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116 lines
3.5 KiB
116 lines
3.5 KiB
/* |
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* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef LOG_H |
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#define LOG_H |
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#include <stdarg.h> |
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/** |
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* Used by av_log |
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*/ |
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typedef struct AVCLASS AVClass; |
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struct AVCLASS { |
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const char* class_name; |
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const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext |
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or AVFormatContext, which begin with an AVClass. |
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Needed because av_log is in libavcodec and has no visibility |
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of AVIn/OutputFormat */ |
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const struct AVOption *option; |
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}; |
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/* av_log API */ |
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#if LIBAVUTIL_VERSION_INT < (50<<16) |
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#define AV_LOG_QUIET -1 |
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#define AV_LOG_FATAL 0 |
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#define AV_LOG_ERROR 0 |
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#define AV_LOG_WARNING 1 |
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#define AV_LOG_INFO 1 |
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#define AV_LOG_VERBOSE 1 |
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#define AV_LOG_DEBUG 2 |
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#else |
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#define AV_LOG_QUIET -8 |
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/** |
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* something went really wrong and we will crash now |
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*/ |
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#define AV_LOG_PANIC 0 |
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/** |
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* something went wrong and recovery is not possible |
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* like no header in a format which depends on it or a combination |
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* of parameters which are not allowed |
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*/ |
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#define AV_LOG_FATAL 8 |
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/** |
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* something went wrong and cannot losslessly be recovered |
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* but not all future data is affected |
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*/ |
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#define AV_LOG_ERROR 16 |
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/** |
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* something somehow does not look correct / something which may or may not |
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* lead to some problems like use of -vstrict -2 |
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*/ |
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#define AV_LOG_WARNING 24 |
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#define AV_LOG_INFO 32 |
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#define AV_LOG_VERBOSE 40 |
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/** |
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* stuff which is only useful for libav* developers |
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*/ |
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#define AV_LOG_DEBUG 48 |
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#endif |
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extern int av_log_level; |
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/** |
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* Send the specified message to the log if the level is less than or equal to |
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* the current av_log_level. By default, all logging messages are sent to |
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* stderr. This behavior can be altered by setting a different av_vlog callback |
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* function. |
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* |
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* @param avcl A pointer to an arbitrary struct of which the first field is a |
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* pointer to an AVClass struct. |
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* @param level The importance level of the message, lower values signifying |
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* higher importance. |
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* @param fmt The format string (printf-compatible) that specifies how |
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* subsequent arguments are converted to output. |
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* @see av_vlog |
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*/ |
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#ifdef __GNUC__ |
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extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4))); |
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#else |
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extern void av_log(void*, int level, const char *fmt, ...); |
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#endif |
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#if LIBAVUTIL_VERSION_INT < (50<<16) |
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extern void av_vlog(void*, int level, const char *fmt, va_list); |
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extern int av_log_get_level(void); |
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extern void av_log_set_level(int); |
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extern void av_log_set_callback(void (*)(void*, int, const char*, va_list)); |
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extern void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl); |
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#else |
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extern void (*av_vlog)(void*, int, const char*, va_list); |
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#endif |
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#endif /* LOG_H */
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