cc/layers/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_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   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
  27
  28   bool Update(ResourceUpdateQueue* queue,
  29               const OcclusionTracker<Layer>* occlusion) override;
  30
  31  private:
  32   VideoLayer(VideoFrameProvider* provider, media::VideoRotation video_rotation);
  33   ~VideoLayer() override;
  34
  35   // This pointer is only for passing to VideoLayerImpl's constructor. It should
  36   // never be dereferenced by this class.
  37   VideoFrameProvider* provider_;
  38
  39   media::VideoRotation video_rotation_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(VideoLayer);
  42 };
  43
  44 }  // namespace cc
  45
  46 #endif  // CC_LAYERS_VIDEO_LAYER_H_