i010_buffer.h - mozsearch

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/*

 *  Copyright (c) 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.

*/

#ifndef API_VIDEO_I010_BUFFER_H_

#define API_VIDEO_I010_BUFFER_H_

#include <stdint.h>

#include <memory>

#include "api/scoped_refptr.h"

#include "api/video/video_frame_buffer.h"

#include "api/video/video_rotation.h"

#include "rtc_base/memory/aligned_malloc.h"

namespace webrtc {

// Plain I010 buffer in standard memory.

class I010Buffer : public I010BufferInterface {

 public:

  // Create a new buffer.

  static rtc::scoped_refptr<I010Buffer> Create(int width, int height);

  // Create a new buffer and copy the pixel data.

  static rtc::scoped_refptr<I010Buffer> Copy(const I010BufferInterface& buffer);

  // Convert and put I420 buffer into a new buffer.

  static rtc::scoped_refptr<I010Buffer> Copy(const I420BufferInterface& buffer);

  // Return a rotated copy of `src`.

  static rtc::scoped_refptr<I010Buffer> Rotate(const I010BufferInterface& src,

                                               VideoRotation rotation);

  // VideoFrameBuffer implementation.

  rtc::scoped_refptr<I420BufferInterface> ToI420() override;

  // PlanarYuv16BBuffer implementation.

  int width() const override;

  int height() const override;

  const uint16_t* DataY() const override;

  const uint16_t* DataU() const override;

  const uint16_t* DataV() const override;

  int StrideY() const override;

  int StrideU() const override;

  int StrideV() const override;

  uint16_t* MutableDataY();

  uint16_t* MutableDataU();

  uint16_t* MutableDataV();

  // Scale the cropped area of `src` to the size of `this` buffer, and

  // write the result into `this`.

  void CropAndScaleFrom(const I010BufferInterface& src,

                        int offset_x,

                        int offset_y,

                        int crop_width,

                        int crop_height);

  // Scale all of `src` to the size of `this` buffer, with no cropping.

  void ScaleFrom(const I010BufferInterface& src);

 protected:

  I010Buffer(int width, int height, int stride_y, int stride_u, int stride_v);

  ~I010Buffer() override;

 private:

  const int width_;

  const int height_;

  const int stride_y_;

  const int stride_u_;

  const int stride_v_;

  const std::unique_ptr<uint16_t, AlignedFreeDeleter> data_;

};

}  // namespace webrtc

#endif  // API_VIDEO_I010_BUFFER_H_