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authorFei Wang <fei.w.wang-at-intel.com@ffmpeg.org>2023-02-24 13:45:49 +0800
committerHaihao Xiang <haihao.xiang@intel.com>2023-02-27 13:42:06 +0800
commit15992a040dd017d6897131373321522fe2867a6d (patch)
tree01d1a58fb5b6470c98d585cc0fa2b19776413a62 /libavutil
parent0825b461e64b5924fdee7055643db65870d2eaae (diff)
downloadffmpeg-15992a040dd017d6897131373321522fe2867a6d.tar.gz
lavu/hwcontext_vaapi: sync surface before export its DRM handle
According to description of vaExportSurfaceHandle in libva, vaSyncSurface must be called if the contents of the surface will be read. Fixes ticket #9967. Reviewed-by: Zhao Zhili <zhilizhao@tencent.com> Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/hwcontext_vaapi.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
index 938bd5447d..90c2c191d9 100644
--- a/libavutil/hwcontext_vaapi.c
+++ b/libavutil/hwcontext_vaapi.c
@@ -1319,8 +1319,17 @@ static int vaapi_map_to_drm_esh(AVHWFramesContext *hwfc, AVFrame *dst,
surface_id = (VASurfaceID)(uintptr_t)src->data[3];
export_flags = VA_EXPORT_SURFACE_SEPARATE_LAYERS;
- if (flags & AV_HWFRAME_MAP_READ)
+ if (flags & AV_HWFRAME_MAP_READ) {
export_flags |= VA_EXPORT_SURFACE_READ_ONLY;
+
+ vas = vaSyncSurface(hwctx->display, surface_id);
+ if (vas != VA_STATUS_SUCCESS) {
+ av_log(hwfc, AV_LOG_ERROR, "Failed to sync surface "
+ "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+ return AVERROR(EIO);
+ }
+ }
+
if (flags & AV_HWFRAME_MAP_WRITE)
export_flags |= VA_EXPORT_SURFACE_WRITE_ONLY;