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Side by Side Diff: media/base/video_frame.h

Issue 8897022: Revert 113895 - <video> decode in hardware! (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 9 years 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 4
5 #ifndef MEDIA_BASE_VIDEO_FRAME_H_ 5 #ifndef MEDIA_BASE_VIDEO_FRAME_H_
6 #define MEDIA_BASE_VIDEO_FRAME_H_ 6 #define MEDIA_BASE_VIDEO_FRAME_H_
7 7
8 #include "base/callback.h"
9 #include "media/base/buffers.h" 8 #include "media/base/buffers.h"
10 9
11 namespace media { 10 namespace media {
12 11
13 class MEDIA_EXPORT VideoFrame : public StreamSample { 12 class MEDIA_EXPORT VideoFrame : public StreamSample {
14 public: 13 public:
15 static const size_t kMaxPlanes = 3; 14 static const size_t kMaxPlanes = 3;
16 15
17 static const size_t kNumRGBPlanes = 1; 16 static const size_t kNumRGBPlanes = 1;
18 static const size_t kRGBPlane = 0; 17 static const size_t kRGBPlane = 0;
19 18
20 static const size_t kNumYUVPlanes = 3; 19 static const size_t kNumYUVPlanes = 3;
21 static const size_t kNumNV12Planes = 2; 20 static const size_t kNumNV12Planes = 2;
22 static const size_t kYPlane = 0; 21 static const size_t kYPlane = 0;
23 static const size_t kUPlane = 1; 22 static const size_t kUPlane = 1;
24 static const size_t kVPlane = 2; 23 static const size_t kVPlane = 2;
25 24
26 // Surface formats roughly based on FOURCC labels, see: 25 // Surface formats roughly based on FOURCC labels, see:
27 // http://www.fourcc.org/rgb.php 26 // http://www.fourcc.org/rgb.php
28 // http://www.fourcc.org/yuv.php 27 // http://www.fourcc.org/yuv.php
29 // Keep in sync with WebKit::WebVideoFrame!
30 enum Format { 28 enum Format {
31 INVALID, // Invalid format value. Used for error reporting. 29 INVALID, // Invalid format value. Used for error reporting.
32 RGB555, // 16bpp RGB packed 5:5:5 30 RGB555, // 16bpp RGB packed 5:5:5
33 RGB565, // 16bpp RGB packed 5:6:5 31 RGB565, // 16bpp RGB packed 5:6:5
34 RGB24, // 24bpp RGB packed 8:8:8 32 RGB24, // 24bpp RGB packed 8:8:8
35 RGB32, // 32bpp RGB packed with extra byte 8:8:8 33 RGB32, // 32bpp RGB packed with extra byte 8:8:8
36 RGBA, // 32bpp RGBA packed 8:8:8:8 34 RGBA, // 32bpp RGBA packed 8:8:8:8
37 YV12, // 12bpp YVU planar 1x1 Y, 2x2 VU samples 35 YV12, // 12bpp YVU planar 1x1 Y, 2x2 VU samples
38 YV16, // 16bpp YVU planar 1x1 Y, 2x1 VU samples 36 YV16, // 16bpp YVU planar 1x1 Y, 2x1 VU samples
39 NV12, // 12bpp YVU planar 1x1 Y, 2x2 UV interleaving samples 37 NV12, // 12bpp YVU planar 1x1 Y, 2x2 UV interleaving samples
40 EMPTY, // An empty frame. 38 EMPTY, // An empty frame.
41 ASCII, // A frame with ASCII content. For testing only. 39 ASCII, // A frame with ASCII content. For testing only.
42 I420, // 12bpp YVU planar 1x1 Y, 2x2 UV samples. 40 I420, // 12bpp YVU planar 1x1 Y, 2x2 UV samples.
43 NATIVE_TEXTURE, // Opaque native texture. Pixel-format agnostic.
44 }; 41 };
45 42
46 // Creates a new frame in system memory with given parameters. Buffers for 43 // Creates a new frame in system memory with given parameters. Buffers for
47 // the frame are allocated but not initialized. 44 // the frame are allocated but not initialized.
48 static scoped_refptr<VideoFrame> CreateFrame( 45 static scoped_refptr<VideoFrame> CreateFrame(
49 Format format, 46 Format format,
50 size_t width, 47 size_t width,
51 size_t height, 48 size_t height,
52 base::TimeDelta timestamp, 49 base::TimeDelta timestamp,
53 base::TimeDelta duration); 50 base::TimeDelta duration);
54 51
55 // Wraps a native texture of the given parameters with a VideoFrame. When the
56 // frame is destroyed |no_longer_needed.Run()| will be called.
57 static scoped_refptr<VideoFrame> WrapNativeTexture(
58 uint32 texture_id,
59 size_t width,
60 size_t height,
61 base::TimeDelta timestamp,
62 base::TimeDelta duration,
63 const base::Closure& no_longer_needed);
64
65 // Creates a frame with format equals to VideoFrame::EMPTY, width, height 52 // Creates a frame with format equals to VideoFrame::EMPTY, width, height
66 // timestamp and duration are all 0. 53 // timestamp and duration are all 0.
67 static scoped_refptr<VideoFrame> CreateEmptyFrame(); 54 static scoped_refptr<VideoFrame> CreateEmptyFrame();
68 55
69 // Allocates YV12 frame based on |width| and |height|, and sets its data to 56 // Allocates YV12 frame based on |width| and |height|, and sets its data to
70 // the YUV equivalent of RGB(0,0,0). 57 // the YUV equivalent of RGB(0,0,0).
71 static scoped_refptr<VideoFrame> CreateBlackFrame(int width, int height); 58 static scoped_refptr<VideoFrame> CreateBlackFrame(int width, int height);
72 59
73 Format format() const { return format_; } 60 Format format() const { return format_; }
74 61
75 size_t width() const { return width_; } 62 size_t width() const { return width_; }
76 63
77 size_t height() const { return height_; } 64 size_t height() const { return height_; }
78 65
79 size_t planes() const { return planes_; } 66 size_t planes() const { return planes_; }
80 67
81 int stride(size_t plane) const; 68 int stride(size_t plane) const;
82 69
83 // Returns the number of bytes per row and number of rows for a given plane. 70 // Returns the number of bytes per row and number of rows for a given plane.
84 // 71 //
85 // As opposed to stride(), row_bytes() refers to the bytes representing 72 // As opposed to stride(), row_bytes() refers to the bytes representing
86 // visible pixels. 73 // visible pixels.
87 int row_bytes(size_t plane) const; 74 int row_bytes(size_t plane) const;
88 int rows(size_t plane) const; 75 int rows(size_t plane) const;
89 76
90 // Returns pointer to the buffer for a given plane. The memory is owned by 77 // Returns pointer to the buffer for a given plane. The memory is owned by
91 // VideoFrame object and must not be freed by the caller. 78 // VideoFrame object and must not be freed by the caller.
92 uint8* data(size_t plane) const; 79 uint8* data(size_t plane) const;
93 80
94 // Returns the ID of the native texture wrapped by this frame. Only valid to
95 // call if this is a NATIVE_TEXTURE frame.
96 uint32 texture_id() const;
97
98 // StreamSample interface. 81 // StreamSample interface.
99 virtual bool IsEndOfStream() const OVERRIDE; 82 virtual bool IsEndOfStream() const OVERRIDE;
100 83
101 private: 84 protected:
102 // Clients must use the static CreateFrame() method to create a new frame. 85 // Clients must use the static CreateFrame() method to create a new frame.
103 VideoFrame(Format format, 86 VideoFrame(Format format,
104 size_t video_width, 87 size_t video_width,
105 size_t video_height, 88 size_t video_height);
106 base::TimeDelta timestamp,
107 base::TimeDelta duration);
108 89
109 virtual ~VideoFrame(); 90 virtual ~VideoFrame();
110 91
111 // Used internally by CreateFrame(). 92 // Used internally by CreateFrame().
112 void AllocateRGB(size_t bytes_per_pixel); 93 void AllocateRGB(size_t bytes_per_pixel);
113 void AllocateYUV(); 94 void AllocateYUV();
114 95
115 // Used to DCHECK() plane parameters. 96 // Used to DCHECK() plane parameters.
116 bool IsValidPlane(size_t plane) const; 97 bool IsValidPlane(size_t plane) const;
117 98
118 // Frame format. 99 // Frame format.
119 Format format_; 100 Format format_;
120 101
121 // Width and height of surface. 102 // Width and height of surface.
122 size_t width_; 103 size_t width_;
123 size_t height_; 104 size_t height_;
124 105
125 // Number of planes, typically 1 for packed RGB formats, 3 for planar 106 // Number of planes, typically 1 for packed RGB formats and 3 for planar
126 // YUV formats, and 0 for native textures. 107 // YUV formats.
127 size_t planes_; 108 size_t planes_;
128 109
129 // Array of strides for each plane, typically greater or equal to the width 110 // Array of strides for each plane, typically greater or equal to the width
130 // of the surface divided by the horizontal sampling period. Note that 111 // of the surface divided by the horizontal sampling period. Note that
131 // strides can be negative. 112 // strides can be negative.
132 int32 strides_[kMaxPlanes]; 113 int32 strides_[kMaxPlanes];
133 114
134 // Array of data pointers to each plane. 115 // Array of data pointers to each plane.
135 uint8* data_[kMaxPlanes]; 116 uint8* data_[kMaxPlanes];
136 117
137 // Native texture ID, if this is a NATIVE_TEXTURE frame. 118 DISALLOW_COPY_AND_ASSIGN(VideoFrame);
138 uint32 texture_id_;
139 base::Closure texture_no_longer_needed_;
140
141 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoFrame);
142 }; 119 };
143 120
144 } // namespace media 121 } // namespace media
145 122
146 #endif // MEDIA_BASE_VIDEO_FRAME_H_ 123 #endif // MEDIA_BASE_VIDEO_FRAME_H_
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