Build dynamic iOS SDK.

webrtc/api/objc/RTCVideoRendererAdapter.mm

-/*
- *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#import "RTCVideoRendererAdapter.h"
-
-#include "webrtc/media/engine/webrtcvideoframe.h"
-
-#import "webrtc/api/objc/RTCVideoFrame+Private.h"
-#import "webrtc/api/objc/RTCVideoRendererAdapter+Private.h"
-
-namespace webrtc {
-
-class VideoRendererAdapter
-    : public rtc::VideoSinkInterface<cricket::VideoFrame> {
- public:
-  VideoRendererAdapter(RTCVideoRendererAdapter* adapter) {
-    adapter_ = adapter;
-    size_ = CGSizeZero;
-  }
-
-  void OnFrame(const cricket::VideoFrame& nativeVideoFrame) override {
-    RTCVideoFrame *videoFrame = nil;
-    // Rotation of native handles is unsupported right now. Convert to CPU
-    // I420 buffer for rotation before calling the rotation method otherwise
-    // it will hit a DCHECK.
-    if (nativeVideoFrame.rotation() != webrtc::kVideoRotation_0 &&
-        nativeVideoFrame.GetNativeHandle()) {
-      rtc::scoped_refptr<webrtc::VideoFrameBuffer> i420Buffer =
-          nativeVideoFrame.video_frame_buffer()->NativeToI420Buffer();
-      std::unique_ptr<cricket::VideoFrame> cpuFrame(
-          new cricket::WebRtcVideoFrame(i420Buffer,
-                                        nativeVideoFrame.rotation(),
-                                        nativeVideoFrame.timestamp_us()));
-      const cricket::VideoFrame *rotatedFrame =
-          cpuFrame->GetCopyWithRotationApplied();
-      videoFrame = [[RTCVideoFrame alloc] initWithNativeFrame:rotatedFrame];
-    } else {
-      const cricket::VideoFrame *rotatedFrame =
-          nativeVideoFrame.GetCopyWithRotationApplied();
-      videoFrame = [[RTCVideoFrame alloc] initWithNativeFrame:rotatedFrame];
-    }
-    CGSize current_size = CGSizeMake(videoFrame.width, videoFrame.height);
-    if (!CGSizeEqualToSize(size_, current_size)) {
-      size_ = current_size;
-      [adapter_.videoRenderer setSize:size_];
-    }
-    [adapter_.videoRenderer renderFrame:videoFrame];
-  }
-
- private:
-  __weak RTCVideoRendererAdapter *adapter_;
-  CGSize size_;
-};
-}
-
-@implementation RTCVideoRendererAdapter {
-  rtc::scoped_ptr<webrtc::VideoRendererAdapter> _adapter;
-}
-
-@synthesize videoRenderer = _videoRenderer;
-
-- (instancetype)initWithNativeRenderer:(id<RTCVideoRenderer>)videoRenderer {
-  NSParameterAssert(videoRenderer);
-  if (self = [super init]) {
-    _videoRenderer = videoRenderer;
-    _adapter.reset(new webrtc::VideoRendererAdapter(self));
-  }
-  return self;
-}
-
-- (rtc::VideoSinkInterface<cricket::VideoFrame> *)nativeVideoRenderer {
-  return _adapter.get();
-}
-
-@end