FFmpeg  4.4.4
idctdsp_init_mips.c
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1 /*
2  * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com)
3  * Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
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 "libavutil/mips/cpu.h"
23 #include "idctdsp_mips.h"
24 #include "xvididct_mips.h"
25 
27  unsigned high_bit_depth)
28 {
30 
31  if (have_mmi(cpu_flags)) {
32  if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
33  (avctx->bits_per_raw_sample != 10) &&
34  (avctx->bits_per_raw_sample != 12) &&
35  ((avctx->idct_algo == FF_IDCT_AUTO) || (avctx->idct_algo == FF_IDCT_SIMPLE))) {
36  c->idct_put = ff_simple_idct_put_8_mmi;
37  c->idct_add = ff_simple_idct_add_8_mmi;
38  c->idct = ff_simple_idct_8_mmi;
39  c->perm_type = FF_IDCT_PERM_NONE;
40  }
41 
42  c->put_pixels_clamped = ff_put_pixels_clamped_mmi;
43  c->add_pixels_clamped = ff_add_pixels_clamped_mmi;
44  c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmi;
45  }
46 
47  if (have_msa(cpu_flags)) {
48  if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
49  (avctx->bits_per_raw_sample != 10) &&
50  (avctx->bits_per_raw_sample != 12) &&
51  (avctx->idct_algo == FF_IDCT_AUTO)) {
52  c->idct_put = ff_simple_idct_put_msa;
53  c->idct_add = ff_simple_idct_add_msa;
54  c->idct = ff_simple_idct_msa;
55  c->perm_type = FF_IDCT_PERM_NONE;
56  }
57 
58  c->put_pixels_clamped = ff_put_pixels_clamped_msa;
59  c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_msa;
60  c->add_pixels_clamped = ff_add_pixels_clamped_msa;
61  }
62 }
#define av_cold
Definition: attributes.h:88
#define FF_IDCT_AUTO
Definition: avcodec.h:1720
#define FF_IDCT_SIMPLE
Definition: avcodec.h:1722
static atomic_int cpu_flags
Definition: cpu.c:50
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
@ FF_IDCT_PERM_NONE
Definition: idctdsp.h:38
av_cold void ff_idctdsp_init_mips(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
void ff_put_signed_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:134
void ff_simple_idct_add_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_add_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:141
void ff_put_signed_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:85
void ff_add_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:150
void ff_simple_idct_msa(int16_t *block)
void ff_put_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:28
void ff_simple_idct_8_mmi(int16_t *block)
void ff_put_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:127
void ff_simple_idct_put_msa(uint8_t *dest, ptrdiff_t stride_dst, int16_t *block)
void ff_simple_idct_put_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_add_msa(uint8_t *dest, ptrdiff_t stride_dst, int16_t *block)
#define have_msa(flags)
Definition: cpu.h:26
#define have_mmi(flags)
Definition: cpu.h:25
main external API structure.
Definition: avcodec.h:536
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1747
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1719
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1754
static double c[64]