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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | |
5 // The video renderer implementation to be use by the media pipeline. It lives | |
6 // inside video renderer thread and also WebKit's main thread. We need to be | |
7 // extra careful about members shared by two different threads, especially | |
8 // video frame buffers. | |
9 | 4 |
10 #ifndef WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ | 5 #ifndef WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ |
11 #define WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ | 6 #define WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ |
12 | 7 |
13 #include "media/base/buffers.h" | 8 #include "media/base/buffers.h" |
14 #include "media/base/filters.h" | 9 #include "media/base/filters.h" |
15 #include "media/filters/video_renderer_base.h" | 10 #include "media/filters/video_renderer_base.h" |
16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayer.h" | 11 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayer.h" |
17 #include "ui/gfx/rect.h" | |
18 #include "ui/gfx/size.h" | 12 #include "ui/gfx/size.h" |
| 13 #include "third_party/skia/include/core/SkBitmap.h" |
19 #include "webkit/glue/media/web_video_renderer.h" | 14 #include "webkit/glue/media/web_video_renderer.h" |
20 #include "webkit/glue/webmediaplayer_impl.h" | |
21 | 15 |
22 namespace webkit_glue { | 16 namespace webkit_glue { |
23 | 17 |
| 18 // The video renderer implementation to be use by the media pipeline. It lives |
| 19 // inside video renderer thread and also WebKit's main thread. We need to be |
| 20 // extra careful about members shared by two different threads, especially |
| 21 // video frame buffers. |
24 class VideoRendererImpl : public WebVideoRenderer { | 22 class VideoRendererImpl : public WebVideoRenderer { |
25 public: | 23 public: |
26 explicit VideoRendererImpl(bool pts_logging); | 24 explicit VideoRendererImpl(bool pts_logging); |
27 virtual ~VideoRendererImpl(); | 25 virtual ~VideoRendererImpl(); |
28 | 26 |
29 // WebVideoRenderer implementation. | 27 // WebVideoRenderer implementation. |
30 virtual void SetWebMediaPlayerImplProxy(WebMediaPlayerImpl::Proxy* proxy); | 28 virtual void SetWebMediaPlayerProxy(WebMediaPlayerProxy* proxy) OVERRIDE; |
31 virtual void SetRect(const gfx::Rect& rect); | 29 virtual void SetRect(const gfx::Rect& rect) OVERRIDE; |
32 virtual void Paint(SkCanvas* canvas, const gfx::Rect& dest_rect); | 30 virtual void Paint(SkCanvas* canvas, const gfx::Rect& dest_rect) OVERRIDE; |
33 virtual void GetCurrentFrame(scoped_refptr<media::VideoFrame>* frame_out); | 31 virtual void GetCurrentFrame( |
34 virtual void PutCurrentFrame(scoped_refptr<media::VideoFrame> frame); | 32 scoped_refptr<media::VideoFrame>* frame_out) OVERRIDE; |
| 33 virtual void PutCurrentFrame( |
| 34 scoped_refptr<media::VideoFrame> frame) OVERRIDE; |
35 | 35 |
36 protected: | 36 protected: |
37 // Method called by VideoRendererBase during initialization. | 37 // VideoRendererBase implementation. |
38 virtual bool OnInitialize(media::VideoDecoder* decoder); | 38 virtual bool OnInitialize(media::VideoDecoder* decoder) OVERRIDE; |
39 | 39 virtual void OnStop(media::FilterCallback* callback) OVERRIDE; |
40 // Method called by the VideoRendererBase when stopping. | 40 virtual void OnFrameAvailable() OVERRIDE; |
41 virtual void OnStop(media::FilterCallback* callback); | |
42 | |
43 // Method called by the VideoRendererBase when a frame is available. | |
44 virtual void OnFrameAvailable(); | |
45 | 41 |
46 private: | 42 private: |
47 // Determine the conditions to perform fast paint. Returns true if we can do | 43 // Determine the conditions to perform fast paint. Returns true if we can do |
48 // fast paint otherwise false. | 44 // fast paint otherwise false. |
49 bool CanFastPaint(SkCanvas* canvas, const gfx::Rect& dest_rect); | 45 bool CanFastPaint(SkCanvas* canvas, const gfx::Rect& dest_rect); |
50 | 46 |
51 // Slow paint does a YUV => RGB, and scaled blit in two separate operations. | 47 // Slow paint does a YUV => RGB, and scaled blit in two separate operations. |
52 void SlowPaint(media::VideoFrame* video_frame, | 48 void SlowPaint(media::VideoFrame* video_frame, |
53 SkCanvas* canvas, | 49 SkCanvas* canvas, |
54 const gfx::Rect& dest_rect); | 50 const gfx::Rect& dest_rect); |
55 | 51 |
56 // Fast paint does YUV => RGB, scaling, blitting all in one step into the | 52 // Fast paint does YUV => RGB, scaling, blitting all in one step into the |
57 // canvas. It's not always safe and appropriate to perform fast paint. | 53 // canvas. It's not always safe and appropriate to perform fast paint. |
58 // CanFastPaint() is used to determine the conditions. | 54 // CanFastPaint() is used to determine the conditions. |
59 void FastPaint(media::VideoFrame* video_frame, | 55 void FastPaint(media::VideoFrame* video_frame, |
60 SkCanvas* canvas, | 56 SkCanvas* canvas, |
61 const gfx::Rect& dest_rect); | 57 const gfx::Rect& dest_rect); |
62 | 58 |
63 void TransformToSkIRect(const SkMatrix& matrix, const gfx::Rect& src_rect, | |
64 SkIRect* dest_rect); | |
65 | |
66 // Pointer to our parent object that is called to request repaints. | 59 // Pointer to our parent object that is called to request repaints. |
67 scoped_refptr<WebMediaPlayerImpl::Proxy> proxy_; | 60 scoped_refptr<WebMediaPlayerProxy> proxy_; |
68 | 61 |
69 // An RGB bitmap used to convert the video frames. | 62 // An RGB bitmap used to convert the video frames. |
70 SkBitmap bitmap_; | 63 SkBitmap bitmap_; |
71 | 64 |
72 // These two members are used to determine if the |bitmap_| contains | 65 // These two members are used to determine if the |bitmap_| contains |
73 // an already converted image of the current frame. IMPORTANT NOTE: The | 66 // an already converted image of the current frame. IMPORTANT NOTE: The |
74 // value of |last_converted_frame_| must only be used for comparison purposes, | 67 // value of |last_converted_frame_| must only be used for comparison purposes, |
75 // and it should be assumed that the value of the pointer is INVALID unless | 68 // and it should be assumed that the value of the pointer is INVALID unless |
76 // it matches the pointer returned from GetCurrentFrame(). Even then, just | 69 // it matches the pointer returned from GetCurrentFrame(). Even then, just |
77 // to make sure, we compare the timestamp to be sure the bits in the | 70 // to make sure, we compare the timestamp to be sure the bits in the |
78 // |current_frame_bitmap_| are valid. | 71 // |current_frame_bitmap_| are valid. |
79 media::VideoFrame* last_converted_frame_; | 72 media::VideoFrame* last_converted_frame_; |
80 base::TimeDelta last_converted_timestamp_; | 73 base::TimeDelta last_converted_timestamp_; |
81 | 74 |
82 // The size of the video. | 75 // The size of the video. |
83 gfx::Size video_size_; | 76 gfx::Size video_size_; |
84 | 77 |
85 // Whether we're logging video presentation timestamps (PTS). | 78 // Whether we're logging video presentation timestamps (PTS). |
86 bool pts_logging_; | 79 bool pts_logging_; |
87 | 80 |
88 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl); | 81 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl); |
89 }; | 82 }; |
90 | 83 |
91 } // namespace webkit_glue | 84 } // namespace webkit_glue |
92 | 85 |
93 #endif // WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ | 86 #endif // WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ |
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