Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
- Move v5 and v6 initialisation to separate files.
- Move NEON IDCT selection to ff_dsputil_init_neon()
Originally committed as revision 20163 to svn://svn.ffmpeg.org/ffmpeg/trunk