1 /*
2 * log functions
3 * Copyright (c) 2003 Michel Bardiaux
4 *
5 * This file is part of FFmpeg.
6 *
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.
11 *
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.
16 *
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
20 */
21
22 /**
23 * @file
24 * logging functions
25 */
26
28
29 #if HAVE_UNISTD_H
30 #include <unistd.h>
31 #endif
32 #if HAVE_IO_H
33 #include <io.h>
34 #endif
35 #include <stdarg.h>
36 #include <stdlib.h>
43
45
47
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
52 #endif
53
56
58 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
59 #include <windows.h>
86 };
87
88 static int16_t background, attr_orig;
90 #else
91
118 };
119
120 #endif
122
124 {
125 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
126 CONSOLE_SCREEN_BUFFER_INFO con_info;
127 con = GetStdHandle(STD_ERROR_HANDLE);
129 !getenv("AV_LOG_FORCE_NOCOLOR");
131 GetConsoleScreenBufferInfo(con, &con_info);
132 attr_orig = con_info.wAttributes;
133 background = attr_orig & 0xF0;
134 }
135 #elif HAVE_ISATTY
136 char *term = getenv("TERM");
137 use_color = !getenv(
"NO_COLOR") && !getenv(
"AV_LOG_FORCE_NOCOLOR") &&
138 (getenv(
"TERM") &&
isatty(2) || getenv(
"AV_LOG_FORCE_COLOR"));
139 if ( getenv("AV_LOG_FORCE_256COLOR")
140 || (term && strstr(term, "256color")))
142 #else
143 use_color = getenv(
"AV_LOG_FORCE_COLOR") && !getenv(
"NO_COLOR") &&
144 !getenv("AV_LOG_FORCE_NOCOLOR");
145 #endif
146 }
147
149 {
150 int local_use_color;
151 if (!*str)
152 return;
153
156
159
160 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
161 if (local_use_color)
162 SetConsoleTextAttribute(con, background |
color[level]);
163 fputs(str, stderr);
164 if (local_use_color)
165 SetConsoleTextAttribute(con, attr_orig);
166 #else
167 if (local_use_color == 1) {
168 fprintf(stderr,
169 "033円[%"PRIu32";3%"PRIu32"m%s033円[0m",
170 (
color[level] >> 4) & 15,
172 str);
174 fprintf(stderr,
175 "033円[48;5;%"PRIu32"m033円[38;5;%dm%s033円[0m",
176 (
color[level] >> 16) & 0xff,
177 tint,
178 str);
179 } else if (local_use_color == 256) {
180 fprintf(stderr,
181 "033円[48;5;%"PRIu32"m033円[38;5;%"PRIu32"m%s033円[0m",
182 (
color[level] >> 16) & 0xff,
183 (
color[level] >> 8) & 0xff,
184 str);
185 } else
186 fputs(str, stderr);
187 #endif
188
189 }
190
192 {
193 return (*(
AVClass **) ptr)->class_name;
194 }
195
197 {
198 return (*(
AVClass **) ptr)->category;
199 }
200
202 while(*line){
203 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
204 *line='?';
205 line++;
206 }
207 }
208
211 if( !avc
213 || avc->
version < (51 << 16 | 59 << 8)
215
218
220 }
221
223 {
224 switch (level) {
226 return "quiet";
228 return "debug";
230 return "verbose";
232 return "info";
234 return "warning";
236 return "error";
238 return "fatal";
240 return "panic";
241 default:
242 return "";
243 }
244 }
245
247 AVBPrint part[4],
int *print_prefix,
int type[2])
248 {
254
256 if (*print_prefix && avc) {
260 if (parent && *parent) {
262 (*parent)->item_name(parent), parent);
264 }
265 }
269 }
270
273
275
276 if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
277 char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
278 *print_prefix = lastc == '\n' || lastc == '\r';
279 }
280 }
281
283 char *
line,
int line_size,
int *print_prefix)
284 {
286 }
287
289 char *
line,
int line_size,
int *print_prefix)
290 {
291 AVBPrint part[4];
292 int ret;
293
295 ret =
snprintf(line, line_size,
"%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
297 return ret;
298 }
299
301 {
302 static int print_prefix = 1;
305 AVBPrint part[4];
307 static int is_atty;
309 unsigned tint = 0;
310
311 if (level >= 0) {
312 tint = level & 0xff00;
313 level &= 0xff;
314 }
315
317 return;
319
320 format_line(ptr, level, fmt, vl, part, &print_prefix, type);
321 snprintf(line,
sizeof(line),
"%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
322
323 #if HAVE_ISATTY
324 if (!is_atty)
325 is_atty =
isatty(2) ? 1 : -1;
326 #endif
327
329 *line && line[strlen(line) - 1] != '\r'){
330 count++;
331 if (is_atty == 1)
332 fprintf(stderr, " Last message repeated %d times\r", count);
334 }
335 if (count > 0) {
336 fprintf(stderr, " Last message repeated %d times\n", count);
337 count = 0;
338 }
339 strcpy(prev, line);
348
349 #if CONFIG_VALGRIND_BACKTRACE
350 if (level <= BACKTRACE_LOGLEVEL)
351 VALGRIND_PRINTF_BACKTRACE("%s", "");
352 #endif
356 }
357
360
362 {
364 va_list vl;
365 va_start(vl, fmt);
366 if (avc && avc->
version >= (50 << 16 | 15 << 8 | 2) &&
370 va_end(vl);
371 }
372
374 {
378 }
379
381 {
383 }
384
386 {
388 }
389
391 {
393 }
394
396 {
398 }
399
401 {
403 }
404
406 va_list argument_list)
407 {
410 "version to the newest one from Git. If the problem still "
411 "occurs, it means that your file has a feature which has not "
412 "been implemented.\n");
413 if (sample)
415 "of this file to ftp://upload.ffmpeg.org/incoming/ "
416 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
417 }
418
420 {
421 va_list argument_list;
422
423 va_start(argument_list, msg);
425 va_end(argument_list);
426 }
427
429 {
430 va_list argument_list;
431
432 va_start(argument_list, msg);
434 va_end(argument_list);
435 }
void av_bprintf(AVBPrint *buf, const char *fmt,...)
static const char * get_level_str(int level)
#define AV_LOG_WARNING
Something somehow does not look correct.
void av_log_set_level(int level)
Set the log level.
static int ff_mutex_lock(AVMutex *mutex)
static void log_callback(void *ptr, int level, const char *fmt, va_list vl)
const char * av_default_item_name(void *ptr)
Return the context name.
Convenience header that includes libavutil's core.
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
#define AV_LOG_QUIET
Print no output.
static void missing_feature_sample(int sample, void *avc, const char *msg, va_list argument_list)
#define AV_LOG_PANIC
Something went really wrong and we will crash now.
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
static av_cold int end(AVCodecContext *avctx)
int log_level_offset_offset
Offset in the structure where log_level_offset is stored.
static void sanitize(uint8_t *line)
#define AV_LOG_VERBOSE
Detailed information.
static int get_category(void *ptr)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl, char *line, int line_size, int *print_prefix)
Format a line of log the same way as the default callback.
static void format_line(void *avcl, int level, const char *fmt, va_list vl, AVBPrint part[4], int *print_prefix, int type[2])
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define AV_LOG_SKIP_REPEATED
Skip repeated messages, this requires the user app to use av_log() instead of (f)printf as the 2 woul...
void av_log(void *avcl, int level, const char *fmt,...)
int av_log_get_level(void)
Get the current log level.
AVClassCategory category
Category used for visualization (like color) This is only set if the category is equal for all object...
void av_log_default_callback(void *ptr, int level, const char *fmt, va_list vl)
Default logging callback.
static int ff_mutex_unlock(AVMutex *mutex)
int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl, char *line, int line_size, int *print_prefix)
Format a line of log the same way as the default callback.
common internal API header
static void check_color_terminal(void)
void avpriv_report_missing_feature(void *avc, const char *msg,...)
static void callback(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time, enum dshowDeviceType devtype)
#define AV_MUTEX_INITIALIZER
void av_log_set_callback(void(*callback)(void *, int, const char *, va_list))
Set the logging callback.
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
static void(* av_log_callback)(void *, int, const char *, va_list)
AVClassCategory(* get_category)(void *ctx)
Callback to return the category.
const char *(* item_name)(void *ctx)
A pointer to a function which returns the name of a context instance ctx associated with the class...
#define AV_LOG_INFO
Standard information.
int av_log_get_flags(void)
void av_vbprintf(AVBPrint *buf, const char *fmt, va_list vl_arg)
Append a formatted string to a print buffer.
Describe the class of an AVClass context structure.
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level...
int version
LIBAVUTIL_VERSION with which this structure was created.
common internal and external API header
int parent_log_context_offset
Offset in the structure where a pointer to the parent context for logging is stored.
AVClassCategory av_default_get_category(void *ptr)
void avpriv_request_sample(void *avc, const char *msg,...)
void av_log_set_flags(int arg)
#define AV_LOG_PRINT_LEVEL
Include the log severity in messages originating from codecs.
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
#define INVALID_HANDLE_VALUE
static void colored_fputs(int level, int tint, const char *str)