mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
d2ae5f77c6
Performance improvements: quant_bands: with: 681 decicycles in quant_bands, 8388453 runs, 155 skips without: 1190 decicycles in quant_bands, 8388386 runs, 222 skips Around 42% for the function Twoloop coder: abs_pow34: with/without: 7.82s/8.17s Around 4% for the entire encoder Both: with/without: 7.15s/8.17s Around 12% for the entire encoder Fast coder: abs_pow34: with/without: 3.40s/3.77s Around 10% for the entire encoder Both: with/without: 3.02s/3.77s Around 20% faster for the entire encoder Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com> Tested-by: Michael Niedermayer <michael@niedermayer.cc> Reviewed-by: James Almer <jamrial@gmail.com>
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
|
|
* AAC encoder assembly optimizations
|
|
* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "libavutil/float_dsp.h"
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "libavcodec/aacenc.h"
|
|
|
|
void ff_abs_pow34_sse(float *out, const float *in, const int size);
|
|
|
|
void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
|
|
int size, int is_signed, int maxval, const float Q34,
|
|
const float rounding);
|
|
|
|
av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (EXTERNAL_SSE(cpu_flags))
|
|
s->abs_pow34 = ff_abs_pow34_sse;
|
|
|
|
if (EXTERNAL_SSE2(cpu_flags))
|
|
s->quant_bands = ff_aac_quantize_bands_sse2;
|
|
}
|