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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: Added MEDIA_EXPORT. 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 MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
6 #define WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_ 6 #define MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
7 7
8 #include "base/time.h" 8 #include "base/time.h"
9 #include "media/base/media_export.h"
9 #include "ui/gfx/rect.h" 10 #include "ui/gfx/rect.h"
10 #include "third_party/skia/include/core/SkBitmap.h" 11 #include "third_party/skia/include/core/SkBitmap.h"
11 12
12 class SkCanvas; 13 class SkCanvas;
13 14
14 namespace media { 15 namespace media {
16
15 class VideoFrame; 17 class VideoFrame;
16 }
17
18 namespace webkit_media {
19 18
20 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV 19 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
21 // conversion and caching of resulting RGB bitmaps. 20 // conversion and caching of resulting RGB bitmaps.
22 class SkCanvasVideoRenderer { 21 class MEDIA_EXPORT SkCanvasVideoRenderer {
23 public: 22 public:
24 SkCanvasVideoRenderer(); 23 SkCanvasVideoRenderer();
25 ~SkCanvasVideoRenderer(); 24 ~SkCanvasVideoRenderer();
26 25
27 // Paints |video_frame| on |canvas|, scaling the result to fit dimensions 26 // Paints |video_frame| on |canvas|, scaling the result to fit dimensions
28 // specified by |dest_rect|. 27 // specified by |dest_rect|.
29 // 28 //
30 // Black will be painted on |canvas| if |video_frame| is null. 29 // Black will be painted on |canvas| if |video_frame| is null.
31 void Paint(media::VideoFrame* video_frame, 30 void Paint(media::VideoFrame* video_frame,
32 SkCanvas* canvas, 31 SkCanvas* canvas,
33 const gfx::Rect& dest_rect, 32 const gfx::RectF& dest_rect,
34 uint8_t alpha); 33 uint8_t alpha);
35 34
36 private: 35 private:
37 // An RGB bitmap and corresponding timestamp of the previously converted 36 // An RGB bitmap and corresponding timestamp of the previously converted
38 // video frame data. 37 // video frame data.
39 SkBitmap last_frame_; 38 SkBitmap last_frame_;
40 base::TimeDelta last_frame_timestamp_; 39 base::TimeDelta last_frame_timestamp_;
41 40
42 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); 41 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
43 }; 42 };
44 43
45 } // namespace webkit_media 44 } // namespace media
46 45
47 #endif // WEBKIT_MEDIA_SKCANVAS_VIDEO_RENDERER_H_ 46 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
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