mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.7 KiB
91 lines
3.7 KiB
/* |
|
* This file is part of Libav. |
|
* |
|
* Libav is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* Libav is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with Libav; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#ifndef AVCODEC_MPEGAUDIODSP_H |
|
#define AVCODEC_MPEGAUDIODSP_H |
|
|
|
#include <stddef.h> |
|
#include <stdint.h> |
|
|
|
#include "libavutil/common.h" |
|
|
|
typedef struct MPADSPContext { |
|
void (*apply_window_float)(float *synth_buf, float *window, |
|
int *dither_state, float *samples, |
|
ptrdiff_t incr); |
|
void (*apply_window_fixed)(int32_t *synth_buf, int32_t *window, |
|
int *dither_state, int16_t *samples, |
|
ptrdiff_t incr); |
|
void (*dct32_float)(float *dst, const float *src); |
|
void (*dct32_fixed)(int *dst, const int *src); |
|
void (*imdct36_blocks_float)(float *out, float *buf, float *in, |
|
int count, int switch_point, int block_type); |
|
void (*imdct36_blocks_fixed)(int *out, int *buf, int *in, |
|
int count, int switch_point, int block_type); |
|
} MPADSPContext; |
|
|
|
void ff_mpadsp_init(MPADSPContext *s); |
|
|
|
extern int32_t ff_mpa_synth_window_fixed[]; |
|
extern float ff_mpa_synth_window_float[]; |
|
|
|
extern const int32_t ff_mpa_enwindow[257]; |
|
|
|
void ff_mpa_synth_filter_fixed(MPADSPContext *s, |
|
int32_t *synth_buf_ptr, int *synth_buf_offset, |
|
int32_t *window, int *dither_state, |
|
int16_t *samples, ptrdiff_t incr, |
|
int32_t *sb_samples); |
|
|
|
void ff_mpa_synth_filter_float(MPADSPContext *s, |
|
float *synth_buf_ptr, int *synth_buf_offset, |
|
float *window, int *dither_state, |
|
float *samples, ptrdiff_t incr, |
|
float *sb_samples); |
|
|
|
void ff_mpadsp_init_aarch64(MPADSPContext *s); |
|
void ff_mpadsp_init_arm(MPADSPContext *s); |
|
void ff_mpadsp_init_ppc(MPADSPContext *s); |
|
void ff_mpadsp_init_x86(MPADSPContext *s); |
|
|
|
void ff_mpa_synth_init_float(float *window); |
|
void ff_mpa_synth_init_fixed(int32_t *window); |
|
|
|
void ff_mpadsp_apply_window_float(float *synth_buf, float *window, |
|
int *dither_state, float *samples, |
|
ptrdiff_t incr); |
|
void ff_mpadsp_apply_window_fixed(int32_t *synth_buf, int32_t *window, |
|
int *dither_state, int16_t *samples, |
|
ptrdiff_t incr); |
|
|
|
void ff_imdct36_blocks_float(float *out, float *buf, float *in, |
|
int count, int switch_point, int block_type); |
|
|
|
void ff_imdct36_blocks_fixed(int *out, int *buf, int *in, |
|
int count, int switch_point, int block_type); |
|
|
|
void ff_init_mpadsp_tabs_float(void); |
|
void ff_init_mpadsp_tabs_fixed(void); |
|
|
|
/** For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned */ |
|
#define MDCT_BUF_SIZE FFALIGN(36, 2*4) |
|
|
|
extern int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]; |
|
extern float ff_mdct_win_float[8][MDCT_BUF_SIZE]; |
|
|
|
#endif /* AVCODEC_MPEGAUDIODSP_H */
|
|
|