#include <stdarg.h>
#include "attributes.h"
#include "version.h"

Data Structures
struct	AVClass
	Describe the class of an AVClass context structure. More...

Macros
#define	AV_IS_INPUT_DEVICE(category)
#define	AV_IS_OUTPUT_DEVICE(category)
#define	AV_LOG_QUIET -8
	Print no output.
#define	AV_LOG_PANIC 0
	Something went really wrong and we will crash now.
#define	AV_LOG_FATAL 8
	Something went wrong and recovery is not possible.
#define	AV_LOG_ERROR 16
	Something went wrong and cannot losslessly be recovered.
#define	AV_LOG_WARNING 24
	Something somehow does not look correct.
#define	AV_LOG_INFO 32
	Standard information.
#define	AV_LOG_VERBOSE 40
	Detailed information.
#define	AV_LOG_DEBUG 48
	Stuff which is only useful for libav* developers.
#define	AV_LOG_TRACE 56
	Extremely verbose debugging, useful for libav* development.
#define	AV_LOG_MAX_OFFSET (AV_LOG_TRACE - AV_LOG_QUIET)
#define	AV_LOG_C(x)
	Sets additional colors for extended debugging sessions.
#define	AV_LOG_SKIP_REPEATED 1
	Skip repeated messages, this requires the user app to use av_log() instead of (f)printf as the 2 would otherwise interfere and lead to "Last message repeated x times" messages below (f)printf messages with some bad luck.
#define	AV_LOG_PRINT_LEVEL 2
	Include the log severity in messages originating from codecs.
#define	AV_LOG_PRINT_TIME 4
	Include system time in log output.
#define	AV_LOG_PRINT_DATETIME 8
	Include system date and time in log output.

Functions
void	av_log (void avcl, int level, const char fmt,...) av_printf_format(3
	Send the specified message to the log if the level is less than or equal to the current av_log_level.
void void	av_log_once (void avcl, int initial_level, int subsequent_level, int state, const char *fmt,...) av_printf_format(5
	Send the specified message to the log once with the initial_level and then with the subsequent_level.
void void void	av_vlog (void avcl, int level, const char fmt, va_list vl)
	Send the specified message to the log if the level is less than or equal to the current av_log_level.
int	av_log_get_level (void)
	Get the current log level.
void	av_log_set_level (int level)
	Set the log level.
void	av_log_set_callback (void(callback)(void , int, const char *, va_list))
	Set the logging callback.
void	av_log_default_callback (void avcl, int level, const char fmt, va_list vl)
	Default logging callback.
const char *	av_default_item_name (void *ctx)
	Return the context name.
AVClassCategory	av_default_get_category (void *ptr)
void	av_log_format_line (void ptr, int level, const char fmt, va_list vl, char line, int line_size, int print_prefix)
	Format a line of log the same way as the default callback.
int	av_log_format_line2 (void ptr, int level, const char fmt, va_list vl, char line, int line_size, int print_prefix)
	Format a line of log the same way as the default callback.
void	av_log_set_flags (int arg)
int	av_log_get_flags (void)

Macro Definition Documentation

◆ AV_IS_INPUT_DEVICE

#define AV_IS_INPUT_DEVICE ( category )

Value:

    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_INPUT))

Definition at line 59 of file log.h.

◆ AV_IS_OUTPUT_DEVICE

#define AV_IS_OUTPUT_DEVICE ( category )

Value:

    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT) || \
     ((category) == AV_CLASS_CATEGORY_DEVICE_OUTPUT))

Definition at line 64 of file log.h.

Enumeration Type Documentation

◆ AVClassCategory

enum AVClassCategory

Enumerator
AV_CLASS_CATEGORY_NA
AV_CLASS_CATEGORY_INPUT
AV_CLASS_CATEGORY_OUTPUT
AV_CLASS_CATEGORY_MUXER
AV_CLASS_CATEGORY_DEMUXER
AV_CLASS_CATEGORY_ENCODER
AV_CLASS_CATEGORY_DECODER
AV_CLASS_CATEGORY_FILTER
AV_CLASS_CATEGORY_BITSTREAM_FILTER
AV_CLASS_CATEGORY_SWSCALER
AV_CLASS_CATEGORY_SWRESAMPLER
AV_CLASS_CATEGORY_HWDEVICE
AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT
AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT
AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT
AV_CLASS_CATEGORY_DEVICE_OUTPUT
AV_CLASS_CATEGORY_DEVICE_INPUT
AV_CLASS_CATEGORY_NB	not part of ABI/API

Definition at line 28 of file log.h.

◆ AVClassStateFlags

enum AVClassStateFlags

Enumerator

AV_CLASS_STATE_INITIALIZED

Object initialization has finished and it is now in the 'runtime' stage.

This affects e.g. what options can be set on the object (only AV_OPT_FLAG_RUNTIME_PARAM options can be set on initialized objects).

Definition at line 50 of file log.h.

Enumerations
enum	AVClassCategory { AV_CLASS_CATEGORY_NA = 0 , AV_CLASS_CATEGORY_INPUT , AV_CLASS_CATEGORY_OUTPUT , AV_CLASS_CATEGORY_MUXER , AV_CLASS_CATEGORY_DEMUXER , AV_CLASS_CATEGORY_ENCODER , AV_CLASS_CATEGORY_DECODER , AV_CLASS_CATEGORY_FILTER , AV_CLASS_CATEGORY_BITSTREAM_FILTER , AV_CLASS_CATEGORY_SWSCALER , AV_CLASS_CATEGORY_SWRESAMPLER , AV_CLASS_CATEGORY_HWDEVICE , AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT = 40 , AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT , AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT , AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT , AV_CLASS_CATEGORY_DEVICE_OUTPUT , AV_CLASS_CATEGORY_DEVICE_INPUT , AV_CLASS_CATEGORY_NB }
enum	AVClassStateFlags { AV_CLASS_STATE_INITIALIZED = (1 << 0) }

Data Structures

Macros