BtPatternControlSource

BtPatternControlSource — Custom controlsource based on repeated event blocks (BtPatterns).

Functions

Properties

gpointer default-value Write
BtMachine * machine Read / Write / Construct Only
BtParameterGroup * parameter-group Read / Write / Construct Only
BtSequence * sequence Read / Write / Construct Only
BtSongInfo * song-info Read / Write / Construct Only

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstControlBinding
                ╰── BtPatternControlSource

Includes

#include <libbtcore/core.h>

Description

The control source will update machine parameters over time, based on the events from the sequences and the patterns. One control-source will handle one single parameter. It implements the logic of computing the parameter value for a given time, taking multiple tracks and overlapping patterns into account.

At the begin of the timeline (ts==0) all parameters that have no value in the sequence will be initialized from “default-value”. For trigger parameter this usualy is the no-value. For other parameters it is the last value one has set in the ui or via interaction controller.

Functions

bt_pattern_control_source_new ()

BtPatternControlSource *
bt_pattern_control_source_new (GstObject *object,
                               const gchar *property_name,
                               BtSequence *sequence,
                               const BtSongInfo *song_info,
                               const BtMachine *machine,
                               BtParameterGroup *param_group);

Create a pattern control source for the given machine and param_group . Use gst_control_source_bind() to attach it to one specific parameter of the param_group .

Parameters

object

the object of the property

 

property_name

the property-name to attach the control source

 

sequence

the songs sequence

 

song_info

the song info

 

machine

the machine

 

param_group

the parameter group

 

Returns

the new pattern control source

Types and Values

struct BtPatternControlSource

struct BtPatternControlSource;

A pattern based control source

Property Details

The “default-value” property

  “default-value”            gpointer

pointer to value to use if no other found.

Flags: Write


The “machine” property

  “machine”                  BtMachine *

the machine object, the controlsource belongs to.

Flags: Read / Write / Construct Only


The “parameter-group” property

  “parameter-group”          BtParameterGroup *

the parameter group.

Flags: Read / Write / Construct Only


The “sequence” property

  “sequence”                 BtSequence *

the sequence object.

Flags: Read / Write / Construct Only


The “song-info” property

  “song-info”                BtSongInfo *

the song-info object.

Flags: Read / Write / Construct Only