| // 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_ |