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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 "RTCVideoRendererAdapter.h"
33#import "RTCI420Frame+Internal.h"
34
35namespace webrtc {
36
37class RTCVideoRendererNativeAdapter : public VideoRendererInterface {
38 public:
39  RTCVideoRendererNativeAdapter(RTCVideoRendererAdapter* adapter) {
40    _adapter = adapter;
41    _size = CGSizeZero;
42  }
43
44  void RenderFrame(const cricket::VideoFrame* videoFrame) override {
45    const cricket::VideoFrame* frame = videoFrame->GetCopyWithRotationApplied();
46    CGSize currentSize = CGSizeMake(frame->GetWidth(), frame->GetHeight());
47    if (!CGSizeEqualToSize(_size, currentSize)) {
48      _size = currentSize;
49      [_adapter.videoRenderer setSize:_size];
50    }
51    RTCI420Frame* i420Frame = [[RTCI420Frame alloc] initWithVideoFrame:frame];
52    [_adapter.videoRenderer renderFrame:i420Frame];
53  }
54
55 private:
56  __weak RTCVideoRendererAdapter* _adapter;
57  CGSize _size;
58};
59}
60
61@implementation RTCVideoRendererAdapter {
62  id<RTCVideoRenderer> _videoRenderer;
63  rtc::scoped_ptr<webrtc::RTCVideoRendererNativeAdapter> _adapter;
64}
65
66- (instancetype)initWithVideoRenderer:(id<RTCVideoRenderer>)videoRenderer {
67  NSParameterAssert(videoRenderer);
68  if (self = [super init]) {
69    _videoRenderer = videoRenderer;
70    _adapter.reset(new webrtc::RTCVideoRendererNativeAdapter(self));
71  }
72  return self;
73}
74
75- (webrtc::VideoRendererInterface*)nativeVideoRenderer {
76  return _adapter.get();
77}
78
79@end
80