mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
453aba71e6
This uses the following vectorisation:
for (i = 0; i < blocksize; i++) {
ang[i] = mag[i] - copysignf(fmaxf(ang[i], 0.f), mag[i]);
mag[i] = mag[i] - copysignf(fminf(ang[i], 0.f), mag[i]);
}
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_VORBISDSP_H
|
|
#define AVCODEC_VORBISDSP_H
|
|
|
|
#include <stddef.h>
|
|
|
|
typedef struct VorbisDSPContext {
|
|
/* assume len is a multiple of 4, and arrays are 16-byte aligned */
|
|
void (*vorbis_inverse_coupling)(float *mag, float *ang,
|
|
ptrdiff_t blocksize);
|
|
} VorbisDSPContext;
|
|
|
|
void ff_vorbisdsp_init(VorbisDSPContext *dsp);
|
|
|
|
/* for internal use only */
|
|
void ff_vorbisdsp_init_aarch64(VorbisDSPContext *dsp);
|
|
void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp);
|
|
void ff_vorbisdsp_init_arm(VorbisDSPContext *dsp);
|
|
void ff_vorbisdsp_init_ppc(VorbisDSPContext *dsp);
|
|
void ff_vorbisdsp_init_riscv(VorbisDSPContext *dsp);
|
|
|
|
#endif /* AVCODEC_VORBISDSP_H */
|