[FFmpeg-devel] [PATCH V4 2/2] libavutil/hwcontext_opencl: fix a bug for mapping qsv frame to opencl

[Chen, Wenbin]

> On Fri, 2022-01-07 at 15:36 +0800, Wenbin Chen wrote:
> > From: nyanmisaka <nst799610810 at gmail.com>
> >
> > mfxHDLPair was added to qsv, so modify qsv->opencl map function as well.
> > Now the following commandline works:
> >
> > ffmpeg -v verbose -init_hw_device vaapi=va:/dev/dri/renderD128 \
> > -init_hw_device qsv=qs at va -init_hw_device opencl=ocl at va -
> filter_hw_device ocl
> > \
> > -hwaccel qsv -hwaccel_output_format qsv -hwaccel_device qs -c:v
> h264_qsv \
> > -i input.264 -vf
> "hwmap=derive_device=opencl,format=opencl,avgblur_opencl, \
> > hwmap=derive_device=qsv:reverse=1:extra_hw_frames=32,format=qsv" \
> > -c:v h264_qsv output.264
> >
> > Signed-off-by: nyanmisaka <nst799610810 at gmail.com>
> > Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>
> > ---
> >  libavutil/hwcontext_opencl.c | 14 +++++++++++++-
> >  libavutil/hwcontext_qsv.c    | 34 ++++++++++++++++++++++++++++++++++
> >  2 files changed, 47 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavutil/hwcontext_opencl.c b/libavutil/hwcontext_opencl.c
> > index 26a3a24593..ceaef26f1c 100644
> > --- a/libavutil/hwcontext_opencl.c
> > +++ b/libavutil/hwcontext_opencl.c
> > @@ -72,6 +72,12 @@
> >  #include "hwcontext_drm.h"
> >  #endif
> >
> > +#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
> > +extern int ff_qsv_get_surface_base_handle(mfxFrameSurface1 *surf,
> > +                                          enum AVHWDeviceType base_dev_typ,
> > +                                          void **base_handle);
> > +#endif
> 
> opencl_vaapi_intel_media can be enabled without libmfx.
> 
> Thanks
> Haihao
> 
Thanks for review.
I will update.

Thanks
Wenbin
> 
> > +
> >
> >  typedef struct OpenCLDeviceContext {
> >      // Default command queue to use for transfer/mapping operations on
> > @@ -2248,8 +2254,14 @@ static int
> opencl_map_from_qsv(AVHWFramesContext
> > *dst_fc, AVFrame *dst,
> >
> >  #if CONFIG_LIBMFX
> >      if (src->format == AV_PIX_FMT_QSV) {
> > +        void *base_handle;
> >          mfxFrameSurface1 *mfx_surface = (mfxFrameSurface1*)src->data[3];
> > -        va_surface = *(VASurfaceID*)mfx_surface->Data.MemId;
> > +        err = ff_qsv_get_surface_base_handle(mfx_surface,
> > +                                             AV_HWDEVICE_TYPE_VAAPI,
> > +                                             &base_handle);
> > +        if (err < 0)
> > +            return err;
> > +        va_surface = *(VASurfaceID *)base_handle;
> >      } else
> >  #endif
> >          if (src->format == AV_PIX_FMT_VAAPI) {
> > diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> > index 853fb7f60d..6d9b8324c2 100644
> > --- a/libavutil/hwcontext_qsv.c
> > +++ b/libavutil/hwcontext_qsv.c
> > @@ -112,6 +112,40 @@ static const struct {
> >  #endif
> >  };
> >
> > +extern int ff_qsv_get_surface_base_handle(mfxFrameSurface1 *surf,
> > +                                          enum AVHWDeviceType base_dev_type,
> > +                                          void **base_handle);
> > +
> > +/**
> > + * Caller needs to allocate enough space for base_handle pointer.
> > + **/
> > +int ff_qsv_get_surface_base_handle(mfxFrameSurface1 *surf,
> > +                                   enum AVHWDeviceType base_dev_type,
> > +                                   void **base_handle)
> > +{
> > +    mfxHDLPair *handle_pair;
> > +    handle_pair = surf->Data.MemId;
> > +    switch (base_dev_type) {
> > +#if CONFIG_VAAPI
> > +    case AV_HWDEVICE_TYPE_VAAPI:
> > +        base_handle[0] = handle_pair->first;
> > +        return 0;
> > +#endif
> > +#if CONFIG_D3D11VA
> > +    case AV_HWDEVICE_TYPE_D3D11VA:
> > +        base_handle[0] = handle_pair->first;
> > +        base_handle[1] = handle_pair->secode;
> > +        return 0;
> > +#endif
> > +#if CONFIG_DXVA2
> > +    case AV_HWDEVICE_TYPE_DXVA2:
> > +        base_handle[0] = handle_pair->first;
> > +        return 0;
> > +#endif
> > +    }
> > +    return AVERROR(EINVAL);
> > +}
> > +
> >  static uint32_t qsv_fourcc_from_pix_fmt(enum AVPixelFormat pix_fmt)
> >  {
> >      int i;
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