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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2013 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
| 29 #error "This file requires ARC support." | |
| 30 #endif | |
| 31 | |
| 32 #import "RTCI420Frame+Internal.h" | |
| 33 #import "RTCVideoRendererAdapter.h" | |
| 34 | |
| 35 #include <memory> | |
| 36 | |
| 37 namespace webrtc { | |
| 38 | |
| 39 class RTCVideoRendererNativeAdapter | |
| 40 : public rtc::VideoSinkInterface<cricket::VideoFrame> { | |
| 41 public: | |
| 42 RTCVideoRendererNativeAdapter(RTCVideoRendererAdapter* adapter) { | |
| 43 _adapter = adapter; | |
| 44 _size = CGSizeZero; | |
| 45 } | |
| 46 | |
| 47 void OnFrame(const cricket::VideoFrame& videoFrame) override { | |
| 48 const cricket::VideoFrame* frame = videoFrame.GetCopyWithRotationApplied(); | |
| 49 CGSize currentSize = CGSizeMake(frame->width(), frame->height()); | |
| 50 if (!CGSizeEqualToSize(_size, currentSize)) { | |
| 51 _size = currentSize; | |
| 52 [_adapter.videoRenderer setSize:_size]; | |
| 53 } | |
| 54 RTCI420Frame* i420Frame = [[RTCI420Frame alloc] initWithVideoFrame:frame]; | |
| 55 [_adapter.videoRenderer renderFrame:i420Frame]; | |
| 56 } | |
| 57 | |
| 58 private: | |
| 59 __weak RTCVideoRendererAdapter* _adapter; | |
| 60 CGSize _size; | |
| 61 }; | |
| 62 } | |
| 63 | |
| 64 @implementation RTCVideoRendererAdapter { | |
| 65 id<RTCVideoRenderer> _videoRenderer; | |
| 66 std::unique_ptr<webrtc::RTCVideoRendererNativeAdapter> _adapter; | |
| 67 } | |
| 68 | |
| 69 - (instancetype)initWithVideoRenderer:(id<RTCVideoRenderer>)videoRenderer { | |
| 70 NSParameterAssert(videoRenderer); | |
| 71 if (self = [super init]) { | |
| 72 _videoRenderer = videoRenderer; | |
| 73 _adapter.reset(new webrtc::RTCVideoRendererNativeAdapter(self)); | |
| 74 } | |
| 75 return self; | |
| 76 } | |
| 77 | |
| 78 - (rtc::VideoSinkInterface<cricket::VideoFrame> *)nativeVideoRenderer { | |
| 79 return _adapter.get(); | |
| 80 } | |
| 81 | |
| 82 @end | |
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