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
42 static int av_log_level = AV_LOG_INFO;
45 #if HAVE_SETCONSOLETEXTATTRIBUTE
47 static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
48 [AV_LOG_PANIC /8] = 12,
49 [AV_LOG_FATAL /8] = 12,
50 [AV_LOG_ERROR /8] = 12,
51 [AV_LOG_WARNING/8] = 14,
53 [AV_LOG_VERBOSE/8] = 10,
54 [AV_LOG_DEBUG /8] = 10,
55 [16+AV_CLASS_CATEGORY_NA ] = 7,
56 [16+AV_CLASS_CATEGORY_INPUT ] = 13,
57 [16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
58 [16+AV_CLASS_CATEGORY_MUXER ] = 13,
59 [16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
60 [16+AV_CLASS_CATEGORY_ENCODER ] = 11,
61 [16+AV_CLASS_CATEGORY_DECODER ] = 3,
62 [16+AV_CLASS_CATEGORY_FILTER ] = 10,
63 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
64 [16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
65 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
68 static int16_t background, attr_orig;
70 #define set_color(x) SetConsoleTextAttribute(con, background | color[x])
71 #define set_256color set_color
72 #define reset_color() SetConsoleTextAttribute(con, attr_orig)
75 static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
76 [AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
77 [AV_LOG_FATAL /8] = 208 << 8 | 0x41,
78 [AV_LOG_ERROR /8] = 196 << 8 | 0x11,
79 [AV_LOG_WARNING/8] = 226 << 8 | 0x03,
80 [AV_LOG_INFO /8] = 253 << 8 | 0x09,
81 [AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
82 [AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
83 [16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
84 [16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
85 [16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
86 [16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
87 [16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
88 [16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
89 [16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
90 [16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
91 [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
92 [16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
93 [16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
96 #define set_color(x) fprintf(stderr, "\033[%d;3%dm", (color[x] >> 4) & 15, color[x] & 15)
97 #define set_256color(x) fprintf(stderr, "\033[48;5;%dm\033[38;5;%dm", (color[x] >> 16) & 0xff, (color[x] >> 8) & 0xff)
98 #define reset_color() fprintf(stderr, "\033[0m")
100 static int use_color = -1;
103 static void colored_fputs(int level, const char *str)
106 #if HAVE_SETCONSOLETEXTATTRIBUTE
107 CONSOLE_SCREEN_BUFFER_INFO con_info;
108 con = GetStdHandle(STD_ERROR_HANDLE);
109 use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
110 !getenv("AV_LOG_FORCE_NOCOLOR");
112 GetConsoleScreenBufferInfo(con, &con_info);
113 attr_orig = con_info.wAttributes;
114 background = attr_orig & 0xF0;
117 use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
118 (getenv("TERM") && isatty(2) ||
119 getenv("AV_LOG_FORCE_COLOR"));
120 if (getenv("AV_LOG_FORCE_256COLOR"))
123 use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
124 !getenv("AV_LOG_FORCE_NOCOLOR");
128 if (use_color == 1) {
130 } else if (use_color == 256)
138 const char *av_default_item_name(void *ptr)
140 return (*(AVClass **) ptr)->class_name;
143 AVClassCategory av_default_get_category(void *ptr)
145 return (*(AVClass **) ptr)->category;
148 static void sanitize(uint8_t *line){
150 if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
156 static int get_category(void *ptr){
157 AVClass *avc = *(AVClass **) ptr;
159 || (avc->version&0xFF)<100
160 || avc->version < (51 << 16 | 59 << 8)
161 || avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
163 if(avc->get_category)
164 return avc->get_category(ptr) + 16;
166 return avc->category + 16;
169 static void format_line(void *ptr, int level, const char *fmt, va_list vl,
170 char part[3][LINE_SZ], int part_size, int *print_prefix, int type[2])
172 AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
173 part[0][0] = part[1][0] = part[2][0] = 0;
174 if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
175 if (*print_prefix && avc) {
176 if (avc->parent_log_context_offset) {
177 AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
178 avc->parent_log_context_offset);
179 if (parent && *parent) {
180 snprintf(part[0], part_size, "[%s @ %p] ",
181 (*parent)->item_name(parent), parent);
182 if(type) type[0] = get_category(((uint8_t *) ptr) + avc->parent_log_context_offset);
185 snprintf(part[1], part_size, "[%s @ %p] ",
186 avc->item_name(ptr), ptr);
187 if(type) type[1] = get_category(ptr);
190 vsnprintf(part[2], part_size, fmt, vl);
192 *print_prefix = strlen(part[2]) && part[2][strlen(part[2]) - 1] == '\n';
195 void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
196 char *line, int line_size, int *print_prefix)
198 char part[3][LINE_SZ];
199 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), print_prefix, NULL);
200 snprintf(line, line_size, "%s%s%s", part[0], part[1], part[2]);
203 void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
205 static int print_prefix = 1;
207 static char prev[LINE_SZ];
208 char part[3][LINE_SZ];
213 if (level > av_log_level)
215 format_line(ptr, level, fmt, vl, part, sizeof(part[0]), &print_prefix, type);
216 snprintf(line, sizeof(line), "%s%s%s", part[0], part[1], part[2]);
220 is_atty = isatty(2) ? 1 : -1;
224 if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
227 fprintf(stderr, " Last message repeated %d times\r", count);
231 fprintf(stderr, " Last message repeated %d times\n", count);
236 colored_fputs(type[0], part[0]);
238 colored_fputs(type[1], part[1]);
240 colored_fputs(av_clip(level >> 3, 0, 6), part[2]);
243 static void (*av_log_callback)(void*, int, const char*, va_list) =
244 av_log_default_callback;
246 void av_log(void* avcl, int level, const char *fmt, ...)
248 AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
251 if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
252 avc->log_level_offset_offset && level >= AV_LOG_FATAL)
253 level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
254 av_vlog(avcl, level, fmt, vl);
258 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
261 av_log_callback(avcl, level, fmt, vl);
264 int av_log_get_level(void)
269 void av_log_set_level(int level)
271 av_log_level = level;
274 void av_log_set_flags(int arg)
279 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
281 av_log_callback = callback;