FFmpeg
hwconfig.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_HWCONFIG_H
20 #define AVCODEC_HWCONFIG_H
21 
22 #include "avcodec.h"
23 #include "hwaccels.h"
24 
25 
26 #define HWACCEL_CAP_ASYNC_SAFE (1 << 0)
27 #define HWACCEL_CAP_THREAD_SAFE (1 << 1)
28 
29 
30 typedef struct AVCodecHWConfigInternal {
31  /**
32  * This is the structure which will be returned to the user by
33  * avcodec_get_hw_config().
34  */
36  /**
37  * If this configuration uses a hwaccel, a pointer to it.
38  * If not, NULL.
39  */
42 
44 
45 // These macros are used to simplify AVCodecHWConfigInternal definitions.
46 
47 #define HW_CONFIG_HWACCEL(device, frames, ad_hoc, format, device_type_, name) \
48  &(const AVCodecHWConfigInternal) { \
49  .public = { \
50  .pix_fmt = AV_PIX_FMT_ ## format, \
51  .methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
52  (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
53  (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
54  .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
55  }, \
56  .hwaccel = &name, \
57  }
58 
59 #define HW_CONFIG_INTERNAL(format) \
60  &(const AVCodecHWConfigInternal) { \
61  .public = { \
62  .pix_fmt = AV_PIX_FMT_ ## format, \
63  .methods = AV_CODEC_HW_CONFIG_METHOD_INTERNAL, \
64  .device_type = AV_HWDEVICE_TYPE_NONE, \
65  }, \
66  .hwaccel = NULL, \
67  }
68 
69 #define HWACCEL_DXVA2(codec) \
70  HW_CONFIG_HWACCEL(1, 1, 1, DXVA2_VLD, DXVA2, ff_ ## codec ## _dxva2_hwaccel)
71 #define HWACCEL_D3D11VA2(codec) \
72  HW_CONFIG_HWACCEL(1, 1, 0, D3D11, D3D11VA, ff_ ## codec ## _d3d11va2_hwaccel)
73 #define HWACCEL_NVDEC(codec) \
74  HW_CONFIG_HWACCEL(1, 1, 0, CUDA, CUDA, ff_ ## codec ## _nvdec_hwaccel)
75 #define HWACCEL_VAAPI(codec) \
76  HW_CONFIG_HWACCEL(1, 1, 1, VAAPI, VAAPI, ff_ ## codec ## _vaapi_hwaccel)
77 #define HWACCEL_VDPAU(codec) \
78  HW_CONFIG_HWACCEL(1, 1, 1, VDPAU, VDPAU, ff_ ## codec ## _vdpau_hwaccel)
79 #define HWACCEL_VIDEOTOOLBOX(codec) \
80  HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
81 #define HWACCEL_VULKAN(codec) \
82  HW_CONFIG_HWACCEL(1, 1, 1, VULKAN, VULKAN, ff_ ## codec ## _vulkan_hwaccel)
83 #define HWACCEL_D3D11VA(codec) \
84  HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD, NONE, ff_ ## codec ## _d3d11va_hwaccel)
85 
86 #define HW_CONFIG_ENCODER(device, frames, ad_hoc, format, device_type_) \
87  &(const AVCodecHWConfigInternal) { \
88  .public = { \
89  .pix_fmt = AV_PIX_FMT_ ## format, \
90  .methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
91  (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
92  (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
93  .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
94  }, \
95  .hwaccel = NULL, \
96  }
97 
98 #define HW_CONFIG_ENCODER_DEVICE(format, device_type_) \
99  HW_CONFIG_ENCODER(1, 0, 0, format, device_type_)
100 
101 #define HW_CONFIG_ENCODER_FRAMES(format, device_type_) \
102  HW_CONFIG_ENCODER(0, 1, 0, format, device_type_)
103 
104 #endif /* AVCODEC_HWCONFIG_H */
hwaccels.h
AVHWAccel
Definition: avcodec.h:2111
ff_hwaccel_uninit
void ff_hwaccel_uninit(AVCodecContext *avctx)
Definition: decode.c:1157
AVCodecHWConfigInternal
Definition: hwconfig.h:30
avcodec.h
AVCodecContext
main external API structure.
Definition: avcodec.h:435
AVCodecHWConfigInternal::hwaccel
const AVHWAccel * hwaccel
If this configuration uses a hwaccel, a pointer to it.
Definition: hwconfig.h:40
AVCodecHWConfig
Definition: codec.h:341