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Encoder side of Multistream Opus.

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Follows https://webrtc-review.googlesource.com/c/src/+/129768 closely.
Adds an ENCODER and sets it up to parse SDP config for multistream
opus.

E.g. this is the new SDP syntax for 6.1 surround sound:
"multiopus/48000/6 channel_mapping=0,4,1,2,3,5 num_streams=4 coupled_streams=2"


Bug: webrtc:8649
Change-Id: I3fc341e76f5c41dab0243cf65f6461e4c3d9d67d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132001
Commit-Queue: Alex Loiko <aleloi@webrtc.org>
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27775}
This commit is contained in:
Alex Loiko
2019-04-25 15:09:32 +02:00
committed by Commit Bot
parent 9e79e6b9b3
commit 44c21f48ee
14 changed files with 966 additions and 35 deletions
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3
api/audio_codecs/builtin_audio_encoder_factory.cc
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@ -22,6 +22,7 @@
#endif
#include "api/audio_codecs/isac/audio_encoder_isac.h"
#if WEBRTC_USE_BUILTIN_OPUS
#include "api/audio_codecs/opus/audio_encoder_multi_channel_opus.h"
#include "api/audio_codecs/opus/audio_encoder_opus.h" // nogncheck
#endif
@ -57,7 +58,7 @@ rtc::scoped_refptr<AudioEncoderFactory> CreateBuiltinAudioEncoderFactory() {
return CreateAudioEncoderFactory<
#if WEBRTC_USE_BUILTIN_OPUS
AudioEncoderOpus,
AudioEncoderOpus, NotAdvertised<AudioEncoderMultiChannelOpus>,
#endif
AudioEncoderIsac, AudioEncoderG722,