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Since NetEq4 is ready to handle 48 kHz codec, it is good to remove the 48-to-32kHz downsampling of Opus output. This facilitates webrtc to make full use of Opus's bandwidth and eliminates unneeded computation in resampling.

Browse Source 
TEST=passed_all_trybots
R=henrik.lundin@webrtc.org, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/16619005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6458 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
minyue@webrtc.org
2014-06-17 08:02:05 +00:00
parent 44a317a698
commit 8f8503d947
12 changed files with 249 additions and 433 deletions
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10
webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
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@ -1616,14 +1616,8 @@ int AudioCodingModuleImpl::ReceiveFrequency() const {
int codec_id = receiver_.last_audio_codec_id();
int sample_rate_hz;
if (codec_id < 0)
sample_rate_hz = receiver_.current_sample_rate_hz();
else
sample_rate_hz = ACMCodecDB::database_[codec_id].plfreq;
// TODO(tlegrand): Remove this option when we have full 48 kHz support.
return (sample_rate_hz > 32000) ? 32000 : sample_rate_hz;
return codec_id < 0 ? receiver_.current_sample_rate_hz() :
ACMCodecDB::database_[codec_id].plfreq;
}
// Get current playout frequency.