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// Copyright (c) 2010 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_GLUE_MEDIA_WEB_VIDEO_RENDERER_H_
#define WEBKIT_GLUE_MEDIA_WEB_VIDEO_RENDERER_H_
#include "media/base/video_frame.h"
#include "media/filters/video_renderer_base.h"
namespace webkit_glue {
// A specialized version of a VideoRenderer designed to be used inside WebKit.
class WebVideoRenderer : public media::VideoRendererBase {
public:
WebVideoRenderer() : media::VideoRendererBase() {}
virtual ~WebVideoRenderer() {}
// This method is called with the same rect as the Paint() method and could
// be used by future implementations to implement an improved color space +
// scale code on a separate thread. Since we always do the stretch on the
// same thread as the Paint method, we just ignore the call for now.
//
// Method called on the render thread.
virtual void SetRect(const gfx::Rect& rect) = 0;
// Paint the current front frame on the |canvas| stretching it to fit the
// |dest_rect|.
//
// Method called on the render thread.
virtual void Paint(skia::PlatformCanvas* canvas,
const gfx::Rect& dest_rect) = 0;
// Clients of this class (painter/compositor) should use GetCurrentFrame()
// obtain ownership of VideoFrame, it should always relinquish the ownership
// by use PutCurrentFrame(). Current frame is not guaranteed to be non-NULL.
// It expects clients to use color-fill the background if current frame
// is NULL. This could happen when before pipeline is pre-rolled or during
// pause/flush/seek.
virtual void GetCurrentFrame(scoped_refptr<media::VideoFrame>* frame_out) {}
virtual void PutCurrentFrame(scoped_refptr<media::VideoFrame> frame) {}
private:
DISALLOW_COPY_AND_ASSIGN(WebVideoRenderer);
};
} // namespace webkit_glue
#endif // WEBKIT_GLUE_MEDIA_WEB_VIDEO_RENDERER_H_
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