WebM Codec SDK
vpx_image.h
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1/*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
15#ifndef VPX_VPX_VPX_IMAGE_H_
16#define VPX_VPX_VPX_IMAGE_H_
17
18#ifdef __cplusplus
19extern "C" {
20#endif
21
30#define VPX_IMAGE_ABI_VERSION (5)
31
32#define VPX_IMG_FMT_PLANAR 0x100
33#define VPX_IMG_FMT_UV_FLIP 0x200
34#define VPX_IMG_FMT_HAS_ALPHA 0x400
35#define VPX_IMG_FMT_HIGHBITDEPTH 0x800
36
52
64
74
76typedef struct vpx_image {
80
81 /* Image storage dimensions */
82 unsigned int w;
83 unsigned int h;
84 unsigned int bit_depth;
85
86 /* Image display dimensions */
87 unsigned int d_w;
88 unsigned int d_h;
89
90 /* Image intended rendering dimensions */
91 unsigned int r_w;
92 unsigned int r_h;
93
94 /* Chroma subsampling info */
95 unsigned int x_chroma_shift;
96 unsigned int y_chroma_shift;
97
98/* Image data pointers. */
99#define VPX_PLANE_PACKED 0
100#define VPX_PLANE_Y 0
101#define VPX_PLANE_U 1
102#define VPX_PLANE_V 2
103#define VPX_PLANE_ALPHA 3
104 unsigned char *planes[4];
105 int stride[4];
106
107 int bps;
108
113
114 /* The following members should be treated as private. */
115 unsigned char *img_data;
118
119 void *fb_priv;
121
123typedef struct vpx_image_rect {
124 unsigned int x;
125 unsigned int y;
126 unsigned int w;
127 unsigned int h;
129
152 unsigned int d_w, unsigned int d_h,
153 unsigned int align);
154
180 unsigned int d_h, unsigned int stride_align,
181 unsigned char *img_data);
182
197int vpx_img_set_rect(vpx_image_t *img, unsigned int x, unsigned int y,
198 unsigned int w, unsigned int h);
199
208
216
217#ifdef __cplusplus
218} // extern "C"
219#endif
220
221#endif // VPX_VPX_VPX_IMAGE_H_
Representation of a rectangle on a surface.
Definition vpx_image.h:123
unsigned int w
Definition vpx_image.h:126
unsigned int y
Definition vpx_image.h:125
unsigned int x
Definition vpx_image.h:124
unsigned int h
Definition vpx_image.h:127
Image Descriptor.
Definition vpx_image.h:76
vpx_img_fmt_t fmt
Definition vpx_image.h:77
unsigned int y_chroma_shift
Definition vpx_image.h:96
unsigned int r_w
Definition vpx_image.h:91
void * user_priv
The following member may be set by the application to associate data with this image.
Definition vpx_image.h:112
unsigned int d_h
Definition vpx_image.h:88
int self_allocd
Definition vpx_image.h:117
unsigned char * img_data
Definition vpx_image.h:115
void * fb_priv
Definition vpx_image.h:119
int img_data_owner
Definition vpx_image.h:116
int bps
Definition vpx_image.h:107
unsigned int d_w
Definition vpx_image.h:87
vpx_color_space_t cs
Definition vpx_image.h:78
unsigned int h
Definition vpx_image.h:83
unsigned int bit_depth
Definition vpx_image.h:84
unsigned char * planes[4]
Definition vpx_image.h:104
unsigned int w
Definition vpx_image.h:82
int stride[4]
Definition vpx_image.h:105
unsigned int r_h
Definition vpx_image.h:92
vpx_color_range_t range
Definition vpx_image.h:79
unsigned int x_chroma_shift
Definition vpx_image.h:95
void vpx_img_flip(vpx_image_t *img)
Flip the image vertically (top for bottom)
vpx_color_space
List of supported color spaces.
Definition vpx_image.h:54
@ VPX_CS_BT_709
Definition vpx_image.h:57
@ VPX_CS_SRGB
Definition vpx_image.h:62
@ VPX_CS_BT_601
Definition vpx_image.h:56
@ VPX_CS_BT_2020
Definition vpx_image.h:60
@ VPX_CS_SMPTE_170
Definition vpx_image.h:58
@ VPX_CS_UNKNOWN
Definition vpx_image.h:55
@ VPX_CS_SMPTE_240
Definition vpx_image.h:59
@ VPX_CS_RESERVED
Definition vpx_image.h:61
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition vpx_image.h:35
#define VPX_IMG_FMT_UV_FLIP
Definition vpx_image.h:33
vpx_img_fmt
List of supported image formats.
Definition vpx_image.h:38
@ VPX_IMG_FMT_I42216
Definition vpx_image.h:48
@ VPX_IMG_FMT_I44016
Definition vpx_image.h:50
@ VPX_IMG_FMT_NV12
Definition vpx_image.h:46
@ VPX_IMG_FMT_YV12
Definition vpx_image.h:40
@ VPX_IMG_FMT_I42016
Definition vpx_image.h:47
@ VPX_IMG_FMT_I444
Definition vpx_image.h:44
@ VPX_IMG_FMT_I440
Definition vpx_image.h:45
@ VPX_IMG_FMT_I44416
Definition vpx_image.h:49
@ VPX_IMG_FMT_I420
Definition vpx_image.h:42
@ VPX_IMG_FMT_I422
Definition vpx_image.h:43
enum vpx_color_space vpx_color_space_t
List of supported color spaces.
vpx_color_range
List of supported color range.
Definition vpx_image.h:66
@ VPX_CR_STUDIO_RANGE
Definition vpx_image.h:67
@ VPX_CR_FULL_RANGE
Definition vpx_image.h:70
int vpx_img_set_rect(vpx_image_t *img, unsigned int x, unsigned int y, unsigned int w, unsigned int h)
Set the rectangle identifying the displayed portion of the image.
#define VPX_IMG_FMT_PLANAR
Definition vpx_image.h:32
struct vpx_image_rect vpx_image_rect_t
Representation of a rectangle on a surface.
vpx_image_t * vpx_img_wrap(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int stride_align, unsigned char *img_data)
Open a descriptor, using existing storage for the underlying image.
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
struct vpx_image vpx_image_t
Image Descriptor.
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
enum vpx_color_range vpx_color_range_t
List of supported color range.