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libavcodec
bswapdsp.c
Go to the documentation of this file.
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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 <stdint.h>
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#include "
libavutil/attributes.h
"
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#include "
libavutil/bswap.h
"
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#include "
bswapdsp.h
"
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static
void
bswap_buf
(uint32_t *dst,
const
uint32_t *
src
,
int
w)
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{
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int
i;
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for
(i = 0; i + 8 <= w; i += 8) {
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dst[i + 0] =
av_bswap32
(src[i + 0]);
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dst[i + 1] =
av_bswap32
(src[i + 1]);
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dst[i + 2] =
av_bswap32
(src[i + 2]);
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dst[i + 3] =
av_bswap32
(src[i + 3]);
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dst[i + 4] =
av_bswap32
(src[i + 4]);
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dst[i + 5] =
av_bswap32
(src[i + 5]);
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dst[i + 6] =
av_bswap32
(src[i + 6]);
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dst[i + 7] =
av_bswap32
(src[i + 7]);
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}
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for
(; i < w; i++)
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dst[i + 0] =
av_bswap32
(src[i + 0]);
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}
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static
void
bswap16_buf
(uint16_t *dst,
const
uint16_t *
src
,
int
len
)
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{
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while
(len--)
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*dst++ =
av_bswap16
(*src++);
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}
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av_cold
void
ff_bswapdsp_init
(
BswapDSPContext
*
c
)
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{
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c->
bswap_buf
=
bswap_buf
;
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c->
bswap16_buf
=
bswap16_buf
;
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if
(ARCH_X86)
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ff_bswapdsp_init_x86
(c);
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}
BswapDSPContext::bswap_buf
void(* bswap_buf)(uint32_t *dst, const uint32_t *src, int w)
Definition:
bswapdsp.h:25
bswap16_buf
static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len)
Definition:
bswapdsp.c:43
BswapDSPContext::bswap16_buf
void(* bswap16_buf)(uint16_t *dst, const uint16_t *src, int len)
Definition:
bswapdsp.h:26
av_bswap16
#define av_bswap16
Definition:
bswap.h:31
src
#define src
Definition:
vp8dsp.c:254
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:82
ff_bswapdsp_init_x86
void ff_bswapdsp_init_x86(BswapDSPContext *c)
Definition:
bswapdsp_init.c:29
av_bswap32
#define av_bswap32
Definition:
bswap.h:33
BswapDSPContext
Definition:
bswapdsp.h:24
bswap.h
byte swapping routines
bswap_buf
static void bswap_buf(uint32_t *dst, const uint32_t *src, int w)
Definition:
bswapdsp.c:25
c
static double c[64]
Definition:
vsrc_mptestsrc.c:87
ff_bswapdsp_init
av_cold void ff_bswapdsp_init(BswapDSPContext *c)
Definition:
bswapdsp.c:49
len
int len
Definition:
vorbis_enc_data.h:452
bswapdsp.h
Generated on Fri Jan 12 2018 01:45:35 for FFmpeg by
1.8.6