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idctdsp_init_aarch64.c
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1 /*
2  * ARM-NEON-optimized IDCT functions
3  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4  * Copyright (c) 2017 Matthieu Bouron <matthieu.bouron@gmail.com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "libavutil/attributes.h"
24 #include "libavcodec/avcodec.h"
25 #include "libavcodec/idctdsp.h"
26 #include "idct.h"
27 
29  unsigned high_bit_depth)
30 {
31  if (!avctx->lowres && !high_bit_depth) {
32  if (avctx->idct_algo == FF_IDCT_AUTO ||
33  avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
34  avctx->idct_algo == FF_IDCT_SIMPLENEON) {
39  }
40  }
41 }
void ff_simple_idct_add_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data)
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:82
void ff_simple_idct_neon(int16_t *data)
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2719
void ff_simple_idct_put_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data)
#define FF_IDCT_AUTO
Definition: avcodec.h:2684
#define FF_IDCT_SIMPLEAUTO
Definition: avcodec.h:2697
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:2683
Libavcodec external API header.
#define FF_IDCT_SIMPLENEON
Definition: avcodec.h:2695
main external API structure.
Definition: avcodec.h:1488
void(* idct_add)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:79
av_cold void ff_idctdsp_init_aarch64(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
void(* idct_put)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:72
static double c[64]
enum idct_permutation_type perm_type
Definition: idctdsp.h:97
void(* idct)(int16_t *block)
Definition: idctdsp.h:65