diff --git a/media/libfishsound/src/libfishsound/fishsound_vorbis.c b/media/libfishsound/src/libfishsound/fishsound_vorbis.c
--- a/media/libfishsound/src/libfishsound/fishsound_vorbis.c
+++ b/media/libfishsound/src/libfishsound/fishsound_vorbis.c
@@ -412,7 +412,7 @@
   FishSoundVorbisInfo * fsv = (FishSoundVorbisInfo *)fsound->codec_data;
 
   vorbis_block_init (&fsv->vd, &fsv->vb);
-
+  fsv->packetno = 0;
   return 0;
 }