---
libavfilter/vf_drawtext.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c
index 2989bd5..53340c8 100644
--- a/libavfilter/vf_drawtext.c
+++ b/libavfilter/vf_drawtext.c
@@ -402,6 +402,10 @@ static av_cold void uninit(AVFilterContext *ctx)
DrawTextContext *s = ctx->priv;
int i;
+ av_expr_free(s->x_pexpr);
+ av_expr_free(s->y_pexpr);
+ av_expr_free(s->d_pexpr);
+ s->x_pexpr = s->y_pexpr = s->d_pexpr = NULL;
av_freep(&s->expanded_text);
av_freep(&s->positions);
av_tree_enumerate(s->glyphs, NULL, NULL, glyph_enu_free);
@@ -573,6 +577,10 @@ static int config_input(AVFilterLink *inlink)
av_lfg_init(&s->prng, av_get_random_seed());
+ av_expr_free(s->x_pexpr);
+ av_expr_free(s->y_pexpr);
+ av_expr_free(s->d_pexpr);
+ s->x_pexpr = s->y_pexpr = s->d_pexpr = NULL;
if ((ret = av_expr_parse(&s->x_pexpr, s->x_expr, var_names,
NULL, NULL, fun2_names, fun2, 0, ctx)) < 0 ||
(ret = av_expr_parse(&s->y_pexpr, s->y_expr, var_names,
--
1.7.10.4
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