64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
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/*
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* Copyright (c) 2014 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 "webrtc/modules/audio_processing/channel_buffer.h"
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namespace webrtc {
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IFChannelBuffer::IFChannelBuffer(int samples_per_channel, int num_channels)
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: ivalid_(true),
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ibuf_(samples_per_channel, num_channels),
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fvalid_(true),
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fbuf_(samples_per_channel, num_channels) {}
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ChannelBuffer<int16_t>* IFChannelBuffer::ibuf() {
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RefreshI();
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fvalid_ = false;
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return &ibuf_;
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}
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ChannelBuffer<float>* IFChannelBuffer::fbuf() {
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RefreshF();
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ivalid_ = false;
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return &fbuf_;
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}
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const ChannelBuffer<int16_t>* IFChannelBuffer::ibuf_const() const {
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RefreshI();
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return &ibuf_;
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}
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const ChannelBuffer<float>* IFChannelBuffer::fbuf_const() const {
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RefreshF();
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return &fbuf_;
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}
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void IFChannelBuffer::RefreshF() const {
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if (!fvalid_) {
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assert(ivalid_);
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const int16_t* const int_data = ibuf_.data();
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float* const float_data = fbuf_.data();
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const int length = fbuf_.length();
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for (int i = 0; i < length; ++i)
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float_data[i] = int_data[i];
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fvalid_ = true;
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}
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}
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void IFChannelBuffer::RefreshI() const {
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if (!ivalid_) {
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assert(fvalid_);
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FloatS16ToS16(fbuf_.data(), ibuf_.length(), ibuf_.data());
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ivalid_ = true;
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}
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}
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} // namespace webrtc
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