path: root/nuttx/audio/Kconfig

#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

config AUDIO
	bool "Audio Support"
	default n
	---help---
		Enables overall support for Audio library.

if AUDIO

config AUDIO_NCHANNELS
	int "Number of Audio Channels"
	default 2
	---help---
		Stereo channel support is standard, but some systems may support 5 or 7
		channel capability.

config AUDIO_LARGE_BUFFERS
	bool "Support Audio Buffers with greater than 65K samples"
	default n
	---help---
		By default, the Audio Pipeline Buffer uses a 16-bit max sample count, limiting
		the number of samples per buffer to 65K.  Enable this option to specify a
		32-bit max sample count for increased samples / buffer capability.
		channel capability.

config AUDIO_CUSTOM_DEV_PATH
	bool "Use custom device path"
	default n
	---help---
		By default, all audio devices on the target are are registered in the
		/dev/audio directory.  Select this option to change the default location
		for the device registration.

if AUDIO_CUSTOM_DEV_PATH

config AUDIO_DEV_ROOT
	bool "Place audio devices in /dev"
	default n
	---help---
		This option causes all device entries to appear in /dev with all the
		other device entries.  This option generates the smallest code and
		RAM footprint.

if !AUDIO_DEV_ROOT

config AUDIO_DEV_PATH
	string "Base path for Audio devices"
	default "/dev/audio"
	---help---
		The path on the target where audio devices are registered.  The default
		is to place all audio devices in the /dev/audio/ directory.

endif
endif

menu "Supported Audio Formats"

config AUDIO_FORMAT_PCM
	bool "PCM Audio"
	default y
	---help---
		Build in support for PCM Audio format.

config AUDIO_FORMAT_MP3
	bool "MPEG 3 Layer 1"
	default n
	---help---
		Build in support for MP3 Audio format.

config AUDIO_FORMAT_WMA
	bool "WMA Format (see copyright notice)"
	default n
	---help---
		Add in support for Microsoft Windows Media format.

config AUDIO_FORMAT_OGG_VORBIS
	bool "Ogg Vorbis format"
	default n
	---help---
		Build in support for the Open Source Ogg Vorbis format.

endmenu

# These are here as placeholders of what could be added

if CONFIG_AUDIO_PLANNED

config AUDIO_MIXER
	bool "Planned - Enable support for the software based Audio Mixer"
	default n
	---help---
		The Audio mixer is a software-only based component that can be used
		to perform audio channel or device mixing.

config AUDIO_MIDI_SYNTH
	bool "Planned - Enable support for the software-based MIDI synthisizer"
	default n
	---help---
		Builds a simple MIDI synthisizer.

config AUDIO_OUTPUT_JACK_CONTROL
	bool "Planned - Enable support for output jack control"
	default n
	---help---
		Builds a simple MIDI synthisizer.

config AUDIO_FONT
	bool "Planned - Enable support for the Audio Font"
	default n
	---help---
		The Audio font provides common audio symbols.

endif

endif