avfilter/vf_signature: Dont crash on no frames

Michael Niedermayer committed 2 years ago

Commit 3d5f03b1 parent bba6df91 file · +3 −0Browse files

Unified · Split

libavfilter/vf_signature.c+3−0

@@ -379,6 +379,9 @@ static int xml_export(AVFilterContext ctx, StreamContext sc, const char* filen · 378 unmodified lines
379	FILE* f;	379	FILE* f;
380	unsigned int pot3[5] = { 3333, 333, 33, 3, 1 };	380	unsigned int pot3[5] = { 3333, 333, 33, 3, 1 };
381		381
		382	if (!sc->coarseend->last)
		383	return AVERROR(EINVAL); // No frames ?
		384
382	f = avpriv_fopen_utf8(filename, "w");	385	f = avpriv_fopen_utf8(filename, "w");
383	if (!f) {	386	if (!f) {
384	int err = AVERROR(EINVAL);	387	int err = AVERROR(EINVAL);