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rearrange to work with autoconf
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Tue, 25 Sep 2012 15:55:33 +0200
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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
24 * logging functions
25 */
26 #include "error.h"
27 #include <unistd.h>
28 #include <stdlib.h>
29 #include "log.h"
30
31
32 static int av_log_level = AV_LOG_INFO;
33
34 static int use_ansi_color=-1;
35
36 #undef fprintf
37 static void colored_fputs(int color, const char *str){
38 if(use_ansi_color<0){
39 #if HAVE_ISATTY && !defined(_WIN32)
40 use_ansi_color= getenv("TERM") && !getenv("NO_COLOR") && isatty(2);
41 #else
42 use_ansi_color= 0;
43 #endif
44 }
45
46 if(use_ansi_color){
47 fprintf(stderr, "\033[%d;3%dm", color>>4, color&15);
48 }
49 fputs(str, stderr);
50 if(use_ansi_color){
51 fprintf(stderr, "\033[0m");
52 }
53 }
54
55 void av_log_default_callback(int level, const char* fmt, va_list vl)
56 {
57 static int print_prefix=1;
58 static int count;
59 static char line[1024], prev[1024];
60 static const uint8_t color[]={0x41,0x41,0x11,0x03,9,9,9};
61
62 if(level>av_log_level)
63 return;
64 #undef fprintf
65
66 line[0]=0;
67
68 vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
69
70 print_prefix= line[strlen(line)-1] == '\n';
71 if(print_prefix && !strcmp(line, prev)){
72 count++;
73 return;
74 }
75 if(count>0){
76 fprintf(stderr, " Last message repeated %d times\n", count);
77 count=0;
78 }
79 colored_fputs(color[av_clip(level>>3, 0, 6)], line);
80 strcpy(prev, line);
81 }
82
83 static void (*av_log_callback)(int, const char*, va_list) = av_log_default_callback;
84
85 void av_log(int level, const char *fmt, ...)
86 {
87 va_list vl;
88 va_start(vl, fmt);
89 av_vlog(level, fmt, vl);
90 va_end(vl);
91 }
92
93 void av_vlog(int level, const char *fmt, va_list vl)
94 {
95 av_log_callback(level, fmt, vl);
96 }
97
98 int av_log_get_level(void)
99 {
100 return av_log_level;
101 }
102
103 void av_log_set_level(int level)
104 {
105 av_log_level = level;
106 }
107
108 void av_log_set_callback(void (*callback)(int, const char*, va_list))
109 {
110 av_log_callback = callback;
111 }