mention raw Chinese AVS video demuxer
[libav.git] / libavutil / log.c
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1/*
2 * log functions
3 * Copyright (c) 2003 Michel Bardiaux
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
4b45de0e 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
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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
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
bad5537e 23 * @file libavutil/log.c
7d685b48 24 * logging functions
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25 */
26
27#include "avutil.h"
77652a6a 28#include "log.h"
4b45de0e 29
918a4591 30int av_log_level = AV_LOG_INFO;
4b45de0e 31
411983c1 32void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
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33{
34 static int print_prefix=1;
35 AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
36 if(level>av_log_level)
37 return;
38#undef fprintf
39 if(print_prefix && avc) {
2daefd2c 40 fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), ptr);
4b45de0e 41 }
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42
43 print_prefix= strstr(fmt, "\n") != NULL;
44
45 vfprintf(stderr, fmt, vl);
46}
47
48static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
49
50void av_log(void* avcl, int level, const char *fmt, ...)
51{
52 va_list vl;
53 va_start(vl, fmt);
54 av_vlog(avcl, level, fmt, vl);
55 va_end(vl);
56}
57
58void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
59{
60 av_log_callback(avcl, level, fmt, vl);
61}
62
63int av_log_get_level(void)
64{
65 return av_log_level;
66}
67
68void av_log_set_level(int level)
69{
70 av_log_level = level;
71}
72
73void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
74{
75 av_log_callback = callback;
76}