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https://github.com/mollyim/webrtc.git
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ce202a0f98
This is a reland ofa66395e72fOriginal change's description: > Reland "Add core multi-channel pipeline in AEC3 This CL adds basic the basic pipeline to support multi-channel processing in AEC3." > > This is a reland off3a197e553> > Original change's description: > > Add core multi-channel pipeline in AEC3 > > This CL adds basic the basic pipeline to support multi-channel > > processing in AEC3. > > > > Apart from that, it removes the 8 kHz processing support in several > > places of the AEC3 code. > > > > Bug: webrtc:10913 > > Change-Id: If5b75fa325ed0071deea94a7546cb4a7adf22137 > > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/150332 > > Commit-Queue: Per Åhgren <peah@webrtc.org> > > Reviewed-by: Sam Zackrisson <saza@webrtc.org> > > Cr-Commit-Position: refs/heads/master@{#29017} > > Bug: webrtc:10913 > Change-Id: Ifc4b13bd994cfd22dca8f8755fa5700617cc379d > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151124 > Reviewed-by: Sam Zackrisson <saza@webrtc.org> > Commit-Queue: Per Åhgren <peah@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#29034} Bug: webrtc:10913 Change-Id: Id8da5666df8c86f290c73ad5dc9958199f1a7ebe Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151127 Commit-Queue: Sam Zackrisson <saza@webrtc.org> Reviewed-by: Sam Zackrisson <saza@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29042}
88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_processing/aec3/frame_blocker.h"
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#include "modules/audio_processing/aec3/aec3_common.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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FrameBlocker::FrameBlocker(size_t num_bands, size_t num_channels)
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: num_bands_(num_bands),
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num_channels_(num_channels),
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buffer_(num_bands_, std::vector<std::vector<float>>(num_channels)) {
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RTC_DCHECK_LT(0, num_bands);
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RTC_DCHECK_LT(0, num_channels);
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for (auto& band : buffer_) {
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for (auto& channel : band) {
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channel.reserve(kBlockSize);
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RTC_DCHECK(channel.empty());
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}
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}
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}
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FrameBlocker::~FrameBlocker() = default;
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void FrameBlocker::InsertSubFrameAndExtractBlock(
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const std::vector<std::vector<rtc::ArrayView<float>>>& sub_frame,
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std::vector<std::vector<std::vector<float>>>* block) {
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RTC_DCHECK(block);
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RTC_DCHECK_EQ(num_bands_, block->size());
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RTC_DCHECK_EQ(num_bands_, sub_frame.size());
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for (size_t band = 0; band < num_bands_; ++band) {
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RTC_DCHECK_EQ(num_channels_, (*block)[band].size());
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RTC_DCHECK_EQ(num_channels_, sub_frame[band].size());
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for (size_t channel = 0; channel < num_channels_; ++channel) {
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RTC_DCHECK_GE(kBlockSize - 16, buffer_[band][channel].size());
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RTC_DCHECK_EQ(kBlockSize, (*block)[band][channel].size());
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RTC_DCHECK_EQ(kSubFrameLength, sub_frame[band][channel].size());
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const int samples_to_block = kBlockSize - buffer_[band][channel].size();
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(*block)[band][channel].clear();
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(*block)[band][channel].insert((*block)[band][channel].begin(),
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buffer_[band][channel].begin(),
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buffer_[band][channel].end());
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(*block)[band][channel].insert(
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(*block)[band][channel].begin() + buffer_[band][channel].size(),
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sub_frame[band][channel].begin(),
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sub_frame[band][channel].begin() + samples_to_block);
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buffer_[band][channel].clear();
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buffer_[band][channel].insert(
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buffer_[band][channel].begin(),
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sub_frame[band][channel].begin() + samples_to_block,
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sub_frame[band][channel].end());
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}
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}
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}
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bool FrameBlocker::IsBlockAvailable() const {
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return kBlockSize == buffer_[0][0].size();
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}
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void FrameBlocker::ExtractBlock(
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std::vector<std::vector<std::vector<float>>>* block) {
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RTC_DCHECK(block);
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RTC_DCHECK_EQ(num_bands_, block->size());
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RTC_DCHECK(IsBlockAvailable());
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for (size_t band = 0; band < num_bands_; ++band) {
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RTC_DCHECK_EQ(num_channels_, (*block)[band].size());
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for (size_t channel = 0; channel < num_channels_; ++channel) {
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RTC_DCHECK_EQ(kBlockSize, buffer_[band][channel].size());
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RTC_DCHECK_EQ(kBlockSize, (*block)[band][channel].size());
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(*block)[band][channel].clear();
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(*block)[band][channel].insert((*block)[band][channel].begin(),
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buffer_[band][channel].begin(),
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buffer_[band][channel].end());
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buffer_[band][channel].clear();
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}
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}
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}
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} // namespace webrtc
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