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[FFmpeg-devel,V2,2/3] libavutil/hwcontext_qsv: fix a bug for mapping vaapi frame to qsv

Message ID 20211130084406.758250-2-wenbin.chen@intel.com
State New
Headers show
Series [FFmpeg-devel,V2,1/3] libavcodec/vaapi_decode: fix the problem that init_pool_size < nb_surface | expand

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Commit Message

Wenbin Chen Nov. 30, 2021, 8:44 a.m. UTC 
From: nyanmisaka <nst799610810@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@gmail.com>
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
---
 libavutil/hwcontext_qsv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 268be9f8a1..a5d154a24d 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1218,7 +1218,7 @@  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;
             }