SYNOPSIS

gbsplay [options] gbs-file [start-subsong [stop-subsong] ]

DESCRIPTION

gbsplay emulates the sound hardware of the Nintendo Gameboy. It is able to play the sounds from a Gameboy module dump (.GBS format) over /dev/dsp.

OPTIONS

-E endian

Set endian to endian. Valid values are b, l and n for big, little and native endian respectively.

-f fadeout-time

Set fadeout time to subsong-gap seconds. Instead of cutting of the subsong hard, do a soft fadeout. Default value is 3 seconds.

-g subsong-gap

Set subsong gap to subsong-gap seconds. Before playing the next subsong after the subsong timeout, play subsong-gap seconds of silence. Default value is 2 seconds.

-h

Display short help and exit.

-l

Enable loop mode. When the last subsong is played, playback starts again with the first subsong. Default is no loop.

-o plugin

Select sound output plugin plugin. Default depends on compilation options. Select list to view a list of all available output plugins.

-q

Be quieter, reduce verbosity. Can be applied multiple times. Default verbosity is 3.

-r samplerate

Set the samplerate to samplerate Hz. Default value is 44100Hz.

-R refresh-delay

Set the refresh delay to refresh-delay milliseconds. Default value is 33 milliseconds. Larger values will lower CPU usage, but things as subsong changes, fadeouts, reactions to keypresses and the on-screen display will be delayed.

-t subsong-timeout

Set subsong timeout to subsong-timeout seconds. When a subsong has been played for the given time, the player will skip to the next subsong. A timeout of 0 seconds disables automatic subsong changes. Default value is 120 seconds.

-T silence-timeout

Set silence timeout to silence-timeout seconds. When a subsong contains silence for the given time, the player will skip to the next subsong. Default value is 2 seconds.

-v

Increase verbosity, print more information. Can be applied multiple times. Default verbosity is 3.

-V

Display version number and exit.

-z

Play subsongs in shuffle mode. Every subsong will be played once in random order.

-Z

Play subsongs in random mode. Like shuffle mode, but a subsong can be played multiple times.

-1

Mute channel 1 on start.

-2

Mute channel 2 on start.

-3

Mute channel 3 on start.

-4

Mute channel 4 on start.

PARAMETERS

gbs-file

The sound file to play. Must be in uncompressed .GBS format.

start-subsong

The subsong from the sound file to play. If not specified, the default song will be played (unless in shuffle or random mode). An out-of-bounds number will be clipped to the possible range of subsongs.

stop-subsong

gbsplay stops when this subsong has been played. If not specified or out-of-bound, gbsplay will stop after playing the last subsong.

KEYBOARD CONTROL

gbsplay supports basic keyboard control. The following commands are recognized:

p

Skip to the previous subsong.

n

Skip to the next subsong.

q or Esc

Quit gbsplay.

Space

Toggle play/pause.

1

Mute/unmute channel 1.

2

Mute/unmute channel 2.

3

Mute/unmute channel 3.

4

Mute/unmute channel 4.

FILES

/etc/gbsplayrc

Default location of the global configuration file.

~/.gbsplayrc

User configuration file.

AUTHOR

gbsplay was written by Tobias Diedrich <[email protected]> (with contributions from others, see README).

COPYRIGHT

gbsplay is licensed under GNU GPL.