X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=audiod.h;h=7e2e2769985f08efcf3227db068e2d7b155ab564;hp=e6bd9b3314a9e6c2c9b9291a0d1a46057a1274bc;hb=3f4c28d4d449efc054e02b9693eaeac9df3c3604;hpb=2ed89c59f0efcd0a2763f47c7d3455663241e623

diff --git a/audiod.h b/audiod.h
index e6bd9b33..7e2e2769 100644
--- a/audiod.h
+++ b/audiod.h
@@ -3,10 +3,82 @@ int num_filters(int audio_format_num);
 int get_audio_format_num(char *name);
 enum {
 	AUDIO_FORMAT_MP3,
-	AUDIO_FORMAT_OGG
+	AUDIO_FORMAT_OGG,
+	AUDIO_FORMAT_AAC,
+	NUM_AUDIO_FORMATS
 };
-#define NUM_AUDIO_FORMATS (AUDIO_FORMAT_OGG + 1)
 extern const char *audio_formats[];
-#define DEFINE_AUDIO_FORMAT_ARRAY const char *audio_formats[] = {"mp3", "ogg", NULL}
+#define DEFINE_AUDIO_FORMAT_ARRAY const char *audio_formats[] = {"mp3", "ogg", "aac", NULL}
 #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 output of the stat command is read from this fd */
+	int fd;
+	/** stat data is stored here */
+	char buf[STRINGSIZE];
+	/** number of bytes loaded in \a buf */
+	unsigned loaded;
+	/** the associated task structure */
+	struct task task;
+	/** do not restart client command until this time */
+	struct timeval restart_barrier;
+	int playing;
+	int offset_seconds;
+	int length_seconds;
+	int sa_time_diff_sign;
+	char *stat_item_values[NUM_STAT_ITEMS];
+	struct timeval server_stream_start;
+	struct timeval sa_time_diff;
+};
+extern struct status_task *stat_task;
+extern struct slot_info slot[MAX_STREAM_SLOTS];
+extern struct gengetopt_args_info conf;
+extern int audiod_status;
+extern const char *status_item_list[NUM_STAT_ITEMS];
+
+void __noreturn clean_exit(int status, const char *msg);
+int handle_connect(int accept_fd);
+void audiod_status_dump(void);
+
+/** iterate over all slots */
+#define FOR_EACH_SLOT(_slot) for (_slot = 0; _slot < MAX_STREAM_SLOTS; _slot++)