3 * Copyright (c) 2003 Michel Bardiaux
5 * This file is part of FFmpeg.
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.
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.
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
32 static int av_log_level = AV_LOG_INFO;
35 #if defined(_WIN32) && !defined(__MINGW32CE__)
37 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
38 [AV_LOG_PANIC /8] = 12,
39 [AV_LOG_FATAL /8] = 12,
40 [AV_LOG_ERROR /8] = 12,
41 [AV_LOG_WARNING/8] = 14,
43 [AV_LOG_VERBOSE/8] = 10,
44 [AV_LOG_DEBUG /8] = 10,
45 [16+AV_CLASS_CATEGORY_NA ] = 7,
46 [16+AV_CLASS_CATEGORY_INPUT ] = 3,
47 [16+AV_CLASS_CATEGORY_OUTPUT ] = 11,
48 [16+AV_CLASS_CATEGORY_MUXER ] = 3,
49 [16+AV_CLASS_CATEGORY_DEMUXER ] = 11,
50 [16+AV_CLASS_CATEGORY_ENCODER ] = 5,
51 [16+AV_CLASS_CATEGORY_DECODER ] = 13,
52 [16+AV_CLASS_CATEGORY_FILTER ] = 1,
53 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
56 static int16_t background, attr_orig;
58 #define set_color(x) SetConsoleTextAttribute(con, background | color[x])
59 #define reset_color() SetConsoleTextAttribute(con, attr_orig)
62 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
63 [AV_LOG_PANIC /8] = 0x41,
64 [AV_LOG_FATAL /8] = 0x41,
65 [AV_LOG_ERROR /8] = 0x11,
66 [AV_LOG_WARNING/8] = 0x03,
68 [AV_LOG_VERBOSE/8] = 0x02,
69 [AV_LOG_DEBUG /8] = 0x02,
70 [16+AV_CLASS_CATEGORY_NA ] = 9,
71 [16+AV_CLASS_CATEGORY_INPUT ] = 0x06,
72 [16+AV_CLASS_CATEGORY_OUTPUT ] = 0x16,
73 [16+AV_CLASS_CATEGORY_MUXER ] = 0x06,
74 [16+AV_CLASS_CATEGORY_DEMUXER ] = 0x16,
75 [16+AV_CLASS_CATEGORY_ENCODER ] = 0x05,
76 [16+AV_CLASS_CATEGORY_DECODER ] = 0x15,
77 [16+AV_CLASS_CATEGORY_FILTER ] = 0x04,
78 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 0x14,
81 #define set_color(x) fprintf(stderr, "\033[%d;3%dm", color[x] >> 4, color[x]&15)
82 #define reset_color() fprintf(stderr, "\033[0m")
84 static int use_color = -1;
87 static void colored_fputs(int level, const char *str)
90 #if defined(_WIN32) && !defined(__MINGW32CE__)
91 CONSOLE_SCREEN_BUFFER_INFO con_info;
92 con = GetStdHandle(STD_ERROR_HANDLE);
93 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
94 !getenv("AV_LOG_FORCE_NOCOLOR");
96 GetConsoleScreenBufferInfo(con, &con_info);
97 attr_orig = con_info.wAttributes;
98 background = attr_orig & 0xF0;
101 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
102 (getenv("TERM") && isatty(2) ||
103 getenv("AV_LOG_FORCE_COLOR"));
105 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
106 !getenv("AV_LOG_FORCE_NOCOLOR");
119 const char *av_default_item_name(void *ptr)
121 return (*(AVClass **) ptr)->class_name;
124 static void sanitize(uint8_t *line){
126 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
132 static int get_category(AVClass *avc){
134 || (avc->version&0xFF)<100
135 || avc->version < (51 << 16 | 56 << 8)
136 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
138 return avc->category + 16;
141 static void format_line(void *ptr, int level, const char *fmt, va_list vl,
142 char part[3][512], int part_size, int *print_prefix, int type[2])
144 AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
145 part[0][0] = part[1][0] = part[2][0] = 0;
146 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
147 if (*print_prefix && avc) {
148 if (avc->parent_log_context_offset) {
149 AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
150 avc->parent_log_context_offset);
151 if (parent && *parent) {
152 snprintf(part[0], part_size, "[%s @ %p] ",
153 (*parent)->item_name(parent), parent);
154 if(type) type[0] = get_category(*parent);
157 snprintf(part[1], part_size, "[%s @ %p] ",
158 avc->item_name(ptr), ptr);
159 if(type) type[1] = get_category(avc);
162 vsnprintf(part[2], part_size, fmt, vl);
164 *print_prefix = strlen(part[2]) && part[2][strlen(part[2]) - 1] == '\n';
167 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
168 char *line, int line_size, int *print_prefix)
171 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), print_prefix, NULL);
172 snprintf(line, line_size, "%s%s%s", part[0], part[1], part[2]);
175 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
177 static int print_prefix = 1;
179 static char prev[1024];
185 if (level > av_log_level)
187 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), &print_prefix, type);
188 snprintf(line, sizeof(line), "%s%s%s", part[0], part[1], part[2]);
192 is_atty = isatty(2) ? 1 : -1;
196 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
199 fprintf(stderr, " Last message repeated %d times\r", count);
203 fprintf(stderr, " Last message repeated %d times\n", count);
208 colored_fputs(type[0], part[0]);
210 colored_fputs(type[1], part[1]);
212 colored_fputs(av_clip(level >> 3, 0, 6), part[2]);
215 static void (*av_log_callback)(void*, int, const char*, va_list) =
216 av_log_default_callback;
218 void av_log(void* avcl, int level, const char *fmt, ...)
220 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
223 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
224 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
225 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
226 av_vlog(avcl, level, fmt, vl);
230 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
233 av_log_callback(avcl, level, fmt, vl);
236 int av_log_get_level(void)
241 void av_log_set_level(int level)
243 av_log_level = level;
246 void av_log_set_flags(int arg)
251 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
253 av_log_callback = callback;