From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avfilter/vf_signature: Dont crash on no frames
Date: Tue, 13 Feb 2024 03:07:59 +0100
Message-ID: <20240213020759.4284-1-michael@niedermayer.cc> (raw)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavfilter/vf_signature.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavfilter/vf_signature.c b/libavfilter/vf_signature.c
index 4896e8f2c11..53ed413a4ce 100644
--- a/libavfilter/vf_signature.c
+++ b/libavfilter/vf_signature.c
@@ -384,6 +384,9 @@ static int xml_export(AVFilterContext *ctx, StreamContext *sc, const char* filen
FILE* f;
unsigned int pot3[5] = { 3*3*3*3, 3*3*3, 3*3, 3, 1 };
+ if (!sc->coarseend->last)
+ return AVERROR(EINVAL); // No frames ?
+
f = avpriv_fopen_utf8(filename, "w");
if (!f) {
int err = AVERROR(EINVAL);
--
2.17.1
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next reply other threads:[~2024-02-13 2:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-13 2:07 Michael Niedermayer [this message]
2024-03-27 17:09 ` Michael Niedermayer
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