> Command below failed. > ffmpeg -v verbose -init_hw_device vaapi=va:/dev/dri/renderD128 > -init_hw_device qsv=qs@va -hwaccel qsv -hwaccel_device qs > -filter_hw_device va -c:v h264_qsv > -i 1080P.264 -vf "hwmap,format=vaapi" -c:v h264_vaapi output.264 > > Cause: Assign pair->first directly to data[3] in vaapi frame. > pair->first is *VASurfaceID while data[3] in vaapi frame is > VASurfaceID. I fix this line of code. Now the command above works. > > Signed-off-by: Wenbin Chen <wenbin.c...@intel.com> > --- > libavutil/hwcontext_qsv.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c > index d431e71eab..b01236889e 100644 > --- a/libavutil/hwcontext_qsv.c > +++ b/libavutil/hwcontext_qsv.c > @@ -781,7 +781,11 @@ static int qsv_map_from(AVHWFramesContext *ctx, > case AV_HWDEVICE_TYPE_VAAPI: > { > mfxHDLPair *pair = (mfxHDLPair*)surf->Data.MemId; > - child_data = pair->first; > + /* pair->first is *VASurfaceID while data[3] in vaapi frame is > VASurfaceID, so > + * we need this casting for vaapi. > + * Add intptr_t to force cast from VASurfaceID(uint) type to > pointer(long) type > + * to avoid compile warning */ > + child_data = (uint8_t*)(intptr_t)*(VASurfaceID*)pair->first; > break; > } > #endif > -- > 2.25.1
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