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_f7dcbe7025bbacfc4b9a7dff6ad41d72.html" > mp2t< / a > < / li > < / ul >
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< div class = "title" > ts_packet.cc< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2014 The Chromium Authors. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style license that can be< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // found in the LICENSE file.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp2t/ts_packet.h" < / 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/base/memory/scoped_ptr.h" < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "preprocessor" > #include " packager/media/base/bit_reader.h" < / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp2t/mp2t_common.h" < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "keyword" > namespace < / span > edash_packager {< / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "keyword" > namespace < / span > mp2t {< / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "keyword" > static< / span > < span class = "keyword" > const< / span > uint8_t kTsHeaderSyncword = 0x47;< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "comment" > // static< / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "keywordtype" > int< / span > TsPacket::Sync(< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > int< / span > size) {< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "keywordtype" > int< / span > k = 0;< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keywordflow" > for< / span > (; k < size; k++) {< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "comment" > // Verify that we have 4 syncwords in a row when possible,< / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "comment" > // this should improve synchronization robustness.< / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "keywordtype" > bool< / span > is_header = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < 4; i++) {< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "keywordtype" > int< / span > idx = k + i * kPacketSize;< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "keywordflow" > if< / span > (idx > = size)< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "keywordflow" > if< / span > (buf[idx] != kTsHeaderSyncword) {< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   DVLOG(LOG_LEVEL_TS)< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < < < span class = "stringliteral" > " ByteSync" < / span > < < idx < < < span class = "stringliteral" > " : " < / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < < std::hex < < static_cast< int> (buf[idx]) < < std::dec;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   is_header = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   }< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   }< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "keywordflow" > if< / span > (is_header)< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   }< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   DVLOG_IF(1, k != 0) < < < span class = "stringliteral" > " SYNC: nbytes_skipped=" < / span > < < k;< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "keywordflow" > return< / span > k;< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   }< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > // static< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   TsPacket* TsPacket::Parse(< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > int< / span > size) {< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > if< / span > (size < kPacketSize) {< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   DVLOG(1) < < < span class = "stringliteral" > " Buffer does not hold one full TS packet:" < / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < < < span class = "stringliteral" > " buffer_size=" < / span > < < size;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > return< / span > NULL;< / 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 >   < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   DCHECK_EQ(buf[0], kTsHeaderSyncword);< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keywordflow" > if< / span > (buf[0] != kTsHeaderSyncword) {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   DVLOG(1) < < < span class = "stringliteral" > " Not on a TS syncword:" < / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < < < span class = "stringliteral" > " buf[0]=" < / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < < std::hex < < static_cast< int> (buf[0]) < < std::dec;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   }< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   scoped_ptr< TsPacket> ts_packet(< span class = "keyword" > new< / span > TsPacket());< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordtype" > bool< / span > status = ts_packet-> ParseHeader(buf);< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordflow" > if< / span > (!status) {< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   DVLOG(1) < < < span class = "stringliteral" > " Parsing header failed" < / span > ;< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   }< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordflow" > return< / span > ts_packet.release();< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   }< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   TsPacket::TsPacket() {< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   }< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   TsPacket::~TsPacket() {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   }< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordtype" > bool< / span > TsPacket::ParseHeader(< span class = "keyword" > const< / span > uint8_t* buf) {< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   BitReader bit_reader(buf, kPacketSize);< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   payload_ = buf;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   payload_size_ = kPacketSize;< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "comment" > // Read the TS header: 4 bytes.< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordtype" > int< / span > syncword;< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordtype" > int< / span > transport_error_indicator;< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "keywordtype" > int< / span > payload_unit_start_indicator;< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "keywordtype" > int< / span > transport_priority;< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "keywordtype" > int< / span > transport_scrambling_control;< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordtype" > int< / span > adaptation_field_control;< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   RCHECK(bit_reader.ReadBits(8, & syncword));< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   RCHECK(bit_reader.ReadBits(1, & transport_error_indicator));< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   RCHECK(bit_reader.ReadBits(1, & payload_unit_start_indicator));< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   RCHECK(bit_reader.ReadBits(1, & transport_priority));< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   RCHECK(bit_reader.ReadBits(13, & pid_));< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   RCHECK(bit_reader.ReadBits(2, & transport_scrambling_control));< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   RCHECK(bit_reader.ReadBits(2, & adaptation_field_control));< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   RCHECK(bit_reader.ReadBits(4, & continuity_counter_));< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   payload_unit_start_indicator_ = (payload_unit_start_indicator != 0);< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   payload_ += 4;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   payload_size_ -= 4;< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "comment" > // Default values when no adaptation field.< / span > < / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   discontinuity_indicator_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   random_access_indicator_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "comment" > // Done since no adaptation field.< / span > < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "keywordflow" > if< / span > ((adaptation_field_control & 0x2) == 0)< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "comment" > // Read the adaptation field if needed.< / span > < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordtype" > int< / span > adaptation_field_length;< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   RCHECK(bit_reader.ReadBits(8, & adaptation_field_length));< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   DVLOG(LOG_LEVEL_TS) < < < span class = "stringliteral" > " adaptation_field_length=" < / span > < < adaptation_field_length;< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   payload_ += 1;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   payload_size_ -= 1;< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "keywordflow" > if< / span > ((adaptation_field_control & 0x1) == 0 & & < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   adaptation_field_length != 183) {< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   DVLOG(1) < < < span class = "stringliteral" > " adaptation_field_length=" < / span > < < adaptation_field_length;< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   }< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordflow" > if< / span > ((adaptation_field_control & 0x1) == 1 & & < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   adaptation_field_length > 182) {< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   DVLOG(1) < < < span class = "stringliteral" > " adaptation_field_length=" < / span > < < adaptation_field_length;< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "comment" > // This is not allowed by the spec.< / span > < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "comment" > // However, some badly encoded streams are using< / span > < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "comment" > // adaptation_field_length = 183< / span > < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   }< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "comment" > // adaptation_field_length = ' 0' is used to insert a single stuffing byte< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "comment" > // in the adaptation field of a transport stream packet.< / span > < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordflow" > if< / span > (adaptation_field_length == 0)< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "keywordtype" > bool< / span > status = ParseAdaptationField(& bit_reader, adaptation_field_length);< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   payload_ += adaptation_field_length;< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   payload_size_ -= adaptation_field_length;< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   }< / 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 = "keywordtype" > bool< / span > TsPacket::ParseAdaptationField(BitReader* bit_reader,< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "keywordtype" > int< / span > adaptation_field_length) {< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   DCHECK_GT(adaptation_field_length, 0);< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "keywordtype" > int< / span > adaptation_field_start_marker = bit_reader-> bits_available() / 8;< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordtype" > int< / span > discontinuity_indicator;< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "keywordtype" > int< / span > random_access_indicator;< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "keywordtype" > int< / span > elementary_stream_priority_indicator;< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordtype" > int< / span > pcr_flag;< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "keywordtype" > int< / span > opcr_flag;< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keywordtype" > int< / span > splicing_point_flag;< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "keywordtype" > int< / span > transport_private_data_flag;< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordtype" > int< / span > adaptation_field_extension_flag;< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   RCHECK(bit_reader-> ReadBits(1, & discontinuity_indicator));< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   RCHECK(bit_reader-> ReadBits(1, & random_access_indicator));< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   RCHECK(bit_reader-> ReadBits(1, & elementary_stream_priority_indicator));< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   RCHECK(bit_reader-> ReadBits(1, & pcr_flag));< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   RCHECK(bit_reader-> ReadBits(1, & opcr_flag));< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   RCHECK(bit_reader-> ReadBits(1, & splicing_point_flag));< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   RCHECK(bit_reader-> ReadBits(1, & transport_private_data_flag));< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   RCHECK(bit_reader-> ReadBits(1, & adaptation_field_extension_flag));< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   discontinuity_indicator_ = (discontinuity_indicator != 0);< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   random_access_indicator_ = (random_access_indicator != 0);< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keywordflow" > if< / span > (pcr_flag) {< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   int64_t program_clock_reference_base;< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "keywordtype" > int< / span > reserved;< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordtype" > int< / span > program_clock_reference_extension;< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   RCHECK(bit_reader-> ReadBits(33, & program_clock_reference_base));< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   RCHECK(bit_reader-> ReadBits(6, & reserved));< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   RCHECK(bit_reader-> ReadBits(9, & program_clock_reference_extension));< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   }< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keywordflow" > if< / span > (opcr_flag) {< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   int64_t original_program_clock_reference_base;< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "keywordtype" > int< / span > reserved;< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keywordtype" > int< / span > original_program_clock_reference_extension;< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   RCHECK(bit_reader-> ReadBits(33, & original_program_clock_reference_base));< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   RCHECK(bit_reader-> ReadBits(6, & reserved));< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   RCHECK(< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   bit_reader-> ReadBits(9, & original_program_clock_reference_extension));< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   }< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keywordflow" > if< / span > (splicing_point_flag) {< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keywordtype" > int< / span > splice_countdown;< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   RCHECK(bit_reader-> ReadBits(8, & splice_countdown));< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   }< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < span class = "keywordflow" > if< / span > (transport_private_data_flag) {< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "keywordtype" > int< / span > transport_private_data_length;< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   RCHECK(bit_reader-> ReadBits(8, & transport_private_data_length));< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   RCHECK(bit_reader-> SkipBits(8 * transport_private_data_length));< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   }< / 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 > (adaptation_field_extension_flag) {< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < span class = "keywordtype" > int< / span > adaptation_field_extension_length;< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   RCHECK(bit_reader-> ReadBits(8, & adaptation_field_extension_length));< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   RCHECK(bit_reader-> SkipBits(8 * adaptation_field_extension_length));< / 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 >   < span class = "comment" > // The rest of the adaptation field should be stuffing bytes.< / span > < / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < span class = "keywordtype" > int< / span > adaptation_field_remaining_size = adaptation_field_length -< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   (adaptation_field_start_marker - bit_reader-> bits_available() / 8);< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   RCHECK(adaptation_field_remaining_size > = 0);< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > k = 0; k < adaptation_field_remaining_size; k++) {< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keywordtype" > int< / span > stuffing_byte;< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   RCHECK(bit_reader-> ReadBits(8, & stuffing_byte));< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   RCHECK(stuffing_byte == 0xff);< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   }< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   DVLOG(LOG_LEVEL_TS) < < < span class = "stringliteral" > " random_access_indicator=" < / span > < < random_access_indicator_;< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   }< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   } < span class = "comment" > // namespace mp2t< / span > < / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   } < span class = "comment" > // namespace edash_packager< / span > < / div >
< / div > <!-- fragment --> < / div > <!-- contents -->
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