@param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long
@param tc timecode data correctly initialized
@param framenum frame number
@return the buf parameter
@note Timecode representation can be a negative timecode and have more than
24 hours, but will only be honored if the flags are correctly set.
@note The frame number is relative to tc->start.
Load timecode string in buf.
@param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long @param tc timecode data correctly initialized @param framenum frame number @return the buf parameter
@note Timecode representation can be a negative timecode and have more than 24 hours, but will only be honored if the flags are correctly set. @note The frame number is relative to tc->start.