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...