Let NetEq use the PLC output from a decoder
This change enables NetEq to use the packet concealment audio (aka
PLC) produced by a decoder. The change also includes a new API to the
AudioDecoder interface, which lets the decoder implementation generate
and deliver concealment audio.
Bug: webrtc:9180
Change-Id: Icaacebccf645d4694b0d2d6310f6f2c7132881c4
Reviewed-on: https://webrtc-review.googlesource.com/96340
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Minyue Li <minyue@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24738}diff --git a/modules/audio_coding/neteq/sync_buffer.cc b/modules/audio_coding/neteq/sync_buffer.cc
index 82ca16f..fee18cc 100644
--- a/modules/audio_coding/neteq/sync_buffer.cc
+++ b/modules/audio_coding/neteq/sync_buffer.cc
@@ -36,6 +36,16 @@
dtmf_index_ -= std::min(dtmf_index_, samples_added);
}
+void SyncBuffer::PushBackInterleaved(const rtc::BufferT<int16_t>& append_this) {
+ const size_t size_before_adding = Size();
+ AudioMultiVector::PushBackInterleaved(append_this);
+ const size_t samples_added_per_channel = Size() - size_before_adding;
+ RTC_DCHECK_EQ(samples_added_per_channel * Channels(), append_this.size());
+ AudioMultiVector::PopFront(samples_added_per_channel);
+ next_index_ -= std::min(next_index_, samples_added_per_channel);
+ dtmf_index_ -= std::min(dtmf_index_, samples_added_per_channel);
+}
+
void SyncBuffer::PushFrontZeros(size_t length) {
InsertZerosAtIndex(length, 0);
}