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Add a "Smart flushing" feature to NetEq.

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Instead of flushing all packets, it makes sense to flush down to the target level instead. This CL also initiates a flush when the packet buffer is a multiple of the target level, instead of waiting until it is completely full.

Bug: webrtc:12201
Change-Id: I8775147624536824eb88752f6e8ffe57ec6199cb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/193941
Commit-Queue: Ivo Creusen <ivoc@webrtc.org>
Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32701}
This commit is contained in:
Ivo Creusen
2020-11-25 11:32:40 +01:00
committed by Commit Bot
parent 54b91412de
commit 7b463c5f67
12 changed files with 403 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
modules/audio_coding/neteq/decision_logic.cc
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@ -211,6 +211,7 @@ absl::optional<int> DecisionLogic::PacketArrived(
int fs_hz,
bool should_update_stats,
const PacketArrivedInfo& info) {
buffer_flush_ = buffer_flush_ || info.buffer_flush;
if (info.is_cng_or_dtmf) {
last_pack_cng_or_dtmf_ = true;
return absl::nullopt;
@ -238,7 +239,12 @@ void DecisionLogic::FilterBufferLevel(size_t buffer_size_samples) {
timescale_countdown_ = tick_timer_->GetNewCountdown(kMinTimescaleInterval);
}
buffer_level_filter_->Update(buffer_size_samples, time_stretched_samples);
if (buffer_flush_) {
buffer_level_filter_->SetFilteredBufferLevel(buffer_size_samples);
buffer_flush_ = false;
} else {
buffer_level_filter_->Update(buffer_size_samples, time_stretched_samples);
}
prev_time_scale_ = false;
time_stretched_cn_samples_ = 0;
}