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
|
/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_HWCONTEXT_INTERNAL_H
#define AVUTIL_HWCONTEXT_INTERNAL_H
#include <stddef.h>
#include "buffer.h"
#include "hwcontext.h"
#include "frame.h"
#include "pixfmt.h"
typedef struct HWContextType {
enum AVHWDeviceType type;
const char *name;
/**
* An array of pixel formats supported by the AVHWFramesContext instances
* Terminated by AV_PIX_FMT_NONE.
*/
const enum AVPixelFormat *pix_fmts;
/**
* size of the public hardware-specific context,
* i.e. AVHWDeviceContext.hwctx
*/
size_t device_hwctx_size;
/**
* size of the private data, i.e.
* AVHWDeviceInternal.priv
*/
size_t device_priv_size;
/**
* Size of the hardware-specific device configuration.
* (Used to query hwframe constraints.)
*/
size_t device_hwconfig_size;
/**
* size of the public frame pool hardware-specific context,
* i.e. AVHWFramesContext.hwctx
*/
size_t frames_hwctx_size;
/**
* size of the private data, i.e.
* AVHWFramesInternal.priv
*/
size_t frames_priv_size;
int (*device_create)(AVHWDeviceContext *ctx, const char *device,
AVDictionary *opts, int flags);
int (*device_init)(AVHWDeviceContext *ctx);
void (*device_uninit)(AVHWDeviceContext *ctx);
int (*frames_get_constraints)(AVHWDeviceContext *ctx,
const void *hwconfig,
AVHWFramesConstraints *constraints);
int (*frames_init)(AVHWFramesContext *ctx);
void (*frames_uninit)(AVHWFramesContext *ctx);
int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame);
int (*transfer_get_formats)(AVHWFramesContext *ctx,
enum AVHWFrameTransferDirection dir,
enum AVPixelFormat **formats);
int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src);
int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src);
} HWContextType;
struct AVHWDeviceInternal {
const HWContextType *hw_type;
void *priv;
};
struct AVHWFramesInternal {
const HWContextType *hw_type;
void *priv;
AVBufferPool *pool_internal;
};
extern const HWContextType ff_hwcontext_type_cuda;
extern const HWContextType ff_hwcontext_type_dxva2;
extern const HWContextType ff_hwcontext_type_vaapi;
extern const HWContextType ff_hwcontext_type_vdpau;
#endif /* AVUTIL_HWCONTEXT_INTERNAL_H */
|
