Add RAOP implementation, with AirTunes v2 streaming

src/raop.h

@@ -0,0 +1,113 @@
+
+#ifndef __RAOP_H__
+#define __RAOP_H__
+
+#include <netinet/in.h>
+
+#include <event.h>
+#include "evrtsp/evrtsp.h"
+
+
+union sockaddr_all
+{
+  struct sockaddr_in sin;
+  struct sockaddr sa;
+  struct sockaddr_storage ss;
+};
+
+struct raop_session;
+
+struct raop_device
+{
+  uint64_t id;
+  char *name;
+
+  char *address;
+  short port;
+
+  char selected;
+  char advertised;
+
+  char has_password;
+  const char *password;
+
+  struct raop_session *session;
+
+  struct raop_device *next;
+};
+
+/* RAOP session state */
+
+/* Session is starting up */
+#define RAOP_F_STARTUP    (1 << 15)
+
+/* Streaming is up (connection established) */
+#define RAOP_F_CONNECTED  (1 << 16)
+
+enum raop_session_state
+  {
+    RAOP_STOPPED   = 0,
+
+    /* Session startup */
+    RAOP_OPTIONS   = RAOP_F_STARTUP | 0x01,
+    RAOP_ANNOUNCE  = RAOP_F_STARTUP | 0x02,
+    RAOP_SETUP     = RAOP_F_STARTUP | 0x03,
+    RAOP_RECORD    = RAOP_F_STARTUP | 0x04,
+
+    /* Session established
+     * - streaming ready (RECORD sent and acked, connection established)
+     * - commands (SET_PARAMETER) are possible
+     */
+    RAOP_CONNECTED = RAOP_F_CONNECTED,
+
+    /* Audio data is being sent */
+    RAOP_STREAMING = RAOP_F_CONNECTED | 0x01,
+
+    /* Session is failed, couldn't startup or error occurred */
+    RAOP_FAILED    = -1,
+
+    /* Password issue: unknown password or bad password */
+    RAOP_PASSWORD  = -2,
+  };
+
+typedef void (*raop_status_cb)(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status);
+
+
+int
+raop_device_probe(struct raop_device *rd, raop_status_cb cb);
+
+int
+raop_device_start(struct raop_device *rd, raop_status_cb cb, uint64_t rtptime);
+
+void
+raop_device_stop(struct raop_session *rs);
+
+void
+raop_playback_start(uint64_t next_pkt, struct timespec *ts);
+
+void
+raop_playback_stop(void);
+
+
+int
+raop_set_volume(int volume, raop_status_cb cb);
+
+int
+raop_flush(raop_status_cb cb, uint64_t rtptime);
+
+
+void
+raop_set_status_cb(struct raop_session *rs, raop_status_cb cb);
+
+
+void
+raop_v2_write(uint8_t *buf, uint64_t rtptime);
+
+
+int
+raop_init(void);
+
+void
+raop_deinit(void);
+
+#endif /* !__RAOP_H__ */