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media / gpu / vaapi / vaapi_dmabuf_video_frame_mapper.h [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_GPU_VAAPI_VAAPI_DMABUF_VIDEO_FRAME_MAPPER_H_
#define MEDIA_GPU_VAAPI_VAAPI_DMABUF_VIDEO_FRAME_MAPPER_H_
#include <memory>
#include "media/gpu/media_gpu_export.h"
#include "media/gpu/video_frame_mapper.h"
namespace media {
class VaapiWrapper;
// VideoFrameMapper that provides access to the memory referred by DMABuf-backed
// video frames using VA-API.
// VaapiDmaBufVideoFrameMapper creates a new VaapiPicture from the given
// VideoFrame and use the VaapiWrapper to access the memory there.
class MEDIA_GPU_EXPORT VaapiDmaBufVideoFrameMapper : public VideoFrameMapper {
public:
static std::unique_ptr<VideoFrameMapper> Create(VideoPixelFormat format);
VaapiDmaBufVideoFrameMapper(const VaapiDmaBufVideoFrameMapper&) = delete;
VaapiDmaBufVideoFrameMapper& operator=(const VaapiDmaBufVideoFrameMapper&) =
delete;
~VaapiDmaBufVideoFrameMapper() override;
// VideoFrameMapper override.
scoped_refptr<VideoFrame> MapFrame(
scoped_refptr<const FrameResource> video_frame,
int permissions) override;
private:
explicit VaapiDmaBufVideoFrameMapper(VideoPixelFormat format);
SEQUENCE_CHECKER(sequence_checker_);
// Vaapi components for mapping.
scoped_refptr<VaapiWrapper> vaapi_wrapper_
GUARDED_BY_CONTEXT(sequence_checker_);
};
} // namespace media
#endif // MEDIA_GPU_VAAPI_VAAPI_DMABUF_VIDEO_FRAME_MAPPER_H_