{ MNCC_STOP_DTMF_REQ, "MNCC_STOP_DTMF_REQ" },
{ MNCC_HOLD_REQ, "MNCC_HOLD_REQ " },
{ MNCC_RETRIEVE_REQ, "MNCC_RETRIEVE_REQ" },
+
{ MNCC_LCHAN_MODIFY, "MNCC_LCHAN_MODIFY" },
+
+ { MNCC_BRIDGE, "MNCC_BRIDGE" },
+ { MNCC_FRAME_RECV, "MNCC_FRAME_RECV" },
+ { MNCC_FRAME_DROP, "MNCC_FRAME_DROP" },
+ { MNCC_RTP_CREATE, "MNCC_RTP_CREATE" },
+ { MNCC_RTP_CONNECT, "MNCC_RTP_CONNECT" },
+ { MNCC_RTP_FREE, "MNCC_RTP_FREE" },
+
{ 0, NULL }
};
const char *mncc_name(int value)
{
int i = 0;
+ static char ukn[32];
while (mncc_names[i].name) {
if (mncc_names[i].msg_type == value)
return mncc_names[i].name;
i++;
}
- return "unknown";
+ SPRINT(ukn, "unknown(0x%x)", value);
+ return ukn;
}
static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data);
*/
Pgsm::Pgsm(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings, interface)
{
+#ifdef WITH_GSMHR
+ signed short homing[160];
+ int i;
+#endif
+
p_g_tones = 0;
if (interface->is_tones == IS_YES)
p_g_tones = 1;
p_g_hr_encoder = NULL;
p_g_amr_decoder = NULL;
p_g_amr_encoder = NULL;
+ p_g_amr_cmr = 0;
+ p_g_amr_cmr_valid = 0;
#ifdef WITH_GSMFR
p_g_fr_decoder = gsm_fr_create();
p_g_fr_encoder = gsm_fr_create();
trigger_work(&p_g_delete);
}
#endif
+#ifdef WITH_GSMHR
+ p_g_hr_decoder = gsm_hr_create();
+ p_g_hr_encoder = gsm_hr_create();
+ if (!p_g_hr_encoder || !p_g_hr_decoder) {
+ PERROR("Failed to create GSM HR codec instance\n");
+ trigger_work(&p_g_delete);
+ }
+ /* Homing */
+ for (i = 0; i < 160; i++)
+ homing[i] = 0x0008;
+ gsm_hr_encode(p_g_hr_encoder, homing, NULL);
+#endif
#ifdef WITH_GSMAMR
p_g_amr_decoder = gsm_amr_create();
p_g_amr_encoder = gsm_amr_create();
if (p_g_fr_decoder)
gsm_fr_destroy(p_g_fr_decoder);
//#endif
+#ifdef WITH_GSMHR
+ if (p_g_hr_encoder)
+ gsm_hr_destroy(p_g_hr_encoder);
+ if (p_g_hr_decoder)
+ gsm_hr_destroy(p_g_hr_decoder);
+#endif
#ifdef WITH_GSMAMR
/* close codec */
if (p_g_amr_encoder)
{
struct gsm_data_frame *frame = (struct gsm_data_frame *)arg;
unsigned char data[160];
- int i;
+ int i, cmr;
if (!p_g_fr_decoder)
return;
}
#endif
break;
+ case GSM_TCHH_FRAME:
+ if (p_g_media_type != MEDIA_TYPE_GSM_HR) {
+ PERROR("HR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_hr_decoder) {
+ PERROR("HR frame, but decoder not created.\n");
+ return;
+ }
+ if ((frame->data[0]>>4) != 0x0)
+ goto bfi;
+#ifdef WITH_GSMHR
+ /* decode */
+ if (gsm_hr_decode(p_g_hr_decoder, frame->data, p_g_samples))
+ goto bfi;
+ for (i = 0; i < 160; i++) {
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+#endif
+ break;
case GSM_TCHF_FRAME_EFR:
if (p_g_media_type != MEDIA_TYPE_GSM_EFR) {
PERROR("EFR frame, but current media type mismatches.\n");
}
#endif
break;
+ case GSM_TCH_FRAME_AMR:
+ if (p_g_media_type != MEDIA_TYPE_AMR) {
+ PERROR("AMR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_amr_decoder) {
+ PERROR("AMR frame, but decoder not created.\n");
+ return;
+ }
+ cmr = (frame->data[1] >> 4);
+ if (cmr <= 7) {
+ p_g_amr_cmr = cmr;
+ p_g_amr_cmr_valid = 1;
+ }
+ if (!(frame->data[2] & 0x04))
+ goto bfi;
+#ifdef WITH_GSMAMR
+ /* decode (skip length byte in front) */
+ gsm_amr_decode(p_g_amr_decoder, frame->data + 1, p_g_samples);
+ for (i = 0; i < 160; i++) {
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+#endif
+ break;
case GSM_BAD_FRAME:
default:
bfi:
int Pgsm::audio_send(unsigned char *data, int len)
{
unsigned char frame[33];
+ int ret;
/* record data */
if (p_record)
frame_send(frame, 33, GSM_TCHF_FRAME);
#endif
break;
+ case MEDIA_TYPE_GSM_HR:
+ if (!p_g_hr_encoder) {
+ PERROR("HR frame, but encoder not created.\n");
+ break;
+ }
+#ifdef WITH_GSMHR
+ /* encode data */
+ gsm_hr_encode(p_g_hr_encoder, p_g_rxdata, frame);
+ frame_send(frame, 15, GSM_TCHH_FRAME);
+#endif
+ break;
case MEDIA_TYPE_GSM_EFR:
if (!p_g_amr_encoder) {
PERROR("EFR frame, but encoder not created.\n");
frame_send(frame, 31, GSM_TCHF_FRAME_EFR);
#endif
break;
+ case MEDIA_TYPE_AMR:
+ if (!p_g_amr_encoder) {
+ PERROR("AMR frame, but encoder not created.\n");
+ break;
+ }
+ if (!p_g_amr_cmr_valid) {
+ PDEBUG(DEBUG_GSM, "no valid CMR yet.\n");
+ break;
+ }
+#ifdef WITH_GSMAMR
+ /* encode data (prefix a length byte) */
+ ret = gsm_amr_encode(p_g_amr_encoder, p_g_rxdata, frame + 1, p_g_amr_cmr);
+ frame[0] = ret;
+ frame_send(frame, ret + 1, GSM_TCH_FRAME_AMR);
+#endif
+ break;
}
}
send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR, if not already */
+ if (!p_g_media_type) {
+ modify_lchan(MEDIA_TYPE_GSM);
+ }
}
/* DISCONNECT INDICATION */
send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR, if not already */
+ if (!p_g_media_type) {
+ modify_lchan(MEDIA_TYPE_GSM);
+ }
}
/* MESSAGE_CONNECT */
int rc;
static char buf[sizeof(struct gsm_mncc)+1024];
struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
+ struct gsm_mncc_hello *hello = (struct gsm_mncc_hello *) buf;
memset(buf, 0, sizeof(buf));
rc = recv(lfd->fd, buf, sizeof(buf), 0);
if (rc < 0)
return rc;
+ /* TODO: size check? */
+ switch (mncc_prim->msg_type) {
+ case MNCC_SOCKET_HELLO:
+ if (hello->version != MNCC_SOCK_VERSION) {
+ PERROR("MNCC version different. BSC version is %u\n", hello->version);
+ mncc_fd_close(lcr_gsm, lfd);
+ return 0;
+ }
+ break;
+ }
+
/* Hand the MNCC message into LCR */
switch (lcr_gsm->type) {
#ifdef WITH_GSM_BS