Files
platform-external-webrtc/webrtc/api/video/i420_buffer.h
nisse d71ebd70f6 Reland of Delete deprecated and transitional stuff related to video frame refactoring. (patchset #1 id:1 of https://codereview.webrtc.org/2845333002/ )
Reason for revert:
Downstream projects being updated.

For Chrome, relanding depends on cl
https://codereview.chromium.org/2855783003/

Original issue's description:
> Revert of Delete deprecated and transitional stuff related to video frame refactoring. (patchset #17 id:320001 of https://codereview.webrtc.org/2622263002/ )
>
> Reason for revert:
> Broke Chrome build, see, e.g.,
> http://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/16237
>
> Original issue's description:
> > Delete deprecated and transitional stuff related to video frame refactoring.
> >
> > BUG=webrtc:5880
> >
> > Review-Url: https://codereview.webrtc.org/2622263002
> > Cr-Commit-Position: refs/heads/master@{#17928}
> > Committed: 713a3bbcc7
>
> TBR=mflodman@webrtc.org,perkj@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5880
>
> Review-Url: https://codereview.webrtc.org/2845333002
> Cr-Commit-Position: refs/heads/master@{#17929}
> Committed: aec49d2b49

TBR=mflodman@webrtc.org,perkj@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:5880

Review-Url: https://codereview.webrtc.org/2852303002
Cr-Commit-Position: refs/heads/master@{#17974}
2017-05-02 13:13:44 +00:00

106 lines
3.5 KiB
C++

/*
* 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 WEBRTC_API_VIDEO_I420_BUFFER_H_
#define WEBRTC_API_VIDEO_I420_BUFFER_H_
#include <memory>
#include "webrtc/api/video/video_rotation.h"
#include "webrtc/api/video/video_frame_buffer.h"
#include "webrtc/system_wrappers/include/aligned_malloc.h"
namespace webrtc {
// Plain I420 buffer in standard memory.
class I420Buffer : public VideoFrameBuffer {
public:
static rtc::scoped_refptr<I420Buffer> Create(int width, int height);
static rtc::scoped_refptr<I420Buffer> Create(int width,
int height,
int stride_y,
int stride_u,
int stride_v);
// Create a new buffer and copy the pixel data.
static rtc::scoped_refptr<I420Buffer> Copy(const VideoFrameBuffer& buffer);
static rtc::scoped_refptr<I420Buffer> Copy(
int width, int height,
const uint8_t* data_y, int stride_y,
const uint8_t* data_u, int stride_u,
const uint8_t* data_v, int stride_v);
// Returns a rotated copy of |src|.
static rtc::scoped_refptr<I420Buffer> Rotate(const VideoFrameBuffer& src,
VideoRotation rotation);
// Sets the buffer to all black.
static void SetBlack(I420Buffer* buffer);
// Sets all three planes to all zeros. Used to work around for
// quirks in memory checkers
// (https://bugs.chromium.org/p/libyuv/issues/detail?id=377) and
// ffmpeg (http://crbug.com/390941).
// TODO(nisse): Deprecated. Should be deleted if/when those issues
// are resolved in a better way. Or in the mean time, use SetBlack.
void InitializeData();
int width() const override;
int height() const override;
const uint8_t* DataY() const override;
const uint8_t* DataU() const override;
const uint8_t* DataV() const override;
int StrideY() const override;
int StrideU() const override;
int StrideV() const override;
void* native_handle() const override;
rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override;
uint8_t* MutableDataY();
uint8_t* MutableDataU();
uint8_t* MutableDataV();
// Scale the cropped area of |src| to the size of |this| buffer, and
// write the result into |this|.
void CropAndScaleFrom(const VideoFrameBuffer& src,
int offset_x,
int offset_y,
int crop_width,
int crop_height);
// The common case of a center crop, when needed to adjust the
// aspect ratio without distorting the image.
void CropAndScaleFrom(const VideoFrameBuffer& src);
// Scale all of |src| to the size of |this| buffer, with no cropping.
void ScaleFrom(const VideoFrameBuffer& src);
protected:
I420Buffer(int width, int height);
I420Buffer(int width, int height, int stride_y, int stride_u, int stride_v);
~I420Buffer() override;
private:
const int width_;
const int height_;
const int stride_y_;
const int stride_u_;
const int stride_v_;
const std::unique_ptr<uint8_t, AlignedFreeDeleter> data_;
};
} // namespace webrtc
#endif // WEBRTC_API_VIDEO_I420_BUFFER_H_