46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
|
/*
|
||
|
|
* ARM-NEON-optimized IDCT functions
|
||
|
|
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
|
||
|
|
* Copyright (c) 2017 Matthieu Bouron <matthieu.bouron@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 "libavutil/attributes.h"
|
||
|
|
#include "libavutil/cpu.h"
|
||
|
|
#include "libavutil/arm/cpu.h"
|
||
|
|
#include "libavcodec/avcodec.h"
|
||
|
|
#include "libavcodec/idctdsp.h"
|
||
|
|
#include "idct.h"
|
||
|
|
|
||
|
|
av_cold void ff_idctdsp_init_aarch64(IDCTDSPContext *c, AVCodecContext *avctx,
|
||
|
|
unsigned high_bit_depth)
|
||
|
|
{
|
||
|
|
int cpu_flags = av_get_cpu_flags();
|
||
|
|
|
||
|
|
if (have_neon(cpu_flags) && !avctx->lowres && !high_bit_depth) {
|
||
|
|
if (avctx->idct_algo == FF_IDCT_AUTO ||
|
||
|
|
avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
|
||
|
|
avctx->idct_algo == FF_IDCT_SIMPLENEON) {
|
||
|
|
c->idct_put = ff_simple_idct_put_neon;
|
||
|
|
c->idct_add = ff_simple_idct_add_neon;
|
||
|
|
c->idct = ff_simple_idct_neon;
|
||
|
|
c->perm_type = FF_IDCT_PERM_PARTTRANS;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|