avcodec/x86/vp3dsp_init: move mmx functions under HAVE_MMX_INLINE

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/x86/mpegvideo: Move mmx functions under HAVE_MMX_INLINE

should fix ticket2755

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
dct_unquantize_h263_intra_c: fix assert condition

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>