X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fgdv.c;h=b698497a6a85df096ccf7c15e359316e808b6673;hb=d49d7d238f15021350c54e9c681e250464057cc3;hp=a69c349cab3c48abe60ceffd8f804b2a464369e7;hpb=ee96ab2db507b95a694f10b152481cf71842de28;p=ffmpeg

diff --git a/libavformat/gdv.c b/libavformat/gdv.c
index a69c349cab3..b698497a6a8 100644
--- a/libavformat/gdv.c
+++ b/libavformat/gdv.c
@@ -34,7 +34,7 @@ typedef struct GDVContext {
     unsigned pal[256];
 } GDVContext;
 
-static int gdv_read_probe(AVProbeData *p)
+static int gdv_read_probe(const AVProbeData *p)
 {
     if (AV_RL32(p->buf) == 0x29111994)
         return AVPROBE_SCORE_MAX;
@@ -86,6 +86,9 @@ static int gdv_read_header(AVFormatContext *ctx)
     vst->nb_frames         = avio_rl16(pb);
 
     fps = avio_rl16(pb);
+    if (!fps)
+        return AVERROR_INVALIDDATA;
+
     snd_flags = avio_rl16(pb);
     if (snd_flags & 1) {
         ast = avformat_new_stream(ctx, 0);