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_MPEGAUDIODSP_H | |
| 20 | #define AVCODEC_MPEGAUDIODSP_H | |
| 21 | ||
| 22 | #include <stdint.h> | |
| 23 | #include "libavutil/common.h" | |
| 24 | ||
| 25 | typedef struct MPADSPContext { | |
| 26 | void (*apply_window_float)(float *synth_buf, float *window, | |
| 27 | int *dither_state, float *samples, int incr); | |
| 28 | void (*apply_window_fixed)(int32_t *synth_buf, int32_t *window, | |
| 29 | int *dither_state, int16_t *samples, int incr); | |
| 30 | void (*dct32_float)(float *dst, const float *src); | |
| 31 | void (*dct32_fixed)(int *dst, const int *src); | |
| 32 | ||
| 33 | void (*imdct36_blocks_float)(float *out, float *buf, float *in, | |
| 34 | int count, int switch_point, int block_type); | |
| 35 | void (*imdct36_blocks_fixed)(int *out, int *buf, int *in, | |
| 36 | int count, int switch_point, int block_type); | |
| 37 | } MPADSPContext; | |
| 38 | ||
| 39 | void ff_mpadsp_init(MPADSPContext *s); | |
| 40 | ||
| 41 | extern int32_t ff_mpa_synth_window_fixed[]; | |
| 42 | extern float ff_mpa_synth_window_float[]; | |
| 43 | ||
| 44 | extern const int32_t ff_mpa_enwindow[257]; | |
| 45 | ||
| 46 | void ff_mpa_synth_filter_fixed(MPADSPContext *s, | |
| 47 | int32_t *synth_buf_ptr, int *synth_buf_offset, | |
| 48 | int32_t *window, int *dither_state, | |
| 49 | int16_t *samples, int incr, | |
| 50 | int32_t *sb_samples); | |
| 51 | ||
| 52 | void ff_mpa_synth_filter_float(MPADSPContext *s, | |
| 53 | float *synth_buf_ptr, int *synth_buf_offset, | |
| 54 | float *window, int *dither_state, | |
| 55 | float *samples, int incr, | |
| 56 | float *sb_samples); | |
| 57 | ||
| 58 | void ff_mpadsp_init_aarch64(MPADSPContext *s); | |
| 59 | void ff_mpadsp_init_arm(MPADSPContext *s); | |
| 60 | void ff_mpadsp_init_ppc(MPADSPContext *s); | |
| 61 | void ff_mpadsp_init_x86(MPADSPContext *s); | |
| 62 | void ff_mpadsp_init_mipsfpu(MPADSPContext *s); | |
| 63 | void ff_mpadsp_init_mipsdspr1(MPADSPContext *s); | |
| 64 | ||
| 65 | void ff_mpa_synth_init_float(float *window); | |
| 66 | void ff_mpa_synth_init_fixed(int32_t *window); | |
| 67 | ||
| 68 | void ff_mpadsp_apply_window_float(float *synth_buf, float *window, | |
| 69 | int *dither_state, float *samples, | |
| 70 | int incr); | |
| 71 | void ff_mpadsp_apply_window_fixed(int32_t *synth_buf, int32_t *window, | |
| 72 | int *dither_state, int16_t *samples, | |
| 73 | int incr); | |
| 74 | ||
| 75 | void ff_imdct36_blocks_float(float *out, float *buf, float *in, | |
| 76 | int count, int switch_point, int block_type); | |
| 77 | ||
| 78 | void ff_imdct36_blocks_fixed(int *out, int *buf, int *in, | |
| 79 | int count, int switch_point, int block_type); | |
| 80 | ||
| 81 | void ff_init_mpadsp_tabs_float(void); | |
| 82 | void ff_init_mpadsp_tabs_fixed(void); | |
| 83 | ||
| 84 | /** For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned */ | |
| 85 | #define MDCT_BUF_SIZE FFALIGN(36, 2*4) | |
| 86 | ||
| 87 | extern int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]; | |
| 88 | extern float ff_mdct_win_float[8][MDCT_BUF_SIZE]; | |
| 89 | ||
| 90 | #endif /* AVCODEC_MPEGAUDIODSP_H */ |