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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_AUDIO_AUDIO_INPUT_DELEGATE_H_
#define MEDIA_AUDIO_AUDIO_INPUT_DELEGATE_H_
#include <memory>
#include <string>
#include "base/memory/ref_counted.h"
#include "media/base/media_export.h"
namespace base {
class CancelableSyncSocket;
class ReadOnlySharedMemoryRegion;
} // namespace base
namespace media {
class MEDIA_EXPORT AudioInputDelegate {
public:
// An AudioInputDelegate must not call back to its EventHandler in its
// constructor.
class MEDIA_EXPORT EventHandler {
public:
virtual ~EventHandler() = 0;
// Called when the underlying stream is ready for recording.
virtual void OnStreamCreated(
int stream_id,
base::ReadOnlySharedMemoryRegion shared_memory_region,
std::unique_ptr<base::CancelableSyncSocket> socket,
bool initially_muted) = 0;
// Called if stream encounters an error and has become unusable.
virtual void OnStreamError(int stream_id) = 0;
};
virtual ~AudioInputDelegate() = 0;
virtual int GetStreamId() = 0;
// Stream control:
virtual void OnRecordStream() = 0;
virtual void OnSetVolume(double volume) = 0;
virtual void OnSetOutputDeviceForAec(
const std::string& raw_output_device_id) = 0;
};
} // namespace media
#endif // MEDIA_AUDIO_AUDIO_INPUT_DELEGATE_H_
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