each line, specifying a sequence of options which can be specified also on
the command line. Lines starting with the hash ('#') character are ignored and
are used to provide comments. Empty lines are also ignored. Check the
-@file{ffpresets} directory in the Libav source tree for examples.
+@file{presets} directory in the Libav source tree for examples.
Preset files are specified with the @code{pre} option, this option takes a
preset name as input. Avconv searches for a file named @var{preset_name}.avpreset in