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Side by Side Diff: webkit/glue/media/video_renderer_impl.h

Issue 7493030: Split WebMediaPlayerImpl::Proxy into its own class. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src
Patch Set: rebase Created 9 years, 5 months ago
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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 "skia/ext/platform_canvas.h" 11 #include "skia/ext/platform_canvas.h"
17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayer.h" 12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayer.h"
18 #include "ui/gfx/rect.h" 13 #include "ui/gfx/rect.h"
19 #include "ui/gfx/size.h" 14 #include "ui/gfx/size.h"
20 #include "webkit/glue/media/web_video_renderer.h" 15 #include "webkit/glue/media/web_video_renderer.h"
21 #include "webkit/glue/webmediaplayer_impl.h"
22 16
23 namespace webkit_glue { 17 namespace webkit_glue {
24 18
19 // The video renderer implementation to be use by the media pipeline. It lives
20 // inside video renderer thread and also WebKit's main thread. We need to be
21 // extra careful about members shared by two different threads, especially
22 // video frame buffers.
25 class VideoRendererImpl : public WebVideoRenderer { 23 class VideoRendererImpl : public WebVideoRenderer {
26 public: 24 public:
27 explicit VideoRendererImpl(bool pts_logging); 25 explicit VideoRendererImpl(bool pts_logging);
28 virtual ~VideoRendererImpl(); 26 virtual ~VideoRendererImpl();
29 27
30 // WebVideoRenderer implementation. 28 // WebVideoRenderer implementation.
31 virtual void SetWebMediaPlayerImplProxy(WebMediaPlayerImpl::Proxy* proxy); 29 virtual void SetWebMediaPlayerProxy(WebMediaPlayerProxy* proxy) OVERRIDE;
32 virtual void SetRect(const gfx::Rect& rect); 30 virtual void SetRect(const gfx::Rect& rect) OVERRIDE;
33 virtual void Paint(SkCanvas* canvas, const gfx::Rect& dest_rect); 31 virtual void Paint(SkCanvas* canvas, const gfx::Rect& dest_rect) OVERRIDE;
34 virtual void GetCurrentFrame(scoped_refptr<media::VideoFrame>* frame_out); 32 virtual void GetCurrentFrame(
35 virtual void PutCurrentFrame(scoped_refptr<media::VideoFrame> frame); 33 scoped_refptr<media::VideoFrame>* frame_out) OVERRIDE;
34 virtual void PutCurrentFrame(
35 scoped_refptr<media::VideoFrame> frame) OVERRIDE;
36 36
37 protected: 37 protected:
38 // Method called by VideoRendererBase during initialization. 38 // VideoRendererBase implementation.
39 virtual bool OnInitialize(media::VideoDecoder* decoder); 39 virtual bool OnInitialize(media::VideoDecoder* decoder) OVERRIDE;
40 40 virtual void OnStop(media::FilterCallback* callback) OVERRIDE;
41 // Method called by the VideoRendererBase when stopping. 41 virtual void OnFrameAvailable() OVERRIDE;
42 virtual void OnStop(media::FilterCallback* callback);
43
44 // Method called by the VideoRendererBase when a frame is available.
45 virtual void OnFrameAvailable();
46 42
47 private: 43 private:
48 // Determine the conditions to perform fast paint. Returns true if we can do 44 // Determine the conditions to perform fast paint. Returns true if we can do
49 // fast paint otherwise false. 45 // fast paint otherwise false.
50 bool CanFastPaint(SkCanvas* canvas, const gfx::Rect& dest_rect); 46 bool CanFastPaint(SkCanvas* canvas, const gfx::Rect& dest_rect);
51 47
52 // Slow paint does a YUV => RGB, and scaled blit in two separate operations. 48 // Slow paint does a YUV => RGB, and scaled blit in two separate operations.
53 void SlowPaint(media::VideoFrame* video_frame, 49 void SlowPaint(media::VideoFrame* video_frame,
54 SkCanvas* canvas, 50 SkCanvas* canvas,
55 const gfx::Rect& dest_rect); 51 const gfx::Rect& dest_rect);
56 52
57 // Fast paint does YUV => RGB, scaling, blitting all in one step into the 53 // Fast paint does YUV => RGB, scaling, blitting all in one step into the
58 // canvas. It's not always safe and appropriate to perform fast paint. 54 // canvas. It's not always safe and appropriate to perform fast paint.
59 // CanFastPaint() is used to determine the conditions. 55 // CanFastPaint() is used to determine the conditions.
60 void FastPaint(media::VideoFrame* video_frame, 56 void FastPaint(media::VideoFrame* video_frame,
61 SkCanvas* canvas, 57 SkCanvas* canvas,
62 const gfx::Rect& dest_rect); 58 const gfx::Rect& dest_rect);
63 59
64 void TransformToSkIRect(const SkMatrix& matrix, const gfx::Rect& src_rect, 60 void TransformToSkIRect(const SkMatrix& matrix, const gfx::Rect& src_rect,
65 SkIRect* dest_rect); 61 SkIRect* dest_rect);
66 62
67 // Pointer to our parent object that is called to request repaints. 63 // Pointer to our parent object that is called to request repaints.
68 scoped_refptr<WebMediaPlayerImpl::Proxy> proxy_; 64 scoped_refptr<WebMediaPlayerProxy> proxy_;
69 65
70 // An RGB bitmap used to convert the video frames. 66 // An RGB bitmap used to convert the video frames.
71 SkBitmap bitmap_; 67 SkBitmap bitmap_;
72 68
73 // These two members are used to determine if the |bitmap_| contains 69 // These two members are used to determine if the |bitmap_| contains
74 // an already converted image of the current frame. IMPORTANT NOTE: The 70 // an already converted image of the current frame. IMPORTANT NOTE: The
75 // value of |last_converted_frame_| must only be used for comparison purposes, 71 // value of |last_converted_frame_| must only be used for comparison purposes,
76 // and it should be assumed that the value of the pointer is INVALID unless 72 // and it should be assumed that the value of the pointer is INVALID unless
77 // it matches the pointer returned from GetCurrentFrame(). Even then, just 73 // it matches the pointer returned from GetCurrentFrame(). Even then, just
78 // to make sure, we compare the timestamp to be sure the bits in the 74 // to make sure, we compare the timestamp to be sure the bits in the
79 // |current_frame_bitmap_| are valid. 75 // |current_frame_bitmap_| are valid.
80 media::VideoFrame* last_converted_frame_; 76 media::VideoFrame* last_converted_frame_;
81 base::TimeDelta last_converted_timestamp_; 77 base::TimeDelta last_converted_timestamp_;
82 78
83 // The size of the video. 79 // The size of the video.
84 gfx::Size video_size_; 80 gfx::Size video_size_;
85 81
86 // Whether we're logging video presentation timestamps (PTS). 82 // Whether we're logging video presentation timestamps (PTS).
87 bool pts_logging_; 83 bool pts_logging_;
88 84
89 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl); 85 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl);
90 }; 86 };
91 87
92 } // namespace webkit_glue 88 } // namespace webkit_glue
93 89
94 #endif // WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_ 90 #endif // WEBKIT_GLUE_MEDIA_VIDEO_RENDERER_IMPL_H_
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