NAME

       vamps - Tool to recompress and modify the structure of a DVD

SYNOPSIS

       vamps    [--evaporate|-e    factor]    [--ps-evaporate|-E    factor]   [--audio|-a   a-streama-stream...]
       [--subpictures|-s s-stream,s-stream,...]  [--verbose|-v]  [--inject|-i  injections-file]  [--preserve|-p]
       [--ps-size|-S input-bytes] <input>output ...

DESCRIPTION

       Vamps was written to make cheap backups of DVDs under Linux.

       Vamps builds a wrapper around the requantizer to extract the elementary MPEG2 video stream from the DVD's
       program stream, feed it through the requantizer and finally re-pack it into  the  program  stream  again.
       Besides  this,  Vamps  allows  to select audio and subtitle streams that should be copied into the output
       stream. This gives another small gain of disk space, since unwanted streams may be discarded.

       Vamps is only a very basic, but nevertheless essential tool to transcode DVD videos to  a  smaller  size.
       Vamps  does  not need to write temporary data files, which is a major advantage.  Vamps is very fast. The
       downside is, that Vamps is not capable of making DVD backups on its own.

OPTIONS

       For options that require an argument, each duplication will override the previous argument value.

       --evaporate, -e factor
              factor by which the embedded elementary video stream will approximately be shrunk (>=1.0)

       --ps-evaporate, -E factor
              factor by which the whole program stream will approximately  be  shrunk  (>=1.0)  -e  and  -E  are
              mutually exclusive.

       --audio, -a a-streama-stream...
              select audio streams to keep. First stream is 1.

       --subpictures, -s s-streams-stream...
              select subtitle streams to keep. First stream is 1.

       --verbose, -v
              Increase verbosity level by one.

       --inject, -i injections-file
              Load  internal  variable  settings  from  file to seamlessly continue previous run. Write internal
              variables to file at program termination.  If file does not exist, it is created. Useful to shrink
              several parts (chapters, titles) to a single target DVD.

       --preserve, -p
              Preserve  numbering  of audio and subtitle streams. If called without this option, Vamps renumbers
              the streams to ascending numbers starting with 1. This option disables renumbering so the original
              stream numbers are kept.

       --ps-size, -S input-bytes
              If the input for Vamps does not come from a file (e.g. a pipe), the size of the full input program
              stream *MUST* be supplied in the command line. Size is in bytes.

AUTHORS

       This manual page was written by Claudio Moratti <maxer@knio.it> for the Debian system (but may be used by
       others).  It was slightly modified by Rogerio Brito <rbrito@ime.usp.br>.  This document is released under
       the terms of the GNU General Public License, Version 2 and later.