cc/video_layer.h

   1 // Copyright 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_VIDEO_LAYER_H_
   6 #define CC_VIDEO_LAYER_H_
   7
   8 #include "base/callback.h"
   9 #include "cc/cc_export.h"
  10 #include "cc/layer.h"
  11
  12 namespace WebKit {
  13 class WebVideoFrame;
  14 class WebVideoFrameProvider;
  15 }
  16
  17 namespace media {
  18 class VideoFrame;
  19 }
  20
  21 namespace cc {
  22
  23 class VideoLayerImpl;
  24
  25 // A Layer that contains a Video element.
  26 class CC_EXPORT VideoLayer : public Layer {
  27 public:
  28     typedef base::Callback<media::VideoFrame* (WebKit::WebVideoFrame*)> FrameUnwrapper;
  29
  30     static scoped_refptr<VideoLayer> create(WebKit::WebVideoFrameProvider*,
  31                                             const FrameUnwrapper&);
  32
  33     virtual scoped_ptr<LayerImpl> createLayerImpl() OVERRIDE;
  34
  35 private:
  36     VideoLayer(WebKit::WebVideoFrameProvider*, const FrameUnwrapper&);
  37     virtual ~VideoLayer();
  38
  39     // This pointer is only for passing to VideoLayerImpl's constructor. It should never be dereferenced by this class.
  40     WebKit::WebVideoFrameProvider* m_provider;
  41     FrameUnwrapper m_unwrapper;
  42 };
  43
  44 }  // namespace cc
  45
  46 #endif  // CC_VIDEO_LAYER_H_