Misc types and constants that do not belong anywhere else. More...

#include <stdint.h>
#include <stdlib.h>

Data Structures
struct	AVPanScan
	Pan Scan area. More...

struct	AVCPBProperties
	This structure describes the bitrate properties of an encoded bitstream. More...

struct	AVProducerReferenceTime
	This structure supplies correlation between a packet timestamp and a wall clock production time. More...

Macros
#define	AV_INPUT_BUFFER_PADDING_SIZE 64
	Required number of additionally allocated bytes at the end of the input bitstream for decoding.

#define	AV_EF_CRCCHECK (1<<0)
	Verify checksums embedded in the bitstream (could be of either encoded or decoded data, depending on the format) and print an error message on mismatch.

#define	AV_EF_BITSTREAM (1<<1)
	detect bitstream specification deviations

#define	AV_EF_BUFFER (1<<2)
	detect improper bitstream length

#define	AV_EF_EXPLODE (1<<3)
	abort decoding on minor error detection

#define	AV_EF_IGNORE_ERR (1<<15)
	ignore errors and continue

#define	AV_EF_CAREFUL (1<<16)
	consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors

#define	AV_EF_COMPLIANT (1<<17)
	consider all spec non compliances as errors

#define	AV_EF_AGGRESSIVE (1<<18)
	consider things that a sane encoder/muxer should not do as an error

#define	FF_COMPLIANCE_VERY_STRICT 2
	Strictly conform to an older more strict version of the spec or reference software.

#define	FF_COMPLIANCE_STRICT 1
	Strictly conform to all the things in the spec no matter what consequences.

#define	FF_COMPLIANCE_NORMAL 0

#define	FF_COMPLIANCE_UNOFFICIAL -1
	Allow unofficial extensions.

#define	FF_COMPLIANCE_EXPERIMENTAL -2
	Allow nonstandardized experimental things.

Enumerations
enum	AVDiscard { AVDISCARD_NONE =-16 , AVDISCARD_DEFAULT = 0 , AVDISCARD_NONREF = 8 , AVDISCARD_BIDIR = 16 , AVDISCARD_NONINTRA = 24 , AVDISCARD_NONKEY = 32 , AVDISCARD_ALL = 48 }

enum	AVAudioServiceType { AV_AUDIO_SERVICE_TYPE_MAIN = 0 , AV_AUDIO_SERVICE_TYPE_EFFECTS = 1 , AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2 , AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3 , AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4 , AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5 , AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6 , AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7 , AV_AUDIO_SERVICE_TYPE_KARAOKE = 8 , AV_AUDIO_SERVICE_TYPE_NB }

Functions
AVCPBProperties *	av_cpb_properties_alloc (size_t *size)
	Allocate a CPB properties structure and initialize its fields to default values.

unsigned int	av_xiphlacing (unsigned char *s, unsigned int v)
	Encode extradata length to a buffer.

Detailed Description

Misc types and constants that do not belong anywhere else.

Definition in file defs.h.

Macro Definition Documentation

◆ AV_EF_CRCCHECK

#define AV_EF_CRCCHECK (1<<0)

Verify checksums embedded in the bitstream (could be of either encoded or decoded data, depending on the format) and print an error message on mismatch.

If AV_EF_EXPLODE is also set, a mismatching checksum will result in the decoder/demuxer returning an error.

Definition at line 48 of file defs.h.

◆ AV_EF_BITSTREAM

#define AV_EF_BITSTREAM (1<<1)

detect bitstream specification deviations

Definition at line 49 of file defs.h.

◆ AV_EF_BUFFER

#define AV_EF_BUFFER (1<<2)

detect improper bitstream length

Definition at line 50 of file defs.h.

◆ AV_EF_EXPLODE

#define AV_EF_EXPLODE (1<<3)

abort decoding on minor error detection

Definition at line 51 of file defs.h.

◆ AV_EF_IGNORE_ERR

#define AV_EF_IGNORE_ERR (1<<15)

ignore errors and continue

Definition at line 53 of file defs.h.

◆ AV_EF_CAREFUL

#define AV_EF_CAREFUL (1<<16)

consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors

Definition at line 54 of file defs.h.

◆ AV_EF_COMPLIANT

#define AV_EF_COMPLIANT (1<<17)

consider all spec non compliances as errors

Definition at line 55 of file defs.h.

◆ AV_EF_AGGRESSIVE

#define AV_EF_AGGRESSIVE (1<<18)

consider things that a sane encoder/muxer should not do as an error

Definition at line 56 of file defs.h.

◆ FF_COMPLIANCE_VERY_STRICT

#define FF_COMPLIANCE_VERY_STRICT 2

Strictly conform to an older more strict version of the spec or reference software.

Definition at line 58 of file defs.h.

◆ FF_COMPLIANCE_STRICT

#define FF_COMPLIANCE_STRICT 1

Strictly conform to all the things in the spec no matter what consequences.

Definition at line 59 of file defs.h.

◆ FF_COMPLIANCE_NORMAL

#define FF_COMPLIANCE_NORMAL 0

Definition at line 60 of file defs.h.

◆ FF_COMPLIANCE_UNOFFICIAL

#define FF_COMPLIANCE_UNOFFICIAL -1

Allow unofficial extensions.

Definition at line 61 of file defs.h.

◆ FF_COMPLIANCE_EXPERIMENTAL

#define FF_COMPLIANCE_EXPERIMENTAL -2

Allow nonstandardized experimental things.

Definition at line 62 of file defs.h.

Enumeration Type Documentation

◆ AVAudioServiceType

enum AVAudioServiceType

Enumerator
AV_AUDIO_SERVICE_TYPE_MAIN
AV_AUDIO_SERVICE_TYPE_EFFECTS
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED
AV_AUDIO_SERVICE_TYPE_DIALOGUE
AV_AUDIO_SERVICE_TYPE_COMMENTARY
AV_AUDIO_SERVICE_TYPE_EMERGENCY
AV_AUDIO_SERVICE_TYPE_VOICE_OVER
AV_AUDIO_SERVICE_TYPE_KARAOKE
AV_AUDIO_SERVICE_TYPE_NB	Not part of ABI.

Definition at line 79 of file defs.h.

Function Documentation

◆ av_cpb_properties_alloc()

AVCPBProperties * av_cpb_properties_alloc ( size_t * size )

Allocate a CPB properties structure and initialize its fields to default values.

Parameters

size	if non-NULL, the size of the allocated struct will be written here. This is useful for embedding it in side data.

Returns: the newly allocated struct or NULL on failure

◆ av_xiphlacing()

unsigned int av_xiphlacing	(	unsigned char *	s,
		unsigned int	v
	)

Encode extradata length to a buffer.

Used by xiph codecs.