msmpeg4: fix asm code in ff_msmpeg4_pred_dc()

Fixes first half of Ticket2414

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
msmpeg4: ignore negative DC overflow

Fixes second half of Ticket2414

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
dfa: implement missing TDLT coding method
lavfi: switch to an AVOptions-based system.
af_resample: switch to an AVOptions-based system.
buffersrc: switch to an AVOptions-based system.
af_aformat: switch to an AVOptions-based system.
vf_(no)format: switch to an AVOptions-based system.
vf_aspect: switch to an AVOptions-based system.
vf_blackframe: switch to an AVOptions-based system.
vf_boxblur: switch to an AVOptions-based system.
vf_crop: switch to an AVOptions-based system.
vf_cropdetect: switch to an AVOptions-based system.
vf_delogo: switch to an AVOptions-based system.
vf_drawbox: switch to an AVOptions-based system.
vf_drawtext: switch to an AVOptions-based system.
vf_fade: switch to an AVOptions-based system.
vf_fieldorder: switch to an AVOptions-based system.
vf_fps: switch to an AVOptions-based system.
vf_frei0r: switch to an AVOptions-based system.