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Use default audio and video PES stream IDs (0xc0 and 0xe0 respectively) 

if not specified in the WVM metadata.

BUG=24753064

Change-Id: I4c4cd0b30f0e153d46639382682da13b127dd305
This commit is contained in:
Thomas Inskip 2015-10-08 11:20:53 -07:00 committed by KongQun Yang
parent 25cac4aa12
commit 9ba1c1ebfd
1 changed files with 63 additions and 56 deletions
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119
packager/media/formats/wvm/wvm_media_parser.cc
View File

@ -23,60 +23,63 @@
&& (x != 0xFF)) && (x != 0xFF))
namespace { namespace {
const uint32_t kMpeg2ClockRate = 90000; const uint32_t kMpeg2ClockRate = 90000;
const uint32_t kPesOptPts = 0x80; const uint32_t kPesOptPts = 0x80;
const uint32_t kPesOptDts = 0x40; const uint32_t kPesOptDts = 0x40;
const uint32_t kPesOptAlign = 0x04; const uint32_t kPesOptAlign = 0x04;
const uint32_t kPsmStreamId = 0xBC; const uint32_t kPsmStreamId = 0xBC;
const uint32_t kPaddingStreamId = 0xBE; const uint32_t kPaddingStreamId = 0xBE;
const uint32_t kIndexMagic = 0x49444d69; const uint32_t kIndexMagic = 0x49444d69;
const uint32_t kIndexStreamId = 0xBF; // private_stream_2 const uint32_t kIndexStreamId = 0xBF; // private_stream_2
const uint32_t kIndexVersion4HeaderSize = 12; const uint32_t kIndexVersion4HeaderSize = 12;
const uint32_t kEcmStreamId = 0xF0; const uint32_t kEcmStreamId = 0xF0;
const uint32_t kV2MetadataStreamId = 0xF1; // EMM_stream const uint32_t kV2MetadataStreamId = 0xF1; // EMM_stream
const uint32_t kScramblingBitsMask = 0x30; const uint32_t kScramblingBitsMask = 0x30;
const uint32_t kStartCode1 = 0x00; const uint32_t kStartCode1 = 0x00;
const uint32_t kStartCode2 = 0x00; const uint32_t kStartCode2 = 0x00;
const uint32_t kStartCode3 = 0x01; const uint32_t kStartCode3 = 0x01;
const uint32_t kStartCode4Pack = 0xBA; const uint32_t kStartCode4Pack = 0xBA;
const uint32_t kStartCode4System = 0xBB; const uint32_t kStartCode4System = 0xBB;
const uint32_t kStartCode4ProgramEnd = 0xB9; const uint32_t kStartCode4ProgramEnd = 0xB9;
const uint32_t kPesStreamIdVideoMask = 0xF0; const uint32_t kPesStreamIdVideoMask = 0xF0;
const uint32_t kPesStreamIdVideo = 0xE0; const uint32_t kPesStreamIdVideo = 0xE0;
const uint32_t kPesStreamIdAudioMask = 0xE0; const uint32_t kPesStreamIdAudioMask = 0xE0;
const uint32_t kPesStreamIdAudio = 0xC0; const uint32_t kPesStreamIdAudio = 0xC0;
const uint32_t kVersion4 = 4; const uint32_t kVersion4 = 4;
const int kAdtsHeaderMinSize = 7; const int kAdtsHeaderMinSize = 7;
const uint8_t kAacSampleSizeBits = 16; const uint8_t kAacSampleSizeBits = 16;
// Applies to all video streams. // Applies to all video streams.
const uint8_t kNaluLengthSize = 4; // unit is bytes. const uint8_t kNaluLengthSize = 4; // unit is bytes.
// Placeholder sampling frequency for all audio streams, which // Placeholder sampling frequency for all audio streams, which
// will be overwritten after filter parsing. // will be overwritten after filter parsing.
const uint32_t kDefaultSamplingFrequency = 100; const uint32_t kDefaultSamplingFrequency = 100;
const uint16_t kEcmSizeBytes = 80; const uint16_t kEcmSizeBytes = 80;
const uint32_t kInitializationVectorSizeBytes = 16; const uint32_t kInitializationVectorSizeBytes = 16;
// ECM fields for processing. // ECM fields for processing.
const uint32_t kEcmContentKeySizeBytes = 16; const uint32_t kEcmContentKeySizeBytes = 16;
const uint32_t kEcmDCPFlagsSizeBytes = 3; const uint32_t kEcmDCPFlagsSizeBytes = 3;
const uint32_t kEcmCCIFlagsSizeBytes = 1; const uint32_t kEcmCCIFlagsSizeBytes = 1;
const uint32_t kEcmFlagsSizeBytes = const uint32_t kEcmFlagsSizeBytes =
kEcmCCIFlagsSizeBytes + kEcmDCPFlagsSizeBytes; kEcmCCIFlagsSizeBytes + kEcmDCPFlagsSizeBytes;
const uint32_t kEcmPaddingSizeBytes = 12; const uint32_t kEcmPaddingSizeBytes = 12;
const uint32_t kAssetKeySizeBytes = 16; const uint32_t kAssetKeySizeBytes = 16;
// Default audio and video PES stream IDs.
const uint8_t kDefaultAudioStreamId = kPesStreamIdAudio;
const uint8_t kDefaultVideoStreamId = kPesStreamIdVideo;
enum Type { enum Type {
Type_void = 0, Type_void = 0,
Type_uint8 = 1, Type_uint8 = 1,
Type_int8 = 2, Type_int8 = 2,
Type_uint16 = 3, Type_uint16 = 3,
Type_int16 = 4, Type_int16 = 4,
Type_uint32 = 5, Type_uint32 = 5,
Type_int32 = 6, Type_int32 = 6,
Type_uint64 = 7, Type_uint64 = 7,
Type_int64 = 8, Type_int64 = 8,
Type_string = 9, Type_string = 9,
Type_BinaryData = 10 Type_BinaryData = 10
}; };
} // namespace } // namespace
namespace edash_packager { namespace edash_packager {
@ -666,7 +669,7 @@ bool WvmMediaParser::ParseIndexEntry() {
break; break;
default: default:
break; break;
} }
switch (tagtype) { switch (tagtype) {
case TrackDuration: case TrackDuration:
@ -722,7 +725,9 @@ bool WvmMediaParser::ParseIndexEntry() {
pixel_width, pixel_height, trick_play_rate, nalu_length_size, NULL, 0, pixel_width, pixel_height, trick_play_rate, nalu_length_size, NULL, 0,
true)); true));
program_demux_stream_map_[base::UintToString(index_program_id_) + ":" + program_demux_stream_map_[base::UintToString(index_program_id_) + ":" +
base::UintToString(video_pes_stream_id)] = base::UintToString(video_pes_stream_id ?
video_pes_stream_id :
kDefaultVideoStreamId)] =
stream_id_count_++; stream_id_count_++;
} }
if (has_audio) { if (has_audio) {
@ -732,7 +737,9 @@ bool WvmMediaParser::ParseIndexEntry() {
audio_codec_string, std::string(), kAacSampleSizeBits, num_channels, audio_codec_string, std::string(), kAacSampleSizeBits, num_channels,
sampling_frequency, NULL, 0, true)); sampling_frequency, NULL, 0, true));
program_demux_stream_map_[base::UintToString(index_program_id_) + ":" + program_demux_stream_map_[base::UintToString(index_program_id_) + ":" +
base::UintToString(audio_pes_stream_id)] = base::UintToString(audio_pes_stream_id ?
audio_pes_stream_id :
kDefaultAudioStreamId)] =
stream_id_count_++; stream_id_count_++;
} }
} }