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  • avcodec : add D3D12VA hardware accelerated H264 decoding

    5 décembre 2023, par Wu Jianhua
    avcodec : add D3D12VA hardware accelerated H264 decoding

    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>
    • [DH] configure
    • [DH] libavcodec/Makefile
    • [DH] libavcodec/d3d11va.h
    • [DH] libavcodec/d3d12va_decode.c
    • [DH] libavcodec/d3d12va_decode.h
    • [DH] libavcodec/d3d12va_h264.c
    • [DH] libavcodec/dxva2.c
    • [DH] libavcodec/dxva2.h
    • [DH] libavcodec/dxva2_av1.c
    • [DH] libavcodec/dxva2_h264.c
    • [DH] libavcodec/dxva2_hevc.c
    • [DH] libavcodec/dxva2_internal.h
    • [DH] libavcodec/dxva2_mpeg2.c
    • [DH] libavcodec/dxva2_vc1.c
    • [DH] libavcodec/dxva2_vp9.c
    • [DH] libavcodec/h264_slice.c
    • [DH] libavcodec/h264dec.c
    • [DH] libavcodec/hwaccels.h
    • [DH] libavcodec/hwconfig.h

  • Changelog : D3D12VA hardware accelerated H264, HEVC, VP9, AV1, MPEG-2 and VC1 decoding

    5 décembre 2023, par Wu Jianhua
    Changelog : D3D12VA hardware accelerated H264, HEVC, VP9, AV1, MPEG-2 and VC1 decoding

    Signed-off-by : Wu Jianhua <toqsxw@outlook.com>
    
Signed-off-by : Tong Wu <tong1.wu@intel.com>
    • [DH] Changelog

  • avutil/hwcontext_qsv : derive QSV frames to D3D11VA frames

    7 mai 2022, par Tong Wu
    avutil/hwcontext_qsv : derive QSV frames to D3D11VA frames

    Fixes :
    
$ ffmpeg.exe -y -hwaccel qsv -init_hw_device d3d11va=d3d11 \

    - init_hw_device qsv=qsv@d3d11 -c:v h264_qsv -i input.h264 \

    - vf "hwmap=derive_device=d3d11va,format=d3d11" -f null -
    

    Reviewed-by : Soft Works <softworkz@hotmail.com>
    
Signed-off-by : Tong Wu <tong1.wu@intel.com>
    
Signed-off-by : Haihao Xiang <haihao.xiang@intel.com>
    • [DH] libavutil/hwcontext_qsv.c

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