AuMakeChangeStateAction(3nas)

Usage

#include <audio/audiolib.h>

AuMakeChangeStateAction(action, trigger_state, trigger_prev_state, trigger_reason, flow, element_num, new_state)

AuElementAction action; /* RETURN */

unsigned char trigger_state;

unsigned char trigger_prev_state;

unsigned char trigger_reason;

AuFlowID flow;

unsigned char element_num;

unsigned char new_state;

Arguments

action: Returns the initialized action.

trigger_state: Specifies the state that triggers the action. This must be one of these constants: AuStateStop, AuStateStart, AuStatePause, or AuStateAny.

trigger_prev_state: Specifies the previous state for the trigger. This must be one of these constants: AuStateStop, AuStateStart, AuStatePause, or AuStateAny.

trigger_reason: Specifies the reason for the action. This must be one of these constants: AuReasonUser, AuReasonUnderrun, AuReasonOverrun, AuReasonEOF, AuReasonWatermark, AuReasonHardware, or AuReasonAny.

flow: Specifies the ID of the flow to affect.

element_num: Specifies the index of the element to affect.

new_state: Specifies the new state for the flow. This must be one of thses constants: AuStateStop, AuStateStart, or AuStatePause.

Overview

AuMakeChangeStateAction sets the action field of action to AuElementActionChangeState and initializes the other fields with the remaining arguments.

AuMakeChangeStateAction is implemented as a macro.

Releases

14 releases since Debian 2.1 (Slink); the text changed 6 times.