Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  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 <stdarg.h>
  36. #include <stdlib.h>
  37. #include "avutil.h"
  38. #include "bprint.h"
  39. #include "common.h"
  40. #include "internal.h"
  41. #include "log.h"
  42.  
  43. #if HAVE_PTHREADS
  44. #include <pthread.h>
  45. static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
  46. #endif
  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.  
  56. static int av_log_level = AV_LOG_INFO;
  57. static int flags;
  58.  
  59. #define NB_LEVELS 8
  60. #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE
  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. static void check_color_terminal(void)
  126. {
  127. #if defined(_WIN32) && !defined(__MINGW32CE__) && 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");
  132.     if (use_color) {
  133.         GetConsoleScreenBufferInfo(con, &con_info);
  134.         attr_orig  = con_info.wAttributes;
  135.         background = attr_orig & 0xF0;
  136.     }
  137. #elif HAVE_ISATTY
  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")))
  143.         use_color *= 256;
  144. #else
  145.     use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
  146.                !getenv("AV_LOG_FORCE_NOCOLOR");
  147. #endif
  148. }
  149.  
  150. static void colored_fputs(int level, int tint, const char *str)
  151. {
  152.     int local_use_color;
  153.     if (!*str)
  154.         return;
  155.  
  156.     if (use_color < 0)
  157.         check_color_terminal();
  158.  
  159.     if (level == AV_LOG_INFO/8) local_use_color = 0;
  160.     else                        local_use_color = use_color;
  161.  
  162. #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE
  163.     if (local_use_color)
  164.         SetConsoleTextAttribute(con, background | color[level]);
  165.     fputs(str, stderr);
  166.     if (local_use_color)
  167.         SetConsoleTextAttribute(con, attr_orig);
  168. #else
  169.     if (local_use_color == 1) {
  170.         fprintf(stderr,
  171.                 "\033[%d;3%dm%s\033[0m",
  172.                 (color[level] >> 4) & 15,
  173.                 color[level] & 15,
  174.                 str);
  175.     } else if (tint && use_color == 256) {
  176.         fprintf(stderr,
  177.                 "\033[48;5;%dm\033[38;5;%dm%s\033[0m",
  178.                 (color[level] >> 16) & 0xff,
  179.                 tint,
  180.                 str);
  181.     } else if (local_use_color == 256) {
  182.         fprintf(stderr,
  183.                 "\033[48;5;%dm\033[38;5;%dm%s\033[0m",
  184.                 (color[level] >> 16) & 0xff,
  185.                 (color[level] >> 8) & 0xff,
  186.                 str);
  187.     } else
  188.         fputs(str, stderr);
  189. #endif
  190.  
  191. }
  192.  
  193. const char *av_default_item_name(void *ptr)
  194. {
  195.     return (*(AVClass **) ptr)->class_name;
  196. }
  197.  
  198. AVClassCategory av_default_get_category(void *ptr)
  199. {
  200.     return (*(AVClass **) ptr)->category;
  201. }
  202.  
  203. static void sanitize(uint8_t *line){
  204.     while(*line){
  205.         if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
  206.             *line='?';
  207.         line++;
  208.     }
  209. }
  210.  
  211. static int get_category(void *ptr){
  212.     AVClass *avc = *(AVClass **) ptr;
  213.     if(    !avc
  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;
  217.  
  218.     if(avc->get_category)
  219.         return avc->get_category(ptr) + 16;
  220.  
  221.     return avc->category + 16;
  222. }
  223.  
  224. static const char *get_level_str(int level)
  225. {
  226.     switch (level) {
  227.     case AV_LOG_QUIET:
  228.         return "quiet";
  229.     case AV_LOG_DEBUG:
  230.         return "debug";
  231.     case AV_LOG_VERBOSE:
  232.         return "verbose";
  233.     case AV_LOG_INFO:
  234.         return "info";
  235.     case AV_LOG_WARNING:
  236.         return "warning";
  237.     case AV_LOG_ERROR:
  238.         return "error";
  239.     case AV_LOG_FATAL:
  240.         return "fatal";
  241.     case AV_LOG_PANIC:
  242.         return "panic";
  243.     default:
  244.         return "";
  245.     }
  246. }
  247.  
  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])
  250. {
  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);
  256.  
  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);
  266.             }
  267.         }
  268.         av_bprintf(part+1, "[%s @ %p] ",
  269.                  avc->item_name(avcl), avcl);
  270.         if(type) type[1] = get_category(avcl);
  271.  
  272.         if (flags & AV_LOG_PRINT_LEVEL)
  273.             av_bprintf(part+2, "[%s] ", get_level_str(level));
  274.     }
  275.  
  276.     av_vbprintf(part+3, fmt, vl);
  277.  
  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';
  281.     }
  282. }
  283.  
  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)
  286. {
  287.     AVBPrint part[4];
  288.     format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
  289.     snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
  290.     av_bprint_finalize(part+3, NULL);
  291. }
  292.  
  293. void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
  294. {
  295.     static int print_prefix = 1;
  296.     static int count;
  297.     static char prev[LINE_SZ];
  298.     AVBPrint part[4];
  299.     char line[LINE_SZ];
  300.     static int is_atty;
  301.     int type[2];
  302.     unsigned tint = 0;
  303.  
  304.     if (level >= 0) {
  305.         tint = level & 0xff00;
  306.         level &= 0xff;
  307.     }
  308.  
  309.     if (level > av_log_level)
  310.         return;
  311. #if HAVE_PTHREADS
  312.     pthread_mutex_lock(&mutex);
  313. #endif
  314.  
  315.     format_line(ptr, level, fmt, vl, part, &print_prefix, type);
  316.     snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
  317.  
  318. #if HAVE_ISATTY
  319.     if (!is_atty)
  320.         is_atty = isatty(2) ? 1 : -1;
  321. #endif
  322.  
  323.     if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
  324.         *line && line[strlen(line) - 1] != '\r'){
  325.         count++;
  326.         if (is_atty == 1)
  327.             fprintf(stderr, "    Last message repeated %d times\r", count);
  328.         goto end;
  329.     }
  330.     if (count > 0) {
  331.         fprintf(stderr, "    Last message repeated %d times\n", count);
  332.         count = 0;
  333.     }
  334.     strcpy(prev, line);
  335.     sanitize(part[0].str);
  336.     colored_fputs(type[0], 0, part[0].str);
  337.     sanitize(part[1].str);
  338.     colored_fputs(type[1], 0, part[1].str);
  339.     sanitize(part[2].str);
  340.     colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
  341.     sanitize(part[3].str);
  342.     colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
  343.  
  344. #if CONFIG_VALGRIND_BACKTRACE
  345.     if (level <= BACKTRACE_LOGLEVEL)
  346.         VALGRIND_PRINTF_BACKTRACE("%s", "");
  347. #endif
  348. end:
  349.     av_bprint_finalize(part+3, NULL);
  350. #if HAVE_PTHREADS
  351.     pthread_mutex_unlock(&mutex);
  352. #endif
  353. }
  354.  
  355. static void (*av_log_callback)(void*, int, const char*, va_list) =
  356.     av_log_default_callback;
  357.  
  358. void av_log(void* avcl, int level, const char *fmt, ...)
  359. {
  360.     AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
  361.     va_list vl;
  362.     va_start(vl, fmt);
  363.     if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
  364.         avc->log_level_offset_offset && level >= AV_LOG_FATAL)
  365.         level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
  366.     av_vlog(avcl, level, fmt, vl);
  367.     va_end(vl);
  368. }
  369.  
  370. void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
  371. {
  372.     void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
  373.     if (log_callback)
  374.         log_callback(avcl, level, fmt, vl);
  375. }
  376.  
  377. int av_log_get_level(void)
  378. {
  379.     return av_log_level;
  380. }
  381.  
  382. void av_log_set_level(int level)
  383. {
  384.     av_log_level = level;
  385. }
  386.  
  387. void av_log_set_flags(int arg)
  388. {
  389.     flags = arg;
  390. }
  391.  
  392. int av_log_get_flags(void)
  393. {
  394.     return flags;
  395. }
  396.  
  397. void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
  398. {
  399.     av_log_callback = callback;
  400. }
  401.  
  402. static void missing_feature_sample(int sample, void *avc, const char *msg,
  403.                                    va_list argument_list)
  404. {
  405.     av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
  406.     av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
  407.            "version to the newest one from Git. If the problem still "
  408.            "occurs, it means that your file has a feature which has not "
  409.            "been implemented.\n");
  410.     if (sample)
  411.         av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
  412.                "of this file to ftp://upload.ffmpeg.org/incoming/ "
  413.                "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
  414. }
  415.  
  416. void avpriv_request_sample(void *avc, const char *msg, ...)
  417. {
  418.     va_list argument_list;
  419.  
  420.     va_start(argument_list, msg);
  421.     missing_feature_sample(1, avc, msg, argument_list);
  422.     va_end(argument_list);
  423. }
  424.  
  425. void avpriv_report_missing_feature(void *avc, const char *msg, ...)
  426. {
  427.     va_list argument_list;
  428.  
  429.     va_start(argument_list, msg);
  430.     missing_feature_sample(0, avc, msg, argument_list);
  431.     va_end(argument_list);
  432. }
  433.  
  434. #ifdef TEST
  435. // LCOV_EXCL_START
  436. #include <string.h>
  437.  
  438. int main(int argc, char **argv)
  439. {
  440.     int i;
  441.     av_log_set_level(AV_LOG_DEBUG);
  442.     for (use_color=0; use_color<=256; use_color = 255*use_color+1) {
  443.         av_log(NULL, AV_LOG_FATAL, "use_color: %d\n", use_color);
  444.         for (i = AV_LOG_DEBUG; i>=AV_LOG_QUIET; i-=8) {
  445.             av_log(NULL, i, " %d", i);
  446.             av_log(NULL, AV_LOG_INFO, "e ");
  447.             av_log(NULL, i + 256*123, "C%d", i);
  448.             av_log(NULL, AV_LOG_INFO, "e");
  449.         }
  450.         av_log(NULL, AV_LOG_PANIC, "\n");
  451.     }
  452.     return 0;
  453. }
  454. // LCOV_EXCL_STOP
  455. #endif
  456.