MJPEG Tools Svn

reorder shift_blk to mask stalled execution units

always have the inner loop process 4 rows (make initialization function set 2 rows to 0 if only processing 2 rows)

remove quant_non_intra_3dnow (in favor of the MMX version, which is faster anyways)

fast track common case in sub_mean_reduction (len==1)

repeat packssdw optimization for mblock_sub22_nearest4

reorg mblock_nearest4_sads_mmxe inner loop, using packssdw

mjpegtools finally moves away from gtk1/glib1 and into the gtk2/glib2 world!
Thanks to Bernhard Praschinger for the glav*.c modules. The autoconf changes
were trivial (thanks to pkg-config).

Fixed stupid error that stopped B frames working (and tidied up a little along the way)

Added the new version of the script from: Nicolas Boos

Fix possible un-init seq_end in picture records.