FFmpeg: libavutil/log.h File Reference

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. More...

#define AV_LOG_PRINT_LEVEL 2

Include the log severity in messages originating from codecs. More...

#define AV_LOG_PRINT_TIME 4

Include system time in log output. More...

#define AV_LOG_PRINT_DATETIME 8

Include system date and time in log output. More...

Enumerations

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. More...

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. More...

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. More...

int av_log_get_level (void)

Get the current log level. More...

void av_log_set_level (int level)

Set the log level. More...

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

Set the logging callback. More...

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

Default logging callback. More...

const char * av_default_item_name (void *ctx)

Return the context name. More...

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. More...

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. More...

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).

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.