#define BACKEND_ALSA 0 /**< Use ALSA (Linux only) */
#define BACKEND_COMMAND 1 /**< Execute a command */
#define BACKEND_NETWORK 2 /**< Transmit RTP */
#define BACKEND_ALSA 0 /**< Use ALSA (Linux only) */
#define BACKEND_COMMAND 1 /**< Execute a command */
#define BACKEND_NETWORK 2 /**< Transmit RTP */