Ensure that there's pages to read for duration calculation in the ogg demuxer

Originally committed as revision 18523 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago · ddd94932fb
parent 99cc7f8a02
commit ddd94932fb
1 changed files with 1 additions and 1 deletions
--- a/libavformat/oggdec.c
+++ b/libavformat/oggdec.c
@ -450,7 +450,7 @@ ogg_get_length (AVFormatContext * s)
    size = url_fsize(s->pb);
    if(size < 0)
        return 0;
-    end = size > MAX_PAGE_SIZE? size - MAX_PAGE_SIZE: size;
+    end = size > MAX_PAGE_SIZE? size - MAX_PAGE_SIZE: 0;

    ogg_save (s);
    url_fseek (s->pb, end, SEEK_SET);