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, 10 };
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, 2 };
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)
53 #if defined(_WIN32) && !defined(__MINGW32CE__)
54 CONSOLE_SCREEN_BUFFER_INFO con_info;
55 con = GetStdHandle(STD_ERROR_HANDLE);
56 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
57 !getenv("AV_LOG_FORCE_NOCOLOR");
59 GetConsoleScreenBufferInfo(con, &con_info);
60 attr_orig = con_info.wAttributes;
61 background = attr_orig & 0xF0;
64 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
65 (getenv("TERM") && isatty(2) ||
66 getenv("AV_LOG_FORCE_COLOR"));
68 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
69 !getenv("AV_LOG_FORCE_NOCOLOR");
82 const char *av_default_item_name(void *ptr)
84 return (*(AVClass **) ptr)->class_name;
87 static void sanitize(uint8_t *line){
89 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
95 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
96 char *line, int line_size, int *print_prefix)
98 AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
100 if (*print_prefix && avc) {
101 if (avc->parent_log_context_offset) {
102 AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
103 avc->parent_log_context_offset);
104 if (parent && *parent) {
105 snprintf(line, line_size, "[%s @ %p] ",
106 (*parent)->item_name(parent), parent);
109 snprintf(line + strlen(line), line_size - strlen(line), "[%s @ %p] ",
110 avc->item_name(ptr), ptr);
113 vsnprintf(line + strlen(line), line_size - strlen(line), fmt, vl);
115 *print_prefix = strlen(line) && line[strlen(line) - 1] == '\n';
118 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
120 static int print_prefix = 1;
122 static char prev[1024];
126 if (level > av_log_level)
128 av_log_format_line(ptr, level, fmt, vl, line, sizeof(line), &print_prefix);
132 is_atty = isatty(2) ? 1 : -1;
136 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
139 fprintf(stderr, " Last message repeated %d times\r", count);
143 fprintf(stderr, " Last message repeated %d times\n", count);
148 colored_fputs(av_clip(level >> 3, 0, 6), line);
151 static void (*av_log_callback)(void*, int, const char*, va_list) =
152 av_log_default_callback;
154 void av_log(void* avcl, int level, const char *fmt, ...)
156 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
159 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
160 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
161 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
162 av_vlog(avcl, level, fmt, vl);
166 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
168 av_log_callback(avcl, level, fmt, vl);
171 int av_log_get_level(void)
176 void av_log_set_level(int level)
178 av_log_level = level;
181 void av_log_set_flags(int arg)
186 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
188 av_log_callback = callback;