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1 // Copyright 2013 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_FRAME_PROVIDER_CLIENT_IMPL_H_ | |
6 #define CC_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_ | |
7 | |
8 #include "base/memory/ref_counted.h" | |
9 #include "base/synchronization/lock.h" | |
10 #include "cc/video_frame_provider.h" | |
11 #include "ui/gfx/transform.h" | |
12 | |
13 namespace media { class VideoFrame; } | |
14 | |
15 namespace cc { | |
16 class VideoLayerImpl; | |
17 | |
18 class VideoFrameProviderClientImpl | |
19 : public VideoFrameProvider::Client, | |
20 public base::RefCounted<VideoFrameProviderClientImpl> { | |
21 public: | |
22 static scoped_refptr<VideoFrameProviderClientImpl> Create( | |
23 VideoFrameProvider* provider); | |
24 | |
25 void set_active_video_layer(VideoLayerImpl* video_layer) { | |
26 active_video_layer_ = video_layer; | |
27 } | |
28 | |
29 void Stop(); | |
30 bool Stopped() const { return !provider_; } | |
31 | |
32 media::VideoFrame* AcquireLockAndCurrentFrame(); | |
33 void PutCurrentFrame(media::VideoFrame* frame); | |
34 void ReleaseLock(); | |
35 const gfx::Transform& stream_texture_matrix() const { | |
36 return stream_texture_matrix_; | |
37 } | |
38 | |
39 // VideoFrameProvider::Client implementation. These methods are all callable | |
40 // on any thread. | |
41 virtual void StopUsingProvider() OVERRIDE; | |
42 virtual void DidReceiveFrame() OVERRIDE; | |
43 virtual void DidUpdateMatrix(const float* matrix) OVERRIDE; | |
44 | |
45 private: | |
46 explicit VideoFrameProviderClientImpl(VideoFrameProvider* provider); | |
47 friend class base::RefCounted<VideoFrameProviderClientImpl>; | |
48 virtual ~VideoFrameProviderClientImpl(); | |
49 | |
50 VideoLayerImpl* active_video_layer_; | |
51 | |
52 // Guards the destruction of provider_ and the frame that it provides | |
53 base::Lock provider_lock_; | |
54 VideoFrameProvider* provider_; | |
55 | |
56 gfx::Transform stream_texture_matrix_; | |
57 | |
58 DISALLOW_COPY_AND_ASSIGN(VideoFrameProviderClientImpl); | |
59 }; | |
60 | |
61 } // namespace cc | |
62 | |
63 #endif // CC_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_ | |
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