Quoting Huang, Zhengxu (2017-08-10 03:35:09)
>From 873222a2fa0c0686e0611bc769707947fe243d27 Mon Sep 17 00:00:00 2001
>+static int eval_expr(AVFilterContext *ctx)
>+{
>+ QSVOverlayContext *vpp = ctx->priv;
>+ double *var_values = vpp->var_values;
>+ int ret = 0;
>+ AVExpr *ox_expr, *oy_expr, *ow_expr, *oh_expr;
Those need to be initialized to NULL, otherwise you have invalid frees
in the failure path.
Otherwise looks ok.
--
Anton Khirnov
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