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Not dropping the refresh DTX packets but substituting them by 1 byte packets.

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Bug: webrtc:12380
Change-Id: I27029c591ac2555d6ae61b706adcf97c9498a9fb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217880
Reviewed-by: Minyue Li <minyue@webrtc.org>
Commit-Queue: Jesus de Vicente Pena <devicentepena@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33983}
This commit is contained in:
Jesús de Vicente Peña
2021-05-11 13:54:42 +02:00
committed by WebRTC LUCI CQ
parent 50a0b1219e
commit d674ec77af
2 changed files with 18 additions and 5 deletions
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12
modules/audio_coding/codecs/opus/opus_interface.cc
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@ -247,9 +247,15 @@ int WebRtcOpus_Encode(OpusEncInst* inst,
inst, rtc::MakeArrayView(audio_in, samples),
rtc::MakeArrayView(encoded, res))) {
// This packet is a high energy refresh DTX packet. For avoiding an increase
// of the energy in the DTX region at the decoder, this packet is dropped.
inst->in_dtx_mode = 0;
return 0;
// of the energy in the DTX region at the decoder, this packet is
// substituted by a TOC byte with one empty frame.
// The number of frames described in the TOC byte
// (https://tools.ietf.org/html/rfc6716#section-3.1) are overwritten to
// always indicate one frame (last two bits equal to 0).
encoded[0] = encoded[0] & 0b11111100;
inst->in_dtx_mode = 1;
// The payload is just the TOC byte and has 1 byte as length.
return 1;
}
inst->in_dtx_mode = 0;
return res;