avg_pixels16_altivec 1443 libavcodec/ppc/dsputil_altivec.c     c->avg_pixels_tab[0][0] = avg_pixels16_altivec;
avg_pixels16_altivec   32 libavcodec/ppc/dsputil_altivec.h void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h);