FFmpeg
4.4.4
libavcodec
mips
xvididct_init_mips.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/mips/cpu.h
"
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#include "
xvididct_mips.h
"
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av_cold
void
ff_xvid_idct_init_mips
(
IDCTDSPContext
*
c
,
AVCodecContext
*avctx,
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unsigned
high_bit_depth)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_mmi
(
cpu_flags
)) {
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if
(!high_bit_depth) {
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if
(avctx->
idct_algo
==
FF_IDCT_AUTO
||
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avctx->
idct_algo
==
FF_IDCT_XVID
) {
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c
->idct_put =
ff_xvid_idct_put_mmi
;
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c
->idct_add =
ff_xvid_idct_add_mmi
;
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c
->idct =
ff_xvid_idct_mmi
;
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c
->perm_type =
FF_IDCT_PERM_NONE
;
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}
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}
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}
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}
av_cold
#define av_cold
Definition:
attributes.h:88
FF_IDCT_AUTO
#define FF_IDCT_AUTO
Definition:
avcodec.h:1720
FF_IDCT_XVID
#define FF_IDCT_XVID
Definition:
avcodec.h:1727
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:50
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:95
FF_IDCT_PERM_NONE
@ FF_IDCT_PERM_NONE
Definition:
idctdsp.h:38
cpu.h
have_mmi
#define have_mmi(flags)
Definition:
cpu.h:25
AVCodecContext
main external API structure.
Definition:
avcodec.h:536
AVCodecContext::idct_algo
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition:
avcodec.h:1719
IDCTDSPContext
Definition:
idctdsp.h:53
c
static double c[64]
Definition:
vsrc_mptestsrc.c:92
ff_xvid_idct_mmi
void ff_xvid_idct_mmi(int16_t *block)
Definition:
xvid_idct_mmi.c:225
ff_xvid_idct_put_mmi
void ff_xvid_idct_put_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition:
xvid_idct_mmi.c:245
ff_xvid_idct_add_mmi
void ff_xvid_idct_add_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition:
xvid_idct_mmi.c:251
ff_xvid_idct_init_mips
av_cold void ff_xvid_idct_init_mips(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
Definition:
xvididct_init_mips.c:24
xvididct_mips.h
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