don't use dsp.put_pixels_tab[0][0] with unaligned ptr (fix artifacts on altivec)
don't use dsp.put_pixels_tab[0][0] with unaligned ptr (fix artifacts on altivec)

git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@6231 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg