gst/flv/gstflvdemux.c: Fix non key unit seeking by always going to the previous keyfr...

gst/flv/gstflvdemux.c: Fix non key unit seeking by always going to the previous keyframe. Mark the discont flag when ...

Original commit message from CVS:
2008-11-24  Julien Moutte  <julien@fluendo.com>

* gst/flv/gstflvdemux.c: (gst_flv_demux_find_offset),
(gst_flv_demux_handle_seek_push),
(gst_flv_demux_handle_seek_pull):
Fix non key unit seeking by always going to the previous
keyframe. Mark
the discont flag when we've moved in the file.
* gst/flv/gstflvparse.c: (gst_flv_parse_audio_negotiate): MP3
streams
are parsed already, makes autoplugged pipelines shorter.