FFmpeg: libavcodec/defs.h File Reference

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libavcodec

Data Structures | Macros | Enumerations | Functions

defs.h File Reference

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

Go to the source code of this file.

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

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. More...

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

Encode extradata length to a buffer. More...

Detailed Description

Misc types and constants that do not belong anywhere else.

Definition in 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 57 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

Definition at line 1018 of file utils.c.

Referenced by ff_add_cpb_side_data(), and ff_mpv_encode_picture().

◆ av_xiphlacing()

unsigned int av_xiphlacing ( unsigned char * s,

unsigned int v

)

Encode extradata length to a buffer.

Used by xiph codecs.

Parameters: s buffer to write to; must be at least (v/255+1) bytes long

v size of extradata in bytes

Returns: number of bytes written to the buffer.

Definition at line 858 of file utils.c.

Referenced by fixup_vorbis_headers(), libvorbis_encode_init(), parse_packed_headers(), put_main_header(), and track_header().

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