avutil.h File Reference

Convenience header that includes libavutil's core. More...

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

Go to the source code of this file.

Macros
#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_t)UINT64_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...
#define	av_int_list_length(list, term)    av_int_list_length_for_size(sizeof(*(list)), list, term)
	Compute the length of an integer list. More...
#define	AV_FOURCC_MAX_STRING_SIZE   32
#define	av_fourcc2str(fourcc)   av_fourcc_make_string((char[AV_FOURCC_MAX_STRING_SIZE]){0}, fourcc)

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. More...
const char *	av_version_info (void)
	Return an informative version string. More...
const char *	avutil_configuration (void)
	Return the libavutil build-time configuration. More...
const char *	avutil_license (void)
	Return the libavutil license. More...
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. More...
char	av_get_picture_type_char (enum AVPictureType pict_type)
	Return a single letter to describe the given picture type pict_type. More...
static void *	av_x_if_null (const void *p, const void *x)
	Return x default pointer in case p is NULL. More...
unsigned	av_int_list_length_for_size (unsigned elsize, const void *list, uint64_t term) av_pure
	Compute the length of an integer list. More...
attribute_deprecated FILE *	av_fopen_utf8 (const char *path, const char *mode)
	Open a file using a UTF-8 filename. More...
AVRational	av_get_time_base_q (void)
	Return the fractional representation of the internal time base. More...
char *	av_fourcc_make_string (char *buf, uint32_t fourcc)
	Fill the provided buffer with a string containing a FourCC (four-character code) representation. More...

Detailed Description

Convenience header that includes libavutil's core.

Definition in file avutil.h.