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avfilter/drawtext: log why input pad failed to be configured

This commit is contained in:
Gyan Doshi 2019-12-23 21:40:02 +05:30
parent a13af9aee1
commit 287620f59c
1 changed files with 7 additions and 5 deletions
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12
libavfilter/vf_drawtext.c
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@ -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;
}