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Side by Side Diff: media/filters/skcanvas_video_renderer.h

Issue 11234071: Moved SkCanvasVideoRenderer to media/filters. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years, 2 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 4
5 #ifndef WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_ 5 #ifndef WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
6 #define WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_ 6 #define WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
7 7
8 #include "base/time.h" 8 #include "base/time.h"
9 #include "ui/gfx/rect.h" 9 #include "ui/gfx/rect.h"
10 #include "third_party/skia/include/core/SkBitmap.h" 10 #include "third_party/skia/include/core/SkBitmap.h"
11 11
12 class SkCanvas; 12 class SkCanvas;
13 13
14 namespace media { 14 namespace media {
15 class VideoFrame; 15 class VideoFrame;
16 }
17
18 namespace webkit_media {
19 16
20 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV 17 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
21 // conversion and caching of resulting RGB bitmaps. 18 // conversion and caching of resulting RGB bitmaps.
22 class SkCanvasVideoRenderer { 19 class SkCanvasVideoRenderer {
23 public: 20 public:
24 SkCanvasVideoRenderer(); 21 SkCanvasVideoRenderer();
25 ~SkCanvasVideoRenderer(); 22 ~SkCanvasVideoRenderer();
26 23
27 // Paints |video_frame| on |canvas|, scaling the result to fit dimensions 24 // Paints |video_frame| on |canvas|, scaling the result to fit dimensions
28 // specified by |dest_rect|. 25 // specified by |dest_rect|.
29 // 26 //
30 // Black will be painted on |canvas| if |video_frame| is null. 27 // Black will be painted on |canvas| if |video_frame| is null.
31 void Paint(media::VideoFrame* video_frame, 28 void Paint(media::VideoFrame* video_frame,
32 SkCanvas* canvas, 29 SkCanvas* canvas,
33 const gfx::Rect& dest_rect, 30 const gfx::RectF& dest_rect,
34 uint8_t alpha); 31 uint8_t alpha);
35 32
36 private: 33 private:
37 // An RGB bitmap and corresponding timestamp of the previously converted 34 // An RGB bitmap and corresponding timestamp of the previously converted
38 // video frame data. 35 // video frame data.
39 SkBitmap last_frame_; 36 SkBitmap last_frame_;
40 base::TimeDelta last_frame_timestamp_; 37 base::TimeDelta last_frame_timestamp_;
41 38
42 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); 39 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
43 }; 40 };
44 41
45 } // namespace webkit_media 42 } // namespace media
46 43
47 #endif // WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_ 44 #endif // WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_
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