2015-10-16 00:33:37 +00:00
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< li class = "navelem" > < a class = "el" href = "../../dir_39dc0668bd5a501998f94e8b4e546c71.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_65f7acfa8cf3a5f1edc11faa2428b914.html" > formats< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_3e9291fd7a18fdecc763294cb2628910.html" > mp4< / a > < / li > < / ul >
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< div class = "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/formats/mp4/segmenter.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 < algorithm> < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
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< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/logging.h" < / span > < / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/media/base/aes_cryptor.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " packager/media/base/buffer_writer.h" < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/media/base/key_source.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " packager/media/base/media_sample.h" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " packager/media/base/media_stream.h" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " packager/media/base/muxer_options.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " packager/media/base/muxer_util.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " packager/media/base/video_stream_info.h" < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " packager/media/event/muxer_listener.h" < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " packager/media/event/progress_listener.h" < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/box_definitions.h" < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/key_rotation_fragmenter.h" < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " packager/version/version.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "keyword" > namespace < / span > mp4 {< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > kCencKeyIdSize = 16u;< / 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 = "comment" > // The version of cenc implemented here. CENC 4.< / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kCencSchemeVersion = 0x00010000;< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > // The default KID for key rotation is all 0s.< / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keyword" > const< / span > uint8_t kKeyRotationDefaultKeyId[] = {< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   0, 0, 0, 0, 0, 0, 0, 0,< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   0, 0, 0, 0, 0, 0, 0, 0< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   };< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > // Defines protection pattern for pattern-based encryption.< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keyword" > struct < / span > ProtectionPattern {< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   uint8_t crypt_byte_block;< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   uint8_t skip_byte_block;< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   };< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   static_assert(arraysize(kKeyRotationDefaultKeyId) == kCencKeyIdSize,< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "stringliteral" > " cenc_key_id_must_be_size_16" < / span > );< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   uint64_t Rescale(uint64_t time_in_old_scale,< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   uint32_t old_scale,< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   uint32_t new_scale) {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (time_in_old_scale) / old_scale * new_scale;< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   }< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   ProtectionPattern GetProtectionPattern(FourCC protection_scheme,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   TrackType track_type) {< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   ProtectionPattern pattern;< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordflow" > if< / span > (protection_scheme != FOURCC_cbcs & & protection_scheme != FOURCC_cens) {< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > // Not using pattern encryption.< / span > < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   pattern.crypt_byte_block = 0u;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   pattern.skip_byte_block = 0u;< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (track_type != kVideo) {< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "comment" > // Tracks other than video are protected using whole-block full-sample< / span > < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "comment" > // encryption, which is essentially a pattern of 1:0. Note that this may not< / span > < / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "comment" > // be the same as the non-pattern based encryption counterparts, e.g. in< / span > < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "comment" > // ' cens' for full sample encryption, the whole sample is encrypted up to< / span > < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > // the last 16-byte boundary, see 23001-7:2016(E) 9.7; while in ' cenc' for< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "comment" > // full sample encryption, the last partial 16-byte block is also encrypted,< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "comment" > // see 23001-7:2016(E) 9.4.2. Another difference is the use of constant iv.< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   pattern.crypt_byte_block = 1u;< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   pattern.skip_byte_block = 0u;< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > // Use 1:9 pattern for video.< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keyword" > const< / span > uint8_t kCryptByteBlock = 1u;< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keyword" > const< / span > uint8_t kSkipByteBlock = 9u;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   pattern.crypt_byte_block = kCryptByteBlock;< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   pattern.skip_byte_block = kSkipByteBlock;< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   }< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordflow" > return< / span > pattern;< / 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 = "keywordtype" > void< / span > GenerateSinf(< span class = "keyword" > const< / span > EncryptionKey& encryption_key,< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   FourCC old_type,< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   FourCC protection_scheme,< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   ProtectionPattern pattern,< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   ProtectionSchemeInfo* sinf) {< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   sinf-> format.format = old_type;< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   DCHECK_NE(protection_scheme, FOURCC_NULL);< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   sinf-> type.type = protection_scheme;< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   sinf-> type.version = kCencSchemeVersion;< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keyword" > auto< / span > & track_encryption = sinf-> info.track_encryption;< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   track_encryption.default_is_protected = 1;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   DCHECK(!encryption_key.iv.empty());< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > if< / span > (protection_scheme == FOURCC_cbcs) {< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "comment" > // ISO/IEC 23001-7:2016 10.4.1< / span > < / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "comment" > // For ' cbcs' scheme, Constant IVs SHALL be used.< / span > < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   track_encryption.default_per_sample_iv_size = 0;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   track_encryption.default_constant_iv = encryption_key.iv;< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   track_encryption.default_per_sample_iv_size =< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keyword" > static_cast< < / span > uint8_t< span class = "keyword" > > < / span > (encryption_key.iv.size());< / 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 >   track_encryption.default_crypt_byte_block = pattern.crypt_byte_block;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   track_encryption.default_skip_byte_block = pattern.skip_byte_block;< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   track_encryption.default_kid = encryption_key.key_id;< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   }< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "keywordtype" > void< / span > GenerateEncryptedSampleEntry(< span class = "keyword" > const< / span > EncryptionKey& encryption_key,< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "keywordtype" > double< / span > clear_lead_in_seconds,< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   FourCC protection_scheme,< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   ProtectionPattern pattern,< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   SampleDescription* description) {< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   DCHECK(description);< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordflow" > if< / span > (description-> type == kVideo) {< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   DCHECK_EQ(1u, description-> video_entries.size());< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "comment" > // Add a second entry for clear content if needed.< / span > < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordflow" > if< / span > (clear_lead_in_seconds > 0)< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   description-> video_entries.push_back(description-> video_entries[0]);< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "comment" > // Convert the first entry to an encrypted entry.< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   VideoSampleEntry& entry = description-> video_entries[0];< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   GenerateSinf(encryption_key, entry.format, protection_scheme, pattern,< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   & entry.sinf);< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   entry.format = FOURCC_encv;< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   DCHECK_EQ(kAudio, description-> type);< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   DCHECK_EQ(1u, description-> audio_entries.size());< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "comment" > // Add a second entry for clear content if needed.< / span > < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordflow" > if< / span > (clear_lead_in_seconds > 0)< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   description-> audio_entries.push_back(description-> audio_entries[0]);< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "comment" > // Convert the first entry to an encrypted entry.< / span > < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   AudioSampleEntry& entry = description-> audio_entries[0];< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   GenerateSinf(encryption_key, entry.format, protection_scheme, pattern,< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   & entry.sinf);< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   entry.format = FOURCC_enca;< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   }< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   }< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   Segmenter::Segmenter(< span class = "keyword" > const< / span > MuxerOptions& options,< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   std::unique_ptr< FileType> ftyp,< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   std::unique_ptr< Movie> moov)< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   : options_(options),< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   ftyp_(std::move(ftyp)),< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   moov_(std::move(moov)),< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   moof_(new MovieFragment()),< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   fragment_buffer_(new BufferWriter()),< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   sidx_(new SegmentIndex()),< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   muxer_listener_(NULL),< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   progress_listener_(NULL),< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   progress_target_(0),< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   accumulated_progress_(0),< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   sample_duration_(0u) {}< / 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 >   Segmenter::~Segmenter() {}< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a0440c751fd818964397d17330acc7afc" > 165< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa6b32c805c4e662d97244531723ce9eb" > Segmenter::Initialize< / a > (< span class = "keyword" > const< / span > std::vector< MediaStream*> & streams,< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < a class = "code" href = "../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html" > MuxerListener< / a > * muxer_listener,< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < a class = "code" href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html" > ProgressListener< / a > * progress_listener,< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html" > KeySource< / a > * encryption_key_source,< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   uint32_t max_sd_pixels,< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "keywordtype" > double< / span > clear_lead_in_seconds,< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keywordtype" > double< / span > crypto_period_duration_in_seconds,< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   FourCC protection_scheme) {< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   DCHECK_LT(0u, streams.size());< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   muxer_listener_ = muxer_listener;< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   progress_listener_ = progress_listener;< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   moof_-> header.sequence_number = 0;< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   moof_-> tracks.resize(streams.size());< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   segment_durations_.resize(streams.size());< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   fragmenters_.resize(streams.size());< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > key_rotation_enabled = crypto_period_duration_in_seconds != 0;< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > kInitialEncryptionInfo = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "keywordflow" > for< / span > (uint32_t i = 0; i < streams.size(); ++i) {< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   stream_map_[streams[i]] = i;< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   moof_-> tracks[i].header.track_id = i + 1;< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "keywordflow" > if< / span > (streams[i]-> info()-> stream_type() == kStreamVideo) {< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "comment" > // Use the first video stream as the reference stream (which is 1-based).< / span > < / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "keywordflow" > if< / span > (sidx_-> reference_id == 0)< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   sidx_-> reference_id = i + 1;< / 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" > if< / span > (!encryption_key_source) {< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   fragmenters_[i].reset(< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html" > Fragmenter< / a > (streams[i]-> info(), & moof_-> tracks[i]));< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   }< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   KeySource::TrackType track_type =< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   GetTrackTypeForEncryption(*streams[i]-> info(), max_sd_pixels);< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < a class = "code" href = "../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html" > SampleDescription< / a > & description =< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   moov_-> tracks[i].media.information.sample_table.description;< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   ProtectionPattern pattern =< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   GetProtectionPattern(protection_scheme, description.type);< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keywordflow" > if< / span > (key_rotation_enabled) {< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "comment" > // Fill encrypted sample entry with default key.< / span > < / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > encryption_key;< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   encryption_key.key_id.assign(< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   kKeyRotationDefaultKeyId,< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   kKeyRotationDefaultKeyId + arraysize(kKeyRotationDefaultKeyId));< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd" > AesCryptor::GenerateRandomIv< / a > (protection_scheme,< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   & encryption_key.iv)) {< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::INTERNAL_ERROR, < span class = "stringliteral" > " Failed to generate random iv." < / span > );< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   }< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   GenerateEncryptedSampleEntry(encryption_key, clear_lead_in_seconds,< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   protection_scheme, pattern, & description);< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < span class = "keywordflow" > if< / span > (muxer_listener_) {< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   muxer_listener_-> OnEncryptionInfoReady(< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   kInitialEncryptionInfo, protection_scheme, encryption_key.key_id,< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   encryption_key.iv, encryption_key.key_system_info);< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   }< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   fragmenters_[i].reset(< span class = "keyword" > new< / span > < a class = "code" href = "../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html" > KeyRotationFragmenter< / a > (< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   moof_.get(), streams[i]-> info(), & moof_-> tracks[i],< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   encryption_key_source, track_type,< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   crypto_period_duration_in_seconds * streams[i]-> info()-> time_scale(),< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   clear_lead_in_seconds * streams[i]-> info()-> time_scale(),< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   protection_scheme, pattern.crypt_byte_block, pattern.skip_byte_block,< / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   muxer_listener_));< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   }< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < / div >
2016-08-19 00:58:26 +00:00
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   std::unique_ptr< EncryptionKey> encryption_key(< span class = "keyword" > new< / span > < a class = "code" href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > EncryptionKey< / a > ());< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > status =< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   encryption_key_source-> < a class = "code" href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3" > GetKey< / a > (track_type, encryption_key.get());< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keywordflow" > if< / span > (encryption_key-> iv.empty()) {< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd" > AesCryptor::GenerateRandomIv< / a > (protection_scheme,< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   & encryption_key-> iv)) {< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::INTERNAL_ERROR, < span class = "stringliteral" > " Failed to generate random iv." < / span > );< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   }< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   }< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   GenerateEncryptedSampleEntry(*encryption_key, clear_lead_in_seconds,< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   protection_scheme, pattern, & description);< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < span class = "keywordflow" > if< / span > (moov_-> pssh.empty()) {< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   moov_-> pssh.resize(encryption_key-> key_system_info.size());< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < encryption_key-> key_system_info.size(); i++) {< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   moov_-> pssh[i].raw_box = encryption_key-> key_system_info[i].CreateBox();< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   }< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "keywordflow" > if< / span > (muxer_listener_) {< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   muxer_listener_-> OnEncryptionInfoReady(< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   kInitialEncryptionInfo, protection_scheme, encryption_key-> key_id,< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   encryption_key-> iv, encryption_key-> key_system_info);< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   }< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   }< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   fragmenters_[i].reset(< span class = "keyword" > new< / span > < a class = "code" href = "../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html" > EncryptingFragmenter< / a > (< / div >
2016-08-19 00:58:26 +00:00
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   streams[i]-> info(), & moof_-> tracks[i], std::move(encryption_key),< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   clear_lead_in_seconds * streams[i]-> info()-> time_scale(),< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   protection_scheme, pattern.crypt_byte_block, pattern.skip_byte_block,< / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   muxer_listener_));< / div >
2016-08-18 20:58:33 +00:00
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   }< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   < span class = "keywordflow" > if< / span > (options_.< a class = "code" href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4d3d8c1923a2e0f684c2591cd7f4a890" > mp4_use_decoding_timestamp_in_timeline< / a > ) {< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keywordflow" > for< / span > (uint32_t i = 0; i < streams.size(); ++i)< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   fragmenters_[i]-> set_use_decoding_timestamp_in_timeline(< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   }< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < span class = "comment" > // Choose the first stream if there is no VIDEO.< / span > < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "keywordflow" > if< / span > (sidx_-> reference_id == 0)< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   sidx_-> reference_id = 1;< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   sidx_-> timescale = streams[GetReferenceStreamId()]-> info()-> time_scale();< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   < / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   < span class = "comment" > // Use media duration as progress target.< / span > < / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   progress_target_ = streams[GetReferenceStreamId()]-> info()-> duration();< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   < / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < span class = "comment" > // Use the reference stream' s time scale as movie time scale.< / span > < / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   moov_-> header.timescale = sidx_-> timescale;< / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   moof_-> header.sequence_number = 1;< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   < / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   < span class = "comment" > // Fill in version information.< / span > < / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < span class = "keyword" > const< / span > std::string version = GetPackagerVersion();< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < span class = "keywordflow" > if< / span > (!version.empty()) {< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   moov_-> metadata.handler.handler_type = FOURCC_ID32;< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   moov_-> metadata.id3v2.language.code = < span class = "stringliteral" > " eng" < / span > ;< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   moov_-> metadata.id3v2.private_frame.owner = GetPackagerProjectUrl();< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   moov_-> metadata.id3v2.private_frame.value = version;< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   }< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "keywordflow" > return< / span > DoInitialize();< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   }< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a464a30159b8888a54254356d191947ac" > 296< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa84782877f1afaf9519a552ac3d5d417" > Segmenter::Finalize< / a > () {< / div >
2016-09-01 17:53:10 +00:00
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > std::unique_ptr< Fragmenter> & fragmenter : fragmenters_) {< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > status = FinalizeFragment(< span class = "keyword" > true< / span > , fragmenter.get());< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   }< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   < / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "comment" > // Set tracks and moov durations.< / span > < / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   < span class = "comment" > // Note that the updated moov box will be written to output file for VOD case< / span > < / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < span class = "comment" > // only.< / span > < / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   < span class = "keywordflow" > for< / span > (std::vector< Track> ::iterator track = moov_-> tracks.begin();< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   track != moov_-> tracks.end();< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   ++track) {< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   track-> header.duration = Rescale(track-> media.header.duration,< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   track-> media.header.timescale,< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   moov_-> header.timescale);< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keywordflow" > if< / span > (track-> header.duration > moov_-> header.duration)< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   moov_-> header.duration = track-> header.duration;< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   }< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   moov_-> extends.header.fragment_duration = moov_-> header.duration;< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "keywordflow" > return< / span > DoFinalize();< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   }< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a4a1a9e50050e75584ff1087aa318096a" > 320< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa15ccabe1a33c660201ef1d8386067e5" > Segmenter::AddSample< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "../../d8/d5c/classshaka_1_1media_1_1MediaStream.html" > MediaStream< / a > * stream,< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   scoped_refptr< MediaSample> sample) {< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < span class = "comment" > // Find the fragmenter for this stream.< / span > < / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   DCHECK(stream);< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   DCHECK(stream_map_.find(stream) != stream_map_.end());< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   uint32_t stream_id = stream_map_[stream];< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   < a class = "code" href = "../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html" > Fragmenter< / a > * fragmenter = fragmenters_[stream_id].get();< / 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 = "comment" > // Set default sample duration if it has not been set yet.< / span > < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < span class = "keywordflow" > if< / span > (moov_-> extends.tracks[stream_id].default_sample_duration == 0) {< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   moov_-> extends.tracks[stream_id].default_sample_duration =< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   sample-> duration();< / 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 >   < / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keywordflow" > if< / span > (fragmenter-> fragment_finalized()) {< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::FRAGMENT_FINALIZED,< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < span class = "stringliteral" > " Current fragment is finalized already." < / span > );< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   }< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   < span class = "keywordtype" > bool< / span > finalize_fragment = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   < span class = "keywordflow" > if< / span > (fragmenter-> fragment_duration() > =< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   options_.< a class = "code" href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a0dbe637b21f1f22f248437b59ad62a38" > fragment_duration< / a > * stream-> info()-> time_scale()) {< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "keywordflow" > if< / span > (sample-> is_key_frame() || !options_.< a class = "code" href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#acb335182d4bd226c1f044cc83705f4fc" > fragment_sap_aligned< / a > ) {< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   finalize_fragment = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   }< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   }< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "keywordtype" > bool< / span > finalize_segment = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < span class = "keywordflow" > if< / span > (segment_durations_[stream_id] > =< / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   options_.< a class = "code" href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687" > segment_duration< / a > * stream-> info()-> time_scale()) {< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordflow" > if< / span > (sample-> is_key_frame() || !options_.< a class = "code" href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a1f1336e9be8b12733fe28da083eaf93f" > segment_sap_aligned< / a > ) {< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   finalize_segment = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   finalize_fragment = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   }< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   }< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > status;< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < span class = "keywordflow" > if< / span > (finalize_fragment) {< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   status = FinalizeFragment(finalize_segment, fragmenter);< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   < span class = "keywordflow" > return< / span > status;< / 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 >   < / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   status = fragmenter-> < a class = "code" href = "../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a684c1f318ac05e85f4dbf373ea65b7ad" > AddSample< / a > (sample);< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   < / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < span class = "keywordflow" > if< / span > (sample_duration_ == 0)< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   sample_duration_ = sample-> duration();< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   moov_-> tracks[stream_id].media.header.duration += sample-> duration();< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   segment_durations_[stream_id] += sample-> duration();< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   DCHECK_GE(segment_durations_[stream_id], fragmenter-> fragment_duration());< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   }< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   uint32_t Segmenter::GetReferenceTimeScale()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   < span class = "keywordflow" > return< / span > moov_-> header.timescale;< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   }< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#a7283c64cb63a94264ff8fe405b8ce5c2" > 378< / a > < / span >   < span class = "keywordtype" > double< / span > < a class = "code" href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a277aeb59ed41fc484a86101d565017ae" > Segmenter::GetDuration< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "keywordflow" > if< / span > (moov_-> header.timescale == 0) {< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   < span class = "comment" > // Handling the case where this is not properly initialized.< / span > < / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   < span class = "keywordflow" > return< / span > 0.0;< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   }< / 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 = "keywordflow" > return< / span > < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (moov_-> header.duration) / moov_-> header.timescale;< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   }< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   < / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#afd8bb3584c984c711615800ad93642a3" > 387< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a32dc8b7461252b99fe52384b04e3bca2" > Segmenter::UpdateProgress< / a > (uint64_t progress) {< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   accumulated_progress_ += progress;< / 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 >   < span class = "keywordflow" > if< / span > (!progress_listener_) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   < span class = "keywordflow" > if< / span > (progress_target_ == 0) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "comment" > // It might happen that accumulated progress exceeds progress_target due to< / span > < / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   < span class = "comment" > // computation errors, e.g. rounding error. Cap it so it never reports > 100%< / span > < / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < span class = "comment" > // progress.< / span > < / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < span class = "keywordflow" > if< / span > (accumulated_progress_ > = progress_target_) {< / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   progress_listener_-> < a class = "code" href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7" > OnProgress< / a > (1.0);< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   progress_listener_-> < a class = "code" href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7" > OnProgress< / a > (static_cast< double> (accumulated_progress_) /< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   progress_target_);< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   }< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   }< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > < a class = "line" href = "../../d9/d26/classshaka_1_1media_1_1mp4_1_1Segmenter.html#adea4bf88a29660bd8612ae3bc5048068" > 403< / a > < / span >   < span class = "keywordtype" > void< / span > Segmenter::SetComplete() {< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "keywordflow" > if< / span > (!progress_listener_) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   progress_listener_-> < a class = "code" href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7" > OnProgress< / a > (1.0);< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   }< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   < / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > Segmenter::FinalizeSegment() {< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > status = DoFinalizeSegment();< / 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 >   < span class = "comment" > // Reset segment information to initial state.< / span > < / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   sidx_-> references.clear();< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   std::vector< uint64_t> ::iterator it = segment_durations_.begin();< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   < span class = "keywordflow" > for< / span > (; it != segment_durations_.end(); ++it)< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   *it = 0;< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   < / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "keywordflow" > return< / span > status;< / 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 >   < / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   uint32_t Segmenter::GetReferenceStreamId() {< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   DCHECK(sidx_);< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < span class = "keywordflow" > return< / span > sidx_-> reference_id - 1;< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   }< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   < / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   Status Segmenter::FinalizeFragment(< span class = "keywordtype" > bool< / span > finalize_segment,< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   Fragmenter* fragmenter) {< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   fragmenter-> FinalizeFragment();< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   < span class = "comment" > // Check if all tracks are ready for fragmentation.< / span > < / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > std::unique_ptr< Fragmenter> & fragmenter : fragmenters_) {< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < span class = "keywordflow" > if< / span > (!fragmenter-> fragment_finalized())< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / 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 >   < / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   MediaData mdat;< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   < span class = "comment" > // Data offset relative to ' moof' : moof size + mdat header size.< / span > < / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   < span class = "comment" > // The code will also update box sizes for moof_ and its child boxes.< / span > < / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   uint64_t data_offset = moof_-> ComputeSize() + mdat.HeaderSize();< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "comment" > // ' traf' should follow ' mfhd' moof header box.< / span > < / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   uint64_t next_traf_position = moof_-> HeaderSize() + moof_-> header.box_size();< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < moof_-> tracks.size(); ++i) {< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   TrackFragment& traf = moof_-> tracks[i];< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < span class = "keywordflow" > if< / span > (traf.auxiliary_offset.offsets.size() > 0) {< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   DCHECK_EQ(traf.auxiliary_offset.offsets.size(), 1u);< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   DCHECK(!traf.sample_encryption.sample_encryption_entries.empty());< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   next_traf_position += traf.box_size();< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "comment" > // SampleEncryption ' senc' box should be the last box in ' traf' .< / span > < / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   < span class = "comment" > // |auxiliary_offset| should point to the data of SampleEncryption.< / span > < / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   traf.auxiliary_offset.offsets[0] =< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   next_traf_position - traf.sample_encryption.box_size() +< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   traf.sample_encryption.HeaderSize() +< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   < span class = "keyword" > sizeof< / span > (uint32_t); < span class = "comment" > // for sample count field in ' senc' < / span > < / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   }< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   traf.runs[0].data_offset = data_offset + mdat.data_size;< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   mdat.data_size += fragmenters_[i]-> data()-> Size();< / 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 = "comment" > // Generate segment reference.< / span > < / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   sidx_-> references.resize(sidx_-> references.size() + 1);< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   fragmenters_[GetReferenceStreamId()]-> GenerateSegmentReference(< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   & sidx_-> references[sidx_-> references.size() - 1]);< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   sidx_-> references[sidx_-> references.size() - 1].referenced_size =< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   data_offset + mdat.data_size;< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   < / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "comment" > // Write the fragment to buffer.< / span > < / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   moof_-> Write(fragment_buffer_.get());< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   mdat.WriteHeader(fragment_buffer_.get());< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > std::unique_ptr< Fragmenter> & fragmenter : fragmenters_)< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   fragment_buffer_-> AppendBuffer(*fragmenter-> data());< / 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 = "comment" > // Increase sequence_number for next fragment.< / span > < / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   ++moof_-> header.sequence_number;< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   < / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   < span class = "keywordflow" > if< / span > (finalize_segment)< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "keywordflow" > return< / span > FinalizeSegment();< / 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 >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   }< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   < / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   } < span class = "comment" > // namespace mp4< / span > < / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1MuxerOptions_html_acb335182d4bd226c1f044cc83705f4fc" > < div class = "ttname" > < a href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#acb335182d4bd226c1f044cc83705f4fc" > shaka::media::MuxerOptions::fragment_sap_aligned< / a > < / div > < div class = "ttdeci" > bool fragment_sap_aligned< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d0e/muxer__options_8h_source.html#l00043" > muxer_options.h:43< / a > < / div > < / div >
2016-09-28 18:23:36 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1webm_1_1Segmenter_html_a277aeb59ed41fc484a86101d565017ae" > < div class = "ttname" > < a href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a277aeb59ed41fc484a86101d565017ae" > shaka::media::webm::Segmenter::GetDuration< / a > < / div > < div class = "ttdeci" > float GetDuration() const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d53/webm_2segmenter_8cc_source.html#l00199" > segmenter.cc:199< / a > < / div > < / div >
2016-08-20 00:03:18 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1webm_1_1Segmenter_html_aa15ccabe1a33c660201ef1d8386067e5" > < div class = "ttname" > < a href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa15ccabe1a33c660201ef1d8386067e5" > shaka::media::webm::Segmenter::AddSample< / a > < / div > < div class = "ttdeci" > Status AddSample(scoped_refptr< MediaSample > sample)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d53/webm_2segmenter_8cc_source.html#l00120" > segmenter.cc:120< / a > < / div > < / div >
2016-08-19 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1Fragmenter_html_a684c1f318ac05e85f4dbf373ea65b7ad" > < div class = "ttname" > < a href = "../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a684c1f318ac05e85f4dbf373ea65b7ad" > shaka::media::mp4::Fragmenter::AddSample< / a > < / div > < div class = "ttdeci" > virtual Status AddSample(scoped_refptr< MediaSample > sample)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d8/d9a/fragmenter_8cc_source.html#l00046" > fragmenter.cc:46< / a > < / div > < / div >
2016-07-19 18:58:22 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1MuxerOptions_html_a4d3d8c1923a2e0f684c2591cd7f4a890" > < div class = "ttname" > < a href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4d3d8c1923a2e0f684c2591cd7f4a890" > shaka::media::MuxerOptions::mp4_use_decoding_timestamp_in_timeline< / a > < / div > < div class = "ttdeci" > bool mp4_use_decoding_timestamp_in_timeline< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d0e/muxer__options_8h_source.html#l00057" > muxer_options.h:57< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1MuxerOptions_html_a1f1336e9be8b12733fe28da083eaf93f" > < div class = "ttname" > < a href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a1f1336e9be8b12733fe28da083eaf93f" > shaka::media::MuxerOptions::segment_sap_aligned< / a > < / div > < div class = "ttdeci" > bool segment_sap_aligned< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d0e/muxer__options_8h_source.html#l00038" > muxer_options.h:38< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1KeySource_html_a994eb66cf09d8b08fd1c964f6afd3ab3" > < div class = "ttname" > < a href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3" > shaka::media::KeySource::GetKey< / a > < / div > < div class = "ttdeci" > virtual Status GetKey(TrackType track_type, EncryptionKey *key)=0< / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ProgressListener_html" > < div class = "ttname" > < a href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html" > shaka::media::ProgressListener< / a > < / div > < div class = "ttdoc" > This class listens to progress updates events. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d7/d9d/progress__listener_8h_source.html#l00020" > progress_listener.h:20< / a > < / div > < / div >
2016-05-26 00:03:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1mp4_1_1SampleDescription_html" > < div class = "ttname" > < a href = "../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html" > shaka::media::mp4::SampleDescription< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d7b/box__definitions_8h_source.html#l00392" > box_definitions.h:392< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1Fragmenter_html" > < div class = "ttname" > < a href = "../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html" > shaka::media::mp4::Fragmenter< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/dd1/fragmenter_8h_source.html#l00031" > fragmenter.h:31< / a > < / div > < / div >
2016-08-19 00:58:26 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1EncryptionKey_html" > < div class = "ttname" > < a href = "../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html" > shaka::media::EncryptionKey< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d3f/key__source_8h_source.html#l00019" > key_source.h:19< / a > < / div > < / div >
2016-09-01 17:53:10 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1AesCryptor_html_a40d9a82d274d6fbaee5346328f11dedd" > < div class = "ttname" > < a href = "../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd" > shaka::media::AesCryptor::GenerateRandomIv< / a > < / div > < div class = "ttdeci" > static bool GenerateRandomIv(FourCC protection_scheme, std::vector< uint8_t > *iv)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d6/d55/aes__cryptor_8cc_source.html#l00107" > aes_cryptor.cc:107< / a > < / div > < / div >
2016-08-20 00:03:18 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1webm_1_1Segmenter_html_aa6b32c805c4e662d97244531723ce9eb" > < div class = "ttname" > < a href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa6b32c805c4e662d97244531723ce9eb" > shaka::media::webm::Segmenter::Initialize< / a > < / div > < div class = "ttdeci" > Status Initialize(std::unique_ptr< MkvWriter > writer, StreamInfo *info, ProgressListener *progress_listener, MuxerListener *muxer_listener, KeySource *encryption_key_source, uint32_t max_sd_pixels, double clear_lead_in_seconds)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d53/webm_2segmenter_8cc_source.html#l00051" > segmenter.cc:51< / a > < / div > < / div >
2016-07-11 20:48:08 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter_html" > < div class = "ttname" > < a href = "../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html" > shaka::media::mp4::EncryptingFragmenter< / a > < / div > < div class = "ttdoc" > EncryptingFragmenter generates MP4 fragments with sample encrypted. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d1/dcb/encrypting__fragmenter_8h_source.html#l00028" > encrypting_fragmenter.h:28< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1MuxerOptions_html_a0dbe637b21f1f22f248437b59ad62a38" > < div class = "ttname" > < a href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a0dbe637b21f1f22f248437b59ad62a38" > shaka::media::MuxerOptions::fragment_duration< / a > < / div > < div class = "ttdeci" > double fragment_duration< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d0e/muxer__options_8h_source.html#l00034" > muxer_options.h:34< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ProgressListener_html_a9c32e569c50194a106f7e9242749e7e7" > < div class = "ttname" > < a href = "../../d4/de6/classshaka_1_1media_1_1ProgressListener.html#a9c32e569c50194a106f7e9242749e7e7" > shaka::media::ProgressListener::OnProgress< / a > < / div > < div class = "ttdeci" > virtual void OnProgress(double progress)=0< / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1Status_html" > < div class = "ttname" > < a href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > shaka::media::Status< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d1/d13/status_8h_source.html#l00075" > status.h:75< / a > < / div > < / div >
2016-08-20 00:03:18 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1webm_1_1Segmenter_html_aa84782877f1afaf9519a552ac3d5d417" > < div class = "ttname" > < a href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#aa84782877f1afaf9519a552ac3d5d417" > shaka::media::webm::Segmenter::Finalize< / a > < / div > < div class = "ttdeci" > Status Finalize()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d53/webm_2segmenter_8cc_source.html#l00109" > segmenter.cc:109< / a > < / div > < / div >
2016-08-19 00:58:26 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1KeySource_html" > < div class = "ttname" > < a href = "../../d1/d1f/classshaka_1_1media_1_1KeySource.html" > shaka::media::KeySource< / a > < / div > < div class = "ttdoc" > KeySource is responsible for encryption key acquisition. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d3f/key__source_8h_source.html#l00030" > key_source.h:30< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1MuxerOptions_html_a4e98ad5fc7bbc2df0cb95df3f1db9687" > < div class = "ttname" > < a href = "../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687" > shaka::media::MuxerOptions::segment_duration< / a > < / div > < div class = "ttdeci" > double segment_duration< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d0/d0e/muxer__options_8h_source.html#l00030" > muxer_options.h:30< / a > < / div > < / div >
2016-09-28 18:23:36 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1webm_1_1Segmenter_html_a32dc8b7461252b99fe52384b04e3bca2" > < div class = "ttname" > < a href = "../../dd/dc5/classshaka_1_1media_1_1webm_1_1Segmenter.html#a32dc8b7461252b99fe52384b04e3bca2" > shaka::media::webm::Segmenter::UpdateProgress< / a > < / div > < div class = "ttdeci" > void UpdateProgress(uint64_t progress)< / div > < div class = "ttdoc" > Update segmentation progress using ProgressListener. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d53/webm_2segmenter_8cc_source.html#l00264" > segmenter.cc:264< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter_html" > < div class = "ttname" > < a href = "../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html" > shaka::media::mp4::KeyRotationFragmenter< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/d22/key__rotation__fragmenter_8h_source.html#l00023" > key_rotation_fragmenter.h:23< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaStream_html" > < div class = "ttname" > < a href = "../../d8/d5c/classshaka_1_1media_1_1MediaStream.html" > shaka::media::MediaStream< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d9/d93/media__stream_8h_source.html#l00026" > media_stream.h:26< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MuxerListener_html" > < div class = "ttname" > < a href = "../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html" > shaka::media::MuxerListener< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../de/dfa/muxer__listener_8h_source.html#l00030" > muxer_listener.h:30< / a > < / div > < / div >
2015-10-16 00:33:37 +00:00
< / div > <!-- fragment --> < / div > <!-- contents -->
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2016-09-30 21:38:31 +00:00
Generated on Fri Sep 30 2016 21:38:25 for DASH Media Packaging SDK by   < a href = "http://www.doxygen.org/index.html" >
2015-10-16 00:33:37 +00:00
< img class = "footer" src = "../../doxygen.png" alt = "doxygen" / >
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