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idctdsp_init_neon.c
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1 /*
2  * ARM-NEON-optimized IDCT functions
3  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdint.h>
23 
24 #include "libavutil/attributes.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavcodec/idctdsp.h"
27 #include "idct.h"
28 #include "idctdsp_arm.h"
29 
30 void ff_add_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t);
31 void ff_put_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t);
32 void ff_put_signed_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t);
33 
35  unsigned high_bit_depth)
36 {
37  if (!avctx->lowres && !high_bit_depth) {
38  if (avctx->idct_algo == FF_IDCT_AUTO ||
39  avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
40  avctx->idct_algo == FF_IDCT_SIMPLENEON) {
45  }
46  }
47 
51 }
void ff_simple_idct_add_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data)
void ff_add_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t)
void ff_put_signed_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t)
Macro definitions for various function/variable attributes.
uint8_t
#define av_cold
Definition: attributes.h:82
void(* add_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:61
av_cold void ff_idctdsp_init_neon(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
void ff_simple_idct_neon(int16_t *data)
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2733
void ff_simple_idct_put_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data)
#define FF_IDCT_AUTO
Definition: avcodec.h:2698
void(* put_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:55
#define FF_IDCT_SIMPLEAUTO
Definition: avcodec.h:2711
void ff_put_pixels_clamped_neon(const int16_t *, uint8_t *, ptrdiff_t)
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:2697
Libavcodec external API header.
#define FF_IDCT_SIMPLENEON
Definition: avcodec.h:2709
main external API structure.
Definition: avcodec.h:1502
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
void(* put_signed_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:58
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