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
34 static int av_log_level = AV_LOG_INFO;
37 #if defined(_WIN32) && !defined(__MINGW32CE__)
39 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
40 [AV_LOG_PANIC /8] = 12,
41 [AV_LOG_FATAL /8] = 12,
42 [AV_LOG_ERROR /8] = 12,
43 [AV_LOG_WARNING/8] = 14,
45 [AV_LOG_VERBOSE/8] = 10,
46 [AV_LOG_DEBUG /8] = 10,
47 [16+AV_CLASS_CATEGORY_NA ] = 7,
48 [16+AV_CLASS_CATEGORY_INPUT ] = 13,
49 [16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
50 [16+AV_CLASS_CATEGORY_MUXER ] = 13,
51 [16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
52 [16+AV_CLASS_CATEGORY_ENCODER ] = 11,
53 [16+AV_CLASS_CATEGORY_DECODER ] = 3,
54 [16+AV_CLASS_CATEGORY_FILTER ] = 1,
55 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
58 static int16_t background, attr_orig;
60 #define set_color(x) SetConsoleTextAttribute(con, background | color[x])
61 #define reset_color() SetConsoleTextAttribute(con, attr_orig)
64 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
65 [AV_LOG_PANIC /8] = 0x41,
66 [AV_LOG_FATAL /8] = 0x41,
67 [AV_LOG_ERROR /8] = 0x11,
68 [AV_LOG_WARNING/8] = 0x03,
70 [AV_LOG_VERBOSE/8] = 0x02,
71 [AV_LOG_DEBUG /8] = 0x02,
72 [16+AV_CLASS_CATEGORY_NA ] = 9,
73 [16+AV_CLASS_CATEGORY_INPUT ] = 0x15,
74 [16+AV_CLASS_CATEGORY_OUTPUT ] = 0x05,
75 [16+AV_CLASS_CATEGORY_MUXER ] = 0x15,
76 [16+AV_CLASS_CATEGORY_DEMUXER ] = 0x05,
77 [16+AV_CLASS_CATEGORY_ENCODER ] = 0x16,
78 [16+AV_CLASS_CATEGORY_DECODER ] = 0x06,
79 [16+AV_CLASS_CATEGORY_FILTER ] = 0x04,
80 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 0x14,
83 #define set_color(x) fprintf(stderr, "\033[%d;3%dm", color[x] >> 4, color[x]&15)
84 #define reset_color() fprintf(stderr, "\033[0m")
86 static int use_color = -1;
89 static void colored_fputs(int level, const char *str)
92 #if defined(_WIN32) && !defined(__MINGW32CE__)
93 CONSOLE_SCREEN_BUFFER_INFO con_info;
94 con = GetStdHandle(STD_ERROR_HANDLE);
95 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
96 !getenv("AV_LOG_FORCE_NOCOLOR");
98 GetConsoleScreenBufferInfo(con, &con_info);
99 attr_orig = con_info.wAttributes;
100 background = attr_orig & 0xF0;
103 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
104 (getenv("TERM") && isatty(2) ||
105 getenv("AV_LOG_FORCE_COLOR"));
107 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
108 !getenv("AV_LOG_FORCE_NOCOLOR");
121 const char *av_default_item_name(void *ptr)
123 return (*(AVClass **) ptr)->class_name;
126 AVClassCategory av_default_get_category(void *ptr)
128 return (*(AVClass **) ptr)->category;
131 static void sanitize(uint8_t *line){
133 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
139 static int get_category(void *ptr){
140 AVClass *avc = *(AVClass **) ptr;
142 || (avc->version&0xFF)<100
143 || avc->version < (51 << 16 | 59 << 8)
144 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
146 if(avc->get_category)
147 return avc->get_category(ptr) + 16;
149 return avc->category + 16;
152 static void format_line(void *ptr, int level, const char *fmt, va_list vl,
153 char part[3][LINE_SZ], int part_size, int *print_prefix, int type[2])
155 AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
156 part[0][0] = part[1][0] = part[2][0] = 0;
157 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
158 if (*print_prefix && avc) {
159 if (avc->parent_log_context_offset) {
160 AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
161 avc->parent_log_context_offset);
162 if (parent && *parent) {
163 snprintf(part[0], part_size, "[%s @ %p] ",
164 (*parent)->item_name(parent), parent);
165 if(type) type[0] = get_category(((uint8_t *) ptr) + avc->parent_log_context_offset);
168 snprintf(part[1], part_size, "[%s @ %p] ",
169 avc->item_name(ptr), ptr);
170 if(type) type[1] = get_category(ptr);
173 vsnprintf(part[2], part_size, fmt, vl);
175 *print_prefix = strlen(part[2]) && part[2][strlen(part[2]) - 1] == '\n';
178 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
179 char *line, int line_size, int *print_prefix)
181 char part[3][LINE_SZ];
182 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), print_prefix, NULL);
183 snprintf(line, line_size, "%s%s%s", part[0], part[1], part[2]);
186 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
188 static int print_prefix = 1;
190 static char prev[LINE_SZ];
191 char part[3][LINE_SZ];
196 if (level > av_log_level)
198 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), &print_prefix, type);
199 snprintf(line, sizeof(line), "%s%s%s", part[0], part[1], part[2]);
203 is_atty = isatty(2) ? 1 : -1;
207 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
210 fprintf(stderr, " Last message repeated %d times\r", count);
214 fprintf(stderr, " Last message repeated %d times\n", count);
219 colored_fputs(type[0], part[0]);
221 colored_fputs(type[1], part[1]);
223 colored_fputs(av_clip(level >> 3, 0, 6), part[2]);
226 static void (*av_log_callback)(void*, int, const char*, va_list) =
227 av_log_default_callback;
229 void av_log(void* avcl, int level, const char *fmt, ...)
231 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
234 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
235 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
236 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
237 av_vlog(avcl, level, fmt, vl);
241 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
244 av_log_callback(avcl, level, fmt, vl);
247 int av_log_get_level(void)
252 void av_log_set_level(int level)
254 av_log_level = level;
257 void av_log_set_flags(int arg)
262 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
264 av_log_callback = callback;