Commit f80b381b authored by Stefano Sabatini's avatar Stefano Sabatini Committed by Anton Khirnov

graphparser: add a NULL check on the argument passed to strstr

Fix crash in create_filter() which occurrs if a scale filter with no
args is provided.
Signed-off-by: default avatarAnton Khirnov <>
parent c61bfc11
......@@ -121,7 +121,7 @@ static int create_filter(AVFilterContext **filt_ctx, AVFilterGraph *ctx, int ind
return ret;
if (!strcmp(filt_name, "scale") && !strstr(args, "flags")) {
if (!strcmp(filt_name, "scale") && args && !strstr(args, "flags")) {
snprintf(tmp_args, sizeof(tmp_args), "%s:%s",
args, ctx->scale_sws_opts);
args = tmp_args;
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