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 #if HAVE_VALGRIND_VALGRIND_H
51 #include <valgrind/valgrind.h>
52 /* this is the log level at which valgrind will output a full backtrace */
53 #define BACKTRACE_LOGLEVEL AV_LOG_ERROR
56 static int av_log_level = AV_LOG_INFO;
60 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
62 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
63 [AV_LOG_PANIC /8] = 12,
64 [AV_LOG_FATAL /8] = 12,
65 [AV_LOG_ERROR /8] = 12,
66 [AV_LOG_WARNING/8] = 14,
68 [AV_LOG_VERBOSE/8] = 10,
69 [AV_LOG_DEBUG /8] = 10,
70 [AV_LOG_TRACE /8] = 8,
71 [16+AV_CLASS_CATEGORY_NA ] = 7,
72 [16+AV_CLASS_CATEGORY_INPUT ] = 13,
73 [16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
74 [16+AV_CLASS_CATEGORY_MUXER ] = 13,
75 [16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
76 [16+AV_CLASS_CATEGORY_ENCODER ] = 11,
77 [16+AV_CLASS_CATEGORY_DECODER ] = 3,
78 [16+AV_CLASS_CATEGORY_FILTER ] = 10,
79 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
80 [16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
81 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
82 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 13,
83 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 5,
84 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 13,
85 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 5,
86 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 13,
87 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 5,
90 static int16_t background, attr_orig;
94 static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
95 [AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
96 [AV_LOG_FATAL /8] = 208 << 8 | 0x41,
97 [AV_LOG_ERROR /8] = 196 << 8 | 0x11,
98 [AV_LOG_WARNING/8] = 226 << 8 | 0x03,
99 [AV_LOG_INFO /8] = 253 << 8 | 0x09,
100 [AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
101 [AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
102 [AV_LOG_TRACE /8] = 34 << 8 | 0x07,
103 [16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
104 [16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
105 [16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
106 [16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
107 [16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
108 [16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
109 [16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
110 [16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
111 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
112 [16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
113 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
114 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 213 << 8 | 0x15,
115 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 207 << 8 | 0x05,
116 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 213 << 8 | 0x15,
117 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 207 << 8 | 0x05,
118 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 213 << 8 | 0x15,
119 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 207 << 8 | 0x05,
123 static int use_color = -1;
125 static void check_color_terminal(void)
127 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
128 CONSOLE_SCREEN_BUFFER_INFO con_info;
129 con = GetStdHandle(STD_ERROR_HANDLE);
130 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
131 !getenv("AV_LOG_FORCE_NOCOLOR");
133 GetConsoleScreenBufferInfo(con, &con_info);
134 attr_orig = con_info.wAttributes;
135 background = attr_orig & 0xF0;
138 char *term = getenv("TERM");
139 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
140 (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR"));
141 if ( getenv("AV_LOG_FORCE_256COLOR")
142 || (term && strstr(term, "256color")))
145 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
146 !getenv("AV_LOG_FORCE_NOCOLOR");
150 static void colored_fputs(int level, int tint, const char *str)
157 check_color_terminal();
159 if (level == AV_LOG_INFO/8) local_use_color = 0;
160 else local_use_color = use_color;
162 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
164 SetConsoleTextAttribute(con, background | color[level]);
167 SetConsoleTextAttribute(con, attr_orig);
169 if (local_use_color == 1) {
171 "\033[%"PRIu32";3%"PRIu32"m%s\033[0m",
172 (color[level] >> 4) & 15,
175 } else if (tint && use_color == 256) {
177 "\033[48;5;%"PRIu32"m\033[38;5;%dm%s\033[0m",
178 (color[level] >> 16) & 0xff,
181 } else if (local_use_color == 256) {
183 "\033[48;5;%"PRIu32"m\033[38;5;%"PRIu32"m%s\033[0m",
184 (color[level] >> 16) & 0xff,
185 (color[level] >> 8) & 0xff,
193 const char *av_default_item_name(void *ptr)
195 return (*(AVClass **) ptr)->class_name;
198 AVClassCategory av_default_get_category(void *ptr)
200 return (*(AVClass **) ptr)->category;
203 static void sanitize(uint8_t *line){
205 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
211 static int get_category(void *ptr){
212 AVClass *avc = *(AVClass **) ptr;
214 || (avc->version&0xFF)<100
215 || avc->version < (51 << 16 | 59 << 8)
216 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
218 if(avc->get_category)
219 return avc->get_category(ptr) + 16;
221 return avc->category + 16;
224 static const char *get_level_str(int level)
248 static void format_line(void *avcl, int level, const char *fmt, va_list vl,
249 AVBPrint part[4], int *print_prefix, int type[2])
251 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
252 av_bprint_init(part+0, 0, 1);
253 av_bprint_init(part+1, 0, 1);
254 av_bprint_init(part+2, 0, 1);
255 av_bprint_init(part+3, 0, 65536);
257 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
258 if (*print_prefix && avc) {
259 if (avc->parent_log_context_offset) {
260 AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
261 avc->parent_log_context_offset);
262 if (parent && *parent) {
263 av_bprintf(part+0, "[%s @ %p] ",
264 (*parent)->item_name(parent), parent);
265 if(type) type[0] = get_category(parent);
268 av_bprintf(part+1, "[%s @ %p] ",
269 avc->item_name(avcl), avcl);
270 if(type) type[1] = get_category(avcl);
272 if (flags & AV_LOG_PRINT_LEVEL)
273 av_bprintf(part+2, "[%s] ", get_level_str(level));
276 av_vbprintf(part+3, fmt, vl);
278 if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
279 char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
280 *print_prefix = lastc == '\n' || lastc == '\r';
284 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
285 char *line, int line_size, int *print_prefix)
287 av_log_format_line2(ptr, level, fmt, vl, line, line_size, print_prefix);
290 int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
291 char *line, int line_size, int *print_prefix)
296 format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
297 ret = snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
298 av_bprint_finalize(part+3, NULL);
302 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
304 static int print_prefix = 1;
306 static char prev[LINE_SZ];
314 tint = level & 0xff00;
318 if (level > av_log_level)
321 pthread_mutex_lock(&mutex);
324 format_line(ptr, level, fmt, vl, part, &print_prefix, type);
325 snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
329 is_atty = isatty(2) ? 1 : -1;
332 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
333 *line && line[strlen(line) - 1] != '\r'){
336 fprintf(stderr, " Last message repeated %d times\r", count);
340 fprintf(stderr, " Last message repeated %d times\n", count);
344 sanitize(part[0].str);
345 colored_fputs(type[0], 0, part[0].str);
346 sanitize(part[1].str);
347 colored_fputs(type[1], 0, part[1].str);
348 sanitize(part[2].str);
349 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
350 sanitize(part[3].str);
351 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
353 #if CONFIG_VALGRIND_BACKTRACE
354 if (level <= BACKTRACE_LOGLEVEL)
355 VALGRIND_PRINTF_BACKTRACE("%s", "");
358 av_bprint_finalize(part+3, NULL);
360 pthread_mutex_unlock(&mutex);
364 static void (*av_log_callback)(void*, int, const char*, va_list) =
365 av_log_default_callback;
367 void av_log(void* avcl, int level, const char *fmt, ...)
369 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
372 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
373 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
374 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
375 av_vlog(avcl, level, fmt, vl);
379 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
381 void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
383 log_callback(avcl, level, fmt, vl);
386 int av_log_get_level(void)
391 void av_log_set_level(int level)
393 av_log_level = level;
396 void av_log_set_flags(int arg)
401 int av_log_get_flags(void)
406 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
408 av_log_callback = callback;
411 static void missing_feature_sample(int sample, void *avc, const char *msg,
412 va_list argument_list)
414 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
415 av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
416 "version to the newest one from Git. If the problem still "
417 "occurs, it means that your file has a feature which has not "
418 "been implemented.\n");
420 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
421 "of this file to ftp://upload.ffmpeg.org/incoming/ "
422 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
425 void avpriv_request_sample(void *avc, const char *msg, ...)
427 va_list argument_list;
429 va_start(argument_list, msg);
430 missing_feature_sample(1, avc, msg, argument_list);
431 va_end(argument_list);
434 void avpriv_report_missing_feature(void *avc, const char *msg, ...)
436 va_list argument_list;
438 va_start(argument_list, msg);
439 missing_feature_sample(0, avc, msg, argument_list);
440 va_end(argument_list);