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Tests for multi-stream Opus.

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This CL (mainly) adds bit-exactness tests for multi-stream Opus. The
tests are in audio_coding_unittest.cc. Some refactoring of
AcmSendTestOldApi, AcmSenderBitExactnessOldApi is done to make it
possible. A few checks for "channels \in {1, 2}" are replaced with
"channels \in {1, 2, 4, 6, 8}" in the WebRTC Opus codec wrapper. A few
other changes are made to be able to write and read multi-channel WAV
files.

The SDP changes are NOT included; as of this CL there is no way to set
up a multi-stream opus en/de-coder from SDP strings.

Bug: webrtc:8649
Change-Id: I1d93a9b8eecc3f6e19896ff2e2ce9b63da77a23c
Reviewed-on: https://webrtc-review.googlesource.com/c/114883
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Commit-Queue: Alex Loiko <aleloi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26742}
This commit is contained in:
Alex Loiko
2019-02-15 10:44:28 +01:00
committed by Commit Bot
parent f2727fb8d3
commit 9c31ac2323
10 changed files with 90 additions and 26 deletions
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3
modules/audio_coding/codecs/opus/audio_decoder_opus.cc
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@ -71,7 +71,8 @@ class OpusFrame : public AudioDecoder::EncodedAudioFrame {
AudioDecoderOpusImpl::AudioDecoderOpusImpl(size_t num_channels)
: channels_(num_channels) {
RTC_DCHECK(num_channels == 1 || num_channels == 2);
RTC_DCHECK(num_channels == 1 || num_channels == 2 || num_channels == 4 ||
num_channels == 6 || num_channels == 8);
const int error = WebRtcOpus_DecoderCreate(&dec_state_, channels_);
RTC_DCHECK(error == 0);
WebRtcOpus_DecoderInit(dec_state_);