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Code Issues Releases Wiki Activity

Support Opus audio-level

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This commit is contained in:
winlin 2019-01-17 16:01:43 +08:00
parent f1b1f78c4e
commit 98706f793e
2 changed files with 31 additions and 13 deletions
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11
trunk/src/kernel/srs_kernel_codec.hpp
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@ -164,7 +164,7 @@ std::string srs_audio_codec_id2str(SrsAudioCodecId codec);
/**
* The audio AAC frame trait(characteristic).
* @doc video_file_format_spec_v10_1.pdf, page 77, E.4.2 Audio Tags
* AACPacketType IF SoundFormat == 10 UI8
* AACPacketType IF SoundFormat == 10 or 13 UI8
* The following values are defined:
* 0 = AAC sequence header
* 1 = AAC raw
@ -172,11 +172,16 @@ std::string srs_audio_codec_id2str(SrsAudioCodecId codec);
enum SrsAudioAacFrameTrait
{
// set to the max value to reserved, for array map.
SrsAudioAacFrameTraitReserved = 2,
SrsAudioAacFrameTraitForbidden = 2,
SrsAudioAacFrameTraitReserved = 0xff,
SrsAudioAacFrameTraitForbidden = 0xff,
SrsAudioAacFrameTraitSequenceHeader = 0,
SrsAudioAacFrameTraitRawData = 1,
// For Opus, the frame trait, may has more than one traits.
SrsAudioOpusFrameTraitRaw = 2,
SrsAudioOpusFrameTraitSamplingRate = 4,
SrsAudioOpusFrameTraitAudioLevel = 8,
};
/**

33
trunk/src/libs/srs_librtmp.cpp
View file

@ -2363,7 +2363,7 @@ char srs_utils_flv_audio_sound_format(char* data, int size)
char srs_utils_flv_audio_sound_rate(char* data, int size)
{
if (size < 2) {
if (size < 3) {
return -1;
}
@ -2372,8 +2372,14 @@ char srs_utils_flv_audio_sound_rate(char* data, int size)
// For Opus, the first UINT8 is sampling rate.
uint8_t sound_format = (data[0] >> 4) & 0x0f;
if (sound_format == 13) {
sound_rate = data[1];
if (sound_format != SrsAudioCodecIdOpus) {
return sound_rate;
}
// The FrameTrait for AAC or Opus.
uint8_t frame_trait = data[1];
if ((frame_trait&SrsAudioOpusFrameTraitSamplingRate) == SrsAudioOpusFrameTraitSamplingRate) {
sound_rate = data[2];
}
return sound_rate;
@ -2409,16 +2415,13 @@ char srs_utils_flv_audio_aac_packet_type(char* data, int size)
return -1;
}
if (srs_utils_flv_audio_sound_format(data, size) != 10) {
uint8_t sound_format = srs_utils_flv_audio_sound_format(data, size);
if (sound_format != SrsAudioCodecIdAAC && sound_format != SrsAudioCodecIdOpus) {
return -1;
}
uint8_t aac_packet_type = data[1];
if (aac_packet_type > 1) {
return -1;
}
return aac_packet_type;
uint8_t frame_trait = data[1];
return frame_trait;
}
char* srs_human_amf0_print(srs_amf0_t amf0, char** pdata, int* psize)
@ -2624,6 +2627,16 @@ const char* srs_human_flv_audio_aac_packet_type2string(char aac_packet_type)
switch (aac_packet_type) {
case 0: return sps_pps;
case 1: return raw;
// See enum SrsAudioAacFrameTrait
// For Opus, the frame trait, may has more than one traits.
case 2: return "RAW";
case 4: return "SR";
case 8: return "AL";
case 6: return "RAW|SR";
case 10: return "RAW|AL";
case 14: return "RAW|SR|AL";
default: return unknown;
}