nengel@2: /*
nengel@2:  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_LOG_H
nengel@2: #define AVUTIL_LOG_H
nengel@2: 
nengel@2: #include <stdarg.h>
nengel@2: //#include "avutil.h"
nengel@2: 
nengel@2: /**
nengel@2:  * Describes the class of an AVClass context structure. That is an
nengel@2:  * arbitrary struct of which the first field is a pointer to an
nengel@2:  * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
nengel@2:  */
nengel@2: typedef struct {
nengel@2:     /**
nengel@2:      * The name of the class; usually it is the same name as the
nengel@2:      * context structure type to which the AVClass is associated.
nengel@2:      */
nengel@2:     const char* class_name;
nengel@2: 
nengel@2:     /**
nengel@2:      * A pointer to a function which returns the name of a context
nengel@2:      * instance ctx associated with the class.
nengel@2:      */
nengel@2:     const char* (*item_name)(void* ctx);
nengel@2: 
nengel@2:     /**
nengel@2:      * a pointer to the first option specified in the class if any or NULL
nengel@2:      *
nengel@2:      * @see av_set_default_options()
nengel@2:      */
nengel@2:     const struct AVOption *option;
nengel@2: 
nengel@2:     /**
nengel@2:      * LIBAVUTIL_VERSION with which this structure was created.
nengel@2:      * This is used to allow fields to be added without requiring major
nengel@2:      * version bumps everywhere.
nengel@2:      */
nengel@2: 
nengel@2:     int version;
nengel@2: } AVClass;
nengel@2: 
nengel@2: /* av_log API */
nengel@2: 
nengel@2: #define AV_LOG_QUIET    -8
nengel@2: 
nengel@2: /**
nengel@2:  * Something went really wrong and we will crash now.
nengel@2:  */
nengel@2: #define AV_LOG_PANIC     0
nengel@2: 
nengel@2: /**
nengel@2:  * Something went wrong and recovery is not possible.
nengel@2:  * For example, no header was found for a format which depends
nengel@2:  * on headers or an illegal combination of parameters is used.
nengel@2:  */
nengel@2: #define AV_LOG_FATAL     8
nengel@2: 
nengel@2: /**
nengel@2:  * Something went wrong and cannot losslessly be recovered.
nengel@2:  * However, not all future data is affected.
nengel@2:  */
nengel@2: #define AV_LOG_ERROR    16
nengel@2: 
nengel@2: /**
nengel@2:  * Something somehow does not look correct. This may or may not
nengel@2:  * lead to problems. An example would be the use of '-vstrict -2'.
nengel@2:  */
nengel@2: #define AV_LOG_WARNING  24
nengel@2: 
nengel@2: #define AV_LOG_INFO     32
nengel@2: #define AV_LOG_VERBOSE  40
nengel@2: 
nengel@2: /**
nengel@2:  * Stuff which is only useful for libav* developers.
nengel@2:  */
nengel@2: #define AV_LOG_DEBUG    48
nengel@2: 
nengel@2: /**
nengel@2:  * Sends the specified message to the log if the level is less than or equal
nengel@2:  * to the current av_log_level. By default, all logging messages are sent to
nengel@2:  * stderr. This behavior can be altered by setting a different av_vlog callback
nengel@2:  * function.
nengel@2:  *
nengel@2:  * @param avcl A pointer to an arbitrary struct of which the first field is a
nengel@2:  * pointer to an AVClass struct.
nengel@2:  * @param level The importance level of the message, lower values signifying
nengel@2:  * higher importance.
nengel@2:  * @param fmt The format string (printf-compatible) that specifies how
nengel@2:  * subsequent arguments are converted to output.
nengel@2:  * @see av_vlog
nengel@2:  */
nengel@2: 
nengel@2: void av_log(int level, const char *fmt, ...);
nengel@2: 
nengel@2: void av_vlog(int level, const char *fmt, va_list);
nengel@2: int av_log_get_level(void);
nengel@2: void av_log_set_level(int);
nengel@2: void av_log_set_callback(void (*)(int, const char*, va_list));
nengel@2: void av_log_default_callback(int level, const char* fmt, va_list vl);
nengel@2: 
nengel@2: #endif /* AVUTIL_LOG_H */