FFmpeg
version.c
Go to the documentation of this file.
1 /*
2  * Version functions.
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdlib.h>
22 
23 #include "config.h"
24 #include "avassert.h"
25 #include "avutil.h"
26 #include "common.h"
27 #include "libm.h"
28 #include "log.h"
29 #include "samplefmt.h"
30 #include "version.h"
31 
32 #include "libavutil/ffversion.h"
33 const char av_util_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
34 
35 const char *av_version_info(void)
36 {
37  return FFMPEG_VERSION;
38 }
39 
40 unsigned avutil_version(void)
41 {
46  av_assert0(HAVE_MMX2 == HAVE_MMXEXT);
47 
48  av_assert0(((size_t)-1) > 0); // C guarantees this but if false on a platform we care about revert at least b284e1ffe343d6697fb950d1ee517bafda8a9844
49 
50  if (av_sat_dadd32(1, 2) != 5) {
51  av_log(NULL, AV_LOG_FATAL, "Libavutil has been built with a broken binutils, please upgrade binutils and rebuild\n");
52  abort();
53  }
54 
55  if (llrint(1LL<<60) != 1LL<<60) {
56  av_log(NULL, AV_LOG_ERROR, "Libavutil has been linked to a broken llrint()\n");
57  }
58 
59  return LIBAVUTIL_VERSION_INT;
60 }
61 
62 const char *avutil_configuration(void)
63 {
64  return FFMPEG_CONFIGURATION;
65 }
66 
67 const char *avutil_license(void)
68 {
69 #define LICENSE_PREFIX "libavutil license: "
70  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
71 }
libm.h
av_sat_dadd32
#define av_sat_dadd32
Definition: common.h:129
av_version_info
const char * av_version_info(void)
Return an informative version string.
Definition: version.c:35
samplefmt.h
avassert.h
avutil_version
unsigned avutil_version(void)
Return the LIBAVUTIL_VERSION_INT constant.
Definition: version.c:40
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
avutil_configuration
const char * avutil_configuration(void)
Return the libavutil build-time configuration.
Definition: version.c:62
avutil_license
const char * avutil_license(void)
Return the libavutil license.
Definition: version.c:67
log.h
common.h
AVMEDIA_TYPE_ATTACHMENT
@ AVMEDIA_TYPE_ATTACHMENT
Opaque data information usually sparse.
Definition: avutil.h:205
LICENSE_PREFIX
#define LICENSE_PREFIX
version.h
AV_LOG_FATAL
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:174
LIBAVUTIL_VERSION_MICRO
#define LIBAVUTIL_VERSION_MICRO
Definition: version.h:83
AV_SAMPLE_FMT_DBLP
@ AV_SAMPLE_FMT_DBLP
double, planar
Definition: samplefmt.h:67
av_util_ffversion
const char av_util_ffversion[]
Definition: version.c:33
avutil.h
llrint
#define llrint(x)
Definition: libm.h:394
AV_PICTURE_TYPE_BI
@ AV_PICTURE_TYPE_BI
BI type.
Definition: avutil.h:285
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27