3 * Copyright (c) 2003 Michel Bardiaux
5 * This file is part of FFmpeg.
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.
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.
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
32 static int av_log_level = AV_LOG_INFO;
35 #if defined(_WIN32) && !defined(__MINGW32CE__)
37 static const uint8_t color[] = {12,12,12,14,7,7,7};
38 static int16_t background, attr_orig;
40 #define set_color(x) SetConsoleTextAttribute(con, background | color[x])
41 #define reset_color() SetConsoleTextAttribute(con, attr_orig)
43 static const uint8_t color[]={0x41,0x41,0x11,0x03,9,9,9};
44 #define set_color(x) fprintf(stderr, "\033[%d;3%dm", color[x]>>4, color[x]&15)
45 #define reset_color() fprintf(stderr, "\033[0m")
47 static int use_color=-1;
50 static void colored_fputs(int level, const char *str){
52 #if defined(_WIN32) && !defined(__MINGW32CE__)
53 CONSOLE_SCREEN_BUFFER_INFO con_info;
54 con = GetStdHandle(STD_ERROR_HANDLE);
55 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") && !getenv("FFMPEG_FORCE_NOCOLOR");
57 GetConsoleScreenBufferInfo(con, &con_info);
58 attr_orig = con_info.wAttributes;
59 background = attr_orig & 0xF0;
62 use_color= !getenv("NO_COLOR") && !getenv("FFMPEG_FORCE_NOCOLOR") &&
63 (getenv("TERM") && isatty(2) || getenv("FFMPEG_FORCE_COLOR"));
65 use_color= getenv("FFMPEG_FORCE_COLOR") && !getenv("NO_COLOR") && !getenv("FFMPEG_FORCE_NOCOLOR");
78 const char* av_default_item_name(void* ptr){
79 return (*(AVClass**)ptr)->class_name;
82 static void sanitize(uint8_t *line){
84 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
90 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
92 static int print_prefix=1;
94 static char prev[1024];
97 AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
98 if(level>av_log_level)
102 if(print_prefix && avc) {
103 if (avc->parent_log_context_offset) {
104 AVClass** parent= *(AVClass***)(((uint8_t*)ptr) + avc->parent_log_context_offset);
105 if(parent && *parent){
106 snprintf(line, sizeof(line), "[%s @ %p] ", (*parent)->item_name(parent), parent);
109 snprintf(line + strlen(line), sizeof(line) - strlen(line), "[%s @ %p] ", avc->item_name(ptr), ptr);
112 vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
114 print_prefix = strlen(line) && line[strlen(line)-1] == '\n';
117 if(!is_atty) is_atty= isatty(2) ? 1 : -1;
120 if(print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
123 fprintf(stderr, " Last message repeated %d times\r", count);
127 fprintf(stderr, " Last message repeated %d times\n", count);
132 colored_fputs(av_clip(level>>3, 0, 6), line);
135 static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
137 void av_log(void* avcl, int level, const char *fmt, ...)
139 AVClass* avc= avcl ? *(AVClass**)avcl : NULL;
142 if(avc && avc->version >= (50<<16 | 15<<8 | 2) && avc->log_level_offset_offset && level>=AV_LOG_FATAL)
143 level += *(int*)(((uint8_t*)avcl) + avc->log_level_offset_offset);
144 av_vlog(avcl, level, fmt, vl);
148 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
150 av_log_callback(avcl, level, fmt, vl);
153 int av_log_get_level(void)
158 void av_log_set_level(int level)
160 av_log_level = level;
163 void av_log_set_flags(int arg)
168 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
170 av_log_callback = callback;