avformat/apngdec: exit probing when skipping is not possible.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/ppc/lossless_audiodsp_altivec: POWER LE support for scalarproduct_and_madd_int16_altivec()

adds macro GET_T()

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