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 
28 
29 typedef struct AVCodecHWConfigInternal {
30  /**
31  * This is the structure which will be returned to the user by
32  * avcodec_get_hw_config().
33  */
35  /**
36  * If this configuration uses a hwaccel, a pointer to it.
37  * If not, NULL.
38  */
41 
42 
43 // These macros are used to simplify AVCodecHWConfigInternal definitions.
44 
45 #define HW_CONFIG_HWACCEL(device, frames, ad_hoc, format, device_type_, name) \
46  &(const AVCodecHWConfigInternal) { \
47  .public = { \
48  .pix_fmt = AV_PIX_FMT_ ## format, \
49  .methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
50  (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
51  (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
52  .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
53  }, \
54  .hwaccel = &name, \
55  }
56 
57 #define HW_CONFIG_INTERNAL(format) \
58  &(const AVCodecHWConfigInternal) { \
59  .public = { \
60  .pix_fmt = AV_PIX_FMT_ ## format, \
61  .methods = AV_CODEC_HW_CONFIG_METHOD_INTERNAL, \
62  .device_type = AV_HWDEVICE_TYPE_NONE, \
63  }, \
64  .hwaccel = NULL, \
65  }
66 
67 #define HWACCEL_DXVA2(codec) \
68  HW_CONFIG_HWACCEL(1, 1, 1, DXVA2_VLD, DXVA2, ff_ ## codec ## _dxva2_hwaccel)
69 #define HWACCEL_D3D11VA2(codec) \
70  HW_CONFIG_HWACCEL(1, 1, 0, D3D11, D3D11VA, ff_ ## codec ## _d3d11va2_hwaccel)
71 #define HWACCEL_NVDEC(codec) \
72  HW_CONFIG_HWACCEL(1, 1, 0, CUDA, CUDA, ff_ ## codec ## _nvdec_hwaccel)
73 #define HWACCEL_VAAPI(codec) \
74  HW_CONFIG_HWACCEL(1, 1, 1, VAAPI, VAAPI, ff_ ## codec ## _vaapi_hwaccel)
75 #define HWACCEL_VDPAU(codec) \
76  HW_CONFIG_HWACCEL(1, 1, 1, VDPAU, VDPAU, ff_ ## codec ## _vdpau_hwaccel)
77 #define HWACCEL_VIDEOTOOLBOX(codec) \
78  HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
79 #define HWACCEL_D3D11VA(codec) \
80  HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD, NONE, ff_ ## codec ## _d3d11va_hwaccel)
81 #define HWACCEL_XVMC(codec) \
82  HW_CONFIG_HWACCEL(0, 0, 1, XVMC, NONE, ff_ ## codec ## _xvmc_hwaccel)
83 
84 #define HW_CONFIG_ENCODER(device, frames, ad_hoc, format, device_type_) \
85  &(const AVCodecHWConfigInternal) { \
86  .public = { \
87  .pix_fmt = AV_PIX_FMT_ ## format, \
88  .methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
89  (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
90  (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
91  .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
92  }, \
93  .hwaccel = NULL, \
94  }
95 
96 #define HW_CONFIG_ENCODER_DEVICE(format, device_type_) \
97  HW_CONFIG_ENCODER(1, 0, 0, format, device_type_)
98 
99 #define HW_CONFIG_ENCODER_FRAMES(format, device_type_) \
100  HW_CONFIG_ENCODER(0, 1, 0, format, device_type_)
101 
102 #endif /* AVCODEC_HWCONFIG_H */
const AVHWAccel * hwaccel
If this configuration uses a hwaccel, a pointer to it.
Definition: hwconfig.h:39
Libavcodec external API header.