ff_init_gamma_convert  323 libswscale/slice.c         res = ff_init_gamma_convert(c->desc + index, c->slice + srcIdx, c->inv_gamma);
ff_init_gamma_convert  372 libswscale/slice.c         res = ff_init_gamma_convert(c->desc + index, c->slice + dstIdx, c->gamma);
ff_init_gamma_convert 1022 libswscale/swscale_internal.h int ff_init_gamma_convert(SwsFilterDescriptor *desc, SwsSlice * src, uint16_t *table);