diff options
| -rw-r--r-- | libavfilter/vf_format.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavfilter/vf_format.c b/libavfilter/vf_format.c index d37f870537..914089deab 100644 --- a/libavfilter/vf_format.c +++ b/libavfilter/vf_format.c @@ -59,6 +59,11 @@ static av_cold int init(AVFilterContext *ctx) int nb_formats = 1; int i; + if (!s->pix_fmts) { + av_log(ctx, AV_LOG_ERROR, "Empty output format string.\n"); + return AVERROR(EINVAL); + } + /* count the formats */ cur = s->pix_fmts; while ((cur = strchr(cur, '|'))) { |