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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 #import "RTCVideoRendererAdapter+Private.h" | |
| 12 | |
| 13 #import "RTCVideoFrame+Private.h" | |
| 14 | |
| 15 #include <memory> | |
| 16 | |
| 17 namespace webrtc { | |
| 18 | |
| 19 class VideoRendererAdapter | |
| 20 : public rtc::VideoSinkInterface<webrtc::VideoFrame> { | |
| 21 public: | |
| 22 VideoRendererAdapter(RTCVideoRendererAdapter* adapter) { | |
| 23 adapter_ = adapter; | |
| 24 size_ = CGSizeZero; | |
| 25 } | |
| 26 | |
| 27 void OnFrame(const webrtc::VideoFrame& nativeVideoFrame) override { | |
| 28 RTCVideoFrame* videoFrame = [[RTCVideoFrame alloc] | |
| 29 initWithVideoBuffer:nativeVideoFrame.video_frame_buffer() | |
| 30 rotation:static_cast<RTCVideoRotation>( | |
| 31 nativeVideoFrame.rotation()) | |
| 32 timeStampNs:nativeVideoFrame.timestamp_us() * | |
| 33 rtc::kNumNanosecsPerMicrosec]; | |
| 34 CGSize current_size = (videoFrame.rotation % 180 == 0) | |
| 35 ? CGSizeMake(videoFrame.width, videoFrame.height) | |
| 36 : CGSizeMake(videoFrame.height, videoFrame.width); | |
| 37 | |
| 38 if (!CGSizeEqualToSize(size_, current_size)) { | |
| 39 size_ = current_size; | |
| 40 [adapter_.videoRenderer setSize:size_]; | |
| 41 } | |
| 42 [adapter_.videoRenderer renderFrame:videoFrame]; | |
| 43 } | |
| 44 | |
| 45 private: | |
| 46 __weak RTCVideoRendererAdapter *adapter_; | |
| 47 CGSize size_; | |
| 48 }; | |
| 49 } | |
| 50 | |
| 51 @implementation RTCVideoRendererAdapter { | |
| 52 std::unique_ptr<webrtc::VideoRendererAdapter> _adapter; | |
| 53 } | |
| 54 | |
| 55 @synthesize videoRenderer = _videoRenderer; | |
| 56 | |
| 57 - (instancetype)initWithNativeRenderer:(id<RTCVideoRenderer>)videoRenderer { | |
| 58 NSParameterAssert(videoRenderer); | |
| 59 if (self = [super init]) { | |
| 60 _videoRenderer = videoRenderer; | |
| 61 _adapter.reset(new webrtc::VideoRendererAdapter(self)); | |
| 62 } | |
| 63 return self; | |
| 64 } | |
| 65 | |
| 66 - (rtc::VideoSinkInterface<webrtc::VideoFrame> *)nativeVideoRenderer { | |
| 67 return _adapter.get(); | |
| 68 } | |
| 69 | |
| 70 @end | |
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