| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_GPU_VIDEO_FRAME_MAPPER_H_ |
| #define MEDIA_GPU_VIDEO_FRAME_MAPPER_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "media/base/video_frame.h" |
| #include "media/base/video_types.h" |
| #include "media/gpu/media_gpu_export.h" |
| |
| namespace media { |
| |
| // The VideoFrameMapper interface allows mapping video frames into memory so |
| // that their contents can be accessed directly. |
| // VideoFrameMapper should be created by using VideoFrameMapperFactory. |
| class MEDIA_GPU_EXPORT VideoFrameMapper { |
| public: |
| virtual ~VideoFrameMapper() = default; |
| |
| // Maps data referred by |video_frame| and creates a VideoFrame whose dtor |
| // unmap the mapped memory. |
| virtual scoped_refptr<VideoFrame> Map( |
| scoped_refptr<const VideoFrame> video_frame) const = 0; |
| |
| // Returns the allowed pixel format of video frames on Map(). |
| VideoPixelFormat pixel_format() const { return format_; } |
| |
| protected: |
| explicit VideoFrameMapper(VideoPixelFormat format) : format_(format) {} |
| |
| // The allowed pixel format of video frames on Map(). |
| VideoPixelFormat format_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VideoFrameMapper); |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_GPU_VIDEO_FRAME_MAPPER_H_ |