FFmpeg
libavcodec
arm
vc1dsp_init_arm.c
Go to the documentation of this file.
1
/*
2
* This file is part of FFmpeg.
3
*
4
* FFmpeg is free software; you can redistribute it and/or
5
* modify it under the terms of the GNU Lesser General Public
6
* License as published by the Free Software Foundation; either
7
* version 2.1 of the License, or (at your option) any later version.
8
*
9
* FFmpeg is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12
* Lesser General Public License for more details.
13
*
14
* You should have received a copy of the GNU Lesser General Public
15
* License along with FFmpeg; if not, write to the Free Software
16
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
*/
18
19
#include <stdint.h>
20
21
#include "
libavutil/attributes.h
"
22
#include "
libavutil/arm/cpu.h
"
23
#include "
libavcodec/arm/startcode.h
"
24
#include "
libavcodec/vc1dsp.h
"
25
#include "
vc1dsp.h
"
26
27
av_cold
void
ff_vc1dsp_init_arm
(
VC1DSPContext
*dsp)
28
{
29
int
cpu_flags
=
av_get_cpu_flags
();
30
31
#if HAVE_ARMV6
32
if
(
have_setend
(
cpu_flags
))
33
dsp->
startcode_find_candidate
=
ff_startcode_find_candidate_armv6
;
34
#endif
35
if
(
have_neon
(
cpu_flags
))
36
ff_vc1dsp_init_neon
(dsp);
37
}
vc1dsp.h
startcode.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:109
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:56
vc1dsp.h
ff_vc1dsp_init_arm
av_cold void ff_vc1dsp_init_arm(VC1DSPContext *dsp)
Definition:
vc1dsp_init_arm.c:27
av_cold
#define av_cold
Definition:
attributes.h:90
cpu.h
ff_startcode_find_candidate_armv6
int ff_startcode_find_candidate_armv6(const uint8_t *buf, int size)
have_neon
#define have_neon(flags)
Definition:
cpu.h:26
attributes.h
VC1DSPContext::startcode_find_candidate
int(* startcode_find_candidate)(const uint8_t *buf, int size)
Search buf from the start for up to size bytes.
Definition:
vc1dsp.h:82
VC1DSPContext
Definition:
vc1dsp.h:35
have_setend
#define have_setend(flags)
Definition:
cpu.h:31
ff_vc1dsp_init_neon
void ff_vc1dsp_init_neon(VC1DSPContext *dsp)
Definition:
vc1dsp_init_neon.c:150
Generated on Mon Dec 23 2024 19:21:25 for FFmpeg by
1.8.17