd679ca7cf232c61c947" > shaka::media::PsshBoxBuilder::ParseFromBox< / a > < / div > < div class = "ttdeci" > static std::unique_ptr< PsshBoxBuilder > ParseFromBox(const uint8_t *data, size_t data_size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/d42/protection__system__specific__info_8cc_source.html#l00066" > protection_system_specific_info.cc:66< / a > < / div > < / div >
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