MJPEG Tools Svn

Bit of tidying up. Cleanup - remove fastintfns.h since nothing in that was
used so it shouldn't be included.

Utilize movd mmx->gpr so return values don't go through memory

fix to lav_io.c which gets 16bit decoding working for certain, 16 bit encoding
(writing) _should_ work also. 8bit (does anyone still use 8bit sound?) is
probably still non-functional and will be fixed in the days ahead.

intabs() has been replaced by math.h + abs()

Yay! intabs() is gone. If math.h is in scope then gcc will do the right thing
with abs().

Trying to get rid of intabs(). Since <math.h> is in scope use abs() and let
gcc do The Right Thing ;)

Fix in the spirit of Gert's patch but without broken syntax ;-)

fix instruction operands for mmx/sse assembly

Merge in changes on MPEG_DEVEL branch. Actually done by back-mergeing from HEAD
into MPEG_DEVEL and then simply copying MPEG_DEVEL over.

Check-point prior to final merge of HEAD changes