1 files changed, 75 insertions, 0 deletions
diff --git a/src/telephone/telephone.h b/src/telephone/telephone.h
new file mode 100644
index 0000000..4c7dfa0
--- /dev/null
+++ b/src/telephone/telephone.h
@@ -0,0 +1,75 @@
+
+#include "../libtimer/timer.h"
+#include "../libosmocc/endpoint.h"
+#include "../libsample/sample.h"
+#include "../libsamplerate/samplerate.h"
+#include "../libjitter/jitter.h"
+
+enum call_state {
+	CALL_STATE_IDLE = 0,    /* no call */
+	CALL_STATE_IN_SETUP,    /* incoming connection */
+	CALL_STATE_OUT_SETUP,   /* outgoing connection */
+	CALL_STATE_IN_OVERLAP,  /* more informatiopn needed */
+	CALL_STATE_OUT_OVERLAP, /* more informatiopn needed */
+	CALL_STATE_IN_PROCEEDING,/* call is proceeding */
+	CALL_STATE_OUT_PROCEEDING,/* call is proceeding */
+	CALL_STATE_IN_ALERTING, /* call is ringing */
+	CALL_STATE_OUT_ALERTING,/* call is ringing */
+	CALL_STATE_CONNECT,     /* call is connected and transmission is enabled */
+	CALL_STATE_IN_DISCONNECT,/* incoming disconnected */
+	CALL_STATE_OUT_DISCONNECT,/* outgoing disconnected */
+};
+
+struct telephone;
+
+struct call_list;
+
+typedef struct telephone {
+	osmo_cc_endpoint_t cc_ep;
+	struct call_list *call_list;
+	const char *name;
+
+	/* settings */
+	int serving_location; /* who we serve when sending causes towards interface */
+	int early_audio;
+
+	/* sound */
+	int loopback;
+	int samplerate;		/* sample rate of headphone interface */
+	int latspl;
+	void *sound;		/* headphone interface */
+
+} telephone_t;
+
+typedef struct call_list {
+	struct call_list *next;
+        telephone_t *telephone_ep;
+
+	/* alsa states */
+
+	/* osmo-cc states */
+	uint32_t cc_callref;
+	const char *sdp;
+	osmo_cc_session_t *cc_session;
+	osmo_cc_session_codec_t *codec;
+	int codec_negotiated;
+
+	/* call states */
+	enum call_state state;
+
+	/* audio states */
+	jitter_t dejitter;
+	samplerate_t srstate;
+	sample_t tx_buffer[160]; /* transmit audio buffer */
+        int tx_buffer_pos; /* current position in transmit audio buffer */
+} call_t;
+
+void telephone_destroy(telephone_t *telephone_ep);
+telephone_t *telephone_create(void);
+int telephone_init(telephone_t *telephone_ep, const char *name, const char *callerid, uint8_t serving_location, int early_audio, const char *audiodev, int samplerate, int __attribute__((unused)) latspl);
+void cc_message(osmo_cc_endpoint_t *ep, uint32_t callref, osmo_cc_msg_t *msg);
+int ui_init(const char *remote_id, int autoalert, int autoanswer);
+int ui_work(telephone_t *telephone_ep, int c);
+void alsa_work(telephone_t *telephone_ep);
+void rtp_work(telephone_t *telephone_ep);
+