1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// clang-format off
#ifndef MEDIA_BASE_YUV_CONVERT_H_
#define MEDIA_BASE_YUV_CONVERT_H_
#include "chromium_types.h"
#include "mozilla/gfx/Types.h"
namespace mozilla {
namespace gfx {
// Type of YUV surface.
// The value of these enums matter as they are used to shift vertical indices.
enum YUVType {
YV12 = 0, // YV12 is half width and half height chroma channels.
YV16 = 1, // YV16 is half width and full height chroma channels.
YV24 = 2, // YV24 is full width and full height chroma channels.
Y8 = 3 // Y8 is monochrome: no chroma channels.
};
// Mirror means flip the image horizontally, as in looking in a mirror.
// Rotate happens after mirroring.
enum Rotate {
ROTATE_0, // Rotation off.
ROTATE_90, // Rotate clockwise.
ROTATE_180, // Rotate upside down.
ROTATE_270, // Rotate counter clockwise.
MIRROR_ROTATE_0, // Mirror horizontally.
MIRROR_ROTATE_90, // Mirror then Rotate clockwise.
MIRROR_ROTATE_180, // Mirror vertically.
MIRROR_ROTATE_270 // Transpose.
};
// Filter affects how scaling looks.
enum ScaleFilter {
FILTER_NONE = 0, // No filter (point sampled).
FILTER_BILINEAR_H = 1, // Bilinear horizontal filter.
FILTER_BILINEAR_V = 2, // Bilinear vertical filter.
FILTER_BILINEAR = 3 // Bilinear filter.
};
// Convert a frame of YUV to 32 bit ARGB.
// Pass in YV16/YV12 depending on source format
void ConvertYCbCrToRGB32(const uint8_t* yplane,
const uint8_t* uplane,
const uint8_t* vplane,
uint8_t* rgbframe,
int pic_x,
int pic_y,
int pic_width,
int pic_height,
int ystride,
int uvstride,
int rgbstride,
YUVType yuv_type,
YUVColorSpace yuv_color_space,
ColorRange color_range);
void ConvertYCbCrToRGB32_deprecated(const uint8_t* yplane,
const uint8_t* uplane,
const uint8_t* vplane,
uint8_t* rgbframe,
int pic_x,
int pic_y,
int pic_width,
int pic_height,
int ystride,
int uvstride,
int rgbstride,
YUVType yuv_type);
// Scale a frame of YUV to 32 bit ARGB.
// Supports rotation and mirroring.
void ScaleYCbCrToRGB32(const uint8_t* yplane,
const uint8_t* uplane,
const uint8_t* vplane,
uint8_t* rgbframe,
int source_width,
int source_height,
int width,
int height,
int ystride,
int uvstride,
int rgbstride,
YUVType yuv_type,
YUVColorSpace yuv_color_space,
ScaleFilter filter);
void ScaleYCbCrToRGB32_deprecated(const uint8_t* yplane,
const uint8_t* uplane,
const uint8_t* vplane,
uint8_t* rgbframe,
int source_width,
int source_height,
int width,
int height,
int ystride,
int uvstride,
int rgbstride,
YUVType yuv_type,
Rotate view_rotate,
ScaleFilter filter);
void ConvertI420AlphaToARGB32(const uint8_t* yplane,
const uint8_t* uplane,
const uint8_t* vplane,
const uint8_t* aplane,
uint8_t* argbframe,
int pic_width,
int pic_height,
int yastride,
int uvstride,
int argbstride);
} // namespace gfx
} // namespace mozilla
#endif // MEDIA_BASE_YUV_CONVERT_H_
|
