====== MPGLen ======

The MPEG file format has no index or length information embedded. This makes it impossible to know the playing time of the file.

This program will scan a MPEG file and count the number of GOPs and frames. When combined with another tool which reports framerate information, like mpginfo, the exact playing time can be calculated.

{{sw:mpglen.tar.gz}}

  usage: mpglen [-a] [-c size] [-d] [-e] [-f] [-g] [-h] [-p] [-t] file [file] ...
  -a          show n total for all files processed as "Total #frames #GOPs\n".
  -c size     process file(s) in chunks of <size> Mb. (Default 4)
  -d          emit debugging messages on stderr.
  -e          easily parseable output "#frames #GOPs filename\n".
  -f          only print "#frames\n".
  -g          only print "#GOPs\n".
  -p          emit progress report as each chunk is processed.
  -t          terse output, only prints "#frames #GOPs\n".
  -h          show this usage message.
  Setting -d as the first argument will show argument parsing, too.
  If you use -s, the exit code will report success(0) or failure(-1)
  Exit codes: 0=Success  -1=Parse error  -2=m[un]map error  -3=Other