MPEG-4 Scene Encoding Options
 -mp4                 specify input file is for encoding.
 -def                 encode DEF names
 -sync time_in_ms     forces BIFS sync sample generation every time_in_ms
                       * Note: cannot be used with -shadow
 -shadow time_ms      forces BIFS sync shadow sample generation every time_ms.
                       * Note: cannot be used with -sync
 -log                 generates scene codec log file if available
 -ms file             specifies file for track importing

Chunk Processing
 -ctx-in file         specifies initial context (MP4/BT/XMT)
                       * Note: input file must be a commands-only file
 -ctx-out file        specifies storage of updated context (MP4/BT/XMT)

LASeR Encoding options
 -resolution res      resolution factor (-8 to 7, default 0)
                       all coords are multiplied by 2^res before truncation
 -coord-bits bits     bits used for encoding truncated coordinates
                       (0 to 31, default 12)
 -scale-bits bits     extra bits used for encoding truncated scales
                       (0 to 4, default 0)
 -auto-quant res      resolution is given as if using -resolution
                       but coord-bits and scale-bits are infered
