Add RTCVideoFrame init function from CVPixelBufferRef

webrtc/sdk/objc/Framework/Classes/RTCVideoFrame.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 "RTCVideoFrame+Private.h"
 
+#include "webrtc/common_video/include/corevideo_frame_buffer.h"
+
 @implementation RTCVideoFrame {
   rtc::scoped_refptr<webrtc::VideoFrameBuffer> _videoBuffer;
   int _rotation;
   int64_t _timeStampNs;
 }
 
 - (int)width {
   return _videoBuffer->width();
 }
 
@@ skipping 39 matching lines @@
 
 - (RTCVideoFrame*)convertToI420 {
   if (!_videoBuffer->native_handle())
     return self;
   return [[RTCVideoFrame alloc]
       initWithVideoBuffer:_videoBuffer->NativeToI420Buffer()
                  rotation:_rotation
               timeStampNs:_timeStampNs];
 }
 
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+                           rotation:(int)rotation
+                        timeStampNs:(int64_t)timeStampNs {
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> videoBuffer(
+      new rtc::RefCountedObject<webrtc::CoreVideoFrameBuffer>(pixelBuffer));
+  return [self initWithVideoBuffer:videoBuffer
+                          rotation:rotation
+                       timeStampNs:timeStampNs];
+}
+
+- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
+                        scaledWidth:(int)scaledWidth
+                       scaledHeight:(int)scaledHeight
+                          cropWidth:(int)cropWidth
+                         cropHeight:(int)cropHeight
+                              cropX:(int)cropX
+                              cropY:(int)cropY
+                           rotation:(int)rotation
+                        timeStampNs:(int64_t)timeStampNs {
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> videoBuffer(
+      new rtc::RefCountedObject<webrtc::CoreVideoFrameBuffer>(
+          pixelBuffer,
+          scaledWidth, scaledHeight,
+          cropWidth, cropHeight,
+          cropX, cropY));
+  return [self initWithVideoBuffer:videoBuffer
+                          rotation:rotation
+                       timeStampNs:timeStampNs];
+}
+
 #pragma mark - Private
 
 - (instancetype)initWithVideoBuffer:
                     (rtc::scoped_refptr<webrtc::VideoFrameBuffer>)videoBuffer
                            rotation:(int)rotation
                         timeStampNs:(int64_t)timeStampNs {
   if (self = [super init]) {
     _videoBuffer = videoBuffer;
     _rotation = rotation;
     _timeStampNs = timeStampNs;
   }
   return self;
 }
 
 @end