--- ffmpeg/libavformat/oggparsevorbis.c~	2010-10-16 09:20:41.000000000 -0400
+++ ffmpeg/libavformat/oggparsevorbis.c		2012-01-09 11:40:04.416994248 -0500
@@ -230,6 +230,8 @@ 
 
         st->codec->channels = bytestream_get_byte(&p);
         st->codec->sample_rate = bytestream_get_le32(&p);
+        if (!st->codec->sample_rate)
+            st->codec->sample_rate = 1;
         p += 4; // skip maximum bitrate
         st->codec->bit_rate = bytestream_get_le32(&p); // nominal bitrate
         p += 4; // skip minimum bitrate