-/** maximal number of simultaneous instances */
-#define MAX_STREAM_SLOTS 5
-
-/**
- * the possible modes of operation
- *
- * - off: disconnect from para_server
- * - on: receive status information from para_server and play the audio stream
- * - sb: only receive status information but not the audio stream
-*/
-enum {AUDIOD_OFF, AUDIOD_ON, AUDIOD_STANDBY};
-
-/**
- * describes one instance of a receiver-filter-writer chain
- *
- * \sa receier_node, receiver, filter, filter_node, filter_chain, writer,
- * writer_node, writer_node_group.
- */
-struct slot_info {
- /** number of the audio format in this slot */
- int format;
- /** writer start time */
- struct timeval wstime;
- /** the receiver info associated with this slot */
- struct receiver_node *receiver_node;
- /** the active filter chain */
- struct filter_chain *fc;
- /** the active writer node group */
- struct writer_node_group *wng;
-};
-
-/**
- * the main task of audiod
- *
- * \sa struct task, struct sched
- */
-struct audiod_task {
- struct timeval *now;
- struct task task;
-};
-
-/**
- * the task for audiod's child (para_client stat)
- *
- * \sa struct task, struct sched
- */
-struct status_task {
- /** the associated task structure of audiod */
- struct task task;
- struct private_client_data *pcd;
- /** the array of status items sent by para_server */
- char *stat_item_values[NUM_STAT_ITEMS];
- /** do not restart client command until this time */
- struct timeval restart_barrier;
- /** last time we received status data from para_server */
- struct timeval last_status_read;
- /** the offset value announced by para_server */
- int offset_seconds;
- /** the length of the current audio file as announced by para_server */
- int length_seconds;
- /** the start of the current stream from the view of para_server */
- struct timeval server_stream_start;
- /** the averaged time deviation between para_server and para_audiod */
- struct timeval sa_time_diff;
- /** whether client time is ahead of server time */
- int sa_time_diff_sign;
- /** non-zero if \a af_status is "playing" */
- int playing;
-};
-
-extern struct status_task *stat_task;
-extern struct slot_info slot[MAX_STREAM_SLOTS];
-extern struct audiod_args_info conf;