static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
ctdm_private_t *tech_pvt = switch_core_session_get_private(session);
if ((tech_pvt = switch_core_session_get_private(session))) {
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 enable echo cancellation.\n");
}
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);
}
switch_core_session_unset_read_codec(session);
switch_core_session_unset_write_codec(session);
ftdm_channel_close(&tech_pvt->ftdm_channel);
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
crtp_private_t *tech_pvt;
switch_channel_t *channel;
//int frames = 0, bytes = 0, samples = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
#if 0
if (!switch_test_flag(frame, SFF_CNG) && !switch_test_flag(frame, SFF_PROXY_PACKET)) {
if (tech_pvt->read_codec.implementation->encoded_bytes_per_packet) {
bytes = tech_pvt->read_codec.implementation->encoded_bytes_per_packet;
frames = ((int) frame->datalen / bytes);
} else
frames = 1;
samples = frames * tech_pvt->read_codec.implementation->samples_per_packet;
}
tech_pvt->timestamp_send += samples;
#endif
if (tech_pvt->mode == RTP_RECVONLY) {
return SWITCH_STATUS_SUCCESS;
}
switch_rtp_write_frame(tech_pvt->rtp_session, frame);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
switch (sig) {
case SWITCH_SIG_BREAK:
break;
case SWITCH_SIG_KILL:
tech_pvt->dead = 1;
break;
default:
break;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL KILL\n", switch_channel_get_name(channel));
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf)
{
private_t *tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_hangup(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
switch_clear_flag_locked(tech_pvt, TFLAG_LINKED);
switch_mutex_lock(tech_pvt->mutex);
if (tech_pvt->other_tech_pvt) {
switch_clear_flag_locked(tech_pvt->other_tech_pvt, TFLAG_LINKED);
tech_pvt->other_tech_pvt = NULL;
}
if (tech_pvt->other_session) {
switch_channel_hangup(tech_pvt->other_channel, switch_channel_get_cause(channel));
switch_core_session_rwunlock(tech_pvt->other_session);
tech_pvt->other_channel = NULL;
tech_pvt->other_session = NULL;
}
switch_mutex_unlock(tech_pvt->mutex);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch (sig) {
case SWITCH_SIG_KILL:
switch_clear_flag_locked(tech_pvt, TFLAG_IO);
switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
//switch_thread_cond_signal(tech_pvt->cond);
break;
case SWITCH_SIG_BREAK:
switch_set_flag_locked(tech_pvt, TFLAG_BREAK);
break;
default:
break;
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_hangup(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_clear_flag_locked(tech_pvt, TFLAG_IO);
switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
//switch_thread_cond_signal(tech_pvt->cond);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
switch_mutex_lock(globals.mutex);
globals.calls--;
if (globals.calls < 0) {
globals.calls = 0;
}
switch_mutex_unlock(globals.mutex);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_routing(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
const char *app, *arg;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
do_reset(tech_pvt);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL ROUTING\n", switch_channel_get_name(channel));
if (!switch_test_flag(tech_pvt, TFLAG_OUTBOUND) && (app = switch_channel_get_variable(channel, "loopback_app"))) {
switch_caller_extension_t *extension = NULL;
arg = switch_channel_get_variable(channel, "loopback_app_arg");
extension = switch_caller_extension_new(session, app, app);
switch_caller_extension_add_application(session, extension, "pre_answer", NULL);
switch_caller_extension_add_application(session, extension, app, arg);
switch_channel_set_caller_extension(channel, extension);
switch_channel_set_state(channel, CS_EXECUTE);
return SWITCH_STATUS_FALSE;
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
void *pop;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
if (tech_pvt) {
switch_core_timer_destroy(&tech_pvt->timer);
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);
}
if (tech_pvt->write_frame) {
switch_frame_free(&tech_pvt->write_frame);
}
while (switch_queue_trypop(tech_pvt->frame_queue, &pop) == SWITCH_STATUS_SUCCESS && pop) {
switch_frame_t *frame = (switch_frame_t *) pop;
switch_frame_free(&frame);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
switch (sig) {
case SWITCH_SIG_BREAK:
break;
case SWITCH_SIG_KILL:
switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
switch_clear_flag_locked(tech_pvt, TFLAG_LINKED);
switch_mutex_lock(tech_pvt->mutex);
if (tech_pvt->other_tech_pvt) {
switch_clear_flag_locked(tech_pvt->other_tech_pvt, TFLAG_LINKED);
}
switch_mutex_unlock(tech_pvt->mutex);
break;
default:
break;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL KILL\n", switch_channel_get_name(channel));
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
//switch_frame_t *pframe;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
return SWITCH_STATUS_FALSE;
}
#if SWITCH_BYTE_ORDER == __BIG_ENDIAN
if (switch_test_flag(tech_pvt, TFLAG_LINEAR)) {
switch_swap_linear(frame->data, (int) frame->datalen / 2);
}
#endif
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
crtp_private_t *tech_pvt = switch_core_session_get_private(session);
if ((tech_pvt = switch_core_session_get_private(session))) {
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);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_hibernate(switch_core_session_t *session)
{
switch_assert(switch_core_session_get_private(session));
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s HIBERNATE\n",
switch_channel_get_name(switch_core_session_get_channel(session)));
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags, int stream_id)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
//switch_time_t started = switch_time_now();
//unsigned int elapsed;
switch_byte_t *data;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
tech_pvt->read_frame.flags = SFF_NONE;
*frame = NULL;
while (switch_test_flag(tech_pvt, TFLAG_IO)) {
if (switch_test_flag(tech_pvt, TFLAG_BREAK)) {
switch_clear_flag(tech_pvt, TFLAG_BREAK);
goto cng;
}
if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
return SWITCH_STATUS_FALSE;
}
if (switch_test_flag(tech_pvt, TFLAG_IO) && switch_test_flag(tech_pvt, TFLAG_VOICE)) {
switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
if (!tech_pvt->read_frame.datalen) {
continue;
}
*frame = &tech_pvt->read_frame;
#if SWITCH_BYTE_ORDER == __BIG_ENDIAN
if (switch_test_flag(tech_pvt, TFLAG_LINEAR)) {
switch_swap_linear((*frame)->data, (int) (*frame)->datalen / 2);
}
#endif
return SWITCH_STATUS_SUCCESS;
}
switch_cond_next();
}
return SWITCH_STATUS_FALSE;
cng:
data = (switch_byte_t *) tech_pvt->read_frame.data;
data[0] = 65;
data[1] = 0;
tech_pvt->read_frame.datalen = 2;
tech_pvt->read_frame.flags = SFF_CNG;
*frame = &tech_pvt->read_frame;
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t loopback_bowout_on_execute_state_handler(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_channel_state_t state = switch_channel_get_state(channel);
private_t *tech_pvt = NULL;
if (state == CS_EXECUTE) {
const char *uuid;
switch_core_session_t *other_session = NULL;
switch_channel_t *b_channel = NULL;
tech_pvt = switch_core_session_get_private(session);
if (switch_core_session_read_lock(tech_pvt->other_session) == SWITCH_STATUS_SUCCESS) {
b_channel = switch_core_session_get_channel(tech_pvt->other_session);
/* Wait for b_channel to be fully bridged */
switch_channel_wait_for_flag(b_channel, CF_BRIDGED, SWITCH_TRUE, 5000, NULL);
uuid = switch_channel_get_partner_uuid(b_channel);
if (uuid && (other_session = switch_core_session_locate(uuid))) {
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_caller_profile_t *cp, *clone;
switch_channel_wait_for_state(other_channel, NULL, CS_EXCHANGE_MEDIA);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->other_session), SWITCH_LOG_INFO, "Replacing loopback channel: %s with real channel: %s\n",
switch_channel_get_name(b_channel), switch_channel_get_name(other_channel));
if ((cp = switch_channel_get_caller_profile(channel))) {
clone = switch_caller_profile_clone(other_session, cp);
clone->originator_caller_profile = NULL;
clone->originatee_caller_profile = NULL;
switch_channel_set_caller_profile(other_channel, clone);
}
switch_channel_caller_extension_masquerade(channel, other_channel, 0);
switch_channel_set_state(other_channel, CS_RESET);
switch_channel_wait_for_state(other_channel, NULL, CS_RESET);
switch_channel_set_variable(channel, "process_cdr", "false");
switch_channel_set_variable(b_channel, "process_cdr", "false");
switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
switch_channel_set_state(other_channel, CS_EXECUTE);
switch_core_session_rwunlock(other_session);
}
switch_core_session_rwunlock(tech_pvt->other_session);
}
switch_core_event_hook_remove_state_change(session, loopback_bowout_on_execute_state_handler);
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_reset(switch_core_session_t *session)
{
private_t *tech_pvt = (private_t *) switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
do_reset(tech_pvt);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s RESET\n",
switch_channel_get_name(switch_core_session_get_channel(session)));
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_receive_event(switch_core_session_t *session, switch_event_t *event)
{
struct private_object *tech_pvt = switch_core_session_get_private(session);
char *body = switch_event_get_body(event);
switch_assert(tech_pvt != NULL);
if (!body) {
body = "";
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_routing(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf)
{
private_t *tech_pvt = NULL;
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
if (tech_pvt->other_channel) {
switch_channel_queue_dtmf(tech_pvt->other_channel, dtmf);
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf)
{
ctdm_private_t *tech_pvt = NULL;
char tmp[2] = "";
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
tmp[0] = dtmf->digit;
ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_SEND_DTMF, tmp);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_exchange_media(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
loopback_private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "CHANNEL LOOPBACK\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_execute(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
return SWITCH_STATUS_SUCCESS;
}
uint8_t sofia_media_negotiate_sdp(switch_core_session_t *session, const char *r_sdp)
{
uint8_t t, p = 0;
private_object_t *tech_pvt = switch_core_session_get_private(session);
if ((t = switch_core_media_negotiate_sdp(session, r_sdp, &p))) {
sofia_set_flag_locked(tech_pvt, TFLAG_SDP);
}
if (!p) {
sofia_set_flag(tech_pvt, TFLAG_NOREPLY);
}
return t;
}
static switch_status_t channel_on_consume_media(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "CHANNEL CONSUME_MEDIA\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_execute(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
switch_caller_extension_t *exten;
int bow = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
if ((exten = switch_channel_get_caller_extension(channel))) {
switch_caller_application_t *app_p;
for (app_p = exten->applications; app_p; app_p = app_p->next) {
int32_t flags;
switch_core_session_get_app_flags(app_p->application_name, &flags);
if ((flags & SAF_NO_LOOPBACK)) {
bow = 1;
break;
}
}
}
if (bow) {
switch_core_session_t *other_session;
const char *other_uuid;
if ((find_non_loopback_bridge(tech_pvt->other_session, &other_session, &other_uuid) == SWITCH_STATUS_SUCCESS)) {
switch_caller_extension_t *extension;
switch_channel_t *other_channel = switch_core_session_get_channel(other_session);
switch_caller_extension_clone(&extension, exten, switch_core_session_get_pool(other_session));
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_INFO, "BOWOUT Transfering current extension to non-loopback leg.\n");
switch_channel_transfer_to_extension(other_channel, extension);
switch_core_session_rwunlock(other_session);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
ftdm_wait_flag_t wflags = FTDM_WRITE;
ctdm_private_t *tech_pvt;
const char *name;
switch_channel_t *channel;
uint32_t span_id, chan_id;
ftdm_size_t len;
unsigned char data[SWITCH_RECOMMENDED_BUFFER_SIZE] = {0};
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
span_id = ftdm_channel_get_span_id(tech_pvt->ftdm_channel);
chan_id = ftdm_channel_get_id(tech_pvt->ftdm_channel);
name = switch_channel_get_name(channel);
if (switch_test_flag(frame, SFF_CNG)) {
frame->data = data;
frame->buflen = sizeof(data);
if ((frame->datalen = tech_pvt->write_codec.implementation->encoded_bytes_per_packet) > frame->buflen) {
goto fail;
}
memset(data, 255, frame->datalen);
}
wflags = FTDM_WRITE;
ftdm_channel_wait(tech_pvt->ftdm_channel, &wflags, ftdm_channel_get_io_interval(tech_pvt->ftdm_channel) * 10);
if (!(wflags & FTDM_WRITE)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Dropping frame! (write not ready) in channel %s device %d:%d!\n", name, span_id, chan_id);
return SWITCH_STATUS_SUCCESS;
}
len = frame->datalen;
if (ftdm_channel_write(tech_pvt->ftdm_channel, frame->data, frame->buflen, &len) != FTDM_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Failed to write to channel %s device %d:%d!\n", name, span_id, chan_id);
}
return SWITCH_STATUS_SUCCESS;
fail:
return SWITCH_STATUS_GENERR;
}
static switch_status_t channel_on_hangup(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
t31_call_event(tech_pvt->modem->t31_state, AT_CALL_EVENT_HANGUP);
return SWITCH_STATUS_SUCCESS;
}
/*
State methods they get called when the state changes to the specific state
returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
*/
static switch_status_t channel_on_init(switch_core_session_t *session)
{
switch_channel_t *channel;
private_t *tech_pvt = NULL;
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
switch_set_flag_locked(tech_pvt, TFLAG_IO);
switch_mutex_lock(globals.mutex);
globals.calls++;
switch_mutex_unlock(globals.mutex);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags, int stream_id)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
switch_status_t status = SWITCH_STATUS_SUCCESS;
int r, samples_wanted, samples_read = 0;
int16_t *data;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
switch_assert(tech_pvt != NULL);
if (tech_pvt->dead) return SWITCH_STATUS_FALSE;
data = tech_pvt->read_frame.data;
samples_wanted = tech_pvt->read_codec.implementation->samples_per_packet;
tech_pvt->read_frame.flags = SFF_NONE;
switch_core_timer_next(&tech_pvt->timer);
do {
r = t31_tx(tech_pvt->modem->t31_state, data + samples_read, samples_wanted - samples_read);
if (r < 0) break;
samples_read += r;
} while(samples_read < samples_wanted && r > 0);
if (r < 0) {
return SWITCH_STATUS_FALSE;
} else if (samples_read < samples_wanted) {
memset(data + samples_read, 0, sizeof(int16_t)*(samples_wanted - samples_read));
samples_read = samples_wanted;
}
tech_pvt->read_frame.samples = samples_read;
tech_pvt->read_frame.datalen = samples_read * 2;
*frame = &tech_pvt->read_frame;
return status;
}
static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags, int stream_id)
{
crtp_private_t *tech_pvt;
switch_channel_t *channel;
switch_status_t status;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (!tech_pvt->rtp_session || tech_pvt->mode == RTP_SENDONLY) {
switch_yield(20000); /* replace by local timer XXX */
goto cng;
}
if (switch_rtp_has_dtmf(tech_pvt->rtp_session)) {
switch_dtmf_t dtmf = { 0 };
switch_rtp_dequeue_dtmf(tech_pvt->rtp_session, &dtmf);
switch_channel_queue_dtmf(channel, &dtmf);
}
tech_pvt->read_frame.flags = SFF_NONE;
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
status = switch_rtp_zerocopy_read_frame(tech_pvt->rtp_session, &tech_pvt->read_frame, flags);
if (status != SWITCH_STATUS_SUCCESS && status != SWITCH_STATUS_BREAK) {
goto cng;
}
*frame = &tech_pvt->read_frame;
return SWITCH_STATUS_SUCCESS;
cng:
*frame = &tech_pvt->read_frame;
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
tech_pvt->read_frame.flags |= SFF_CNG;
tech_pvt->read_frame.datalen = 0;
return SWITCH_STATUS_SUCCESS;
}
