mirror of
https://github.com/FFmpeg/FFmpeg.git
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349ce30e4e
The implementation is based on: https://learn.microsoft.com/en-us/windows/win32/medfound/direct3d-12-video-overview With the Direct3D 12 video decoding support, we can render or process the decoded images by the pixel shaders or compute shaders directly without the extra copy overhead, which is beneficial especially if you are trying to render or post-process a 4K or 8K video. The command below is how to enable d3d12va: ffmpeg -hwaccel d3d12va -i input.mp4 output.mp4 Signed-off-by: Wu Jianhua <toqsxw@outlook.com> Signed-off-by: Tong Wu <tong1.wu@intel.com>
102 lines
4.1 KiB
C
102 lines
4.1 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_HWCONFIG_H
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#define AVCODEC_HWCONFIG_H
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#include "avcodec.h"
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#include "hwaccels.h"
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typedef struct AVCodecHWConfigInternal {
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/**
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* This is the structure which will be returned to the user by
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* avcodec_get_hw_config().
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*/
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AVCodecHWConfig public;
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/**
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* If this configuration uses a hwaccel, a pointer to it.
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* If not, NULL.
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*/
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const struct FFHWAccel *hwaccel;
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} AVCodecHWConfigInternal;
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void ff_hwaccel_uninit(AVCodecContext *avctx);
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// These macros are used to simplify AVCodecHWConfigInternal definitions.
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#define HW_CONFIG_HWACCEL(device, frames, ad_hoc, format, device_type_, name) \
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&(const AVCodecHWConfigInternal) { \
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.public = { \
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.pix_fmt = AV_PIX_FMT_ ## format, \
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.methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
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(frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
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(ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
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.device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
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}, \
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.hwaccel = &name, \
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}
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#define HW_CONFIG_INTERNAL(format) \
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&(const AVCodecHWConfigInternal) { \
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.public = { \
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.pix_fmt = AV_PIX_FMT_ ## format, \
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.methods = AV_CODEC_HW_CONFIG_METHOD_INTERNAL, \
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.device_type = AV_HWDEVICE_TYPE_NONE, \
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}, \
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.hwaccel = NULL, \
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}
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#define HWACCEL_DXVA2(codec) \
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HW_CONFIG_HWACCEL(1, 1, 1, DXVA2_VLD, DXVA2, ff_ ## codec ## _dxva2_hwaccel)
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#define HWACCEL_D3D11VA2(codec) \
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HW_CONFIG_HWACCEL(1, 1, 0, D3D11, D3D11VA, ff_ ## codec ## _d3d11va2_hwaccel)
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#define HWACCEL_NVDEC(codec) \
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HW_CONFIG_HWACCEL(1, 1, 0, CUDA, CUDA, ff_ ## codec ## _nvdec_hwaccel)
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#define HWACCEL_VAAPI(codec) \
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HW_CONFIG_HWACCEL(1, 1, 1, VAAPI, VAAPI, ff_ ## codec ## _vaapi_hwaccel)
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#define HWACCEL_VDPAU(codec) \
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HW_CONFIG_HWACCEL(1, 1, 1, VDPAU, VDPAU, ff_ ## codec ## _vdpau_hwaccel)
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#define HWACCEL_VIDEOTOOLBOX(codec) \
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HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
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#define HWACCEL_VULKAN(codec) \
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HW_CONFIG_HWACCEL(1, 1, 1, VULKAN, VULKAN, ff_ ## codec ## _vulkan_hwaccel)
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#define HWACCEL_D3D11VA(codec) \
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HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD, NONE, ff_ ## codec ## _d3d11va_hwaccel)
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#define HWACCEL_D3D12VA(codec) \
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HW_CONFIG_HWACCEL(1, 1, 0, D3D12, D3D12VA, ff_ ## codec ## _d3d12va_hwaccel)
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#define HW_CONFIG_ENCODER(device, frames, ad_hoc, format, device_type_) \
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&(const AVCodecHWConfigInternal) { \
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.public = { \
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.pix_fmt = AV_PIX_FMT_ ## format, \
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.methods = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
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(frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
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(ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC : 0), \
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.device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
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}, \
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.hwaccel = NULL, \
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}
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#define HW_CONFIG_ENCODER_DEVICE(format, device_type_) \
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HW_CONFIG_ENCODER(1, 0, 0, format, device_type_)
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#define HW_CONFIG_ENCODER_FRAMES(format, device_type_) \
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HW_CONFIG_ENCODER(0, 1, 0, format, device_type_)
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#endif /* AVCODEC_HWCONFIG_H */
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