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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CONTROL_MOBILE_IMPL_H_
#define WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CONTROL_MOBILE_IMPL_H_
#include <memory>
#include <vector>
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/criticalsection.h"
#include "webrtc/base/swap_queue.h"
#include "webrtc/modules/audio_processing/include/audio_processing.h"
#include "webrtc/modules/audio_processing/render_queue_item_verifier.h"
namespace webrtc {
class AudioBuffer;
class EchoControlMobileImpl : public EchoControlMobile {
public:
EchoControlMobileImpl(rtc::CriticalSection* crit_render,
rtc::CriticalSection* crit_capture);
~EchoControlMobileImpl() override;
void ProcessRenderAudio(rtc::ArrayView<const int16_t> packed_render_audio);
int ProcessCaptureAudio(AudioBuffer* audio, int stream_delay_ms);
// EchoControlMobile implementation.
bool is_enabled() const override;
RoutingMode routing_mode() const override;
bool is_comfort_noise_enabled() const override;
void Initialize(int sample_rate_hz,
size_t num_reverse_channels,
size_t num_output_channels);
static void PackRenderAudioBuffer(const AudioBuffer* audio,
size_t num_output_channels,
size_t num_channels,
std::vector<int16_t>* packed_buffer);
static size_t NumCancellersRequired(size_t num_output_channels,
size_t num_reverse_channels);
private:
class Canceller;
struct StreamProperties;
// EchoControlMobile implementation.
int Enable(bool enable) override;
int set_routing_mode(RoutingMode mode) override;
int enable_comfort_noise(bool enable) override;
int SetEchoPath(const void* echo_path, size_t size_bytes) override;
int GetEchoPath(void* echo_path, size_t size_bytes) const override;
int Configure();
rtc::CriticalSection* const crit_render_ ACQUIRED_BEFORE(crit_capture_);
rtc::CriticalSection* const crit_capture_;
bool enabled_ = false;
RoutingMode routing_mode_ GUARDED_BY(crit_capture_);
bool comfort_noise_enabled_ GUARDED_BY(crit_capture_);
unsigned char* external_echo_path_ GUARDED_BY(crit_render_)
GUARDED_BY(crit_capture_);
std::vector<std::unique_ptr<Canceller>> cancellers_;
std::unique_ptr<StreamProperties> stream_properties_;
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(EchoControlMobileImpl);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CONTROL_MOBILE_IMPL_H_
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