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Adding DTX to WebRTC Opus wrapper

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This is a step toward adding Opus DTX support in WebRTC.

Note that opus_encode() returns 1 byte in case of DTX, then the packet does not need to be transmitted. See

https://mf4.xiph.org/jenkins/view/opus/job/opus/ws/doc/html/group__opus__encoder.html

We transmit the first 1-byte packet to let decoder be in-sync

BUG=webrtc:1014
R=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/13219004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7846 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
minyue@webrtc.org
2014-12-09 13:27:39 +00:00
parent 5c3ee4bce6
commit 4321f175f1
5 changed files with 390 additions and 108 deletions
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2
webrtc/modules/audio_coding/codecs/opus/opus_inst.h
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@ -15,12 +15,14 @@
struct WebRtcOpusEncInst {
OpusEncoder* encoder;
int in_dtx_mode;
};
struct WebRtcOpusDecInst {
OpusDecoder* decoder;
int prev_decoded_samples;
int channels;
int in_dtx_mode;
};