libavcodec/hwaccel.h

   1 /*
   2  * This file is part of Libav.
   3  *
   4  * Libav 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  * Libav 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 Libav; 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_HWACCEL_H
  20 #define AVCODEC_HWACCEL_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      */
  34     AVCodecHWConfig public;
  35     /**
  36      * If this configuration uses a hwaccel, a pointer to it.
  37      * If not, NULL.
  38      */
  39     const AVHWAccel *hwaccel;
  40 } AVCodecHWConfigInternal;
  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_CUVID(codec) \
  68     HW_CONFIG_HWACCEL(1, 1, 0, CUDA,         CUDA,         ff_ ## codec ## _cuvid_hwaccel)
  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_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_D3D11VA(codec) \
  78     HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD,  NONE,         ff_ ## codec ## _d3d11va_hwaccel)
  79
  80 #endif /* AVCODEC_HWACCEL_H */