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// Copyright 2016 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 COBALT_MEDIA_BASE_OUTPUT_DEVICE_INFO_H_
#define COBALT_MEDIA_BASE_OUTPUT_DEVICE_INFO_H_
#include <string>
#include "base/callback.h"
#include "cobalt/media/base/audio_parameters.h"
#include "cobalt/media/base/media_export.h"
namespace cobalt {
namespace media {
// Result of an audio output device switch operation
enum OutputDeviceStatus {
OUTPUT_DEVICE_STATUS_OK = 0,
OUTPUT_DEVICE_STATUS_ERROR_NOT_FOUND,
OUTPUT_DEVICE_STATUS_ERROR_NOT_AUTHORIZED,
OUTPUT_DEVICE_STATUS_ERROR_TIMED_OUT,
OUTPUT_DEVICE_STATUS_ERROR_INTERNAL,
OUTPUT_DEVICE_STATUS_LAST = OUTPUT_DEVICE_STATUS_ERROR_INTERNAL,
};
using OutputDeviceStatusCB = base::Callback<void(OutputDeviceStatus)>;
// Output device information returned by
// AudioRendererSink::GetOutputDeviceInfo()
class MEDIA_EXPORT OutputDeviceInfo {
public:
// Use this constructor to initialize with "no info available" values.
OutputDeviceInfo();
// Use this constructor to indicate a specific error status of the device.
explicit OutputDeviceInfo(OutputDeviceStatus device_status);
OutputDeviceInfo(const std::string& device_id,
OutputDeviceStatus device_status,
const AudioParameters& output_params);
OutputDeviceInfo(const OutputDeviceInfo& other);
OutputDeviceInfo& operator=(const OutputDeviceInfo&);
~OutputDeviceInfo();
// Returns the device ID.
const std::string& device_id() const { return device_id_; }
// Returns the status of output device.
OutputDeviceStatus device_status() const { return device_status_; }
// Returns the device's audio output parameters.
// The return value is undefined if the device status (as returned by
// device_status()) is different from OUTPUT_DEVICE_STATUS_OK.
const AudioParameters& output_params() const { return output_params_; }
// Returns a human-readable string describing |*this|. For debugging & test
// output only.
std::string AsHumanReadableString() const;
private:
std::string device_id_;
OutputDeviceStatus device_status_;
AudioParameters output_params_;
};
} // namespace media
} // namespace cobalt
#endif // COBALT_MEDIA_BASE_OUTPUT_DEVICE_INFO_H_