set avi fsize to INT64_MAX if riff tag end is not set and file size is not available

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18052 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 78e5051e1e12cb3aabc17cce2e3e55119366071e..217a5133f330383f6089f75dfac48259a9a5422e 100644 (file)
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -260,7 +260,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
     avi->fsize = url_fsize(pb);
     if(avi->fsize<=0)
-        avi->fsize= avi->riff_end;
+        avi->fsize= avi->riff_end == 8 ? INT64_MAX : avi->riff_end;
 
     /* first list tag */
     stream_index = -1;