| /* |
| * log functions |
| * Copyright (c) 2003 Michel Bardiaux |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * logging functions |
| */ |
| |
| #include "config.h" |
| |
| #if HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #if HAVE_IO_H |
| #include <io.h> |
| #endif |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include "avutil.h" |
| #include "bprint.h" |
| #include "common.h" |
| #include "internal.h" |
| #include "log.h" |
| |
| #if HAVE_PTHREADS |
| #include <pthread.h> |
| static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
| #endif |
| |
| #define LINE_SZ 1024 |
| |
| #if HAVE_VALGRIND_VALGRIND_H |
| #include <valgrind/valgrind.h> |
| /* this is the log level at which valgrind will output a full backtrace */ |
| #define BACKTRACE_LOGLEVEL AV_LOG_ERROR |
| #endif |
| |
| static int av_log_level = AV_LOG_INFO; |
| static int flags; |
| |
| #define NB_LEVELS 8 |
| #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE |
| #include <windows.h> |
| static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = { |
| [AV_LOG_PANIC /8] = 12, |
| [AV_LOG_FATAL /8] = 12, |
| [AV_LOG_ERROR /8] = 12, |
| [AV_LOG_WARNING/8] = 14, |
| [AV_LOG_INFO /8] = 7, |
| [AV_LOG_VERBOSE/8] = 10, |
| [AV_LOG_DEBUG /8] = 10, |
| [AV_LOG_TRACE /8] = 8, |
| [16+AV_CLASS_CATEGORY_NA ] = 7, |
| [16+AV_CLASS_CATEGORY_INPUT ] = 13, |
| [16+AV_CLASS_CATEGORY_OUTPUT ] = 5, |
| [16+AV_CLASS_CATEGORY_MUXER ] = 13, |
| [16+AV_CLASS_CATEGORY_DEMUXER ] = 5, |
| [16+AV_CLASS_CATEGORY_ENCODER ] = 11, |
| [16+AV_CLASS_CATEGORY_DECODER ] = 3, |
| [16+AV_CLASS_CATEGORY_FILTER ] = 10, |
| [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9, |
| [16+AV_CLASS_CATEGORY_SWSCALER ] = 7, |
| [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7, |
| [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 13, |
| [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 5, |
| [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 13, |
| [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 5, |
| [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 13, |
| [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 5, |
| }; |
| |
| static int16_t background, attr_orig; |
| static HANDLE con; |
| #else |
| |
| static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = { |
| [AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41, |
| [AV_LOG_FATAL /8] = 208 << 8 | 0x41, |
| [AV_LOG_ERROR /8] = 196 << 8 | 0x11, |
| [AV_LOG_WARNING/8] = 226 << 8 | 0x03, |
| [AV_LOG_INFO /8] = 253 << 8 | 0x09, |
| [AV_LOG_VERBOSE/8] = 40 << 8 | 0x02, |
| [AV_LOG_DEBUG /8] = 34 << 8 | 0x02, |
| [AV_LOG_TRACE /8] = 34 << 8 | 0x07, |
| [16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09, |
| [16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15, |
| [16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05, |
| [16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15, |
| [16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05, |
| [16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16, |
| [16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06, |
| [16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12, |
| [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14, |
| [16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14, |
| [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14, |
| [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 213 << 8 | 0x15, |
| [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT ] = 207 << 8 | 0x05, |
| [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 213 << 8 | 0x15, |
| [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT ] = 207 << 8 | 0x05, |
| [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT ] = 213 << 8 | 0x15, |
| [16+AV_CLASS_CATEGORY_DEVICE_INPUT ] = 207 << 8 | 0x05, |
| }; |
| |
| #endif |
| static int use_color = -1; |
| |
| static void check_color_terminal(void) |
| { |
| #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE |
| CONSOLE_SCREEN_BUFFER_INFO con_info; |
| con = GetStdHandle(STD_ERROR_HANDLE); |
| use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") && |
| !getenv("AV_LOG_FORCE_NOCOLOR"); |
| if (use_color) { |
| GetConsoleScreenBufferInfo(con, &con_info); |
| attr_orig = con_info.wAttributes; |
| background = attr_orig & 0xF0; |
| } |
| #elif HAVE_ISATTY |
| char *term = getenv("TERM"); |
| use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") && |
| (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR")); |
| if ( getenv("AV_LOG_FORCE_256COLOR") |
| || (term && strstr(term, "256color"))) |
| use_color *= 256; |
| #else |
| use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") && |
| !getenv("AV_LOG_FORCE_NOCOLOR"); |
| #endif |
| } |
| |
| static void colored_fputs(int level, int tint, const char *str) |
| { |
| int local_use_color; |
| if (!*str) |
| return; |
| |
| if (use_color < 0) |
| check_color_terminal(); |
| |
| if (level == AV_LOG_INFO/8) local_use_color = 0; |
| else local_use_color = use_color; |
| |
| #if defined(_WIN32) && !defined(__MINGW32CE__) && HAVE_SETCONSOLETEXTATTRIBUTE |
| if (local_use_color) |
| SetConsoleTextAttribute(con, background | color[level]); |
| fputs(str, stderr); |
| if (local_use_color) |
| SetConsoleTextAttribute(con, attr_orig); |
| #else |
| if (local_use_color == 1) { |
| fprintf(stderr, |
| "\033[%d;3%dm%s\033[0m", |
| (color[level] >> 4) & 15, |
| color[level] & 15, |
| str); |
| } else if (tint && use_color == 256) { |
| fprintf(stderr, |
| "\033[48;5;%dm\033[38;5;%dm%s\033[0m", |
| (color[level] >> 16) & 0xff, |
| tint, |
| str); |
| } else if (local_use_color == 256) { |
| fprintf(stderr, |
| "\033[48;5;%dm\033[38;5;%dm%s\033[0m", |
| (color[level] >> 16) & 0xff, |
| (color[level] >> 8) & 0xff, |
| str); |
| } else |
| fputs(str, stderr); |
| #endif |
| |
| } |
| |
| const char *av_default_item_name(void *ptr) |
| { |
| return (*(AVClass **) ptr)->class_name; |
| } |
| |
| AVClassCategory av_default_get_category(void *ptr) |
| { |
| return (*(AVClass **) ptr)->category; |
| } |
| |
| static void sanitize(uint8_t *line){ |
| while(*line){ |
| if(*line < 0x08 || (*line > 0x0D && *line < 0x20)) |
| *line='?'; |
| line++; |
| } |
| } |
| |
| static int get_category(void *ptr){ |
| AVClass *avc = *(AVClass **) ptr; |
| if( !avc |
| || (avc->version&0xFF)<100 |
| || avc->version < (51 << 16 | 59 << 8) |
| || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16; |
| |
| if(avc->get_category) |
| return avc->get_category(ptr) + 16; |
| |
| return avc->category + 16; |
| } |
| |
| static const char *get_level_str(int level) |
| { |
| switch (level) { |
| case AV_LOG_QUIET: |
| return "quiet"; |
| case AV_LOG_DEBUG: |
| return "debug"; |
| case AV_LOG_VERBOSE: |
| return "verbose"; |
| case AV_LOG_INFO: |
| return "info"; |
| case AV_LOG_WARNING: |
| return "warning"; |
| case AV_LOG_ERROR: |
| return "error"; |
| case AV_LOG_FATAL: |
| return "fatal"; |
| case AV_LOG_PANIC: |
| return "panic"; |
| default: |
| return ""; |
| } |
| } |
| |
| static void format_line(void *avcl, int level, const char *fmt, va_list vl, |
| AVBPrint part[4], int *print_prefix, int type[2]) |
| { |
| AVClass* avc = avcl ? *(AVClass **) avcl : NULL; |
| av_bprint_init(part+0, 0, 1); |
| av_bprint_init(part+1, 0, 1); |
| av_bprint_init(part+2, 0, 1); |
| av_bprint_init(part+3, 0, 65536); |
| |
| if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16; |
| if (*print_prefix && avc) { |
| if (avc->parent_log_context_offset) { |
| AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) + |
| avc->parent_log_context_offset); |
| if (parent && *parent) { |
| av_bprintf(part+0, "[%s @ %p] ", |
| (*parent)->item_name(parent), parent); |
| if(type) type[0] = get_category(parent); |
| } |
| } |
| av_bprintf(part+1, "[%s @ %p] ", |
| avc->item_name(avcl), avcl); |
| if(type) type[1] = get_category(avcl); |
| |
| if (flags & AV_LOG_PRINT_LEVEL) |
| av_bprintf(part+2, "[%s] ", get_level_str(level)); |
| } |
| |
| av_vbprintf(part+3, fmt, vl); |
| |
| if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) { |
| char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0; |
| *print_prefix = lastc == '\n' || lastc == '\r'; |
| } |
| } |
| |
| void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl, |
| char *line, int line_size, int *print_prefix) |
| { |
| AVBPrint part[4]; |
| format_line(ptr, level, fmt, vl, part, print_prefix, NULL); |
| snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str); |
| av_bprint_finalize(part+3, NULL); |
| } |
| |
| void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl) |
| { |
| static int print_prefix = 1; |
| static int count; |
| static char prev[LINE_SZ]; |
| AVBPrint part[4]; |
| char line[LINE_SZ]; |
| static int is_atty; |
| int type[2]; |
| unsigned tint = 0; |
| |
| if (level >= 0) { |
| tint = level & 0xff00; |
| level &= 0xff; |
| } |
| |
| if (level > av_log_level) |
| return; |
| #if HAVE_PTHREADS |
| pthread_mutex_lock(&mutex); |
| #endif |
| |
| format_line(ptr, level, fmt, vl, part, &print_prefix, type); |
| snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str); |
| |
| #if HAVE_ISATTY |
| if (!is_atty) |
| is_atty = isatty(2) ? 1 : -1; |
| #endif |
| |
| if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) && |
| *line && line[strlen(line) - 1] != '\r'){ |
| count++; |
| if (is_atty == 1) |
| fprintf(stderr, " Last message repeated %d times\r", count); |
| goto end; |
| } |
| if (count > 0) { |
| fprintf(stderr, " Last message repeated %d times\n", count); |
| count = 0; |
| } |
| strcpy(prev, line); |
| sanitize(part[0].str); |
| colored_fputs(type[0], 0, part[0].str); |
| sanitize(part[1].str); |
| colored_fputs(type[1], 0, part[1].str); |
| sanitize(part[2].str); |
| colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str); |
| sanitize(part[3].str); |
| colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str); |
| |
| #if CONFIG_VALGRIND_BACKTRACE |
| if (level <= BACKTRACE_LOGLEVEL) |
| VALGRIND_PRINTF_BACKTRACE("%s", ""); |
| #endif |
| end: |
| av_bprint_finalize(part+3, NULL); |
| #if HAVE_PTHREADS |
| pthread_mutex_unlock(&mutex); |
| #endif |
| } |
| |
| static void (*av_log_callback)(void*, int, const char*, va_list) = |
| av_log_default_callback; |
| |
| void av_log(void* avcl, int level, const char *fmt, ...) |
| { |
| AVClass* avc = avcl ? *(AVClass **) avcl : NULL; |
| va_list vl; |
| va_start(vl, fmt); |
| if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) && |
| avc->log_level_offset_offset && level >= AV_LOG_FATAL) |
| level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset); |
| av_vlog(avcl, level, fmt, vl); |
| va_end(vl); |
| } |
| |
| void av_vlog(void* avcl, int level, const char *fmt, va_list vl) |
| { |
| void (*log_callback)(void*, int, const char*, va_list) = av_log_callback; |
| if (log_callback) |
| log_callback(avcl, level, fmt, vl); |
| } |
| |
| int av_log_get_level(void) |
| { |
| return av_log_level; |
| } |
| |
| void av_log_set_level(int level) |
| { |
| av_log_level = level; |
| } |
| |
| void av_log_set_flags(int arg) |
| { |
| flags = arg; |
| } |
| |
| int av_log_get_flags(void) |
| { |
| return flags; |
| } |
| |
| void av_log_set_callback(void (*callback)(void*, int, const char*, va_list)) |
| { |
| av_log_callback = callback; |
| } |
| |
| static void missing_feature_sample(int sample, void *avc, const char *msg, |
| va_list argument_list) |
| { |
| av_vlog(avc, AV_LOG_WARNING, msg, argument_list); |
| av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg " |
| "version to the newest one from Git. If the problem still " |
| "occurs, it means that your file has a feature which has not " |
| "been implemented.\n"); |
| if (sample) |
| av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " |
| "of this file to ftp://upload.ffmpeg.org/incoming/ " |
| "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n"); |
| } |
| |
| void avpriv_request_sample(void *avc, const char *msg, ...) |
| { |
| va_list argument_list; |
| |
| va_start(argument_list, msg); |
| missing_feature_sample(1, avc, msg, argument_list); |
| va_end(argument_list); |
| } |
| |
| void avpriv_report_missing_feature(void *avc, const char *msg, ...) |
| { |
| va_list argument_list; |
| |
| va_start(argument_list, msg); |
| missing_feature_sample(0, avc, msg, argument_list); |
| va_end(argument_list); |
| } |
| |
| #ifdef TEST |
| // LCOV_EXCL_START |
| #include <string.h> |
| |
| int main(int argc, char **argv) |
| { |
| int i; |
| av_log_set_level(AV_LOG_DEBUG); |
| for (use_color=0; use_color<=256; use_color = 255*use_color+1) { |
| av_log(NULL, AV_LOG_FATAL, "use_color: %d\n", use_color); |
| for (i = AV_LOG_DEBUG; i>=AV_LOG_QUIET; i-=8) { |
| av_log(NULL, i, " %d", i); |
| av_log(NULL, AV_LOG_INFO, "e "); |
| av_log(NULL, i + 256*123, "C%d", i); |
| av_log(NULL, AV_LOG_INFO, "e"); |
| } |
| av_log(NULL, AV_LOG_PANIC, "\n"); |
| } |
| return 0; |
| } |
| // LCOV_EXCL_STOP |
| #endif |
