avutil.h File Reference

external API header More...

#include "common.h"
#include "error.h"

Go to the source code of this file.

Macros

#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 LIBAVUTIL_VERSION_MAJOR   51
 
#define LIBAVUTIL_VERSION_MINOR   22
 
#define LIBAVUTIL_VERSION_MICRO   1
 
#define LIBAVUTIL_VERSION_INT
 
#define LIBAVUTIL_VERSION
 
#define LIBAVUTIL_BUILD   LIBAVUTIL_VERSION_INT
 
#define LIBAVUTIL_IDENT   "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
 
#define FF_API_GET_BITS_PER_SAMPLE_FMT   (LIBAVUTIL_VERSION_MAJOR < 52)
 
#define FF_API_FIND_OPT   (LIBAVUTIL_VERSION_MAJOR < 52)
 
#define FF_API_AV_FIFO_PEEK   (LIBAVUTIL_VERSION_MAJOR < 52)
 
#define FF_API_OLD_AVOPTIONS   (LIBAVUTIL_VERSION_MAJOR < 52)
 
#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 More...
 
#define FF_LAMBDA_MAX   (256*128-1)
 
#define FF_QUALITY_SCALE   FF_LAMBDA_SCALE
 
#define AV_NOPTS_VALUE   INT64_C(0x8000000000000000)
 Undefined timestamp value. More...
 
#define AV_TIME_BASE   1000000
 Internal time base represented as integer. More...
 
#define AV_TIME_BASE_Q   (AVRational){1, AV_TIME_BASE}
 Internal time base represented as fractional value. More...
 

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_I = 1, 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. More...
 
const char * avutil_configuration (void)
 Return the libavutil build-time configuration. More...
 
const char * avutil_license (void)
 Return the libavutil license. More...
 
char av_get_picture_type_char (enum AVPictureType pict_type)
 Return a single letter to describe the given picture type pict_type. More...
 

Detailed Description

external API header

Definition in file avutil.h.