D(float, sse) D(float, avx) D(int16, mmx) D(int16, sse2) av_cold int swri_rematrix_init_x86(struct SwrContext *s){ #if HAVE_YASM int mm_flags = av_get_cpu_flags(); int nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout); int nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout); int num = nb_in * nb_out; int i,j; s->mix_1_1_simd = NULL; s->mix_2_1_simd = NULL; if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){ if(EXTERNAL_MMX(mm_flags)) { s->mix_1_1_simd = ff_mix_1_1_a_int16_mmx; s->mix_2_1_simd = ff_mix_2_1_a_int16_mmx; } if(EXTERNAL_SSE2(mm_flags)) { s->mix_1_1_simd = ff_mix_1_1_a_int16_sse2; s->mix_2_1_simd = ff_mix_2_1_a_int16_sse2; } s->native_simd_matrix = av_mallocz_array(num, 2 * sizeof(int16_t)); s->native_simd_one = av_mallocz(2 * sizeof(int16_t)); if (!s->native_simd_matrix || !s->native_simd_one) return AVERROR(ENOMEM); for(i=0; i<nb_out; i++){ int sh = 0; for(j=0; j<nb_in; j++) sh = FFMAX(sh, FFABS(((int*)s->native_matrix)[i * nb_in + j])); sh = FFMAX(av_log2(sh) - 14, 0); for(j=0; j<nb_in; j++) { ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)+1] = 15 - sh; ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)] = ((((int*)s->native_matrix)[i * nb_in + j]) + (1<<sh>>1)) >> sh; } } ((int16_t*)s->native_simd_one)[1] = 14; ((int16_t*)s->native_simd_one)[0] = 16384; } else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){ if(EXTERNAL_SSE(mm_flags)) { s->mix_1_1_simd = ff_mix_1_1_a_float_sse; s->mix_2_1_simd = ff_mix_2_1_a_float_sse; } if(EXTERNAL_AVX(mm_flags)) { s->mix_1_1_simd = ff_mix_1_1_a_float_avx; s->mix_2_1_simd = ff_mix_2_1_a_float_avx; } s->native_simd_matrix = av_mallocz_array(num, sizeof(float)); s->native_simd_one = av_mallocz(sizeof(float)); if (!s->native_simd_matrix || !s->native_simd_one) return AVERROR(ENOMEM); memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float)); memcpy(s->native_simd_one, s->native_one, sizeof(float)); } #endif return 0; }