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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_LAYERS_VIDEO_LAYER_H_
6 #define CC_LAYERS_VIDEO_LAYER_H_
7 
8 #include "base/callback.h"
9 #include "cc/base/cc_export.h"
10 #include "cc/layers/layer.h"
11 #include "media/base/video_rotation.h"
12 
13 namespace media { class VideoFrame; }
14 
15 namespace cc {
16 
17 class VideoFrameProvider;
18 class VideoLayerImpl;
19 
20 // A Layer that contains a Video element.
21 class CC_EXPORT VideoLayer : public Layer {
22  public:
23   static scoped_refptr<VideoLayer> Create(VideoFrameProvider* provider,
24                                           media::VideoRotation video_rotation);
25 
26   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
27       OVERRIDE;
28 
29   virtual bool Update(ResourceUpdateQueue* queue,
30                       const OcclusionTracker<Layer>* occlusion) OVERRIDE;
31 
32  private:
33   VideoLayer(VideoFrameProvider* provider, media::VideoRotation video_rotation);
34   virtual ~VideoLayer();
35 
36   // This pointer is only for passing to VideoLayerImpl's constructor. It should
37   // never be dereferenced by this class.
38   VideoFrameProvider* provider_;
39 
40   media::VideoRotation video_rotation_;
41 
42   DISALLOW_COPY_AND_ASSIGN(VideoLayer);
43 };
44 
45 }  // namespace cc
46 
47 #endif  // CC_LAYERS_VIDEO_LAYER_H_
48