1 files changed, 84 insertions, 0 deletions
diff --git a/src/router/call.h b/src/router/call.h
new file mode 100644
index 0000000..12b62c5
--- /dev/null
+++ b/src/router/call.h
@@ -0,0 +1,84 @@
+
+#include "../libtimer/timer.h"
+#include "../libosmocc/endpoint.h"
+#include "../libosmocc/helper.h"
+#include "../libsample/sample.h"
+#include "../libjitter/jitter.h"
+#include "../libwave/wave.h"
+#include "../libdtmf/dtmf_decode.h"
+
+
+enum call_state {
+	CALL_STATE_IDLE = 0,
+	CALL_STATE_SETUP,
+	CALL_STATE_OVERLAP,
+	CALL_STATE_PROCEEDING,
+	CALL_STATE_ALERTING,
+	CALL_STATE_CONNECT,
+	CALL_STATE_DISC_FROM_ORIG,
+	CALL_STATE_DISC_FROM_TERM,
+};
+
+#include "routing.h"
+
+/* relation to upper layer */
+typedef struct call_relation {
+	struct call_relation	*next;
+	int			num;		/* number counter for debugging */
+	struct call		*call;		/* points to the call */
+	uint32_t		cc_callref;	/* callref for each releation */
+	const char		*sdp;		/* received SDP? */
+	int			tones_recv;	/* are inband tones available? */
+	jitter_t		orig_dejitter;	/* jitter buffer for call recording (originating source) */
+	jitter_t		term_dejitter;	/* jitter buffer for call recording (terminating source) */
+
+	char			interface[256];	/* interface */
+	char			id[256];	/* caller ID / dialing*/
+	enum call_state		state;		/* state for status display */
+
+	int			rtp_proxy;
+	osmo_cc_session_t	*cc_session;
+	int			codec_negotiated;
+	osmo_cc_session_codec_t	*codec;
+
+	wave_play_t		play;		/* play a wave file */
+	int			play_loop;	/* set to play loop */
+	char			play_filename[256];/* stored for reopen on loop */
+	double			play_deviation;	/* stored for reopen on loop */
+	wave_rec_t		rec;		/* record a wave file */
+	dtmf_dec_t		dtmf_dec;	/* dtmf decoder */
+	int			dtmf_dec_enable;/* feed decoder with data */
+} call_relation_t;
+
+/* call instance */
+typedef struct call {
+	struct call		*next;
+	int			num;		/* number counter for debugging */
+
+	/* call */
+	enum call_state		state;		/* current state of call */
+	osmo_cc_msg_t		*setup_msg;	/* stored setup message for later IE forwarding */
+	char			dialing_number[256]; /* accumulated dial string (setup + info) */
+	char			dialing_keypad[256]; /* accumulated keypad string (setup + info) */
+	int			forking;	/* set, if call is forked (started with 2 or more calls) */
+	uint8_t			collect_cause;	/* cause from forking calls */
+	call_relation_t		*relation_list;	/* list of all upper layer relations */
+	/* NOTE: the first relation is always the originator */
+	int			tones_sent;	/* did we announce inband tones? */
+	int			sdp_forwarded;	/* if set, we cannot do RTP-Proxy anymore */
+
+	/* routing */
+	routing_t		routing;
+
+	/* audio */
+	double			tx_gain;	/* gain of what is received from originator */
+	double			rx_gain;	/* gain of what is transmitted to the originator */
+} call_t;
+
+extern call_t *call_list;
+
+int call_init(osmo_cc_endpoint_t *ep, const char *_routing_script, const char *_routing_shell);
+void call_exit(void);
+int call_handle(void);
+void cc_message(osmo_cc_endpoint_t *ep, uint32_t callref, osmo_cc_msg_t *msg);
+