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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_WEBRTC_HELPERS_H_
#define MEDIA_WEBRTC_HELPERS_H_
#include <optional>
#include "base/component_export.h"
#include "base/files/file.h"
#include "build/build_config.h"
#include "media/base/audio_bus.h"
#include "media/base/audio_parameters.h"
#include "media/base/audio_processing.h"
#include "third_party/webrtc/api/task_queue/task_queue_base.h"
#include "third_party/webrtc/modules/audio_processing/include/audio_processing.h"
namespace media {
COMPONENT_EXPORT(MEDIA_WEBRTC)
constexpr int MaxWebRtcAnalogGainLevel() {
return 255;
}
COMPONENT_EXPORT(MEDIA_WEBRTC)
webrtc::StreamConfig CreateStreamConfig(const AudioParameters& parameters);
// Creates and configures a `webrtc::AudioProcessing` audio processing module
// (APM), based on the provided parameters and on features and field trials.
// Returns nullptr if settings.NeedWebrtcAudioProcessing() is false.
COMPONENT_EXPORT(MEDIA_WEBRTC)
rtc::scoped_refptr<webrtc::AudioProcessing> CreateWebRtcAudioProcessingModule(
const AudioProcessingSettings& settings);
// Starts the echo cancellation dump in
// |audio_processing|. |worker_queue| must be kept alive until either
// |audio_processing| is destroyed, or
// StopEchoCancellationDump(audio_processing) is called.
COMPONENT_EXPORT(MEDIA_WEBRTC)
void StartEchoCancellationDump(webrtc::AudioProcessing* audio_processing,
base::File aec_dump_file,
webrtc::TaskQueueBase* worker_queue);
// Stops the echo cancellation dump in |audio_processing|.
// This method has no impact if echo cancellation dump has not been started on
// |audio_processing|.
COMPONENT_EXPORT(MEDIA_WEBRTC)
void StopEchoCancellationDump(webrtc::AudioProcessing* audio_processing);
} // namespace media
#endif // MEDIA_WEBRTC_HELPERS_H_