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| 1 /* | |
| 2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_API_ANDROIDVIDEOCAPTURER_H_ | |
| 12 #define WEBRTC_API_ANDROIDVIDEOCAPTURER_H_ | |
| 13 | |
| 14 #include <string> | |
| 15 #include <vector> | |
| 16 | |
| 17 #include "webrtc/base/thread_checker.h" | |
| 18 #include "webrtc/common_video/include/video_frame_buffer.h" | |
| 19 #include "webrtc/media/base/videocapturer.h" | |
| 20 | |
| 21 namespace webrtc { | |
| 22 | |
| 23 class AndroidVideoCapturer; | |
| 24 | |
| 25 class AndroidVideoCapturerDelegate : public rtc::RefCountInterface { | |
| 26 public: | |
| 27 virtual ~AndroidVideoCapturerDelegate() {} | |
| 28 // Start capturing. The implementation of the delegate must call | |
| 29 // AndroidVideoCapturer::OnCapturerStarted with the result of this request. | |
| 30 virtual void Start(int width, int height, int framerate, | |
| 31 AndroidVideoCapturer* capturer) = 0; | |
| 32 | |
| 33 // Stops capturing. | |
| 34 // The delegate may not call into AndroidVideoCapturer after this call. | |
| 35 virtual void Stop() = 0; | |
| 36 | |
| 37 virtual std::vector<cricket::VideoFormat> GetSupportedFormats() = 0; | |
| 38 }; | |
| 39 | |
| 40 // Android implementation of cricket::VideoCapturer for use with WebRtc | |
| 41 // PeerConnection. | |
| 42 class AndroidVideoCapturer : public cricket::VideoCapturer { | |
| 43 public: | |
| 44 explicit AndroidVideoCapturer( | |
| 45 const rtc::scoped_refptr<AndroidVideoCapturerDelegate>& delegate); | |
| 46 virtual ~AndroidVideoCapturer(); | |
| 47 | |
| 48 // Called from JNI when the capturer has been started. | |
| 49 void OnCapturerStarted(bool success); | |
| 50 | |
| 51 // Called from JNI to request a new video format. | |
| 52 void OnOutputFormatRequest(int width, int height, int fps); | |
| 53 | |
| 54 AndroidVideoCapturerDelegate* delegate() { return delegate_.get(); } | |
| 55 | |
| 56 // cricket::VideoCapturer implementation. | |
| 57 bool GetBestCaptureFormat(const cricket::VideoFormat& desired, | |
| 58 cricket::VideoFormat* best_format) override; | |
| 59 | |
| 60 // Expose these protected methods as public, to be used by the | |
| 61 // AndroidVideoCapturerJni. | |
| 62 using VideoCapturer::AdaptFrame; | |
| 63 using VideoCapturer::OnFrame; | |
| 64 | |
| 65 private: | |
| 66 // cricket::VideoCapturer implementation. | |
| 67 // Video frames will be delivered using | |
| 68 // cricket::VideoCapturer::SignalFrameCaptured on the thread that calls Start. | |
| 69 cricket::CaptureState Start( | |
| 70 const cricket::VideoFormat& capture_format) override; | |
| 71 void Stop() override; | |
| 72 bool IsRunning() override; | |
| 73 bool IsScreencast() const override { return false; } | |
| 74 bool GetPreferredFourccs(std::vector<uint32_t>* fourccs) override; | |
| 75 | |
| 76 bool running_; | |
| 77 rtc::scoped_refptr<AndroidVideoCapturerDelegate> delegate_; | |
| 78 | |
| 79 rtc::ThreadChecker thread_checker_; | |
| 80 }; | |
| 81 | |
| 82 } // namespace webrtc | |
| 83 | |
| 84 #endif // WEBRTC_API_ANDROIDVIDEOCAPTURER_H_ | |
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