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// Copyright (c) 2012 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 WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
#define WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
#include "base/time.h"
#include "ui/gfx/rect.h"
#include "third_party/skia/include/core/SkBitmap.h"
class SkCanvas;
namespace media {
class VideoFrame;
}
namespace webkit_media {
// Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
// conversion and caching of resulting RGB bitmaps.
class SkCanvasVideoRenderer {
public:
SkCanvasVideoRenderer();
~SkCanvasVideoRenderer();
// Paints |video_frame| on |canvas|, scaling the result to fit dimensions
// specified by |dest_rect|.
//
// Black will be painted on |canvas| if |video_frame| is null.
void Paint(media::VideoFrame* video_frame,
SkCanvas* canvas,
const gfx::Rect& dest_rect);
private:
// An RGB bitmap and corresponding timestamp of the previously converted
// video frame data.
SkBitmap last_frame_;
base::TimeDelta last_frame_timestamp_;
DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
};
} // namespace webkit_media
#endif // WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
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