NetEq: Remove background noise fill during long expansions
NetEq was (up until this CL) capable of fading over to generating a
constant background noise when voice expansion had lasted too long.
However, the code has for a really long time only ever used the "off"
mode, which meant that long expansions are faded down to complete
silence (only zeros), i.e., background noise fill was not used.
Removing the other two modes ("on" and "fade") simplifies the code.
Bug: webrtc:9180
Change-Id: Ia2d46960208f3d75c9659ad3f027c52e5ecfb6b0
Reviewed-on: https://webrtc-review.googlesource.com/71485
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Minyue Li <minyue@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22969}diff --git a/modules/audio_coding/neteq/background_noise.cc b/modules/audio_coding/neteq/background_noise.cc
index eda5c75..50ffa86 100644
--- a/modules/audio_coding/neteq/background_noise.cc
+++ b/modules/audio_coding/neteq/background_noise.cc
@@ -27,8 +27,7 @@
BackgroundNoise::BackgroundNoise(size_t num_channels)
: num_channels_(num_channels),
- channel_parameters_(new ChannelParameters[num_channels_]),
- mode_(NetEq::kBgnOn) {
+ channel_parameters_(new ChannelParameters[num_channels_]) {
Reset();
}
@@ -39,7 +38,6 @@
for (size_t channel = 0; channel < num_channels_; ++channel) {
channel_parameters_[channel].Reset();
}
- // Keep _bgnMode as it is.
}
void BackgroundNoise::Update(const AudioMultiVector& input,