00001 /* 00002 * AC-3 DSP utils 00003 * Copyright (c) 2011 Justin Ruggles 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVCODEC_AC3DSP_H 00023 #define AVCODEC_AC3DSP_H 00024 00025 #include <stdint.h> 00026 00027 typedef struct AC3DSPContext { 00037 void (*ac3_exponent_min)(uint8_t *exp, int num_reuse_blocks, int nb_coefs); 00038 00048 int (*ac3_max_msb_abs_int16)(const int16_t *src, int len); 00049 } AC3DSPContext; 00050 00051 void ff_ac3dsp_init (AC3DSPContext *c); 00052 void ff_ac3dsp_init_x86(AC3DSPContext *c); 00053 00054 #endif /* AVCODEC_AC3DSP_H */