repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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_AUDIODSP_H | |
| 20 | #define AVCODEC_AUDIODSP_H | |
| 21 | ||
| 22 | #include <stdint.h> | |
| 23 | ||
| 24 | typedef struct AudioDSPContext { | |
| 25 | /** | |
| 26 | * Calculate scalar product of two vectors. | |
| 27 | * @param len length of vectors, should be multiple of 16 | |
| 28 | */ | |
| 29 | int32_t (*scalarproduct_int16)(const int16_t *v1, | |
| 30 | const int16_t *v2 /* align 16 */, int len); | |
| 31 | ||
| 32 | /** | |
| 33 | * Clip each element in an array of int32_t to a given minimum and | |
| 34 | * maximum value. | |
| 35 | * @param dst destination array | |
| 36 | * constraints: 16-byte aligned | |
| 37 | * @param src source array | |
| 38 | * constraints: 16-byte aligned | |
| 39 | * @param min minimum value | |
| 40 | * constraints: must be in the range [-(1 << 24), 1 << 24] | |
| 41 | * @param max maximum value | |
| 42 | * constraints: must be in the range [-(1 << 24), 1 << 24] | |
| 43 | * @param len number of elements in the array | |
| 44 | * constraints: multiple of 32 greater than zero | |
| 45 | */ | |
| 46 | void (*vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, | |
| 47 | int32_t max, unsigned int len); | |
| 48 | /* assume len is a multiple of 8, and arrays are 16-byte aligned */ | |
| 49 | void (*vector_clipf)(float *dst /* align 16 */, | |
| 50 | const float *src /* align 16 */, | |
| 51 | float min, float max, int len /* align 16 */); | |
| 52 | } AudioDSPContext; | |
| 53 | ||
| 54 | void ff_audiodsp_init(AudioDSPContext *c); | |
| 55 | void ff_audiodsp_init_arm(AudioDSPContext *c); | |
| 56 | void ff_audiodsp_init_ppc(AudioDSPContext *c); | |
| 57 | void ff_audiodsp_init_x86(AudioDSPContext *c); | |
| 58 | ||
| 59 | #endif /* AVCODEC_AUDIODSP_H */ |