On 9/13/2021 3:22 AM, Wenbin Chen wrote:
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.264Cause: 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
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