VAAPIDevicePriv  1413 libavutil/hwcontext_vaapi.c     VAAPIDevicePriv      *priv  = ctx->user_opaque;
VAAPIDevicePriv  1474 libavutil/hwcontext_vaapi.c     VAAPIDevicePriv *priv;
VAAPIDevicePriv  1634 libavutil/hwcontext_vaapi.c         VAAPIDevicePriv *priv;