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
45 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
50 static int av_log_level = AV_LOG_INFO;
53 #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE
55 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
56 [AV_LOG_PANIC /8] = 12,
57 [AV_LOG_FATAL /8] = 12,
58 [AV_LOG_ERROR /8] = 12,
59 [AV_LOG_WARNING/8] = 14,
61 [AV_LOG_VERBOSE/8] = 10,
62 [AV_LOG_DEBUG /8] = 10,
63 [16+AV_CLASS_CATEGORY_NA ] = 7,
64 [16+AV_CLASS_CATEGORY_INPUT ] = 13,
65 [16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
66 [16+AV_CLASS_CATEGORY_MUXER ] = 13,
67 [16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
68 [16+AV_CLASS_CATEGORY_ENCODER ] = 11,
69 [16+AV_CLASS_CATEGORY_DECODER ] = 3,
70 [16+AV_CLASS_CATEGORY_FILTER ] = 10,
71 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
72 [16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
73 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
74 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 13,
75 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 5,
76 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 13,
77 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 5,
78 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 13,
79 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 5,
82 static int16_t background, attr_orig;
86 static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
87 [AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
88 [AV_LOG_FATAL /8] = 208 << 8 | 0x41,
89 [AV_LOG_ERROR /8] = 196 << 8 | 0x11,
90 [AV_LOG_WARNING/8] = 226 << 8 | 0x03,
91 [AV_LOG_INFO /8] = 253 << 8 | 0x09,
92 [AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
93 [AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
94 [16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
95 [16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
96 [16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
97 [16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
98 [16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
99 [16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
100 [16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
101 [16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
102 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
103 [16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
104 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
105 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 213 << 8 | 0x15,
106 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 207 << 8 | 0x05,
107 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 213 << 8 | 0x15,
108 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 207 << 8 | 0x05,
109 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 213 << 8 | 0x15,
110 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 207 << 8 | 0x05,
114 static int use_color = -1;
116 static void check_color_terminal(void)
118 #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE
119 CONSOLE_SCREEN_BUFFER_INFO con_info;
120 con = GetStdHandle(STD_ERROR_HANDLE);
121 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
122 !getenv("AV_LOG_FORCE_NOCOLOR");
124 GetConsoleScreenBufferInfo(con, &con_info);
125 attr_orig = con_info.wAttributes;
126 background = attr_orig & 0xF0;
129 char *term = getenv("TERM");
130 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
131 (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR"));
132 if ( getenv("AV_LOG_FORCE_256COLOR")
133 || (term && strstr(term, "256color")))
136 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
137 !getenv("AV_LOG_FORCE_NOCOLOR");
141 static void colored_fputs(int level, int tint, const char *str)
148 check_color_terminal();
150 if (level == AV_LOG_INFO/8) local_use_color = 0;
151 else local_use_color = use_color;
153 #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE
155 SetConsoleTextAttribute(con, background | color[level]);
158 SetConsoleTextAttribute(con, attr_orig);
160 if (local_use_color == 1) {
162 "\033[%d;3%dm%s\033[0m",
163 (color[level] >> 4) & 15,
166 } else if (tint && use_color == 256) {
168 "\033[48;5;%dm\033[38;5;%dm%s\033[0m",
169 (color[level] >> 16) & 0xff,
172 } else if (local_use_color == 256) {
174 "\033[48;5;%dm\033[38;5;%dm%s\033[0m",
175 (color[level] >> 16) & 0xff,
176 (color[level] >> 8) & 0xff,
184 const char *av_default_item_name(void *ptr)
186 return (*(AVClass **) ptr)->class_name;
189 AVClassCategory av_default_get_category(void *ptr)
191 return (*(AVClass **) ptr)->category;
194 static void sanitize(uint8_t *line){
196 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
202 static int get_category(void *ptr){
203 AVClass *avc = *(AVClass **) ptr;
205 || (avc->version&0xFF)<100
206 || avc->version < (51 << 16 | 59 << 8)
207 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
209 if(avc->get_category)
210 return avc->get_category(ptr) + 16;
212 return avc->category + 16;
215 static const char *get_level_str(int level)
239 static void format_line(void *avcl, int level, const char *fmt, va_list vl,
240 AVBPrint part[4], int *print_prefix, int type[2])
242 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
243 av_bprint_init(part+0, 0, 1);
244 av_bprint_init(part+1, 0, 1);
245 av_bprint_init(part+2, 0, 1);
246 av_bprint_init(part+3, 0, 65536);
248 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
249 if (*print_prefix && avc) {
250 if (avc->parent_log_context_offset) {
251 AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
252 avc->parent_log_context_offset);
253 if (parent && *parent) {
254 av_bprintf(part+0, "[%s @ %p] ",
255 (*parent)->item_name(parent), parent);
256 if(type) type[0] = get_category(parent);
259 av_bprintf(part+1, "[%s @ %p] ",
260 avc->item_name(avcl), avcl);
261 if(type) type[1] = get_category(avcl);
263 if (flags & AV_LOG_PRINT_LEVEL)
264 av_bprintf(part+2, "[%s] ", get_level_str(level));
267 av_vbprintf(part+3, fmt, vl);
269 if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
270 char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
271 *print_prefix = lastc == '\n' || lastc == '\r';
275 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
276 char *line, int line_size, int *print_prefix)
279 format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
280 snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
281 av_bprint_finalize(part+3, NULL);
284 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
286 static int print_prefix = 1;
288 static char prev[LINE_SZ];
296 tint = level & 0xff00;
300 if (level > av_log_level)
303 pthread_mutex_lock(&mutex);
306 format_line(ptr, level, fmt, vl, part, &print_prefix, type);
307 snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
311 is_atty = isatty(2) ? 1 : -1;
314 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
315 *line && line[strlen(line) - 1] != '\r'){
318 fprintf(stderr, " Last message repeated %d times\r", count);
322 fprintf(stderr, " Last message repeated %d times\n", count);
326 sanitize(part[0].str);
327 colored_fputs(type[0], 0, part[0].str);
328 sanitize(part[1].str);
329 colored_fputs(type[1], 0, part[1].str);
330 sanitize(part[2].str);
331 colored_fputs(av_clip(level >> 3, 0, 6), tint >> 8, part[2].str);
332 sanitize(part[3].str);
333 colored_fputs(av_clip(level >> 3, 0, 6), tint >> 8, part[3].str);
335 av_bprint_finalize(part+3, NULL);
337 pthread_mutex_unlock(&mutex);
341 static void (*av_log_callback)(void*, int, const char*, va_list) =
342 av_log_default_callback;
344 void av_log(void* avcl, int level, const char *fmt, ...)
346 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
349 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
350 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
351 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
352 av_vlog(avcl, level, fmt, vl);
356 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
358 void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
360 log_callback(avcl, level, fmt, vl);
363 int av_log_get_level(void)
368 void av_log_set_level(int level)
370 av_log_level = level;
373 void av_log_set_flags(int arg)
378 int av_log_get_flags(void)
383 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
385 av_log_callback = callback;
388 static void missing_feature_sample(int sample, void *avc, const char *msg,
389 va_list argument_list)
391 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
392 av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
393 "version to the newest one from Git. If the problem still "
394 "occurs, it means that your file has a feature which has not "
395 "been implemented.\n");
397 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
398 "of this file to ftp://upload.ffmpeg.org/incoming/ "
399 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
402 void avpriv_request_sample(void *avc, const char *msg, ...)
404 va_list argument_list;
406 va_start(argument_list, msg);
407 missing_feature_sample(1, avc, msg, argument_list);
408 va_end(argument_list);
411 void avpriv_report_missing_feature(void *avc, const char *msg, ...)
413 va_list argument_list;
415 va_start(argument_list, msg);
416 missing_feature_sample(0, avc, msg, argument_list);
417 va_end(argument_list);
424 int main(int argc, char **argv)
427 av_log_set_level(AV_LOG_DEBUG);
428 for (use_color=0; use_color<=256; use_color = 255*use_color+1) {
429 av_log(NULL, AV_LOG_FATAL, "use_color: %d\n", use_color);
430 for (i = AV_LOG_DEBUG; i>=AV_LOG_QUIET; i-=8) {
431 av_log(NULL, i, " %d", i);
432 av_log(NULL, AV_LOG_INFO, "e ");
433 av_log(NULL, i + 256*123, "C%d", i);
434 av_log(NULL, AV_LOG_INFO, "e");
436 av_log(NULL, AV_LOG_PANIC, "\n");