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- // 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-forward.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::mojom::StreamDevices& 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_
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