/* * Copyright (c) 2015 James Almer * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include <string.h> #include "checkasm.h" #include "libavcodec/alacdsp.h" #include "libavcodec/mathops.h" #include "libavutil/common.h" #include "libavutil/internal.h" #define BUF_SIZE 256 #define MAX_CHANNELS 2 #define randomize_buffers() \ do { \ int i; \ for (i = 0; i < BUF_SIZE*MAX_CHANNELS; i++) { \ int32_t r = sign_extend(rnd(), 24); \ ref_buf[i] = r; \ new_buf[i] = r; \ } \ } while (0) static void check_decorrelate_stereo(void) { LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]); LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS]); int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] }; int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] }; ALACDSPContext c; ff_alacdsp_init(&c); if (check_func(c.decorrelate_stereo, "alac_decorrelate_stereo")) { int len = (rnd() & 0xFF) + 1; int shift = rnd() & 0x1F; int weight = rnd() & 0xFF; declare_func(void, int32_t *buf[2], int len, int shift, int weight); randomize_buffers(); call_ref(ref, len, shift, weight); call_new(new, len, shift, weight); if (memcmp(ref[0], new[0], len * sizeof(int32_t)) || memcmp(ref[1], new[1], len * sizeof(int32_t))) fail(); bench_new(new, BUF_SIZE, shift, weight); } report("decorrelate_stereo"); } #undef randomize_buffers #define randomize_buffers() \ do { \ int i, j; \ for (i = 0; i < BUF_SIZE; i++) { \ for (j = 0; j < ch; j++) { \ int32_t r = sign_extend(rnd(), 24); \ ref[j][i] = r; \ new[j][i] = r; \ r = rnd() & 0xFF; \ ref_ebb[j][i] = r; \ new_ebb[j][i] = r; \ } \ } \ } while (0) static void check_append_extra_bits(void) { LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS*2]); LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS*2]); int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] }; int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] }; int32_t *ref_ebb[2] = { &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3] }; int32_t *new_ebb[2] = { &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3] }; ALACDSPContext c; static const char * const channels[2] = { "mono", "stereo" }; int ch; ff_alacdsp_init(&c); for (ch = 1; ch <= 2; ch++) { if (check_func(c.append_extra_bits[ch-1], "alac_append_extra_bits_%s", channels[ch-1])) { int len = (rnd() & 0xFF) + 1; declare_func(void, int32_t *buf[2], int32_t *ebb[2], int ebits, int ch, int len); randomize_buffers(); call_ref(ref, ref_ebb, 8, ch, len); call_new(new, new_ebb, 8, ch, len); if ( memcmp(ref[0], new[0], len * sizeof(int32_t)) || (ch == 2 && memcmp(ref[1], new[1], len * sizeof(int32_t)))) fail(); bench_new(new, new_ebb, 8, ch, BUF_SIZE); } } report("append_extra_bits"); } void checkasm_check_alacdsp(void) { check_decorrelate_stereo(); check_append_extra_bits(); }