Re: [FFmpeg-devel] [PATCH V3 2/2] libavutil/hwcontext_opencl: fix a bug for mapping qsv frame to opencl

["Chen, Wenbin" <wenbin.chen-at-intel.com@ffmpeg.org>]

> On Fri, 2021-12-10 at 13:38 +0800, Wenbin Chen wrote:
> > From: nyanmisaka <nst799610810@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@va -init_hw_device opencl=ocl@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@gmail.com>
> > Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
> > ---
> >  libavutil/hwcontext_opencl.c | 3 ++-
> >  libavutil/hwcontext_qsv.h    | 5 +++++
> >  2 files changed, 7 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavutil/hwcontext_opencl.c b/libavutil/hwcontext_opencl.c
> > index 26a3a24593..ab812999cd 100644
> > --- a/libavutil/hwcontext_opencl.c
> > +++ b/libavutil/hwcontext_opencl.c
> > @@ -48,6 +48,7 @@
> >  #if HAVE_OPENCL_VAAPI_INTEL_MEDIA
> >  #if CONFIG_LIBMFX
> >  #include <mfx/mfxstructures.h>
> > +#include "hwcontext_qsv.h"
> >  #endif
> >  #include <va/va.h>
> >  #include <CL/cl_va_api_media_sharing_intel.h>
> > @@ -2249,7 +2250,7 @@ static int
> opencl_map_from_qsv(AVHWFramesContext
> > *dst_fc, AVFrame *dst,
> >  #if CONFIG_LIBMFX
> >      if (src->format == AV_PIX_FMT_QSV) {
> >          mfxFrameSurface1 *mfx_surface = (mfxFrameSurface1*)src->data[3];
> > -        va_surface = *(VASurfaceID*)mfx_surface->Data.MemId;
> > +        va_surface = *MFXSURFACEP_TO_VASURFACEP(mfx_surface);
> >      } else
> >  #endif
> >          if (src->format == AV_PIX_FMT_VAAPI) {
> > diff --git a/libavutil/hwcontext_qsv.h b/libavutil/hwcontext_qsv.h
> > index b98d611cfc..957df01ef1 100644
> > --- a/libavutil/hwcontext_qsv.h
> > +++ b/libavutil/hwcontext_qsv.h
> > @@ -29,6 +29,11 @@
> >   * contain AVBufferRefs whose data pointer points to an
> mfxFrameSurface1
> > struct.
> >   */
> >
> > +#if CONFIG_VAAPI
> > +#define MFXSURFACEP_TO_VASURFACEP(surf) \
> > +    (VASurfaceID*)(((mfxHDLPair*)surf->Data.MemId)->first)
> > +#endif
> > +
> 
> Is it possible to remove the dependency on VAAPI in a public qsv header file ?
> 
> Thanks
> Haihao

How about moving this to qsv_internal.h?

> 
> >  /**
> >   * This struct is allocated as AVHWDeviceContext.hwctx
> >   */
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