Reland of Split iOS sdk in to separate targets

webrtc/sdk/objc/Framework/Classes/corevideo_frame_buffer.h

-/*
- *  Copyright 2016 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.
- */
-
-#ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COREVIDEO_FRAME_BUFFER_H_
-#define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COREVIDEO_FRAME_BUFFER_H_
-
-#include <CoreVideo/CoreVideo.h>
-
-#include <vector>
-
-#include "webrtc/common_video/include/video_frame_buffer.h"
-
-namespace webrtc {
-
-class CoreVideoFrameBuffer : public NativeHandleBuffer {
- public:
-  explicit CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer);
-  CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer,
-                       int adapted_width,
-                       int adapted_height,
-                       int crop_width,
-                       int crop_height,
-                       int crop_x,
-                       int crop_y);
-  ~CoreVideoFrameBuffer() override;
-
-  rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override;
-  // Returns true if the internal pixel buffer needs to be cropped.
-  bool RequiresCropping() const;
-  // Crop and scales the internal pixel buffer to the output pixel buffer. The
-  // tmp buffer is used for intermediary splitting the UV channels. This
-  // function returns true if successful.
-  bool CropAndScaleTo(std::vector<uint8_t>* tmp_buffer,
-                      CVPixelBufferRef output_pixel_buffer) const;
-
- private:
-  CVPixelBufferRef pixel_buffer_;
-  // buffer_width/height is the actual pixel buffer resolution. The width/height
-  // in NativeHandleBuffer, i.e. width()/height(), is the resolution we will
-  // scale to in NativeToI420Buffer(). Cropping happens before scaling, so:
-  // buffer_width >= crop_width >= width().
-  const int buffer_width_;
-  const int buffer_height_;
-  const int crop_width_;
-  const int crop_height_;
-  const int crop_x_;
-  const int crop_y_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COREVIDEO_FRAME_BUFFER_H_