ffmpeg / libavutil / log.c @ b9c353ff
History | View | Annotate | Download (2.27 KB)
1 |
/*
|
---|---|
2 |
* log functions
|
3 |
* Copyright (c) 2003 Michel Bardiaux
|
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 |
/**
|
23 |
* @file libavutil/log.c
|
24 |
* logging functions
|
25 |
*/
|
26 |
|
27 |
#include "avutil.h" |
28 |
#include "log.h" |
29 |
|
30 |
int av_log_level = AV_LOG_INFO;
|
31 |
|
32 |
void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl) |
33 |
{ |
34 |
static int print_prefix=1; |
35 |
static int count; |
36 |
static char line[1024], prev[1024]; |
37 |
AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
|
38 |
if(level>av_log_level)
|
39 |
return;
|
40 |
#undef fprintf
|
41 |
if(print_prefix && avc) {
|
42 |
snprintf(line, sizeof(line), "[%s @ %p]", avc->item_name(ptr), ptr); |
43 |
}else
|
44 |
line[0]=0; |
45 |
|
46 |
vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
|
47 |
|
48 |
print_prefix= line[strlen(line)-1] == '\n'; |
49 |
if(print_prefix && !strcmp(line, prev)){
|
50 |
count++; |
51 |
return;
|
52 |
} |
53 |
if(count>0){ |
54 |
fprintf(stderr, " Last message repeated %d times\n", count);
|
55 |
count=0;
|
56 |
} |
57 |
fputs(line, stderr); |
58 |
strcpy(prev, line); |
59 |
} |
60 |
|
61 |
static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback; |
62 |
|
63 |
void av_log(void* avcl, int level, const char *fmt, ...) |
64 |
{ |
65 |
va_list vl; |
66 |
va_start(vl, fmt); |
67 |
av_vlog(avcl, level, fmt, vl); |
68 |
va_end(vl); |
69 |
} |
70 |
|
71 |
void av_vlog(void* avcl, int level, const char *fmt, va_list vl) |
72 |
{ |
73 |
av_log_callback(avcl, level, fmt, vl); |
74 |
} |
75 |
|
76 |
int av_log_get_level(void) |
77 |
{ |
78 |
return av_log_level;
|
79 |
} |
80 |
|
81 |
void av_log_set_level(int level) |
82 |
{ |
83 |
av_log_level = level; |
84 |
} |
85 |
|
86 |
void av_log_set_callback(void (*callback)(void*, int, const char*, va_list)) |
87 |
{ |
88 |
av_log_callback = callback; |
89 |
} |