BtSourceMachine

BtSourceMachine — class for signal processing machines with outputs only

Synopsis

#include <libbtcore/core.h>

struct              BtSourceMachine;
enum                BtSourceMachinePatternIndex;
BtSourceMachine *   bt_source_machine_new               (const BtSong * const song,
                                                         const gchar * const id,
                                                         const gchar * const plugin_name,
                                                         const glong voices,
                                                         GError **err);

Object Hierarchy

  GObject
   +----GstObject
         +----GstElement
               +----GstBin
                     +----BtMachine
                           +----BtSourceMachine

Implemented Interfaces

BtSourceMachine implements GstChildProxy.

Description

Sources are machines that generate audio.

Details

struct BtSourceMachine

struct BtSourceMachine;

Sub-class of a BtMachine that implements a signal generator (a machine with outputs only).


enum BtSourceMachinePatternIndex

typedef enum {
  BT_SOURCE_MACHINE_PATTERN_INDEX_BREAK=0,
  BT_SOURCE_MACHINE_PATTERN_INDEX_MUTE,
  BT_SOURCE_MACHINE_PATTERN_INDEX_SOLO,
  BT_SOURCE_MACHINE_PATTERN_INDEX_OFFSET
} BtSourceMachinePatternIndex;

Use this with bt_machine_get_pattern_by_index() to get the command patterns.

BT_SOURCE_MACHINE_PATTERN_INDEX_BREAK

stop the pattern

BT_SOURCE_MACHINE_PATTERN_INDEX_MUTE

mute the machine

BT_SOURCE_MACHINE_PATTERN_INDEX_SOLO

play only this machine

BT_SOURCE_MACHINE_PATTERN_INDEX_OFFSET

offset for real pattern ids

bt_source_machine_new ()

BtSourceMachine *   bt_source_machine_new               (const BtSong * const song,
                                                         const gchar * const id,
                                                         const gchar * const plugin_name,
                                                         const glong voices,
                                                         GError **err);

Create a new instance The machine is automaticly added to the setup from the given song object. You don't need to add the machine with bt_setup_add_machine(setup,BT_MACHINE(machine));.

song :

the song the new instance belongs to

id :

the id, we can use to lookup the machine

plugin_name :

the name of the gst-plugin the machine is using

voices :

the number of voices the machine should initially have

err :

inform about failed instance creation

Returns :

the new instance or NULL in case of an error