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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>
This commit is contained in:
Fei Wang 2023-02-24 13:45:49 +08:00 committed by Haihao Xiang
parent 0825b461e6
commit 15992a040d
1 changed files with 10 additions and 1 deletions
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11
libavutil/hwcontext_vaapi.c
View File

@ -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;