typedef struct mixState {
	char *input;
	char *output;
	char *name;
	float dBGain;
} mixState;

typedef enum bool {
	false,
	true
} bool;

void parseArgs(int argc, char *argv[]);
void setWorkdir();
void syncState();
void readState();
void writeState();
int openSyncFile(FILE **file, char *fileName, char *fileMode, bool errOK);

void cleanExit(int r);
void errMsg(int r, int *errno, char *head, char *detail);