@addtogroup lavu_media Media Type @brief Media Type
@} @} @defgroup lavu_picture Image related
Return a string describing the media_type enum, NULL if media_type is unknown.
Return a single letter to describe the given picture type pict_type.
Return an informative version string. This usually is the actual release version number or a git commit description. This string has no fixed format and can change any time. It should never be parsed by code.
Return the libavutil build-time configuration.
Return the libavutil license.
Return the LIBAVUTIL_VERSION_INT constant.
@brief Undefined timestamp value
Internal time base represented as integer
@defgroup lavu_const Constants @{
< factor to convert from H.263 QP to lambda
Internal time base represented as fractional value