X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Fhwcontext_qsv.c;h=8e43420e7042608edd7061fd92e8e40df8a6c523;hb=0525722ca03aa6c3c8d828ad278e1870731bfafc;hp=f1d16d8bf92c6eb896cb7411b3106bb8d3340bb8;hpb=95a52ca884ce7d7e0a0653c558bd56039ffdc8c4;p=ffmpeg

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index f1d16d8bf92..8e43420e704 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1029,6 +1029,23 @@ static int qsv_device_derive_from_child(AVHWDeviceContext *ctx,
         goto fail;
     }
 
+    err = MFXQueryVersion(hwctx->session, &ver);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error querying an MFX session: %d.\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
+    MFXClose(hwctx->session);
+
+    err = MFXInit(implementation, &ver, &hwctx->session);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Error initializing an MFX session: %d.\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
     err = MFXVideoCORE_SetHandle(hwctx->session, handle_type, handle);
     if (err != MFX_ERR_NONE) {
         av_log(ctx, AV_LOG_ERROR, "Error setting child device handle: "