| // Copyright 2020 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 COMPONENTS_WEBRTC_MEDIA_STREAM_DEVICE_ENUMERATOR_H_ |
| #define COMPONENTS_WEBRTC_MEDIA_STREAM_DEVICE_ENUMERATOR_H_ |
| |
| #include <string> |
| |
| #include "third_party/blink/public/common/mediastream/media_stream_request.h" |
| #include "third_party/blink/public/mojom/mediastream/media_stream.mojom-shared.h" |
| |
| namespace content { |
| class BrowserContext; |
| } |
| |
| namespace webrtc { |
| |
| // Enumerates system devices for MediaStreamDevicesController. |
| class MediaStreamDeviceEnumerator { |
| public: |
| // Helper to get the default devices which can be used by the media request. |
| // Uses the first available devices if the default devices are not available. |
| // If the return list is empty, it means there is no available device on the |
| // OS. |
| virtual const blink::MediaStreamDevices& GetAudioCaptureDevices() const = 0; |
| virtual const blink::MediaStreamDevices& GetVideoCaptureDevices() const = 0; |
| |
| // Helper to get the default devices which can be used by the media request. |
| // Uses the first available devices if the default devices are not available. |
| // If the return list is empty, it means there is no available device on the |
| // OS. |
| virtual void GetDefaultDevicesForBrowserContext( |
| content::BrowserContext* context, |
| bool audio, |
| bool video, |
| blink::MediaStreamDevices* devices) = 0; |
| |
| // Helpers for picking particular requested devices, identified by raw id. |
| // If the device requested is not available it will return nullptr. |
| virtual const blink::MediaStreamDevice* GetRequestedAudioDevice( |
| const std::string& requested_audio_device_id) = 0; |
| virtual const blink::MediaStreamDevice* GetRequestedVideoDevice( |
| const std::string& requested_video_device_id) = 0; |
| |
| protected: |
| virtual ~MediaStreamDeviceEnumerator() = default; |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // COMPONENTS_WEBRTC_MEDIA_STREAM_DEVICE_ENUMERATOR_H_ |