mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
705f5e5e15
~25% faster dts decoding overall. The checkasm CPU cycles numbers are
not that useful since synth_filter_float() calls FFTContext.imdct_half().
cortex-a57 cortex-a53
synth_filter_float_c: 1866.2 3490.9
synth_filter_float_neon: 915.0 1531.5
With fftc.imdct_half forced to imdct_half_neon:
cortex-a57 cortex-a53
synth_filter_float_c: 1718.4 3025.3
synth_filter_float_neon: 926.2 1530.1
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/*
|
|
* copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* 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_SYNTH_FILTER_H
|
|
#define AVCODEC_SYNTH_FILTER_H
|
|
|
|
#include "fft.h"
|
|
|
|
typedef struct SynthFilterContext {
|
|
void (*synth_filter_float)(FFTContext *imdct,
|
|
float *synth_buf_ptr, int *synth_buf_offset,
|
|
float synth_buf2[32], const float window[512],
|
|
float out[32], const float in[32],
|
|
float scale);
|
|
} SynthFilterContext;
|
|
|
|
void ff_synth_filter_init(SynthFilterContext *c);
|
|
void ff_synth_filter_init_aarch64(SynthFilterContext *c);
|
|
void ff_synth_filter_init_arm(SynthFilterContext *c);
|
|
void ff_synth_filter_init_x86(SynthFilterContext *c);
|
|
|
|
#endif /* AVCODEC_SYNTH_FILTER_H */
|