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 #ifndef AVCODEC_LOSSLESS_AUDIODSP_H 24 #define AVCODEC_LOSSLESS_AUDIODSP_H 25 26 #include <stdint.h> 27 28 typedef struct LLAudDSPContext { 29 /** 30 * Calculate scalar product of v1 and v2, 31 * and v1[i] += v3[i] * mul 32 * @param len length of vectors, should be multiple of 16, 33 * or padd v3 and v1 or v2 with zeros. 34 */ 35 int32_t (*scalarproduct_and_madd_int16)(int16_t *v1 /* align 16 */, 36 const int16_t *v2, 37 const int16_t *v3, 38 int len, int mul); 39 40 int32_t (*scalarproduct_and_madd_int32)(int16_t *v1 /* align 16 */, 41 const int32_t *v2, 42 const int16_t *v3, 43 int len, int mul); 44 } LLAudDSPContext; 45 46 void ff_llauddsp_init(LLAudDSPContext *c); 47 void ff_llauddsp_init_arm(LLAudDSPContext *c); 48 void ff_llauddsp_init_ppc(LLAudDSPContext *c); 49 void ff_llauddsp_init_x86(LLAudDSPContext *c); 50 51 #endif /* AVCODEC_LOSSLESS_AUDIODSP_H */ 52