|  | /* | 
|  | *  Copyright 2021 The WebRTC project authors. All Rights Reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #ifndef API_VIDEO_TRACK_SOURCE_PROXY_FACTORY_H_ | 
|  | #define API_VIDEO_TRACK_SOURCE_PROXY_FACTORY_H_ | 
|  |  | 
|  | #include "api/media_stream_interface.h" | 
|  | #include "api/scoped_refptr.h" | 
|  | #include "rtc_base/system/rtc_export.h" | 
|  | #include "rtc_base/thread.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | // Creates a proxy source for `source` which makes sure the real | 
|  | // VideoTrackSourceInterface implementation is destroyed on the signaling thread | 
|  | // and marshals calls to `worker_thread` and `signaling_thread`. | 
|  | scoped_refptr<VideoTrackSourceInterface> RTC_EXPORT | 
|  | CreateVideoTrackSourceProxy(Thread* signaling_thread, | 
|  | Thread* worker_thread, | 
|  | VideoTrackSourceInterface* source); | 
|  |  | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // API_VIDEO_TRACK_SOURCE_PROXY_FACTORY_H_ |