[FFmpeg-devel] [PATCH 3/4] libavutil/hwcontext_qsv: fix a bug for mapping vaapi frame to qsv

[Chen, Wenbin]

> From: nyanmisaka <nst799610810 at gmail.com>
> 
> The data stored in data[3] in VAAPI AVFrame is VASurfaceID while
> the data stored in pair->first is the pointer of VASurfaceID, so
> we need to do cast to make following commandline works:
> 
> ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 \
> -hwaccel_output_format vaapi -i input.264 \
> -vf "hwmap=derive_device=qsv,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_qsv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> index 5a285fd25b..8075c27862 100644
> --- a/libavutil/hwcontext_qsv.c
> +++ b/libavutil/hwcontext_qsv.c
> @@ -1219,7 +1219,7 @@ static int qsv_map_to(AVHWFramesContext
> *dst_ctx,
>          case AV_PIX_FMT_VAAPI:
>          {
>              mfxHDLPair *pair = (mfxHDLPair*)hwctx->surfaces[i].Data.MemId;
> -            if (pair->first == src->data[3]) {
> +            if (*(VASurfaceID*)pair->first == (VASurfaceID)src->data[3]) {
>                  index = i;
>                  break;
>              }
> --
> 2.25.1

ping