2015-10-28 00:32:32 +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_5eb2e460866db0ed29e32d64402e5c22.html" > filters< / a > < / li > < / ul >
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< div class = "title" > avc_decoder_configuration.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 2015 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/filters/avc_decoder_configuration.h" < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
2016-03-03 22:48:19 +00:00
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include " packager/base/strings/string_number_conversions.h" < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include " packager/base/strings/string_util.h" < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/media/base/buffer_reader.h" < / span > < / div >
2016-04-12 21:32:58 +00:00
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/media/base/rcheck.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " packager/media/filters/h264_parser.h" < / span > < / div >
2016-03-03 22:48:19 +00:00
< 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" > namespace < / span > edash_packager {< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   AVCDecoderConfiguration::AVCDecoderConfiguration()< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   : version_(0),< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   profile_indication_(0),< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   profile_compatibility_(0),< / div >
2016-03-04 18:42:55 +00:00
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   avc_level_(0) {}< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   AVCDecoderConfiguration::~AVCDecoderConfiguration() {}< / 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 = "keywordtype" > bool< / span > AVCDecoderConfiguration::ParseInternal() {< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "comment" > // See ISO 14496-15 sec 5.3.3.1.2< / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   BufferReader reader(< a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#ae2c11d7dc33c3f90535218797ca6b4d2" > data< / a > (), < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a5233b5e870d55f0487ee0387ad69921f" > data_size< / a > ());< / 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 >   RCHECK(reader.Read1(& version_) & & version_ == 1 & & < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   reader.Read1(& profile_indication_) & & < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   reader.Read1(& profile_compatibility_) & & reader.Read1(& avc_level_));< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   uint8_t length_size_minus_one;< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   RCHECK(reader.Read1(& length_size_minus_one));< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "keywordflow" > if< / span > ((length_size_minus_one & 0x3) == 2) {< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Invalid NALU length size." < / span > ;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a7f93b527e9c1bd1034f98861ca4f57f7" > set_nalu_length_size< / a > ((length_size_minus_one & 0x3) + 1);< / 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 >   uint8_t num_sps;< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   RCHECK(reader.Read1(& num_sps));< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   num_sps & = 0x1f;< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordflow" > if< / span > (num_sps < 1) {< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   LOG(ERROR) < < < span class = "stringliteral" > " No SPS found." < / span > ;< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   }< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordflow" > for< / span > (uint8_t i = 0; i < num_sps; i++) {< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   uint16_t size = 0;< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   RCHECK(reader.Read2(& size));< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keyword" > const< / span > uint8_t* nalu_data = reader.data() + reader.pos();< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   RCHECK(reader.SkipBytes(size));< / 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 >   Nalu < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a7e8ebb71676d606bc8690c3ede399629" > nalu< / a > ;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   RCHECK(nalu.InitializeFromH264(nalu_data, size));< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   RCHECK(nalu.type() == Nalu::H264_SPS);< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a9e094293bce0ea72b2546088f6c250d8" > AddNalu< / a > (nalu);< / div >
2016-03-03 22:48:19 +00:00
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
2016-03-04 18:42:55 +00:00
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > if< / span > (i == 0) {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > // It is unlikely to have more than one SPS in practice. Also there' s< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "comment" > // no way to change the {coded,pixel}_{width,height} dynamically from< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "comment" > // VideoStreamInfo.< / span > < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordtype" > int< / span > sps_id = 0;< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   H264Parser parser;< / div >
2016-03-14 22:39:26 +00:00
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   RCHECK(parser.ParseSps(nalu, & sps_id) == H264Parser::kOk);< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   RCHECK(ExtractResolutionFromSps(*parser.GetSps(sps_id), & coded_width_,< / div >
2016-03-04 18:42:55 +00:00
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   & coded_height_, & pixel_width_,< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   & pixel_height_));< / 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 >   }< / 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 >   uint8_t pps_count;< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   RCHECK(reader.Read1(& pps_count));< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordflow" > for< / span > (uint8_t i = 0; i < pps_count; i++) {< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   uint16_t size = 0;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   RCHECK(reader.Read2(& size));< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keyword" > const< / span > uint8_t* nalu_data = reader.data() + reader.pos();< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   RCHECK(reader.SkipBytes(size));< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   Nalu < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a7e8ebb71676d606bc8690c3ede399629" > nalu< / a > ;< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   RCHECK(nalu.InitializeFromH264(nalu_data, size));< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   RCHECK(nalu.type() == Nalu::H264_PPS);< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < a class = "code" href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a9e094293bce0ea72b2546088f6c250d8" > AddNalu< / a > (nalu);< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   }< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   }< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > < a class = "line" href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#ad03be6192998b36ef2364266e5604c19" > 91< / a > < / span >   std::string < a class = "code" href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#ad03be6192998b36ef2364266e5604c19" > AVCDecoderConfiguration::GetCodecString< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#ad03be6192998b36ef2364266e5604c19" > GetCodecString< / a > (profile_indication_, profile_compatibility_,< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   avc_level_);< / 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 >   < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > < a class = "line" href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#a88c2e4c0fd4dd99f6a1b02649a6b5831" > 96< / a > < / span >   std::string < a class = "code" href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#ad03be6192998b36ef2364266e5604c19" > AVCDecoderConfiguration::GetCodecString< / a > (< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   uint8_t profile_indication,< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   uint8_t profile_compatibility,< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   uint8_t avc_level) {< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keyword" > const< / span > uint8_t bytes[] = {profile_indication, profile_compatibility,< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   avc_level};< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordflow" > return< / span > < span class = "stringliteral" > " avc1." < / span > +< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   base::StringToLowerASCII(base::HexEncode(bytes, arraysize(bytes)));< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   }< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   } < span class = "comment" > // namespace edash_packager< / span > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1AVCDecoderConfiguration_html_ad03be6192998b36ef2364266e5604c19" > < div class = "ttname" > < a href = "../../d6/d49/classedash__packager_1_1media_1_1AVCDecoderConfiguration.html#ad03be6192998b36ef2364266e5604c19" > edash_packager::media::AVCDecoderConfiguration::GetCodecString< / a > < / div > < div class = "ttdeci" > std::string GetCodecString() const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../db/d01/avc__decoder__configuration_8cc_source.html#l00091" > avc_decoder_configuration.cc:91< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1DecoderConfiguration_html_a7e8ebb71676d606bc8690c3ede399629" > < div class = "ttname" > < a href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a7e8ebb71676d606bc8690c3ede399629" > edash_packager::media::DecoderConfiguration::nalu< / a > < / div > < div class = "ttdeci" > const Nalu & nalu(size_t i) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d09/decoder__configuration_8h_source.html#l00044" > decoder_configuration.h:44< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1DecoderConfiguration_html_ae2c11d7dc33c3f90535218797ca6b4d2" > < div class = "ttname" > < a href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#ae2c11d7dc33c3f90535218797ca6b4d2" > edash_packager::media::DecoderConfiguration::data< / a > < / div > < div class = "ttdeci" > const uint8_t * data() const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d09/decoder__configuration_8h_source.html#l00053" > decoder_configuration.h:53< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1DecoderConfiguration_html_a9e094293bce0ea72b2546088f6c250d8" > < div class = "ttname" > < a href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a9e094293bce0ea72b2546088f6c250d8" > edash_packager::media::DecoderConfiguration::AddNalu< / a > < / div > < div class = "ttdeci" > void AddNalu(const Nalu & nalu)< / div > < div class = "ttdoc" > Adds the given Nalu to the configuration. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/d2c/decoder__configuration_8cc_source.html#l00021" > decoder_configuration.cc:21< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1DecoderConfiguration_html_a5233b5e870d55f0487ee0387ad69921f" > < div class = "ttname" > < a href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a5233b5e870d55f0487ee0387ad69921f" > edash_packager::media::DecoderConfiguration::data_size< / a > < / div > < div class = "ttdeci" > size_t data_size() const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d09/decoder__configuration_8h_source.html#l00056" > decoder_configuration.h:56< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1DecoderConfiguration_html_a7f93b527e9c1bd1034f98861ca4f57f7" > < div class = "ttname" > < a href = "../../d8/dfb/classedash__packager_1_1media_1_1DecoderConfiguration.html#a7f93b527e9c1bd1034f98861ca4f57f7" > edash_packager::media::DecoderConfiguration::set_nalu_length_size< / a > < / div > < div class = "ttdeci" > void set_nalu_length_size(uint8_t nalu_length_size)< / div > < div class = "ttdoc" > Sets the size of the NAL unit length field. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d09/decoder__configuration_8h_source.html#l00059" > decoder_configuration.h:59< / a > < / div > < / div >
2015-10-28 00:32:32 +00:00
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