3 * Copyright (c) 2011 Justin Ruggles
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 static void ac3_exponent_min_c(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
29 if (!num_reuse_blocks)
32 for (i = 0; i < nb_coefs; i++) {
33 uint8_t min_exp = *exp;
34 uint8_t *exp1 = exp + 256;
35 for (blk = 0; blk < num_reuse_blocks; blk++) {
36 uint8_t next_exp = *exp1;
37 if (next_exp < min_exp)
45 static int ac3_max_msb_abs_int16_c(const int16_t *src, int len)
48 for (i = 0; i < len; i++)
53 av_cold void ff_ac3dsp_init(AC3DSPContext *c)
55 c->ac3_exponent_min = ac3_exponent_min_c;
56 c->ac3_max_msb_abs_int16 = ac3_max_msb_abs_int16_c;
59 ff_ac3dsp_init_x86(c);