---
libavfilter/vf_drawtext.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c
index 8f4badbdb5..aea17b6793 100644
--- a/libavfilter/vf_drawtext.c
+++ b/libavfilter/vf_drawtext.c
@@ -829,6 +829,7 @@ static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
DrawTextContext *s = ctx->priv;
+ char *expr;
int ret;
ff_draw_init(&s->dc, inlink->format, FF_DRAW_PROCESS_ALPHA);
@@ -854,14 +855,15 @@ static int config_input(AVFilterLink *inlink)
av_expr_free(s->a_pexpr);
s->x_pexpr = s->y_pexpr = s->a_pexpr = NULL;
- if ((ret = av_expr_parse(&s->x_pexpr, s->x_expr, var_names,
+ if ((ret = av_expr_parse(&s->x_pexpr, expr = 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,
+ (ret = av_expr_parse(&s->y_pexpr, expr = s->y_expr, var_names,
NULL, NULL, fun2_names, fun2, 0, ctx)) < 0 ||
- (ret = av_expr_parse(&s->a_pexpr, s->a_expr, var_names,
- NULL, NULL, fun2_names, fun2, 0, ctx)) < 0)
-
+ (ret = av_expr_parse(&s->a_pexpr, expr = s->a_expr, var_names,
+ NULL, NULL, fun2_names, fun2, 0, ctx)) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to parse expression: %s \n", expr);
return AVERROR(EINVAL);
+ }
return 0;
}
--
2.24.1
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