Module pnmixerlib::support_audio [−] [src]

Helper functions of the audio subsystem.

These functions are not directly connected to the Audio struct, but are important helpers.

Enums

The direction of a volume change.

audio_reload	Reload the audio system.
get_playable_card_names	Get all playable card names.
get_playable_chan_names	Get all playable channel names.
lrint	Kinda mimics `lrint` from libm. If the direction of the volume change is `Up` then calls `ceil()`, if it's `Down`, then calls `floor()`, otherwise returns the value unchanged.
percent_to_vol	Converts the percentage of the volume level (0-100) back to the actual low-level representation of the volume, which depends on the volume range.
vol_change_to_voldir	Convert a volume change to the `VolDir` type.
vol_to_percent	Converts the actual volume of the audio configuration, which depends on the volume range, to a scale of 0-100, reprenting the percentage of the volume level.