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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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