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Data Structures | Macros | Enumerations | Functions
log.h File Reference
#include <stdarg.h>
#include "attributes.h"
#include "version.h"

Go to the source code of this file.

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.
 

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) }
 

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:
@ AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
Definition log.h:42
@ AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT
Definition log.h:44
@ AV_CLASS_CATEGORY_DEVICE_INPUT
Definition log.h:46
category
Definition openal-dec.c:249

Definition at line 59 of file log.h.

Referenced by ff_alloc_input_device_context(), and is_device().

◆  AV_IS_OUTPUT_DEVICE

#define AV_IS_OUTPUT_DEVICE ( category )
Value:
@ AV_CLASS_CATEGORY_DEVICE_OUTPUT
Definition log.h:45
@ AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT
Definition log.h:43
@ AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT
Definition log.h:41

Definition at line 64 of file log.h.

Referenced by is_device().

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.

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