ARDOUR::MidiChannelFilter Class Reference

#include <midi_channel_filter.h>

Public Member Functions
	MidiChannelFilter ()
void	filter (BufferSet &bufs)
bool	filter (uint8_t *buf, uint32_t len)
bool	set_channel_mode (ChannelMode mode, uint16_t mask)
bool	set_channel_mask (uint16_t mask)
void	get_mode_and_mask (ChannelMode *mode, uint16_t *mask) const
ChannelMode	get_channel_mode () const
uint16_t	get_channel_mask () const

Public Attributes
PBD::Signal0< void >	ChannelMaskChanged
PBD::Signal0< void >	ChannelModeChanged

Private Attributes
uint32_t	_mode_mask
	16 bits mode, 16 bits mask More...

Detailed Description

Filter/mapper for MIDI channels.

Channel mapping is configured by setting a mode and "mask", where the meaning of the mask depends on the mode.

If mode is FilterChannels, each mask bit represents a midi channel (bit 0 = channel 0, bit 1 = channel 1, ...). Only events whose channel corresponds to a 1 bit will be passed.

If mode is ForceChannel, mask is simply a channel number which all events will be forced to.

Definition at line 47 of file midi_channel_filter.h.

Constructor & Destructor Documentation

ARDOUR::MidiChannelFilter::MidiChannelFilter

(

)

Definition at line 27 of file midi_channel_filter.cc.

Member Function Documentation

void ARDOUR::MidiChannelFilter::filter

(

BufferSet &

bufs

)

Filter bufs in-place.

Definition at line 32 of file midi_channel_filter.cc.

bool ARDOUR::MidiChannelFilter::filter	(	uint8_t *	buf,
		uint32_t	len
	)

Filter/map a MIDI message by channel.

May modify the channel in buf if necessary.

Returns

true if this event should be filtered out.

Definition at line 72 of file midi_channel_filter.cc.

uint16_t ARDOUR::MidiChannelFilter::get_channel_mask ( ) const

inline

Definition at line 84 of file midi_channel_filter.h.

ChannelMode ARDOUR::MidiChannelFilter::get_channel_mode ( ) const

inline

Definition at line 80 of file midi_channel_filter.h.

void ARDOUR::MidiChannelFilter::get_mode_and_mask ( ChannelMode *  mode, uint16_t *  mask  ) const

inline

Atomically get both the channel mode and mask.

Definition at line 74 of file midi_channel_filter.h.

bool ARDOUR::MidiChannelFilter::set_channel_mask

(

uint16_t

mask

)

Atomically set the channel mask for the current mode.

Returns

true iff configuration changed.

Definition at line 127 of file midi_channel_filter.cc.

bool ARDOUR::MidiChannelFilter::set_channel_mode	(	ChannelMode	mode,
		uint16_t	mask
	)

Atomically set the channel mode and corresponding mask.

Returns

true iff configuration changed.

Definition at line 110 of file midi_channel_filter.cc.

Member Data Documentation

uint32_t ARDOUR::MidiChannelFilter::_mode_mask

private

16 bits mode, 16 bits mask

Definition at line 92 of file midi_channel_filter.h.

PBD::Signal0<void> ARDOUR::MidiChannelFilter::ChannelMaskChanged

Definition at line 88 of file midi_channel_filter.h.

PBD::Signal0<void> ARDOUR::MidiChannelFilter::ChannelModeChanged

Definition at line 89 of file midi_channel_filter.h.

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The documentation for this class was generated from the following files:

• /usr/local/music/src/ardour/4.0/libs/ardour/ardour/midi_channel_filter.h
• /usr/local/music/src/ardour/4.0/libs/ardour/midi_channel_filter.cc