X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fnsvdec.c;h=92f7d178f68887e4fbee9c77f9a60d32bf07344c;hb=768b07e3bca7e81d2f9c60badb3973d3d88481dc;hp=d8ce656817cab7009362d692fee25d14d006f772;hpb=f082dcab7cdf94b6268917a6dc472d594d7538f0;p=ffmpeg

diff --git a/libavformat/nsvdec.c b/libavformat/nsvdec.c
index d8ce656817c..92f7d178f68 100644
--- a/libavformat/nsvdec.c
+++ b/libavformat/nsvdec.c
@@ -176,6 +176,7 @@ typedef struct NSVContext {
     int16_t avsync;
     AVRational framerate;
     uint32_t *nsvs_timestamps;
+    int nsvf;
 } NSVContext;
 
 static const AVCodecTag nsv_codec_video_tags[] = {
@@ -266,6 +267,12 @@ static int nsv_parse_NSVf_header(AVFormatContext *s)
 
     nsv->state = NSV_UNSYNC; /* in case we fail */
 
+    if (nsv->nsvf) {
+        av_log(s, AV_LOG_TRACE, "Multiple NSVf\n");
+        return 0;
+    }
+    nsv->nsvf = 1;
+
     size = avio_rl32(pb);
     if (size < 28)
         return -1;