Create a multiplexer (type 1) element
#include <audio_driver.h> ado_mixer_delement_t *ado_mixer_element_mux1 ( ado_mixer_t *mixer, char *name, uint32_t attrib, uint32_t number_of_voices, ado_mixer_delement_control_mux1_t *control, void *instance_data, void (*instance_free) (void *data) );
The prototype is:
int32_t control( MIXER_CONTEXT_T *context, ado_mixer_delement_t *element, uint8_t set, ado_mixer_delement_t **inelements, void *instance_data );
If you need to access this instance data, you have to call ado_mixer_get_element_instance_data() because ado_mixer_delement_t is an opaque data type.
The ado_mixer_element_mux1() convenience function automates the creation of a multiplexer (type 1) element. A multiplexer of type 1 selects exactly one of many inputs to be routed to its output. Selecting a new input automatically deselects the previous one, so that only one input is selected.
A pointer to the newly allocated multiplexer (type 1) element.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | No |
ado_mixer_create(), ado_mixer_element_mux2(), ado_mixer_get_element_instance_data()