FFmpeg
log.c
Go to the documentation of this file.
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 
27 #include "config.h"
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 <inttypes.h>
36 #include <stdarg.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include "bprint.h"
41 #include "common.h"
42 #include "internal.h"
43 #include "log.h"
44 #include "thread.h"
45 
47 
48 #define LINE_SZ 1024
49 
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
54 #endif
55 
57 static int flags;
58 
59 #define NB_LEVELS 8
60 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
61 #include <windows.h>
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,
67  [AV_LOG_INFO /8] = 7,
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,
88 };
89 
90 static int16_t background, attr_orig;
91 static HANDLE con;
92 #else
93 
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,
120 };
121 
122 #endif
123 static int use_color = -1;
124 
125 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
126 static void win_console_puts(const char *str)
127 {
128  const uint8_t *q = str;
129  uint16_t line[LINE_SZ];
130 
131  while (*q) {
132  uint16_t *buf = line;
133  DWORD nb_chars = 0;
134  DWORD written;
135 
136  while (*q && nb_chars < LINE_SZ - 1) {
137  uint32_t ch;
138  uint16_t tmp;
139 
140  GET_UTF8(ch, *q ? *q++ : 0, ch = 0xfffd; goto continue_on_invalid;)
141 continue_on_invalid:
142  PUT_UTF16(ch, tmp, *buf++ = tmp; nb_chars++;)
143  }
144 
145  WriteConsoleW(con, line, nb_chars, &written, NULL);
146  }
147 }
148 #endif
149 
150 static void check_color_terminal(void)
151 {
152  char *term = getenv("TERM");
153 
154 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
155  CONSOLE_SCREEN_BUFFER_INFO con_info;
156  DWORD dummy;
157  con = GetStdHandle(STD_ERROR_HANDLE);
158  if (con != INVALID_HANDLE_VALUE && !GetConsoleMode(con, &dummy))
159  con = INVALID_HANDLE_VALUE;
160  if (con != INVALID_HANDLE_VALUE) {
161  GetConsoleScreenBufferInfo(con, &con_info);
162  attr_orig = con_info.wAttributes;
163  background = attr_orig & 0xF0;
164  }
165 #endif
166 
167  if (getenv("AV_LOG_FORCE_NOCOLOR")) {
168  use_color = 0;
169  } else if (getenv("AV_LOG_FORCE_COLOR")) {
170  use_color = 1;
171  } else {
172 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
173  use_color = (con != INVALID_HANDLE_VALUE);
174 #elif HAVE_ISATTY
175  use_color = (term && isatty(2));
176 #else
177  use_color = 0;
178 #endif
179  }
180 
181  if (getenv("AV_LOG_FORCE_256COLOR") || term && strstr(term, "256color"))
182  use_color *= 256;
183 }
184 
185 static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
186 {
187  if (local_use_color == 1) {
188  fprintf(stderr,
189  "\033[%"PRIu32";3%"PRIu32"m%s\033[0m",
190  (color[level] >> 4) & 15,
191  color[level] & 15,
192  str);
193  } else if (tint && use_color == 256) {
194  fprintf(stderr,
195  "\033[48;5;%"PRIu32"m\033[38;5;%dm%s\033[0m",
196  (color[level] >> 16) & 0xff,
197  tint,
198  str);
199  } else if (local_use_color == 256) {
200  fprintf(stderr,
201  "\033[48;5;%"PRIu32"m\033[38;5;%"PRIu32"m%s\033[0m",
202  (color[level] >> 16) & 0xff,
203  (color[level] >> 8) & 0xff,
204  str);
205  } else
206  fputs(str, stderr);
207 }
208 
209 static void colored_fputs(int level, int tint, const char *str)
210 {
211  int local_use_color;
212  if (!*str)
213  return;
214 
215  if (use_color < 0)
217 
218  if (level == AV_LOG_INFO/8) local_use_color = 0;
219  else local_use_color = use_color;
220 
221 #if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
222  if (con != INVALID_HANDLE_VALUE) {
223  if (local_use_color)
224  SetConsoleTextAttribute(con, background | color[level]);
225  win_console_puts(str);
226  if (local_use_color)
227  SetConsoleTextAttribute(con, attr_orig);
228  } else {
229  ansi_fputs(level, tint, str, local_use_color);
230  }
231 #else
232  ansi_fputs(level, tint, str, local_use_color);
233 #endif
234 
235 }
236 
237 const char *av_default_item_name(void *ptr)
238 {
239  return (*(AVClass **) ptr)->class_name;
240 }
241 
243 {
244  return (*(AVClass **) ptr)->category;
245 }
246 
247 static void sanitize(uint8_t *line){
248  while(*line){
249  if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
250  *line='?';
251  line++;
252  }
253 }
254 
255 static int get_category(void *ptr){
256  AVClass *avc = *(AVClass **) ptr;
257  if( !avc
258  || (avc->version&0xFF)<100
259  || avc->version < (51 << 16 | 59 << 8)
260  || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
261 
262  if(avc->get_category)
263  return avc->get_category(ptr) + 16;
264 
265  return avc->category + 16;
266 }
267 
268 static const char *get_level_str(int level)
269 {
270  switch (level) {
271  case AV_LOG_QUIET:
272  return "quiet";
273  case AV_LOG_DEBUG:
274  return "debug";
275  case AV_LOG_TRACE:
276  return "trace";
277  case AV_LOG_VERBOSE:
278  return "verbose";
279  case AV_LOG_INFO:
280  return "info";
281  case AV_LOG_WARNING:
282  return "warning";
283  case AV_LOG_ERROR:
284  return "error";
285  case AV_LOG_FATAL:
286  return "fatal";
287  case AV_LOG_PANIC:
288  return "panic";
289  default:
290  return "";
291  }
292 }
293 
294 static void format_line(void *avcl, int level, const char *fmt, va_list vl,
295  AVBPrint part[4], int *print_prefix, int type[2])
296 {
297  AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
301  av_bprint_init(part+3, 0, 65536);
302 
303  if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
304  if (*print_prefix && avc) {
305  if (avc->parent_log_context_offset) {
306  AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
308  if (parent && *parent) {
309  av_bprintf(part+0, "[%s @ %p] ",
310  (*parent)->item_name(parent), parent);
311  if(type) type[0] = get_category(parent);
312  }
313  }
314  av_bprintf(part+1, "[%s @ %p] ",
315  avc->item_name(avcl), avcl);
316  if(type) type[1] = get_category(avcl);
317  }
318 
319  if (*print_prefix && (level > AV_LOG_QUIET) && (flags & AV_LOG_PRINT_LEVEL))
320  av_bprintf(part+2, "[%s] ", get_level_str(level));
321 
322  av_vbprintf(part+3, fmt, vl);
323 
324  if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
325  char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
326  *print_prefix = lastc == '\n' || lastc == '\r';
327  }
328 }
329 
330 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
331  char *line, int line_size, int *print_prefix)
332 {
333  av_log_format_line2(ptr, level, fmt, vl, line, line_size, print_prefix);
334 }
335 
336 int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
337  char *line, int line_size, int *print_prefix)
338 {
339  AVBPrint part[4];
340  int ret;
341 
342  format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
343  ret = snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
344  av_bprint_finalize(part+3, NULL);
345  return ret;
346 }
347 
348 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
349 {
350  static int print_prefix = 1;
351  static int count;
352  static char prev[LINE_SZ];
353  AVBPrint part[4];
354  char line[LINE_SZ];
355  static int is_atty;
356  int type[2];
357  unsigned tint = 0;
358 
359  if (level >= 0) {
360  tint = level & 0xff00;
361  level &= 0xff;
362  }
363 
364  if (level > av_log_level)
365  return;
367 
368  format_line(ptr, level, fmt, vl, part, &print_prefix, type);
369  snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
370 
371 #if HAVE_ISATTY
372  if (!is_atty)
373  is_atty = isatty(2) ? 1 : -1;
374 #endif
375 
376  if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
377  *line && line[strlen(line) - 1] != '\r'){
378  count++;
379  if (is_atty == 1)
380  fprintf(stderr, " Last message repeated %d times\r", count);
381  goto end;
382  }
383  if (count > 0) {
384  fprintf(stderr, " Last message repeated %d times\n", count);
385  count = 0;
386  }
387  strcpy(prev, line);
388  sanitize(part[0].str);
389  colored_fputs(type[0], 0, part[0].str);
390  sanitize(part[1].str);
391  colored_fputs(type[1], 0, part[1].str);
392  sanitize(part[2].str);
393  colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
394  sanitize(part[3].str);
395  colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
396 
397 #if CONFIG_VALGRIND_BACKTRACE
398  if (level <= BACKTRACE_LOGLEVEL)
399  VALGRIND_PRINTF_BACKTRACE("%s", "");
400 #endif
401 end:
402  av_bprint_finalize(part+3, NULL);
404 }
405 
406 static void (*av_log_callback)(void*, int, const char*, va_list) =
408 
409 void av_log(void* avcl, int level, const char *fmt, ...)
410 {
411  va_list vl;
412  va_start(vl, fmt);
413  av_vlog(avcl, level, fmt, vl);
414  va_end(vl);
415 }
416 
417 void av_log_once(void* avcl, int initial_level, int subsequent_level, int *state, const char *fmt, ...)
418 {
419  va_list vl;
420  va_start(vl, fmt);
421  av_vlog(avcl, *state ? subsequent_level : initial_level, fmt, vl);
422  va_end(vl);
423  *state = 1;
424 }
425 
426 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
427 {
428  AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
429  void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
430  if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
432  level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
433  if (log_callback)
434  log_callback(avcl, level, fmt, vl);
435 }
436 
438 {
439  return av_log_level;
440 }
441 
443 {
445 }
446 
448 {
449  flags = arg;
450 }
451 
453 {
454  return flags;
455 }
456 
457 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
458 {
460 }
461 
462 static void missing_feature_sample(int sample, void *avc, const char *msg,
463  va_list argument_list)
464 {
465  av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
466  av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
467  "version to the newest one from Git. If the problem still "
468  "occurs, it means that your file has a feature which has not "
469  "been implemented.\n");
470  if (sample)
471  av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
472  "of this file to https://streams.videolan.org/upload/ "
473  "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
474 }
475 
476 void avpriv_request_sample(void *avc, const char *msg, ...)
477 {
478  va_list argument_list;
479 
480  va_start(argument_list, msg);
481  missing_feature_sample(1, avc, msg, argument_list);
482  va_end(argument_list);
483 }
484 
485 void avpriv_report_missing_feature(void *avc, const char *msg, ...)
486 {
487  va_list argument_list;
488 
489  va_start(argument_list, msg);
490  missing_feature_sample(0, avc, msg, argument_list);
491  va_end(argument_list);
492 }
av_vlog
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.
Definition: log.c:426
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
level
uint8_t level
Definition: svq3.c:204
av_clip
#define av_clip
Definition: common.h:95
AV_CLASS_CATEGORY_DECODER
@ AV_CLASS_CATEGORY_DECODER
Definition: log.h:35
format_line
static void format_line(void *avcl, int level, const char *fmt, va_list vl, AVBPrint part[4], int *print_prefix, int type[2])
Definition: log.c:294
color
Definition: vf_paletteuse.c:601
av_bprint_init
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
Definition: bprint.c:69
AV_LOG_QUIET
#define AV_LOG_QUIET
Print no output.
Definition: log.h:162
thread.h
AV_LOG_PANIC
#define AV_LOG_PANIC
Something went really wrong and we will crash now.
Definition: log.h:167
missing_feature_sample
static void missing_feature_sample(int sample, void *avc, const char *msg, va_list argument_list)
Definition: log.c:462
AVClass::version
int version
LIBAVUTIL_VERSION with which this structure was created.
Definition: log.h:92
av_log_format_line2
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.
Definition: log.c:336
AV_CLASS_CATEGORY_INPUT
@ AV_CLASS_CATEGORY_INPUT
Definition: log.h:30
AV_CLASS_CATEGORY_NA
@ AV_CLASS_CATEGORY_NA
Definition: log.h:29
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:28
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
LINE_SZ
#define LINE_SZ
Definition: log.c:48
ansi_fputs
static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
Definition: log.c:185
ff_mutex_unlock
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:178
get_level_str
static const char * get_level_str(int level)
Definition: log.c:268
dummy
int dummy
Definition: motion.c:65
AV_BPRINT_SIZE_AUTOMATIC
#define AV_BPRINT_SIZE_AUTOMATIC
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AV_CLASS_CATEGORY_OUTPUT
@ AV_CLASS_CATEGORY_OUTPUT
Definition: log.h:31
AV_CLASS_CATEGORY_DEVICE_INPUT
@ AV_CLASS_CATEGORY_DEVICE_INPUT
Definition: log.h:45
GET_UTF8
#define GET_UTF8(val, GET_BYTE, ERROR)
Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
Definition: common.h:469
AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT
@ AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT
Definition: log.h:43
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:206
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
AVMutex
#define AVMutex
Definition: thread.h:173
av_log_format_line
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.
Definition: log.c:330
av_log_level
static int av_log_level
Definition: log.c:56
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
state
static struct @344 state
AV_CLASS_CATEGORY_NB
@ AV_CLASS_CATEGORY_NB
not part of ABI/API
Definition: log.h:46
NB_LEVELS
#define NB_LEVELS
Definition: log.c:59
callback
static void callback(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time, enum dshowDeviceType devtype)
Definition: dshow.c:341
arg
const char * arg
Definition: jacosubdec.c:67
AV_CLASS_CATEGORY_DEMUXER
@ AV_CLASS_CATEGORY_DEMUXER
Definition: log.h:33
av_log_get_level
int av_log_get_level(void)
Get the current log level.
Definition: log.c:437
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...)
Definition: log.c:485
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
PUT_UTF16
#define PUT_UTF16(val, tmp, PUT_16BIT)
Definition: common.h:556
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
av_log_set_flags
void av_log_set_flags(int arg)
Definition: log.c:447
AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT
@ AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT
Definition: log.h:40
get_category
static int get_category(void *ptr)
Definition: log.c:255
AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
@ AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
Definition: log.h:41
AV_CLASS_CATEGORY_FILTER
@ AV_CLASS_CATEGORY_FILTER
Definition: log.h:36
flags
static int flags
Definition: log.c:57
av_log_set_callback
void av_log_set_callback(void(*callback)(void *, int, const char *, va_list))
Set the logging callback.
Definition: log.c:457
av_bprint_finalize
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
AVClass::category
AVClassCategory category
Category used for visualization (like color) This is only set if the category is equal for all object...
Definition: log.h:114
sample
#define sample
Definition: flacdsp_template.c:44
AV_MUTEX_INITIALIZER
#define AV_MUTEX_INITIALIZER
Definition: thread.h:174
AVClass::get_category
AVClassCategory(* get_category)(void *ctx)
Callback to return the category.
Definition: log.h:120
av_log_get_flags
int av_log_get_flags(void)
Definition: log.c:452
colored_fputs
static void colored_fputs(int level, int tint, const char *str)
Definition: log.c:209
line
Definition: graph2dot.c:48
ff_mutex_lock
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:177
AV_CLASS_CATEGORY_SWRESAMPLER
@ AV_CLASS_CATEGORY_SWRESAMPLER
Definition: log.h:39
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
av_log
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:409
av_log_set_level
void av_log_set_level(int level)
Set the log level.
Definition: log.c:442
bprint.h
AVClassCategory
AVClassCategory
Definition: log.h:28
log.h
internal.h
AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT
@ AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT
Definition: log.h:42
common.h
use_color
static int use_color
Definition: log.c:123
check_color_terminal
static void check_color_terminal(void)
Definition: log.c:150
avpriv_request_sample
void avpriv_request_sample(void *avc, const char *msg,...)
Definition: log.c:476
ret
ret
Definition: filter_design.txt:187
AV_LOG_FATAL
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:174
av_bprintf
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition: bprint.c:94
av_log_callback
static void(* av_log_callback)(void *, int, const char *, va_list)
Definition: log.c:406
AV_LOG_SKIP_REPEATED
#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...
Definition: log.h:370
AV_CLASS_CATEGORY_MUXER
@ AV_CLASS_CATEGORY_MUXER
Definition: log.h:32
av_default_get_category
AVClassCategory av_default_get_category(void *ptr)
Definition: log.c:242
av_vbprintf
void av_vbprintf(AVBPrint *buf, const char *fmt, va_list vl_arg)
Append a formatted string to a print buffer.
Definition: bprint.c:117
AV_CLASS_CATEGORY_SWSCALER
@ AV_CLASS_CATEGORY_SWSCALER
Definition: log.h:38
AV_CLASS_CATEGORY_DEVICE_OUTPUT
@ AV_CLASS_CATEGORY_DEVICE_OUTPUT
Definition: log.h:44
av_log_once
void av_log_once(void *avcl, int initial_level, int subsequent_level, int *state, const char *fmt,...)
Definition: log.c:417
av_log_default_callback
void av_log_default_callback(void *ptr, int level, const char *fmt, va_list vl)
Default logging callback.
Definition: log.c:348
AV_CLASS_CATEGORY_BITSTREAM_FILTER
@ AV_CLASS_CATEGORY_BITSTREAM_FILTER
Definition: log.h:37
convert_header.str
string str
Definition: convert_header.py:20
AVClass::log_level_offset_offset
int log_level_offset_offset
Offset in the structure where log_level_offset is stored.
Definition: log.h:98
AV_CLASS_CATEGORY_ENCODER
@ AV_CLASS_CATEGORY_ENCODER
Definition: log.h:34
AVClass::parent_log_context_offset
int parent_log_context_offset
Offset in the structure where a pointer to the parent context for logging is stored.
Definition: log.h:107
isatty
#define isatty(fd)
Definition: checkasm.c:62
AVClass::item_name
const char *(* item_name)(void *ctx)
A pointer to a function which returns the name of a context instance ctx associated with the class.
Definition: log.h:77
int
int
Definition: ffmpeg_filter.c:156
snprintf
#define snprintf
Definition: snprintf.h:34
sanitize
static void sanitize(uint8_t *line)
Definition: log.c:247
log_callback
static void log_callback(void *ptr, int level, const char *fmt, va_list vl)
Definition: ffprobe.c:328
AV_LOG_PRINT_LEVEL
#define AV_LOG_PRINT_LEVEL
Include the log severity in messages originating from codecs.
Definition: log.h:378
line
The official guide to swscale for confused that consecutive non overlapping rectangles of slice_bottom special converter These generally are unscaled converters of common like for each output line the vertical scaler pulls lines from a ring buffer When the ring buffer does not contain the wanted line
Definition: swscale.txt:40
mutex
static AVMutex mutex
Definition: log.c:46