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.


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