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
44 static AVMutex mutex = AV_MUTEX_INITIALIZER;
48 #if HAVE_VALGRIND_VALGRIND_H
49 #include <valgrind/valgrind.h>
50 /* this is the log level at which valgrind will output a full backtrace */
51 #define BACKTRACE_LOGLEVEL AV_LOG_ERROR
54 static int av_log_level = AV_LOG_INFO;
58 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
60 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
61 [AV_LOG_PANIC /8] = 12,
62 [AV_LOG_FATAL /8] = 12,
63 [AV_LOG_ERROR /8] = 12,
64 [AV_LOG_WARNING/8] = 14,
66 [AV_LOG_VERBOSE/8] = 10,
67 [AV_LOG_DEBUG /8] = 10,
68 [AV_LOG_TRACE /8] = 8,
69 [16+AV_CLASS_CATEGORY_NA ] = 7,
70 [16+AV_CLASS_CATEGORY_INPUT ] = 13,
71 [16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
72 [16+AV_CLASS_CATEGORY_MUXER ] = 13,
73 [16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
74 [16+AV_CLASS_CATEGORY_ENCODER ] = 11,
75 [16+AV_CLASS_CATEGORY_DECODER ] = 3,
76 [16+AV_CLASS_CATEGORY_FILTER ] = 10,
77 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
78 [16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
79 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
80 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 13,
81 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 5,
82 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 13,
83 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 5,
84 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 13,
85 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 5,
88 static int16_t background, attr_orig;
92 static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
93 [AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
94 [AV_LOG_FATAL /8] = 208 << 8 | 0x41,
95 [AV_LOG_ERROR /8] = 196 << 8 | 0x11,
96 [AV_LOG_WARNING/8] = 226 << 8 | 0x03,
97 [AV_LOG_INFO /8] = 253 << 8 | 0x09,
98 [AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
99 [AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
100 [AV_LOG_TRACE /8] = 34 << 8 | 0x07,
101 [16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
102 [16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
103 [16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
104 [16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
105 [16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
106 [16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
107 [16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
108 [16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
109 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
110 [16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
111 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
112 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 213 << 8 | 0x15,
113 [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 207 << 8 | 0x05,
114 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 213 << 8 | 0x15,
115 [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 207 << 8 | 0x05,
116 [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 213 << 8 | 0x15,
117 [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 207 << 8 | 0x05,
121 static int use_color = -1;
123 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
124 static void win_console_puts(const char *str)
126 const uint8_t *q = str;
127 uint16_t line[LINE_SZ];
130 uint16_t *buf = line;
134 while (*q && nb_chars < LINE_SZ - 1) {
138 GET_UTF8(ch, *q ? *q++ : 0, ch = 0xfffd; goto continue_on_invalid;)
140 PUT_UTF16(ch, tmp, *buf++ = tmp; nb_chars++;)
143 WriteConsoleW(con, line, nb_chars, &written, NULL);
148 static void check_color_terminal(void)
150 char *term = getenv("TERM");
152 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
153 CONSOLE_SCREEN_BUFFER_INFO con_info;
155 con = GetStdHandle(STD_ERROR_HANDLE);
156 if (con != INVALID_HANDLE_VALUE && !GetConsoleMode(con, &dummy))
157 con = INVALID_HANDLE_VALUE;
158 if (con != INVALID_HANDLE_VALUE) {
159 GetConsoleScreenBufferInfo(con, &con_info);
160 attr_orig = con_info.wAttributes;
161 background = attr_orig & 0xF0;
165 if (getenv("AV_LOG_FORCE_NOCOLOR")) {
167 } else if (getenv("AV_LOG_FORCE_COLOR")) {
170 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
171 use_color = (con != INVALID_HANDLE_VALUE);
173 use_color = (term && isatty(2));
179 if (getenv("AV_LOG_FORCE_256COLOR") || term && strstr(term, "256color"))
183 static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
185 if (local_use_color == 1) {
187 "\033[%"PRIu32";3%"PRIu32"m%s\033[0m",
188 (color[level] >> 4) & 15,
191 } else if (tint && use_color == 256) {
193 "\033[48;5;%"PRIu32"m\033[38;5;%dm%s\033[0m",
194 (color[level] >> 16) & 0xff,
197 } else if (local_use_color == 256) {
199 "\033[48;5;%"PRIu32"m\033[38;5;%"PRIu32"m%s\033[0m",
200 (color[level] >> 16) & 0xff,
201 (color[level] >> 8) & 0xff,
207 static void colored_fputs(int level, int tint, const char *str)
214 check_color_terminal();
216 if (level == AV_LOG_INFO/8) local_use_color = 0;
217 else local_use_color = use_color;
219 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
220 if (con != INVALID_HANDLE_VALUE) {
222 SetConsoleTextAttribute(con, background | color[level]);
223 win_console_puts(str);
225 SetConsoleTextAttribute(con, attr_orig);
227 ansi_fputs(level, tint, str, local_use_color);
230 ansi_fputs(level, tint, str, local_use_color);
235 const char *av_default_item_name(void *ptr)
237 return (*(AVClass **) ptr)->class_name;
240 AVClassCategory av_default_get_category(void *ptr)
242 return (*(AVClass **) ptr)->category;
245 static void sanitize(uint8_t *line){
247 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
253 static int get_category(void *ptr){
254 AVClass *avc = *(AVClass **) ptr;
256 || (avc->version&0xFF)<100
257 || avc->version < (51 << 16 | 59 << 8)
258 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
260 if(avc->get_category)
261 return avc->get_category(ptr) + 16;
263 return avc->category + 16;
266 static const char *get_level_str(int level)
292 static void format_line(void *avcl, int level, const char *fmt, va_list vl,
293 AVBPrint part[4], int *print_prefix, int type[2])
295 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
296 av_bprint_init(part+0, 0, AV_BPRINT_SIZE_AUTOMATIC);
297 av_bprint_init(part+1, 0, AV_BPRINT_SIZE_AUTOMATIC);
298 av_bprint_init(part+2, 0, AV_BPRINT_SIZE_AUTOMATIC);
299 av_bprint_init(part+3, 0, 65536);
301 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
302 if (*print_prefix && avc) {
303 if (avc->parent_log_context_offset) {
304 AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
305 avc->parent_log_context_offset);
306 if (parent && *parent) {
307 av_bprintf(part+0, "[%s @ %p] ",
308 (*parent)->item_name(parent), parent);
309 if(type) type[0] = get_category(parent);
312 av_bprintf(part+1, "[%s @ %p] ",
313 avc->item_name(avcl), avcl);
314 if(type) type[1] = get_category(avcl);
317 if (*print_prefix && (level > AV_LOG_QUIET) && (flags & AV_LOG_PRINT_LEVEL))
318 av_bprintf(part+2, "[%s] ", get_level_str(level));
320 av_vbprintf(part+3, fmt, vl);
322 if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
323 char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
324 *print_prefix = lastc == '\n' || lastc == '\r';
328 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
329 char *line, int line_size, int *print_prefix)
331 av_log_format_line2(ptr, level, fmt, vl, line, line_size, print_prefix);
334 int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
335 char *line, int line_size, int *print_prefix)
340 format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
341 ret = snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
342 av_bprint_finalize(part+3, NULL);
346 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
348 static int print_prefix = 1;
350 static char prev[LINE_SZ];
358 tint = level & 0xff00;
362 if (level > av_log_level)
364 ff_mutex_lock(&mutex);
366 format_line(ptr, level, fmt, vl, part, &print_prefix, type);
367 snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
371 is_atty = isatty(2) ? 1 : -1;
374 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
375 *line && line[strlen(line) - 1] != '\r'){
378 fprintf(stderr, " Last message repeated %d times\r", count);
382 fprintf(stderr, " Last message repeated %d times\n", count);
386 sanitize(part[0].str);
387 colored_fputs(type[0], 0, part[0].str);
388 sanitize(part[1].str);
389 colored_fputs(type[1], 0, part[1].str);
390 sanitize(part[2].str);
391 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
392 sanitize(part[3].str);
393 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
395 #if CONFIG_VALGRIND_BACKTRACE
396 if (level <= BACKTRACE_LOGLEVEL)
397 VALGRIND_PRINTF_BACKTRACE("%s", "");
400 av_bprint_finalize(part+3, NULL);
401 ff_mutex_unlock(&mutex);
404 static void (*av_log_callback)(void*, int, const char*, va_list) =
405 av_log_default_callback;
407 void av_log(void* avcl, int level, const char *fmt, ...)
411 av_vlog(avcl, level, fmt, vl);
415 void av_log_once(void* avcl, int initial_level, int subsequent_level, int *state, const char *fmt, ...)
419 av_vlog(avcl, *state ? subsequent_level : initial_level, fmt, vl);
424 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
426 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
427 void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
428 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
429 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
430 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
432 log_callback(avcl, level, fmt, vl);
435 int av_log_get_level(void)
440 void av_log_set_level(int level)
442 av_log_level = level;
445 void av_log_set_flags(int arg)
450 int av_log_get_flags(void)
455 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
457 av_log_callback = callback;
460 static void missing_feature_sample(int sample, void *avc, const char *msg,
461 va_list argument_list)
463 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
464 av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
465 "version to the newest one from Git. If the problem still "
466 "occurs, it means that your file has a feature which has not "
467 "been implemented.\n");
469 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
470 "of this file to https://streams.videolan.org/upload/ "
471 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
474 void avpriv_request_sample(void *avc, const char *msg, ...)
476 va_list argument_list;
478 va_start(argument_list, msg);
479 missing_feature_sample(1, avc, msg, argument_list);
480 va_end(argument_list);
483 void avpriv_report_missing_feature(void *avc, const char *msg, ...)
485 va_list argument_list;
487 va_start(argument_list, msg);
488 missing_feature_sample(0, avc, msg, argument_list);
489 va_end(argument_list);