static switch_status_t tech_init(private_t *tech_pvt, switch_core_session_t *session)
{
const char *iananame = "L16";
int rate = 8000;
int interval = 20;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_t *channel = switch_core_session_get_channel(session);
const switch_codec_implementation_t *read_impl;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s setup codec %s/%d/%d\n", switch_channel_get_name(channel), iananame, rate,
interval);
status = switch_core_codec_init(&tech_pvt->read_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS || !tech_pvt->read_codec.implementation || !switch_core_codec_ready(&tech_pvt->read_codec)) {
goto end;
}
status = switch_core_codec_init(&tech_pvt->write_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS) {
switch_core_codec_destroy(&tech_pvt->read_codec);
goto end;
}
tech_pvt->read_frame.data = tech_pvt->databuf;
tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
tech_pvt->read_frame.flags = SFF_NONE;
switch_core_session_set_read_codec(session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(session, &tech_pvt->write_codec);
read_impl = tech_pvt->read_codec.implementation;
switch_core_timer_init(&tech_pvt->timer, "soft",
read_impl->microseconds_per_packet / 1000, read_impl->samples_per_packet, switch_core_session_get_pool(session));
switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_core_session_set_private(session, tech_pvt);
tech_pvt->session = session;
tech_pvt->channel = switch_core_session_get_channel(session);
end:
return status;
}
static switch_status_t channel_receive_event(switch_core_session_t *session, switch_event_t *event)
{
const char *command = switch_event_get_header(event, "command");
switch_channel_t *channel = switch_core_session_get_channel(session);
crtp_private_t *tech_pvt = switch_core_session_get_private(session);
char *codec = switch_event_get_header_nil(event, kCODEC);
char *szptime = switch_event_get_header_nil(event, kPTIME);
char *szrate = switch_event_get_header_nil(event, kRATE);
char *szpt = switch_event_get_header_nil(event, kPT);
int ptime = !zstr(szptime) ? atoi(szptime) : 0,
rate = !zstr(szrate) ? atoi(szrate) : 8000,
pt = !zstr(szpt) ? atoi(szpt) : 0;
if (!zstr(command) && !strcasecmp(command, "media_modify")) {
/* Compare parameters */
if (compare_var(event, channel, kREMOTEADDR) ||
compare_var(event, channel, kREMOTEPORT)) {
char *remote_addr = switch_event_get_header(event, kREMOTEADDR);
char *szremote_port = switch_event_get_header(event, kREMOTEPORT);
switch_port_t remote_port = !zstr(szremote_port) ? atoi(szremote_port) : 0;
const char *err;
switch_channel_set_variable(channel, kREMOTEADDR, remote_addr);
switch_channel_set_variable(channel, kREMOTEPORT, szremote_port);
if (switch_rtp_set_remote_address(tech_pvt->rtp_session, remote_addr, remote_port, 0, SWITCH_TRUE, &err) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Error setting RTP remote address: %s\n", err);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Set RTP remote: %s:%d\n", remote_addr, (int)remote_port);
tech_pvt->mode = RTP_SENDRECV;
}
}
if (compare_var(event, channel, kCODEC) ||
compare_var(event, channel, kPTIME) ||
compare_var(event, channel, kPT) ||
compare_var(event, channel, kRATE)) {
/* Reset codec */
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "Switching codec updating \n");
if (switch_core_codec_init(&tech_pvt->read_codec,
codec,
NULL,
rate,
ptime,
1,
/*SWITCH_CODEC_FLAG_ENCODE |*/ SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
goto fail;
} else {
if (switch_core_codec_init(&tech_pvt->write_codec,
codec,
NULL,
rate,
ptime,
1,
SWITCH_CODEC_FLAG_ENCODE /*| SWITCH_CODEC_FLAG_DECODE*/,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
goto fail;
}
}
if (switch_core_session_set_read_codec(session, &tech_pvt->read_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set read codec?\n");
goto fail;
}
if (switch_core_session_set_write_codec(session, &tech_pvt->write_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set write codec?\n");
goto fail;
}
switch_rtp_set_default_payload(tech_pvt->rtp_session, pt);
//switch_rtp_set_recv_pt(tech_pvt->rtp_session, pt);
}
if (compare_var(event, channel, kRFC2833PT)) {
const char *szpt = switch_channel_get_variable(channel, kRFC2833PT);
int pt = !zstr(szpt) ? atoi(szpt) : 0;
switch_channel_set_variable(channel, kRFC2833PT, szpt);
switch_rtp_set_telephony_event(tech_pvt->rtp_session, pt);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Received unknown command [%s] in event.\n", !command ? "null" : command);
}
return SWITCH_STATUS_SUCCESS;
fail:
if (tech_pvt) {
if (tech_pvt->read_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (tech_pvt->write_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
}
if (session) {
switch_core_session_destroy(&session);
}
return SWITCH_STATUS_FALSE;
}
static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_event_t *var_event,
switch_caller_profile_t *outbound_profile,
switch_core_session_t **new_session,
switch_memory_pool_t **pool,
switch_originate_flag_t flags, switch_call_cause_t *cancel_cause)
{
switch_channel_t *channel;
char name[128];
crtp_private_t *tech_pvt = NULL;
switch_caller_profile_t *caller_profile;
switch_rtp_flag_t rtp_flags[SWITCH_RTP_FLAG_INVALID] = {0};
const char *err;
const char *local_addr = switch_event_get_header_nil(var_event, kLOCALADDR),
*szlocal_port = switch_event_get_header_nil(var_event, kLOCALPORT),
*remote_addr = switch_event_get_header_nil(var_event, kREMOTEADDR),
*szremote_port = switch_event_get_header_nil(var_event, kREMOTEPORT),
*codec = switch_event_get_header_nil(var_event, kCODEC),
*szptime = switch_event_get_header_nil(var_event, kPTIME),
//*mode = switch_event_get_header_nil(var_event, kMODE),
//*szrfc2833_pt = switch_event_get_header_nil(var_event, kRFC2833PT),
*szrate = switch_event_get_header_nil(var_event, kRATE),
*szpt = switch_event_get_header_nil(var_event, kPT);
switch_port_t local_port = !zstr(szlocal_port) ? atoi(szlocal_port) : 0,
remote_port = !zstr(szremote_port) ? atoi(szremote_port) : 0;
int ptime = !zstr(szptime) ? atoi(szptime) : 0,
//rfc2833_pt = !zstr(szrfc2833_pt) ? atoi(szrfc2833_pt) : 0,
rate = !zstr(szrate) ? atoi(szrate) : 8000,
pt = !zstr(szpt) ? atoi(szpt) : 0;
if (
((zstr(remote_addr) || remote_port == 0) && (zstr(local_addr) || local_port == 0)) ||
zstr(codec) ||
zstr(szpt)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Missing required arguments\n");
goto fail;
}
if (!(*new_session = switch_core_session_request(crtp.endpoint_interface, SWITCH_CALL_DIRECTION_OUTBOUND, 0, pool))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't request session.\n");
goto fail;
}
channel = switch_core_session_get_channel(*new_session);
tech_pvt = switch_core_session_alloc(*new_session, sizeof *tech_pvt);
tech_pvt->session = *new_session;
tech_pvt->channel = channel;
tech_pvt->local_address = switch_core_session_strdup(*new_session, local_addr);
tech_pvt->local_port = local_port;
tech_pvt->remote_address = switch_core_session_strdup(*new_session, remote_addr);
tech_pvt->remote_port = remote_port;
tech_pvt->ptime = ptime;
tech_pvt->agreed_pt = pt;
tech_pvt->dtmf_type = DTMF_2833; /* XXX */
if (zstr(local_addr) || local_port == 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "The local address and port must be set\n");
goto fail;
} else if (zstr(remote_addr) || remote_port == 0) {
tech_pvt->mode = RTP_RECVONLY;
} else {
tech_pvt->mode = RTP_SENDRECV;
}
switch_core_session_set_private(*new_session, tech_pvt);
caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
switch_channel_set_caller_profile(channel, caller_profile);
snprintf(name, sizeof(name), "rtp/%s", outbound_profile->destination_number);
switch_channel_set_name(channel, name);
switch_channel_set_state(channel, CS_INIT);
if (switch_core_codec_init(&tech_pvt->read_codec,
codec,
NULL,
rate,
ptime,
1,
/*SWITCH_CODEC_FLAG_ENCODE |*/ SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
goto fail;
} else {
if (switch_core_codec_init(&tech_pvt->write_codec,
codec,
NULL,
rate,
ptime,
1,
SWITCH_CODEC_FLAG_ENCODE /*| SWITCH_CODEC_FLAG_DECODE*/,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
goto fail;
}
}
if (switch_core_session_set_read_codec(*new_session, &tech_pvt->read_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set read codec?\n");
goto fail;
}
if (switch_core_session_set_write_codec(*new_session, &tech_pvt->write_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set write codec?\n");
goto fail;
}
if (!(tech_pvt->rtp_session = switch_rtp_new(local_addr, local_port, remote_addr, remote_port, tech_pvt->agreed_pt,
tech_pvt->read_codec.implementation->samples_per_packet, ptime * 1000,
rtp_flags, "soft", &err, switch_core_session_get_pool(*new_session)))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't setup RTP session: [%s]\n", err);
goto fail;
}
if (switch_core_session_thread_launch(*new_session) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't start session thread.\n");
goto fail;
}
switch_channel_mark_answered(channel);
return SWITCH_CAUSE_SUCCESS;
fail:
if (tech_pvt) {
if (tech_pvt->read_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (tech_pvt->write_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
}
if (*new_session) {
switch_core_session_destroy(new_session);
}
return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
}
static switch_status_t tech_init(private_t *tech_pvt, switch_core_session_t *session, switch_codec_t *codec)
{
const char *iananame = "L16";
int rate = 8000;
int interval = 20;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_t *channel = switch_core_session_get_channel(session);
const switch_codec_implementation_t *read_impl;
if (codec) {
iananame = codec->implementation->iananame;
rate = codec->implementation->samples_per_second;
interval = codec->implementation->microseconds_per_packet / 1000;
}
if (switch_core_codec_ready(&tech_pvt->read_codec)) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (switch_core_codec_ready(&tech_pvt->write_codec)) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s setup codec %s/%d/%d\n", switch_channel_get_name(channel), iananame, rate,
interval);
status = switch_core_codec_init(&tech_pvt->read_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS || !tech_pvt->read_codec.implementation || !switch_core_codec_ready(&tech_pvt->read_codec)) {
goto end;
}
status = switch_core_codec_init(&tech_pvt->write_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS) {
switch_core_codec_destroy(&tech_pvt->read_codec);
goto end;
}
tech_pvt->read_frame.data = tech_pvt->databuf;
tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
tech_pvt->cng_frame.data = tech_pvt->cng_databuf;
tech_pvt->cng_frame.buflen = sizeof(tech_pvt->cng_databuf);
//switch_set_flag((&tech_pvt->cng_frame), SFF_CNG);
tech_pvt->cng_frame.datalen = 2;
tech_pvt->bowout_frame_count = (tech_pvt->read_codec.implementation->actual_samples_per_second /
tech_pvt->read_codec.implementation->samples_per_packet) * 3;
switch_core_session_set_read_codec(session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(session, &tech_pvt->write_codec);
if (tech_pvt->flag_mutex) {
switch_core_timer_destroy(&tech_pvt->timer);
}
read_impl = tech_pvt->read_codec.implementation;
switch_core_timer_init(&tech_pvt->timer, "soft",
read_impl->microseconds_per_packet / 1000, read_impl->samples_per_packet * 4, switch_core_session_get_pool(session));
if (!tech_pvt->flag_mutex) {
switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_core_session_set_private(session, tech_pvt);
switch_queue_create(&tech_pvt->frame_queue, FRAME_QUEUE_LEN, switch_core_session_get_pool(session));
tech_pvt->session = session;
tech_pvt->channel = switch_core_session_get_channel(session);
}
end:
return status;
}
bool WSClientParser::InitChannel(WSChannel* wsChannel) {
switch_core_session_t *session = wsChannel->session;
switch_channel_t* channel = switch_core_session_get_channel(wsChannel->session);
// 初始化语音
wsChannel->read_frame.data = wsChannel->databuf;
wsChannel->read_frame.buflen = sizeof(wsChannel->databuf);
/* Initialize read & write codecs */
if (switch_core_codec_init(
&wsChannel->read_codec,
/* name */ "SPEEX",
/* modname */ NULL,
/* fmtp */ NULL,
/* rate */ 16000,
/* ms */ 20,
/* channels */ 1,
/* flags */ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
/* codec settings */ NULL, switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(
SWITCH_CHANNEL_SESSION_LOG(session),
SWITCH_LOG_ERROR,
"WSClientParser::InitChannel( "
"[Fail, Can't initialize read codec], "
"this : %p, "
"wsChannel : %p "
")\n",
this,
wsChannel
);
return false;
}
if (switch_core_codec_init(
&wsChannel->write_codec,
/* name */ "SPEEX",
/* modname */ NULL,
/* fmtp */ NULL,
/* rate */ 16000,
/* ms */ 20,
/* channels */ 1,
/* flags */ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
/* codec settings */ NULL, switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(
SWITCH_CHANNEL_SESSION_LOG(session),
SWITCH_LOG_ERROR, ""
"WSClientParser::InitChannel( "
"[Fail, Can't initialize write codec], "
"this : %p, "
"wsChannel : %p "
")\n",
this,
wsChannel
);
return false;
}
switch_core_session_set_read_codec(session, &wsChannel->read_codec);
switch_core_session_set_write_codec(session, &wsChannel->write_codec);
//static inline uint8_t rtmp_audio_codec(int channels, int bits, int rate, rtmp_audio_format_t format) {
wsChannel->audio_codec = 0xB2; //rtmp_audio_codec(1, 16, 0 /* speex is always 8000 */, RTMP_AUDIO_SPEEX);
// 初始化视频
switch_codec_settings_t codec_settings = {{ 0 }};
wsChannel->video_read_frame.data = wsChannel->video_databuf;
wsChannel->video_read_frame.buflen = sizeof(wsChannel->video_databuf);
/* Initialize video read & write codecs */
if (switch_core_codec_init(
&wsChannel->video_read_codec,
/* name */ "H264",
/* modname */ NULL,
/* fmtp */ NULL,
/* rate */ 90000,
/* ms */ 0,
/* channels */ 1,
/* flags */ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
/* codec settings */ NULL,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS
) {
switch_log_printf(
SWITCH_CHANNEL_SESSION_LOG(session),
SWITCH_LOG_ERROR,
"WSClientParser::InitChannel( "
"[Fail, Can't initialize video read codec], "
"this : %p, "
"wsChannel : %p "
") \n",
this,
wsChannel
);
return false;
}
codec_settings.video.bandwidth = switch_parse_bandwidth_string("1mb");
if (switch_core_codec_init(
&wsChannel->video_write_codec,
/* name */ "H264",
/* modname */ NULL,
/* fmtp */ NULL,
/* rate */ 90000,
/* ms */ 0,
/* channels */ 1,
/* flags */ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
/* codec settings */ &codec_settings,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS
) {
switch_log_printf(
SWITCH_CHANNEL_SESSION_LOG(session),
SWITCH_LOG_ERROR,
"WSClientParser::InitChannel( "
"[Fail, Can't initialize write codec], "
"this : %p, "
"wsChannel : %p "
") \n",
this,
wsChannel
);
return false;
}
switch_core_session_set_video_read_codec(session, &wsChannel->video_read_codec);
switch_core_session_set_video_write_codec(session, &wsChannel->video_write_codec);
switch_channel_set_flag(channel, CF_VIDEO);
wsChannel->mparams.external_video_source = SWITCH_TRUE;
switch_media_handle_create(&wsChannel->media_handle, session, &wsChannel->mparams);
wsChannel->video_read_frame.packet = wsChannel->video_databuf;
wsChannel->video_read_frame.data = wsChannel->video_databuf + 12;
wsChannel->video_read_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE - 12;
switch_mutex_init(&wsChannel->video_readbuf_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_buffer_create_dynamic(&wsChannel->video_readbuf, 1024, 1024, 2048000);
wsChannel->video_codec = 0xB2;
return true;
}
static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_event_t *var_event,
switch_caller_profile_t *outbound_profile,
switch_core_session_t **new_session,
switch_memory_pool_t **pool,
switch_originate_flag_t flags, switch_call_cause_t *cancel_cause)
{
const char *szchanid = switch_event_get_header(var_event, kCHAN_ID),
*span_name = switch_event_get_header(var_event, kSPAN_NAME),
*szprebuffer_len = switch_event_get_header(var_event, kPREBUFFER_LEN);
int chan_id;
int span_id;
switch_caller_profile_t *caller_profile;
ftdm_span_t *span;
ftdm_channel_t *chan;
switch_channel_t *channel;
char name[128];
const char *dname;
ftdm_codec_t codec;
uint32_t interval;
ctdm_private_t *tech_pvt = NULL;
if (zstr(szchanid) || zstr(span_name)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Both ["kSPAN_ID"] and ["kCHAN_ID"] have to be set.\n");
goto fail;
}
chan_id = atoi(szchanid);
if (ftdm_span_find_by_name(span_name, &span) == FTDM_SUCCESS) {
span_id = ftdm_span_get_id(span);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot find span [%s]\n", span_name);
goto fail;
}
if (!(*new_session = switch_core_session_request(ctdm.endpoint_interface, SWITCH_CALL_DIRECTION_OUTBOUND, 0, pool))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't request session.\n");
goto fail;
}
channel = switch_core_session_get_channel(*new_session);
if (ftdm_channel_open_ph(span_id, chan_id, &chan) != FTDM_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't open span or channel.\n");
goto fail;
}
span = ftdm_channel_get_span(chan);
tech_pvt = switch_core_session_alloc(*new_session, sizeof *tech_pvt);
tech_pvt->chan_id = chan_id;
tech_pvt->span_id = span_id;
tech_pvt->ftdm_channel = chan;
tech_pvt->session = *new_session;
tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
tech_pvt->read_frame.data = tech_pvt->databuf;
tech_pvt->prebuffer_len = zstr(szprebuffer_len) ? 0 : atoi(szprebuffer_len);
switch_core_session_set_private(*new_session, tech_pvt);
caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
switch_channel_set_caller_profile(channel, caller_profile);
snprintf(name, sizeof(name), "tdm/%d:%d", span_id, chan_id);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Connect outbound channel %s\n", name);
switch_channel_set_name(channel, name);
switch_channel_set_state(channel, CS_INIT);
if (FTDM_SUCCESS != ftdm_channel_command(chan, FTDM_COMMAND_GET_CODEC, &codec)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to retrieve channel codec.\n");
return SWITCH_STATUS_GENERR;
}
if (FTDM_SUCCESS != ftdm_channel_command(chan, FTDM_COMMAND_GET_INTERVAL, &interval)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to retrieve channel interval.\n");
return SWITCH_STATUS_GENERR;
}
if (FTDM_SUCCESS != ftdm_channel_command(chan, FTDM_COMMAND_SET_PRE_BUFFER_SIZE, &tech_pvt->prebuffer_len)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set channel pre buffer size.\n");
return SWITCH_STATUS_GENERR;
}
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Failed to set enable echo cancellation.\n");
}
switch(codec) {
case FTDM_CODEC_ULAW:
{
dname = "PCMU";
}
break;
case FTDM_CODEC_ALAW:
{
dname = "PCMA";
}
break;
case FTDM_CODEC_SLIN:
{
dname = "L16";
}
break;
default:
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid codec value retrieved from channel, codec value: %d\n", codec);
goto fail;
}
}
if (switch_core_codec_init(&tech_pvt->read_codec,
dname,
NULL,
8000,
interval,
1,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
goto fail;
} else {
if (switch_core_codec_init(&tech_pvt->write_codec,
dname,
NULL,
8000,
interval,
1,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
switch_core_codec_destroy(&tech_pvt->read_codec);
goto fail;
}
}
if (switch_core_session_set_read_codec(*new_session, &tech_pvt->read_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set read codec?\n");
goto fail;
}
if (switch_core_session_set_write_codec(*new_session, &tech_pvt->write_codec) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't set write codec?\n");
}
if (switch_core_session_thread_launch(*new_session) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't start session thread.\n");
goto fail;
}
switch_channel_mark_answered(channel);
return SWITCH_CAUSE_SUCCESS;
fail:
if (tech_pvt) {
if (tech_pvt->ftdm_channel) {
ftdm_channel_close(&tech_pvt->ftdm_channel);
}
if (tech_pvt->read_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (tech_pvt->write_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
}
if (*new_session) {
switch_core_session_destroy(new_session);
}
return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
}
