PeerStreamer

/*

 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * FFmpeg is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef FFMPEG_LOG_H

#define FFMPEG_LOG_H

#include <stdarg.h>

/**

 * Used by av_log

 */

typedef struct AVCLASS AVClass;

struct AVCLASS {

    const char* class_name;

    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext

                                        or AVFormatContext, which begin with an AVClass.

                                        Needed because av_log is in libavcodec and has no visibility

                                        of AVIn/OutputFormat */

    const struct AVOption *option;

};

/* av_log API */

#if LIBAVUTIL_VERSION_INT < (50<<16)

#define AV_LOG_QUIET -1

#define AV_LOG_FATAL 0

#define AV_LOG_ERROR 0

#define AV_LOG_WARNING 1

#define AV_LOG_INFO 1

#define AV_LOG_VERBOSE 1

#define AV_LOG_DEBUG 2

#else

#define AV_LOG_QUIET    -8

/**

 * something went really wrong and we will crash now

 */

#define AV_LOG_PANIC     0

/**

 * something went wrong and recovery is not possible

 * like no header in a format which depends on it or a combination

 * of parameters which are not allowed

 */

#define AV_LOG_FATAL     8

/**

 * something went wrong and cannot losslessly be recovered

 * but not all future data is affected

 */

#define AV_LOG_ERROR    16

/**

 * something somehow does not look correct / something which may or may not

 * lead to some problems like use of -vstrict -2

 */

#define AV_LOG_WARNING  24

#define AV_LOG_INFO     32

#define AV_LOG_VERBOSE  40

/**

 * stuff which is only useful for libav* developers

 */

#define AV_LOG_DEBUG    48

#endif

#if LIBAVUTIL_VERSION_INT < (50<<16)

extern int av_log_level;

#endif

/**

 * Send the specified message to the log if the level is less than or equal to

 * the current av_log_level. By default, all logging messages are sent to

 * stderr. This behavior can be altered by setting a different av_vlog callback

 * function.

 *

 * @param avcl A pointer to an arbitrary struct of which the first field is a

 * pointer to an AVClass struct.

 * @param level The importance level of the message, lower values signifying

 * higher importance.

 * @param fmt The format string (printf-compatible) that specifies how

 * subsequent arguments are converted to output.

 * @see av_vlog

 */

#ifdef __GNUC__

void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));

#else

void av_log(void*, int level, const char *fmt, ...);

#endif

void av_vlog(void*, int level, const char *fmt, va_list);

int av_log_get_level(void);

void av_log_set_level(int);

void av_log_set_callback(void (*)(void*, int, const char*, va_list));

void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);

#endif /* FFMPEG_LOG_H */