repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Monkey's Audio lossless audio decoder | |
| 3 | * Copyright (c) 2007 Benjamin Zores <ben@geexbox.org> | |
| 4 | * based upon libdemac from Dave Chapman. | |
| 5 | * | |
| 6 | * This file is part of FFmpeg. | |
| 7 | * | |
| 8 | * FFmpeg is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License as published by the Free Software Foundation; either | |
| 11 | * version 2.1 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * FFmpeg is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | * Lesser General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU Lesser General Public | |
| 19 | * License along with FFmpeg; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #include "avcodec.h" | |
| 24 | #include "lossless_audiodsp.h" | |
| 25 | ||
| 26 | static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2, | |
| 27 | const int16_t *v3, | |
| 28 | int order, int mul) | |
| 29 | { | |
| 30 | int res = 0; | |
| 31 | ||
| 32 | while (order--) { | |
| 33 | res += *v1 * *v2++; | |
| 34 | *v1++ += mul * *v3++; | |
| 35 | } | |
| 36 | return res; | |
| 37 | } | |
| 38 | ||
| 39 | av_cold void ff_llauddsp_init(LLAudDSPContext *c) | |
| 40 | { | |
| 41 | c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_c; | |
| 42 | ||
| 43 | if (ARCH_ARM) | |
| 44 | ff_llauddsp_init_arm(c); | |
| 45 | if (ARCH_PPC) | |
| 46 | ff_llauddsp_init_ppc(c); | |
| 47 | if (ARCH_X86) | |
| 48 | ff_llauddsp_init_x86(c); | |
| 49 | } |