libavutil/avutil.h File Reference

external API header More...

#include "common.h"
#include "error.h"
#include "version.h"
#include "mathematics.h"
#include "rational.h"
#include "intfloat_readwrite.h"
#include "log.h"
#include "pixfmt.h"
#include "version.h"

Go to the source code of this file.

Defines
#define	AV_STRINGIFY(s)   AV_TOSTRING(s)
#define	AV_TOSTRING(s)   #s
#define	AV_GLUE(a, b)   a ## b
#define	AV_JOIN(a, b)   AV_GLUE(a, b)
#define	AV_PRAGMA(s)   _Pragma(#s)
#define	AV_VERSION_INT(a, b, c)   (a<<16 | b<<8 | c)
#define	AV_VERSION_DOT(a, b, c)   a ##.## b ##.## c
#define	AV_VERSION(a, b, c)   AV_VERSION_DOT(a, b, c)
#define	FF_LAMBDA_SHIFT   7
#define	FF_LAMBDA_SCALE   (1<<FF_LAMBDA_SHIFT)
#define	FF_QP2LAMBDA   118
	factor to convert from H.263 QP to lambda
#define	FF_LAMBDA_MAX   (256*128-1)
#define	FF_QUALITY_SCALE   FF_LAMBDA_SCALE
#define	AV_NOPTS_VALUE   ((int64_t)UINT64_C(0x8000000000000000))
	Undefined timestamp value.
#define	AV_TIME_BASE   1000000
	Internal time base represented as integer.
#define	AV_TIME_BASE_Q   (AVRational){1, AV_TIME_BASE}
	Internal time base represented as fractional value.
Enumerations
enum	AVMediaType {   AVMEDIA_TYPE_UNKNOWN = -1, AVMEDIA_TYPE_VIDEO, AVMEDIA_TYPE_AUDIO, AVMEDIA_TYPE_DATA,   AVMEDIA_TYPE_SUBTITLE, AVMEDIA_TYPE_ATTACHMENT, AVMEDIA_TYPE_NB }
enum	AVPictureType {   AV_PICTURE_TYPE_NONE = 0, AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B,   AV_PICTURE_TYPE_S, AV_PICTURE_TYPE_SI, AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_BI }
Functions
unsigned	avutil_version (void)
	Return the LIBAVUTIL_VERSION_INT constant.
const char *	avutil_configuration (void)
	Return the libavutil build-time configuration.
const char *	avutil_license (void)
	Return the libavutil license.
const char *	av_get_media_type_string (enum AVMediaType media_type)
	Return a string describing the media_type enum, NULL if media_type is unknown.
char	av_get_picture_type_char (enum AVPictureType pict_type)
	Return a single letter to describe the given picture type pict_type.
static void *	av_x_if_null (const void *p, const void *x)
	Return x default pointer in case p is NULL.

---

Detailed Description

external API header

Definition in file avutil.h.