BeOS cleanup
[libav.git] / libavutil / log.h
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1/*
2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3 *
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4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
b78e7197 9 * version 2.1 of the License, or (at your option) any later version.
04d7f601 10 *
b78e7197 11 * FFmpeg is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
b78e7197 17 * License along with FFmpeg; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
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21#ifndef LOG_H
22#define LOG_H
23
24#include <stdarg.h>
25
26/**
27 * Used by av_log
28 */
29typedef struct AVCLASS AVClass;
30struct AVCLASS {
31 const char* class_name;
32 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
33 or AVFormatContext, which begin with an AVClass.
34 Needed because av_log is in libavcodec and has no visibility
35 of AVIn/OutputFormat */
3666f75d 36 const struct AVOption *option;
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37};
38
39/* av_log API */
40
41#define AV_LOG_QUIET -1
42#define AV_LOG_ERROR 0
43#define AV_LOG_INFO 1
44#define AV_LOG_DEBUG 2
918a4591 45extern int av_log_level;
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46
47#ifdef __GNUC__
48extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
49#else
50extern void av_log(void*, int level, const char *fmt, ...);
51#endif
52
918a4591 53#if LIBAVUTIL_VERSION_INT < (50<<16)
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54extern void av_vlog(void*, int level, const char *fmt, va_list);
55extern int av_log_get_level(void);
56extern void av_log_set_level(int);
57extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
411983c1 58extern void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
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59#else
60extern void (*av_vlog)(void*, int, const char*, va_list);
61#endif
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62
63#endif /* LOG_H */