FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavutil/log.c
Date: 2024-02-16 17:37:06
Exec Total Coverage
Lines: 146 190 76.8%
Functions: 20 24 83.3%
Branches: 98 138 71.0%

Line Branch Exec Source
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
46 static AVMutex mutex = AV_MUTEX_INITIALIZER;
47
48 #define LINE_SZ 1024
49
50 #if HAVE_VALGRIND_VALGRIND_H && CONFIG_VALGRIND_BACKTRACE
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
56 static int av_log_level = AV_LOG_INFO;
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,
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,
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 6955 static void check_color_terminal(void)
151 {
152 6955 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
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6955 if (getenv("AV_LOG_FORCE_NOCOLOR")) {
168 use_color = 0;
169
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6955 } 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
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6955 use_color = (term && isatty(2));
176 #else
177 use_color = 0;
178 #endif
179 }
180
181
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6955 if (getenv("AV_LOG_FORCE_256COLOR") || term && strstr(term, "256color"))
182 6955 use_color *= 256;
183 6955 }
184
185 392156 static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
186 {
187
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392156 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
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392156 } 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
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392156 } 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 392156 fputs(str, stderr);
207 392156 }
208
209 1551960 static void colored_fputs(int level, int tint, const char *str)
210 {
211 int local_use_color;
212
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1551960 if (!*str)
213 1159804 return;
214
215
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392156 if (use_color < 0)
216 6955 check_color_terminal();
217
218
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392156 if (level == AV_LOG_INFO/8) local_use_color = 0;
219 30486 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 392156 ansi_fputs(level, tint, str, local_use_color);
233 #endif
234
235 }
236
237 2228 const char *av_default_item_name(void *ptr)
238 {
239 2228 return (*(AVClass **) ptr)->class_name;
240 }
241
242 AVClassCategory av_default_get_category(void *ptr)
243 {
244 return (*(AVClass **) ptr)->category;
245 }
246
247 1551960 static void sanitize(uint8_t *line){
248
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13844042 while(*line){
249
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12292082 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
250 15 *line='?';
251 12292082 line++;
252 }
253 1551960 }
254
255 20188 static int get_category(void *ptr){
256 20188 AVClass *avc = *(AVClass **) ptr;
257
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20188 if( !avc
258
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20188 || (avc->version&0xFF)<100
259
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20188 || avc->version < (51 << 16 | 59 << 8)
260
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20188 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
261
262
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20188 if(avc->get_category)
263 6667 return avc->get_category(ptr) + 16;
264
265 13521 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 20188 static const char *item_name(void *obj, const AVClass *cls)
295 {
296
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20188 return (cls->item_name ? cls->item_name : av_default_item_name)(obj);
297 }
298
299 390171 static void format_line(void *avcl, int level, const char *fmt, va_list vl,
300 AVBPrint part[4], int *print_prefix, int type[2])
301 {
302
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390171 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
303 390171 av_bprint_init(part+0, 0, AV_BPRINT_SIZE_AUTOMATIC);
304 390171 av_bprint_init(part+1, 0, AV_BPRINT_SIZE_AUTOMATIC);
305 390171 av_bprint_init(part+2, 0, AV_BPRINT_SIZE_AUTOMATIC);
306 390171 av_bprint_init(part+3, 0, 65536);
307
308
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390171 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
309
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390171 if (*print_prefix && avc) {
310
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19629 if (avc->parent_log_context_offset) {
311 3033 AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
312 3033 avc->parent_log_context_offset);
313
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3033 if (parent && *parent) {
314 559 av_bprintf(part+0, "[%s @ %p] ",
315 item_name(parent, *parent), parent);
316
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559 if(type) type[0] = get_category(parent);
317 }
318 }
319 19629 av_bprintf(part+1, "[%s @ %p] ",
320 item_name(avcl, avc), avcl);
321
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19629 if(type) type[1] = get_category(avcl);
322 }
323
324
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390171 if (*print_prefix && (level > AV_LOG_QUIET) && (flags & AV_LOG_PRINT_LEVEL))
325 av_bprintf(part+2, "[%s] ", get_level_str(level));
326
327 390171 av_vbprintf(part+3, fmt, vl);
328
329
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390171 if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
330
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376388 char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
331
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376388 *print_prefix = lastc == '\n' || lastc == '\r';
332 }
333 390171 }
334
335 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
336 char *line, int line_size, int *print_prefix)
337 {
338 av_log_format_line2(ptr, level, fmt, vl, line, line_size, print_prefix);
339 }
340
341 int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
342 char *line, int line_size, int *print_prefix)
343 {
344 AVBPrint part[4];
345 int ret;
346
347 format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
348 ret = snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
349 av_bprint_finalize(part+3, NULL);
350 return ret;
351 }
352
353 16073015 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
354 {
355 static int print_prefix = 1;
356 static int count;
357 static char prev[LINE_SZ];
358 AVBPrint part[4];
359 char line[LINE_SZ];
360 static int is_atty;
361 int type[2];
362 16073015 unsigned tint = 0;
363
364
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16073015 if (level >= 0) {
365 16059534 tint = level & 0xff00;
366 16059534 level &= 0xff;
367 }
368
369
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16073015 if (level > av_log_level)
370 15682844 return;
371 390171 ff_mutex_lock(&mutex);
372
373 390171 format_line(ptr, level, fmt, vl, part, &print_prefix, type);
374 390171 snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
375
376 #if HAVE_ISATTY
377
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390171 if (!is_atty)
378
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6955 is_atty = isatty(2) ? 1 : -1;
379 #endif
380
381
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390171 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
382
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2181 *line && line[strlen(line) - 1] != '\r'){
383 2181 count++;
384
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2181 if (is_atty == 1)
385 fprintf(stderr, " Last message repeated %d times\r", count);
386 2181 goto end;
387 }
388
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387990 if (count > 0) {
389 438 fprintf(stderr, " Last message repeated %d times\n", count);
390 438 count = 0;
391 }
392 387990 strcpy(prev, line);
393 387990 sanitize(part[0].str);
394 387990 colored_fputs(type[0], 0, part[0].str);
395 387990 sanitize(part[1].str);
396 387990 colored_fputs(type[1], 0, part[1].str);
397 387990 sanitize(part[2].str);
398 387990 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
399 387990 sanitize(part[3].str);
400 387990 colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
401
402 #if CONFIG_VALGRIND_BACKTRACE
403
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387990 if (level <= BACKTRACE_LOGLEVEL)
404 18268 VALGRIND_PRINTF_BACKTRACE("%s", "");
405 #endif
406 369722 end:
407 390171 av_bprint_finalize(part+3, NULL);
408 390171 ff_mutex_unlock(&mutex);
409 }
410
411 static void (*av_log_callback)(void*, int, const char*, va_list) =
412 av_log_default_callback;
413
414 16073225 void av_log(void* avcl, int level, const char *fmt, ...)
415 {
416 va_list vl;
417 16073225 va_start(vl, fmt);
418 16073225 av_vlog(avcl, level, fmt, vl);
419 16073225 va_end(vl);
420 16073225 }
421
422 57 void av_log_once(void* avcl, int initial_level, int subsequent_level, int *state, const char *fmt, ...)
423 {
424 va_list vl;
425 57 va_start(vl, fmt);
426
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57 av_vlog(avcl, *state ? subsequent_level : initial_level, fmt, vl);
427 57 va_end(vl);
428 57 *state = 1;
429 57 }
430
431 16073462 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
432 {
433
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16073462 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
434 16073462 void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
435
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16073462 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
436
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15108932 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
437 749596 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
438
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16073462 if (log_callback)
439 16073459 log_callback(avcl, level, fmt, vl);
440 16073462 }
441
442 48350 int av_log_get_level(void)
443 {
444 48350 return av_log_level;
445 }
446
447 110 void av_log_set_level(int level)
448 {
449 110 av_log_level = level;
450 110 }
451
452 6907 void av_log_set_flags(int arg)
453 {
454 6907 flags = arg;
455 6907 }
456
457 64 int av_log_get_flags(void)
458 {
459 64 return flags;
460 }
461
462 68 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
463 {
464 68 av_log_callback = callback;
465 68 }
466
467 40 static void missing_feature_sample(int sample, void *avc, const char *msg,
468 va_list argument_list)
469 {
470 40 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
471 40 av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
472 "version to the newest one from Git. If the problem still "
473 "occurs, it means that your file has a feature which has not "
474 "been implemented.\n");
475
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40 if (sample)
476 26 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
477 "of this file to https://streams.videolan.org/upload/ "
478 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
479 40 }
480
481 26 void avpriv_request_sample(void *avc, const char *msg, ...)
482 {
483 va_list argument_list;
484
485 26 va_start(argument_list, msg);
486 26 missing_feature_sample(1, avc, msg, argument_list);
487 26 va_end(argument_list);
488 26 }
489
490 14 void avpriv_report_missing_feature(void *avc, const char *msg, ...)
491 {
492 va_list argument_list;
493
494 14 va_start(argument_list, msg);
495 14 missing_feature_sample(0, avc, msg, argument_list);
496 14 va_end(argument_list);
497 14 }
498