8f9fe6ae34
30%/25% (fixed/float) faster mp3 decoding on Apple's A7. The floating point decoder is approximately 7% faster.
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/aarch64/cpu.h"
|
|
#include "libavcodec/mpegaudiodsp.h"
|
|
#include "config.h"
|
|
|
|
void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window,
|
|
int *dither, int16_t *samples, int incr);
|
|
void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window,
|
|
int *dither, float *samples, int incr);
|
|
|
|
av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (have_neon(cpu_flags)) {
|
|
s->apply_window_fixed = ff_mpadsp_apply_window_fixed_neon;
|
|
s->apply_window_float = ff_mpadsp_apply_window_float_neon;
|
|
}
|
|
}
|