1 /* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19 #ifndef AVCODEC_FLACDSP_H 20 #define AVCODEC_FLACDSP_H 21 22 #include <stdint.h> 23 #include "libavutil/internal.h" 24 #include "libavutil/samplefmt.h" 25 26 typedef struct FLACDSPContext { 27 void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels, 28 int len, int shift); 29 void (*lpc16)(int32_t *samples, const int coeffs[32], int order, 30 int qlevel, int len); 31 void (*lpc32)(int32_t *samples, const int coeffs[32], int order, 32 int qlevel, int len); 33 void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order, 34 const int32_t coefs[32], int shift); 35 void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order, 36 const int32_t coefs[32], int shift); 37 } FLACDSPContext; 38 39 void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps); 40 void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps); 41 void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps); 42 43 #endif /* AVCODEC_FLACDSP_H */ 44