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 void switch_core_standard_on_hangup(switch_core_session_t *session) { switch_caller_extension_t *extension; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard HANGUP, cause: %s\n", switch_channel_get_name(session->channel), switch_channel_cause2str(switch_channel_get_cause(session->channel))); if (!switch_channel_test_flag(session->channel, CF_ZOMBIE_EXEC)) { return; } if ((extension = switch_channel_get_caller_extension(session->channel)) == 0) { return; } while(extension->current_application) { switch_caller_application_t *current_application = extension->current_application; switch_status_t status; extension->current_application = extension->current_application->next; status = switch_core_session_execute_application(session, current_application->application_name, current_application->application_data); if (status != SWITCH_STATUS_SUCCESS && status != SWITCH_STATUS_IGNORE) { return; } } }
static switch_status_t channel_on_hibernate(switch_core_session_t *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; }
SWITCH_DECLARE(switch_status_t) switch_core_session_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf) { switch_io_event_hook_send_dtmf_t *ptr; switch_status_t status = SWITCH_STATUS_FALSE; switch_dtmf_t new_dtmf; if (switch_channel_down(session->channel)) { return SWITCH_STATUS_FALSE; } switch_assert(dtmf); new_dtmf = *dtmf; if (new_dtmf.duration > switch_core_max_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s EXCESSIVE DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), new_dtmf.digit, new_dtmf.duration); new_dtmf.duration = switch_core_max_dtmf_duration(0); } else if (new_dtmf.duration < switch_core_min_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s SHORT DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), new_dtmf.digit, new_dtmf.duration); new_dtmf.duration = switch_core_min_dtmf_duration(0); } else if (!new_dtmf.duration) { new_dtmf.duration = switch_core_default_dtmf_duration(0); } for (ptr = session->event_hooks.send_dtmf; ptr; ptr = ptr->next) { if ((status = ptr->send_dtmf(session, dtmf, SWITCH_DTMF_SEND)) != SWITCH_STATUS_SUCCESS) { return SWITCH_STATUS_SUCCESS; } } if (session->endpoint_interface->io_routines->send_dtmf) { if (dtmf->digit == 'w') { switch_yield(500000); } else if (dtmf->digit == 'W') { switch_yield(1000000); } else { status = session->endpoint_interface->io_routines->send_dtmf(session, &new_dtmf); } } return status; }
SWITCH_DECLARE(switch_status_t) switch_core_session_recv_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf) { switch_io_event_hook_recv_dtmf_t *ptr; switch_status_t status; switch_dtmf_t new_dtmf; int fed = 0; if (switch_channel_down(session->channel)) { return SWITCH_STATUS_FALSE; } switch_assert(dtmf); new_dtmf = *dtmf; if (new_dtmf.duration > switch_core_max_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s EXCESSIVE DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), new_dtmf.digit, new_dtmf.duration); new_dtmf.duration = switch_core_max_dtmf_duration(0); } else if (new_dtmf.duration < switch_core_min_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s SHORT DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), new_dtmf.digit, new_dtmf.duration); new_dtmf.duration = switch_core_min_dtmf_duration(0); } else if (!new_dtmf.duration) { new_dtmf.duration = switch_core_default_dtmf_duration(0); } if (!switch_test_flag(dtmf, DTMF_FLAG_SKIP_PROCESS)) { if (session->dmachine && !switch_channel_test_flag(session->channel, CF_BROADCAST)) { char str[2] = { dtmf->digit, '\0' }; switch_ivr_dmachine_feed(session->dmachine, str, NULL); fed = 1; } for (ptr = session->event_hooks.recv_dtmf; ptr; ptr = ptr->next) { if ((status = ptr->recv_dtmf(session, &new_dtmf, SWITCH_DTMF_RECV)) != SWITCH_STATUS_SUCCESS) { return status; } } } return fed ? SWITCH_STATUS_FALSE : 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_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; }
SWITCH_DECLARE(switch_status_t) switch_core_session_perform_kill_channel(switch_core_session_t *session, const char *file, const char *func, int line, switch_signal_t sig) { switch_io_event_hook_kill_channel_t *ptr; switch_status_t status = SWITCH_STATUS_FALSE; switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_core_session_get_uuid(session), SWITCH_LOG_DEBUG, "Send signal %s [%s]\n", switch_channel_get_name(session->channel), SIG_NAMES[sig]); if (session->endpoint_interface->io_routines->kill_channel) { if ((status = session->endpoint_interface->io_routines->kill_channel(session, sig)) == SWITCH_STATUS_SUCCESS) { for (ptr = session->event_hooks.kill_channel; ptr; ptr = ptr->next) { if ((status = ptr->kill_channel(session, sig)) != SWITCH_STATUS_SUCCESS) { break; } } } } return status; }
static void switch_core_standard_on_execute(switch_core_session_t *session) { switch_caller_extension_t *extension; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard EXECUTE\n", switch_channel_get_name(session->channel)); if (switch_channel_get_variable(session->channel, "recovered") && !switch_channel_test_flag(session->channel, CF_RECOVERED)) { switch_channel_set_flag(session->channel, CF_RECOVERED); } top: switch_channel_clear_flag(session->channel, CF_RESET); if ((extension = switch_channel_get_caller_extension(session->channel)) == 0) { switch_channel_hangup(session->channel, SWITCH_CAUSE_NORMAL_CLEARING); return; } while (switch_channel_get_state(session->channel) == CS_EXECUTE && extension->current_application) { switch_caller_application_t *current_application = extension->current_application; extension->current_application = extension->current_application->next; if (switch_core_session_execute_application(session, current_application->application_name, current_application->application_data) != SWITCH_STATUS_SUCCESS) { return; } if (switch_channel_test_flag(session->channel, CF_RESET)) { goto top; } } if (switch_channel_ready(session->channel) && switch_channel_get_state(session->channel) == CS_EXECUTE) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "%s has executed the last dialplan instruction, hanging up.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_NORMAL_CLEARING); } }
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_close(switch_media_bug_t **bug) { switch_media_bug_t *bp = *bug; if (bp) { if ((bp->thread_id && bp->thread_id != switch_thread_self()) || switch_test_flag(bp, SMBF_LOCK)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(*bug)), SWITCH_LOG_DEBUG, "BUG is thread locked skipping.\n"); return SWITCH_STATUS_FALSE; } if (bp->callback) { bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_CLOSE); bp->ready = 0; } switch_core_media_bug_destroy(bp); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(*bug)), SWITCH_LOG_DEBUG, "Removing BUG from %s\n", switch_channel_get_name(bp->session->channel)); *bug = NULL; return SWITCH_STATUS_SUCCESS; } return SWITCH_STATUS_FALSE; }
SWITCH_DECLARE(void) CoreSession::destroy(void) { this_check_void(); if (!allocated) { return; } allocated = 0; switch_safe_free(xml_cdr_text); switch_safe_free(uuid); switch_safe_free(tts_name); switch_safe_free(voice_name); if (session) { if (!channel) { channel = switch_core_session_get_channel(session); } if (channel) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s destroy/unlink session from object\n", switch_channel_get_name(channel)); switch_channel_set_private(channel, "CoreSession", NULL); if (switch_channel_up(channel) && switch_test_flag(this, S_HUP) && !switch_channel_test_flag(channel, CF_TRANSFER)) { switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING); } } switch_core_session_rwunlock(session); session = NULL; channel = NULL; } init_vars(); }
SWITCH_DECLARE(switch_status_t) switch_core_session_set_real_read_codec(switch_core_session_t *session, switch_codec_t *codec) { switch_event_t *event; switch_channel_t *channel = switch_core_session_get_channel(session); char tmp[30]; switch_status_t status = SWITCH_STATUS_SUCCESS; int changed_read_codec = 0; switch_mutex_lock(session->codec_read_mutex); if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) { codec = NULL; } if (codec) { /* set real_read_codec and read_codec */ if (!session->real_read_codec) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec set to %s:%d\n", switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode); session->read_codec = session->real_read_codec = codec; changed_read_codec = 1; if (codec->implementation) { session->read_impl = *codec->implementation; session->real_read_impl = *codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } } else { /* replace real_read_codec */ switch_codec_t *cur_codec; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec replaced with %s:%d\n", switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode); /* Set real_read_codec to front of the list of read_codecs */ cur_codec = session->read_codec; while (cur_codec != NULL) { if (cur_codec->next == session->real_read_codec) { cur_codec->next = codec; break; } cur_codec = cur_codec->next; } session->real_read_codec = codec; /* set read_codec with real_read_codec if it no longer is ready */ if (!switch_core_codec_ready(session->read_codec)) { session->read_codec = codec; changed_read_codec = 1; if (codec->implementation) { session->read_impl = *codec->implementation; session->real_read_impl = *codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } } } /* force media bugs to copy the read codec from the next frame */ switch_thread_rwlock_wrlock(session->bug_rwlock); if (switch_core_codec_ready(&session->bug_codec)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Destroying BUG Codec %s:%d\n", session->bug_codec.implementation->iananame, session->bug_codec.implementation->ianacode); switch_core_codec_destroy(&session->bug_codec); } switch_thread_rwlock_unlock(session->bug_rwlock); } else { status = SWITCH_STATUS_FALSE; goto end; } if (changed_read_codec && session->read_codec && session->read_impl.decoded_bytes_per_packet) { if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) { switch_channel_event_set_data(session->channel, event); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame); switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second); switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second); if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) { switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second); } switch_event_fire(&event); } switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame); switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second); switch_channel_set_variable(channel, "read_rate", tmp); session->raw_read_frame.codec = session->read_codec; session->raw_write_frame.codec = session->read_codec; session->enc_read_frame.codec = session->read_codec; session->enc_write_frame.codec = session->read_codec; } end: if (session->read_codec) { switch_channel_set_flag(channel, CF_MEDIA_SET); } switch_mutex_unlock(session->codec_read_mutex); return status; }
SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_session_t *session, switch_codec_t *codec) { switch_event_t *event; switch_channel_t *channel = switch_core_session_get_channel(session); char tmp[30]; switch_status_t status = SWITCH_STATUS_SUCCESS; switch_mutex_lock(session->codec_read_mutex); if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) { codec = NULL; } if (codec) { if (!session->real_read_codec) { session->read_codec = session->real_read_codec = codec; if (codec->implementation) { session->read_impl = *codec->implementation; session->real_read_impl = *codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } } else { if (codec == session->read_codec) { goto end; } switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Push codec %s:%d\n", switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode); codec->next = session->read_codec; session->read_codec = codec; if (codec->implementation) { session->read_impl = *codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } } } else { if (session->read_codec == session->real_read_codec) { goto end; } if (session->read_codec->next) { switch_codec_t *old = session->read_codec; session->read_codec = session->read_codec->next; if (session->read_codec->implementation) { session->read_impl = *session->read_codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } old->next = NULL; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Restore previous codec %s:%d.\n", switch_channel_get_name(session->channel), session->read_impl.iananame ? session->read_impl.iananame : "N/A", session->read_impl.ianacode); } else if (session->real_read_codec) { session->read_codec = session->real_read_codec; if (session->real_read_codec->implementation) { session->read_impl = *session->real_read_codec->implementation; } else { memset(&session->read_impl, 0, sizeof(session->read_impl)); } switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Restore original codec.\n"); } else { status = SWITCH_STATUS_FALSE; goto end; } } if (!session->read_codec) { status = SWITCH_STATUS_FALSE; goto end; } if (session->read_codec && session->read_impl.decoded_bytes_per_packet) { if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) { switch_channel_event_set_data(session->channel, event); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame); switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second); switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second); if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) { switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second); } switch_event_fire(&event); } switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame); switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second); switch_channel_set_variable(channel, "read_rate", tmp); session->raw_read_frame.codec = session->read_codec; session->raw_write_frame.codec = session->read_codec; session->enc_read_frame.codec = session->read_codec; session->enc_write_frame.codec = session->read_codec; } end: if (session->read_codec) { switch_channel_set_flag(channel, CF_MEDIA_SET); } switch_mutex_unlock(session->codec_read_mutex); return status; }
SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id) { switch_status_t status = SWITCH_STATUS_FALSE; switch_frame_t *enc_frame = NULL, *write_frame = frame; unsigned int flag = 0, need_codec = 0, perfect = 0, do_bugs = 0, do_write = 0, do_resample = 0, ptime_mismatch = 0, pass_cng = 0, resample = 0; int did_write_resample = 0; switch_assert(session != NULL); switch_assert(frame != NULL); if (!switch_channel_ready(session->channel)) { return SWITCH_STATUS_FALSE; } if (switch_mutex_trylock(session->codec_write_mutex) == SWITCH_STATUS_SUCCESS) { switch_mutex_unlock(session->codec_write_mutex); } else { return SWITCH_STATUS_SUCCESS; } if (switch_test_flag(frame, SFF_CNG)) { if (switch_channel_test_flag(session->channel, CF_ACCEPT_CNG)) { pass_cng = 1; } else { return SWITCH_STATUS_SUCCESS; } } if (!(session->write_codec && switch_core_codec_ready(session->write_codec)) && !pass_cng) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no write codec.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION); return SWITCH_STATUS_FALSE; } if (switch_channel_test_flag(session->channel, CF_HOLD)) { return SWITCH_STATUS_SUCCESS; } if (switch_test_flag(frame, SFF_PROXY_PACKET) || pass_cng) { /* Fast PASS! */ switch_mutex_lock(session->codec_write_mutex); status = perform_write(session, frame, flag, stream_id); switch_mutex_unlock(session->codec_write_mutex); return status; } switch_mutex_lock(session->codec_write_mutex); if (!(frame->codec && frame->codec->implementation)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has received a bad frame with no codec!\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER); switch_mutex_unlock(session->codec_write_mutex); return SWITCH_STATUS_FALSE; } switch_assert(frame->codec != NULL); switch_assert(frame->codec->implementation != NULL); if (!(switch_core_codec_ready(session->write_codec) && frame->codec) || !switch_channel_ready(session->channel) || !switch_channel_media_ready(session->channel)) { switch_mutex_unlock(session->codec_write_mutex); return SWITCH_STATUS_FALSE; } switch_mutex_lock(session->write_codec->mutex); switch_mutex_lock(frame->codec->mutex); if (!(switch_core_codec_ready(session->write_codec) && switch_core_codec_ready(frame->codec))) goto error; if ((session->write_codec && frame->codec && session->write_codec->implementation != frame->codec->implementation)) { if (session->write_impl.codec_id == frame->codec->implementation->codec_id || session->write_impl.microseconds_per_packet != frame->codec->implementation->microseconds_per_packet) { ptime_mismatch = TRUE; if ((switch_test_flag(frame->codec, SWITCH_CODEC_FLAG_PASSTHROUGH) || switch_test_flag(session->read_codec, SWITCH_CODEC_FLAG_PASSTHROUGH)) || switch_channel_test_flag(session->channel, CF_PASSTHRU_PTIME_MISMATCH)) { status = perform_write(session, frame, flags, stream_id); goto error; } } need_codec = TRUE; } if (session->write_codec && !frame->codec) { need_codec = TRUE; } if (session->bugs && !need_codec) { do_bugs = TRUE; need_codec = TRUE; } if (frame->codec->implementation->actual_samples_per_second != session->write_impl.actual_samples_per_second) { need_codec = TRUE; do_resample = TRUE; } if (switch_test_flag(session, SSF_WRITE_TRANSCODE) && !need_codec && switch_core_codec_ready(session->write_codec)) { switch_core_session_t *other_session; const char *uuid = switch_channel_get_variable(switch_core_session_get_channel(session), SWITCH_SIGNAL_BOND_VARIABLE); if (uuid && (other_session = switch_core_session_locate(uuid))) { switch_set_flag(other_session, SSF_READ_CODEC_RESET); switch_set_flag(other_session, SSF_READ_CODEC_RESET); switch_set_flag(other_session, SSF_WRITE_CODEC_RESET); switch_core_session_rwunlock(other_session); } switch_clear_flag(session, SSF_WRITE_TRANSCODE); } if (switch_test_flag(session, SSF_WRITE_CODEC_RESET)) { switch_core_codec_reset(session->write_codec); switch_clear_flag(session, SSF_WRITE_CODEC_RESET); } if (!need_codec) { do_write = TRUE; write_frame = frame; goto done; } if (!switch_test_flag(session, SSF_WARN_TRANSCODE)) { switch_core_session_message_t msg = { 0 }; msg.message_id = SWITCH_MESSAGE_INDICATE_TRANSCODING_NECESSARY; switch_core_session_receive_message(session, &msg); switch_set_flag(session, SSF_WARN_TRANSCODE); } if (frame->codec) { session->raw_write_frame.datalen = session->raw_write_frame.buflen; status = switch_core_codec_decode(frame->codec, session->write_codec, frame->data, frame->datalen, session->write_impl.actual_samples_per_second, session->raw_write_frame.data, &session->raw_write_frame.datalen, &session->raw_write_frame.rate, &frame->flags); if (do_resample && status == SWITCH_STATUS_SUCCESS) { status = SWITCH_STATUS_RESAMPLE; } switch (status) { case SWITCH_STATUS_RESAMPLE: resample++; write_frame = &session->raw_write_frame; write_frame->rate = frame->codec->implementation->actual_samples_per_second; if (!session->write_resampler) { switch_mutex_lock(session->resample_mutex); status = switch_resample_create(&session->write_resampler, frame->codec->implementation->actual_samples_per_second, session->write_impl.actual_samples_per_second, session->write_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1); switch_mutex_unlock(session->resample_mutex); if (status != SWITCH_STATUS_SUCCESS) { goto done; } } break; case SWITCH_STATUS_SUCCESS: session->raw_write_frame.samples = session->raw_write_frame.datalen / sizeof(int16_t); session->raw_write_frame.timestamp = frame->timestamp; session->raw_write_frame.rate = frame->rate; session->raw_write_frame.m = frame->m; session->raw_write_frame.ssrc = frame->ssrc; session->raw_write_frame.seq = frame->seq; session->raw_write_frame.payload = frame->payload; session->raw_write_frame.flags = 0; if (switch_test_flag(frame, SFF_PLC)) { session->raw_write_frame.flags |= SFF_PLC; } write_frame = &session->raw_write_frame; break; case SWITCH_STATUS_BREAK: status = SWITCH_STATUS_SUCCESS; goto error; case SWITCH_STATUS_NOOP: if (session->write_resampler) { switch_mutex_lock(session->resample_mutex); switch_resample_destroy(&session->write_resampler); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating write resampler\n"); switch_mutex_unlock(session->resample_mutex); } write_frame = frame; status = SWITCH_STATUS_SUCCESS; break; default: if (status == SWITCH_STATUS_NOT_INITALIZED) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n"); goto error; } if (ptime_mismatch) { status = perform_write(session, frame, flags, stream_id); status = SWITCH_STATUS_SUCCESS; goto error; } switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s decoder error!\n", frame->codec->codec_interface->interface_name); goto error; } } if (session->write_resampler) { short *data = write_frame->data; switch_mutex_lock(session->resample_mutex); if (session->write_resampler) { switch_resample_process(session->write_resampler, data, write_frame->datalen / 2); memcpy(data, session->write_resampler->to, session->write_resampler->to_len * 2); write_frame->samples = session->write_resampler->to_len; write_frame->datalen = write_frame->samples * 2; write_frame->rate = session->write_resampler->to_rate; did_write_resample = 1; } switch_mutex_unlock(session->resample_mutex); } if (session->bugs) { switch_media_bug_t *bp; int prune = 0; switch_thread_rwlock_rdlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { switch_bool_t ok = SWITCH_TRUE; if (!bp->ready) { continue; } if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) { continue; } if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) { continue; } if (switch_test_flag(bp, SMBF_PRUNE)) { prune++; continue; } if (switch_test_flag(bp, SMBF_WRITE_STREAM)) { switch_mutex_lock(bp->write_mutex); switch_buffer_write(bp->raw_write_buffer, write_frame->data, write_frame->datalen); switch_mutex_unlock(bp->write_mutex); if (bp->callback) { ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_WRITE); } } if (switch_test_flag(bp, SMBF_WRITE_REPLACE)) { do_bugs = 0; if (bp->callback) { bp->write_replace_frame_in = write_frame; bp->write_replace_frame_out = write_frame; if ((ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_WRITE_REPLACE)) == SWITCH_TRUE) { write_frame = bp->write_replace_frame_out; } } } if (bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL)) { ok = SWITCH_FALSE; } if (ok == SWITCH_FALSE) { switch_set_flag(bp, SMBF_PRUNE); prune++; } } switch_thread_rwlock_unlock(session->bug_rwlock); if (prune) { switch_core_media_bug_prune(session); } } if (do_bugs) { do_write = TRUE; write_frame = frame; goto done; } if (session->write_codec) { if (!ptime_mismatch && write_frame->codec && write_frame->codec->implementation && write_frame->codec->implementation->decoded_bytes_per_packet == session->write_impl.decoded_bytes_per_packet) { perfect = TRUE; } if (perfect) { if (write_frame->datalen < session->write_impl.decoded_bytes_per_packet) { memset(write_frame->data, 255, session->write_impl.decoded_bytes_per_packet - write_frame->datalen); write_frame->datalen = session->write_impl.decoded_bytes_per_packet; } enc_frame = write_frame; session->enc_write_frame.datalen = session->enc_write_frame.buflen; status = switch_core_codec_encode(session->write_codec, frame->codec, enc_frame->data, enc_frame->datalen, session->write_impl.actual_samples_per_second, session->enc_write_frame.data, &session->enc_write_frame.datalen, &session->enc_write_frame.rate, &flag); switch (status) { case SWITCH_STATUS_RESAMPLE: resample++; /* switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Fixme 2\n"); */ case SWITCH_STATUS_SUCCESS: session->enc_write_frame.codec = session->write_codec; session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t); if (frame->codec->implementation->samples_per_packet != session->write_impl.samples_per_packet) { session->enc_write_frame.timestamp = 0; } else { session->enc_write_frame.timestamp = frame->timestamp; } session->enc_write_frame.payload = session->write_impl.ianacode; session->enc_write_frame.m = frame->m; session->enc_write_frame.ssrc = frame->ssrc; session->enc_write_frame.seq = frame->seq; write_frame = &session->enc_write_frame; break; case SWITCH_STATUS_NOOP: enc_frame->codec = session->write_codec; enc_frame->samples = enc_frame->datalen / sizeof(int16_t); enc_frame->timestamp = frame->timestamp; enc_frame->m = frame->m; enc_frame->seq = frame->seq; enc_frame->ssrc = frame->ssrc; enc_frame->payload = enc_frame->codec->implementation->ianacode; write_frame = enc_frame; status = SWITCH_STATUS_SUCCESS; break; case SWITCH_STATUS_NOT_INITALIZED: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n"); write_frame = NULL; goto error; default: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error!\n", session->read_codec->codec_interface->interface_name); write_frame = NULL; goto error; } if (flag & SFF_CNG) { switch_set_flag(write_frame, SFF_CNG); } status = perform_write(session, write_frame, flags, stream_id); goto error; } else { if (!session->raw_write_buffer) { switch_size_t bytes_per_packet = session->write_impl.decoded_bytes_per_packet; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Engaging Write Buffer at %u bytes to accommodate %u->%u\n", (uint32_t) bytes_per_packet, write_frame->datalen, session->write_impl.decoded_bytes_per_packet); if ((status = switch_buffer_create_dynamic(&session->raw_write_buffer, bytes_per_packet * SWITCH_BUFFER_BLOCK_FRAMES, bytes_per_packet * SWITCH_BUFFER_START_FRAMES, 0)) != SWITCH_STATUS_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Write Buffer Failed!\n"); goto error; } } if (!(switch_buffer_write(session->raw_write_buffer, write_frame->data, write_frame->datalen))) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Write Buffer %u bytes Failed!\n", write_frame->datalen); status = SWITCH_STATUS_MEMERR; goto error; } status = SWITCH_STATUS_SUCCESS; while (switch_buffer_inuse(session->raw_write_buffer) >= session->write_impl.decoded_bytes_per_packet) { int rate; if (switch_channel_down(session->channel) || !session->raw_write_buffer) { goto error; } if ((session->raw_write_frame.datalen = (uint32_t) switch_buffer_read(session->raw_write_buffer, session->raw_write_frame.data, session->write_impl.decoded_bytes_per_packet)) == 0) { goto error; } enc_frame = &session->raw_write_frame; session->raw_write_frame.rate = session->write_impl.actual_samples_per_second; session->enc_write_frame.datalen = session->enc_write_frame.buflen; session->enc_write_frame.timestamp = 0; if (frame->codec && frame->codec->implementation && switch_core_codec_ready(frame->codec)) { rate = frame->codec->implementation->actual_samples_per_second; } else { rate = session->write_impl.actual_samples_per_second; } status = switch_core_codec_encode(session->write_codec, frame->codec, enc_frame->data, enc_frame->datalen, rate, session->enc_write_frame.data, &session->enc_write_frame.datalen, &session->enc_write_frame.rate, &flag); switch (status) { case SWITCH_STATUS_RESAMPLE: resample++; session->enc_write_frame.codec = session->write_codec; session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t); session->enc_write_frame.m = frame->m; session->enc_write_frame.ssrc = frame->ssrc; session->enc_write_frame.payload = session->write_impl.ianacode; write_frame = &session->enc_write_frame; if (!session->write_resampler) { switch_mutex_lock(session->resample_mutex); if (!session->write_resampler) { status = switch_resample_create(&session->write_resampler, frame->codec->implementation->actual_samples_per_second, session->write_impl.actual_samples_per_second, session->write_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1); } switch_mutex_unlock(session->resample_mutex); if (status != SWITCH_STATUS_SUCCESS) { goto done; } } break; case SWITCH_STATUS_SUCCESS: session->enc_write_frame.codec = session->write_codec; session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t); session->enc_write_frame.m = frame->m; session->enc_write_frame.ssrc = frame->ssrc; session->enc_write_frame.payload = session->write_impl.ianacode; write_frame = &session->enc_write_frame; break; case SWITCH_STATUS_NOOP: if (session->write_resampler) { switch_mutex_lock(session->resample_mutex); if (session->write_resampler) { switch_resample_destroy(&session->write_resampler); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating write resampler\n"); } switch_mutex_unlock(session->resample_mutex); } enc_frame->codec = session->write_codec; enc_frame->samples = enc_frame->datalen / sizeof(int16_t); enc_frame->m = frame->m; enc_frame->ssrc = frame->ssrc; enc_frame->payload = enc_frame->codec->implementation->ianacode; write_frame = enc_frame; status = SWITCH_STATUS_SUCCESS; break; case SWITCH_STATUS_NOT_INITALIZED: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n"); write_frame = NULL; goto error; default: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error %d!\n", session->read_codec->codec_interface->interface_name, status); write_frame = NULL; goto error; } if (!did_write_resample && session->read_resampler) { short *data = write_frame->data; switch_mutex_lock(session->resample_mutex); if (session->read_resampler) { switch_resample_process(session->read_resampler, data, write_frame->datalen / 2); memcpy(data, session->read_resampler->to, session->read_resampler->to_len * 2); write_frame->samples = session->read_resampler->to_len; write_frame->datalen = session->read_resampler->to_len * 2; write_frame->rate = session->read_resampler->to_rate; } switch_mutex_unlock(session->resample_mutex); } if (flag & SFF_CNG) { switch_set_flag(write_frame, SFF_CNG); } if (ptime_mismatch || resample) { write_frame->timestamp = 0; } if ((status = perform_write(session, write_frame, flags, stream_id)) != SWITCH_STATUS_SUCCESS) { break; } } goto error; } } done: if (ptime_mismatch || resample) { write_frame->timestamp = 0; } if (do_write) { status = perform_write(session, write_frame, flags, stream_id); } error: switch_mutex_unlock(session->write_codec->mutex); switch_mutex_unlock(frame->codec->mutex); switch_mutex_unlock(session->codec_write_mutex); return status; }
SWITCH_DECLARE(switch_status_t) switch_core_session_send_dtmf_string(switch_core_session_t *session, const char *dtmf_string) { char *p; switch_dtmf_t dtmf = { 0, switch_core_default_dtmf_duration(0) }; int sent = 0, dur; char *string; int i, argc; char *argv[256]; int dur_total = 0; switch_assert(session != NULL); if (switch_channel_down(session->channel)) { return SWITCH_STATUS_FALSE; } if (zstr(dtmf_string)) { return SWITCH_STATUS_FALSE; } if (strlen(dtmf_string) > 99) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Attempt to send very large dtmf string ignored!\n"); return SWITCH_STATUS_FALSE; } string = switch_core_session_strdup(session, dtmf_string); argc = switch_separate_string(string, '+', argv, (sizeof(argv) / sizeof(argv[0]))); if (argc) { switch_channel_pre_answer(session->channel); } for (i = 0; i < argc; i++) { dtmf.duration = switch_core_default_dtmf_duration(0); dur = switch_core_default_dtmf_duration(0) / 8; if ((p = strchr(argv[i], '@'))) { *p++ = '\0'; if ((dur = atoi(p)) > 50) { dtmf.duration = dur * 8; } } if (dtmf.duration > switch_core_max_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s EXCESSIVE DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), dtmf.digit, dtmf.duration); dtmf.duration = switch_core_max_dtmf_duration(0); } else if (dtmf.duration < switch_core_min_dtmf_duration(0)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s SHORT DTMF DIGIT [%c] LEN [%d]\n", switch_channel_get_name(session->channel), dtmf.digit, dtmf.duration); dtmf.duration = switch_core_min_dtmf_duration(0); } else if (!dtmf.duration) { dtmf.duration = switch_core_default_dtmf_duration(0); } for (p = argv[i]; p && *p; p++) { if (is_dtmf(*p)) { dtmf.digit = *p; if (switch_core_session_send_dtmf(session, &dtmf) == SWITCH_STATUS_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s send dtmf\ndigit=%c ms=%u samples=%u\n", switch_channel_get_name(session->channel), dtmf.digit, dur, dtmf.duration); sent++; dur_total += dtmf.duration + 2000; /* account for 250ms pause */ } } } if (dur_total) { char tmp[32] = ""; switch_snprintf(tmp, sizeof(tmp), "%d", dur_total / 8); switch_channel_set_variable(session->channel, "last_dtmf_duration", tmp); } } return sent ? SWITCH_STATUS_SUCCESS : SWITCH_STATUS_FALSE; }
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_remove_all_function(switch_core_session_t *session, const char *function) { switch_media_bug_t *bp; switch_status_t status = SWITCH_STATUS_FALSE; if (session->bugs) { switch_thread_rwlock_wrlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if ((bp->thread_id && bp->thread_id != switch_thread_self()) || switch_test_flag(bp, SMBF_LOCK)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "BUG is thread locked skipping.\n"); continue; } if (!zstr(function) && strcmp(bp->function, function)) { continue; } if (bp->callback) { bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_CLOSE); } switch_core_media_bug_destroy(bp); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Removing BUG from %s\n", switch_channel_get_name(session->channel)); } session->bugs = NULL; switch_thread_rwlock_unlock(session->bug_rwlock); status = SWITCH_STATUS_SUCCESS; } if (switch_core_codec_ready(&session->bug_codec)) { switch_core_codec_destroy(&session->bug_codec); } return status; }
static void switch_core_standard_on_park(switch_core_session_t *session) { switch_assert(session != NULL); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard PARK\n", switch_channel_get_name(session->channel)); switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE); switch_ivr_park(session, NULL); }
static void switch_core_standard_on_destroy(switch_core_session_t *session) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard DESTROY\n", switch_channel_get_name(session->channel)); }
SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags, int stream_id) { switch_io_event_hook_read_frame_t *ptr; switch_status_t status = SWITCH_STATUS_FALSE; int need_codec, perfect, do_bugs = 0, do_resample = 0, is_cng = 0; switch_codec_implementation_t codec_impl; unsigned int flag = 0; switch_assert(session != NULL); if (switch_mutex_trylock(session->codec_read_mutex) == SWITCH_STATUS_SUCCESS) { switch_mutex_unlock(session->codec_read_mutex); } else { switch_cond_next(); *frame = &runtime.dummy_cng_frame; return SWITCH_STATUS_SUCCESS; } if (!(session->read_codec && session->read_codec->implementation && switch_core_codec_ready(session->read_codec))) { if (switch_channel_test_flag(session->channel, CF_PROXY_MODE) || switch_channel_get_state(session->channel) == CS_HIBERNATE) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "%s reading on a session with no media!\n", switch_channel_get_name(session->channel)); switch_cond_next(); *frame = &runtime.dummy_cng_frame; return SWITCH_STATUS_SUCCESS; } switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no read codec.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION); return SWITCH_STATUS_FALSE; } switch_mutex_lock(session->codec_read_mutex); if (!switch_core_codec_ready(session->read_codec)) { switch_mutex_unlock(session->codec_read_mutex); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no read codec.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION); *frame = &runtime.dummy_cng_frame; return SWITCH_STATUS_FALSE; } switch_mutex_lock(session->read_codec->mutex); top: if (session->dmachine && !switch_channel_test_flag(session->channel, CF_BROADCAST)) { switch_ivr_dmachine_ping(session->dmachine, NULL); } if (switch_channel_down(session->channel) || !switch_core_codec_ready(session->read_codec)) { *frame = NULL; status = SWITCH_STATUS_FALSE; goto even_more_done; } status = SWITCH_STATUS_FALSE; need_codec = perfect = 0; *frame = NULL; if (session->read_codec && !session->track_id && session->track_duration) { if (session->read_frame_count == 0) { switch_event_t *event; session->read_frame_count = (session->read_impl.actual_samples_per_second / session->read_impl.samples_per_packet) * session->track_duration; switch_event_create(&event, SWITCH_EVENT_SESSION_HEARTBEAT); switch_channel_event_set_data(session->channel, event); switch_event_fire(&event); } else { session->read_frame_count--; } } if (switch_channel_test_flag(session->channel, CF_HOLD)) { switch_yield(session->read_impl.microseconds_per_packet); status = SWITCH_STATUS_BREAK; goto even_more_done; } if (session->endpoint_interface->io_routines->read_frame) { switch_mutex_unlock(session->read_codec->mutex); switch_mutex_unlock(session->codec_read_mutex); if ((status = session->endpoint_interface->io_routines->read_frame(session, frame, flags, stream_id)) == SWITCH_STATUS_SUCCESS) { for (ptr = session->event_hooks.read_frame; ptr; ptr = ptr->next) { if ((status = ptr->read_frame(session, frame, flags, stream_id)) != SWITCH_STATUS_SUCCESS) { break; } } } if (!SWITCH_READ_ACCEPTABLE(status) || !session->read_codec || !switch_core_codec_ready(session->read_codec)) { *frame = NULL; return SWITCH_STATUS_FALSE; } switch_mutex_lock(session->codec_read_mutex); if (!switch_core_codec_ready(session->read_codec)) { switch_mutex_unlock(session->codec_read_mutex); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no read codec.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION); *frame = &runtime.dummy_cng_frame; return SWITCH_STATUS_FALSE; } switch_mutex_lock(session->read_codec->mutex); if (!switch_core_codec_ready(session->read_codec)) { *frame = NULL; status = SWITCH_STATUS_FALSE; goto even_more_done; } } if (status != SWITCH_STATUS_SUCCESS) { goto done; } if (!(*frame)) { goto done; } switch_assert(*frame != NULL); if (switch_test_flag(*frame, SFF_PROXY_PACKET)) { /* Fast PASS! */ status = SWITCH_STATUS_SUCCESS; goto done; } if (switch_test_flag(*frame, SFF_CNG)) { status = SWITCH_STATUS_SUCCESS; if (!session->bugs && !session->plc) { goto done; } is_cng = 1; } switch_assert((*frame)->codec != NULL); if (!(session->read_codec && (*frame)->codec && (*frame)->codec->implementation) && switch_core_codec_ready((*frame)->codec)) { status = SWITCH_STATUS_FALSE; goto done; } codec_impl = *(*frame)->codec->implementation; if (session->read_codec->implementation->impl_id != codec_impl.impl_id) { need_codec = TRUE; } if (codec_impl.actual_samples_per_second != session->read_impl.actual_samples_per_second) { do_resample = 1; } if (session->bugs && !need_codec) { do_bugs = 1; need_codec = 1; } if (switch_test_flag(session, SSF_READ_TRANSCODE) && !need_codec && switch_core_codec_ready(session->read_codec)) { switch_core_session_t *other_session; const char *uuid = switch_channel_get_variable(switch_core_session_get_channel(session), SWITCH_SIGNAL_BOND_VARIABLE); switch_clear_flag(session, SSF_READ_TRANSCODE); if (uuid && (other_session = switch_core_session_locate(uuid))) { switch_set_flag(other_session, SSF_READ_CODEC_RESET); switch_set_flag(other_session, SSF_READ_CODEC_RESET); switch_set_flag(other_session, SSF_WRITE_CODEC_RESET); switch_core_session_rwunlock(other_session); } } if (switch_test_flag(session, SSF_READ_CODEC_RESET)) { switch_core_codec_reset(session->read_codec); switch_clear_flag(session, SSF_READ_CODEC_RESET); } if (status == SWITCH_STATUS_SUCCESS && need_codec) { switch_frame_t *enc_frame, *read_frame = *frame; switch_set_flag(session, SSF_READ_TRANSCODE); if (!switch_test_flag(session, SSF_WARN_TRANSCODE)) { switch_core_session_message_t msg = { 0 }; msg.message_id = SWITCH_MESSAGE_INDICATE_TRANSCODING_NECESSARY; switch_core_session_receive_message(session, &msg); switch_set_flag(session, SSF_WARN_TRANSCODE); } if (read_frame->codec || is_cng) { session->raw_read_frame.datalen = session->raw_read_frame.buflen; if (is_cng) { if (session->plc) { plc_fillin(session->plc, session->raw_read_frame.data, read_frame->codec->implementation->decoded_bytes_per_packet / 2); is_cng = 0; flag &= !SFF_CNG; } else { memset(session->raw_read_frame.data, 255, read_frame->codec->implementation->decoded_bytes_per_packet); } session->raw_read_frame.timestamp = 0; session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet; session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t); read_frame = &session->raw_read_frame; status = SWITCH_STATUS_SUCCESS; } else { switch_codec_t *use_codec = read_frame->codec; if (do_bugs) { switch_thread_rwlock_wrlock(session->bug_rwlock); if (!session->bugs) { do_bugs = 0; switch_thread_rwlock_unlock(session->bug_rwlock); goto done; } if (!switch_core_codec_ready(&session->bug_codec)) { switch_core_codec_copy(read_frame->codec, &session->bug_codec, NULL); } use_codec = &session->bug_codec; switch_thread_rwlock_unlock(session->bug_rwlock); switch_thread_rwlock_wrlock(session->bug_rwlock); if (!session->bugs) { do_bugs = 0; } switch_thread_rwlock_unlock(session->bug_rwlock); if (!do_bugs) goto done; } if (switch_test_flag(read_frame, SFF_PLC)) { session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet; session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t); memset(session->raw_read_frame.data, 255, session->raw_read_frame.datalen); status = SWITCH_STATUS_SUCCESS; } else { status = switch_core_codec_decode(use_codec, session->read_codec, read_frame->data, read_frame->datalen, session->read_impl.actual_samples_per_second, session->raw_read_frame.data, &session->raw_read_frame.datalen, &session->raw_read_frame.rate, &read_frame->flags); } if (status == SWITCH_STATUS_SUCCESS) { if ((switch_channel_test_flag(session->channel, CF_JITTERBUFFER) || switch_channel_test_flag(session->channel, CF_CNG_PLC)) && !session->plc) { session->plc = plc_init(NULL); } if (session->plc) { if (switch_test_flag(read_frame, SFF_PLC)) { plc_fillin(session->plc, session->raw_read_frame.data, session->raw_read_frame.datalen / 2); switch_clear_flag(read_frame, SFF_PLC); } else { plc_rx(session->plc, session->raw_read_frame.data, session->raw_read_frame.datalen / 2); } } } } if (do_resample && ((status == SWITCH_STATUS_SUCCESS) || is_cng)) { status = SWITCH_STATUS_RESAMPLE; } switch (status) { case SWITCH_STATUS_RESAMPLE: if (!session->read_resampler) { switch_mutex_lock(session->resample_mutex); status = switch_resample_create(&session->read_resampler, read_frame->codec->implementation->actual_samples_per_second, session->read_impl.actual_samples_per_second, session->read_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1); switch_mutex_unlock(session->resample_mutex); if (status != SWITCH_STATUS_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Unable to allocate resampler\n"); status = SWITCH_STATUS_FALSE; goto done; } } case SWITCH_STATUS_SUCCESS: session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t); session->raw_read_frame.rate = read_frame->rate; if (read_frame->codec->implementation->samples_per_packet != session->read_impl.samples_per_packet) { session->raw_read_frame.timestamp = 0; } else { session->raw_read_frame.timestamp = read_frame->timestamp; } session->raw_read_frame.ssrc = read_frame->ssrc; session->raw_read_frame.seq = read_frame->seq; session->raw_read_frame.m = read_frame->m; session->raw_read_frame.payload = read_frame->payload; session->raw_read_frame.flags = 0; if (switch_test_flag(read_frame, SFF_PLC)) { session->raw_read_frame.flags |= SFF_PLC; } read_frame = &session->raw_read_frame; break; case SWITCH_STATUS_NOOP: if (session->read_resampler) { switch_mutex_lock(session->resample_mutex); switch_resample_destroy(&session->read_resampler); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating read resampler\n"); switch_mutex_unlock(session->resample_mutex); } status = SWITCH_STATUS_SUCCESS; break; case SWITCH_STATUS_BREAK: memset(session->raw_read_frame.data, 255, read_frame->codec->implementation->decoded_bytes_per_packet); session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet; session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t); session->raw_read_frame.timestamp = read_frame->timestamp; session->raw_read_frame.rate = read_frame->rate; session->raw_read_frame.ssrc = read_frame->ssrc; session->raw_read_frame.seq = read_frame->seq; session->raw_read_frame.m = read_frame->m; session->raw_read_frame.payload = read_frame->payload; session->raw_read_frame.flags = 0; if (switch_test_flag(read_frame, SFF_PLC)) { session->raw_read_frame.flags |= SFF_PLC; } read_frame = &session->raw_read_frame; status = SWITCH_STATUS_SUCCESS; break; case SWITCH_STATUS_NOT_INITALIZED: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n"); goto done; default: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s decoder error!\n", session->read_codec->codec_interface->interface_name); goto done; } } if (session->bugs) { switch_media_bug_t *bp; switch_bool_t ok = SWITCH_TRUE; int prune = 0; switch_thread_rwlock_rdlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) { continue; } if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) { continue; } if (switch_test_flag(bp, SMBF_PRUNE)) { prune++; continue; } if (bp->ready && switch_test_flag(bp, SMBF_READ_STREAM)) { switch_mutex_lock(bp->read_mutex); switch_buffer_write(bp->raw_read_buffer, read_frame->data, read_frame->datalen); if (bp->callback) { ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ); } switch_mutex_unlock(bp->read_mutex); } if (ok && switch_test_flag(bp, SMBF_READ_REPLACE)) { do_bugs = 0; if (bp->callback) { bp->read_replace_frame_in = read_frame; bp->read_replace_frame_out = read_frame; if ((ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ_REPLACE)) == SWITCH_TRUE) { read_frame = bp->read_replace_frame_out; } } } if ((bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL)) || ok == SWITCH_FALSE) { switch_set_flag(bp, SMBF_PRUNE); prune++; } } switch_thread_rwlock_unlock(session->bug_rwlock); if (prune) { switch_core_media_bug_prune(session); } } if (do_bugs) { goto done; } if (session->read_codec) { if (session->read_resampler) { short *data = read_frame->data; switch_mutex_lock(session->resample_mutex); switch_resample_process(session->read_resampler, data, (int) read_frame->datalen / 2); memcpy(data, session->read_resampler->to, session->read_resampler->to_len * 2); read_frame->samples = session->read_resampler->to_len; read_frame->datalen = session->read_resampler->to_len * 2; read_frame->rate = session->read_resampler->to_rate; switch_mutex_unlock(session->resample_mutex); } if (read_frame->datalen == session->read_impl.decoded_bytes_per_packet) { perfect = TRUE; } else { if (!session->raw_read_buffer) { switch_size_t bytes = session->read_impl.decoded_bytes_per_packet; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Engaging Read Buffer at %u bytes vs %u\n", (uint32_t) bytes, (uint32_t) (*frame)->datalen); switch_buffer_create_dynamic(&session->raw_read_buffer, bytes * SWITCH_BUFFER_BLOCK_FRAMES, bytes * SWITCH_BUFFER_START_FRAMES, 0); } if (!switch_buffer_write(session->raw_read_buffer, read_frame->data, read_frame->datalen)) { status = SWITCH_STATUS_MEMERR; goto done; } } if (perfect || switch_buffer_inuse(session->raw_read_buffer) >= session->read_impl.decoded_bytes_per_packet) { if (perfect) { enc_frame = read_frame; session->raw_read_frame.rate = read_frame->rate; } else { session->raw_read_frame.datalen = (uint32_t) switch_buffer_read(session->raw_read_buffer, session->raw_read_frame.data, session->read_impl.decoded_bytes_per_packet); session->raw_read_frame.rate = session->read_impl.actual_samples_per_second; enc_frame = &session->raw_read_frame; } session->enc_read_frame.datalen = session->enc_read_frame.buflen; switch_assert(session->read_codec != NULL); switch_assert(enc_frame != NULL); switch_assert(enc_frame->data != NULL); status = switch_core_codec_encode(session->read_codec, enc_frame->codec, enc_frame->data, enc_frame->datalen, session->read_impl.actual_samples_per_second, session->enc_read_frame.data, &session->enc_read_frame.datalen, &session->enc_read_frame.rate, &flag); switch (status) { case SWITCH_STATUS_RESAMPLE: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Fixme 1\n"); case SWITCH_STATUS_SUCCESS: session->enc_read_frame.samples = session->read_impl.decoded_bytes_per_packet / sizeof(int16_t); if (perfect) { if (enc_frame->codec->implementation->samples_per_packet != session->read_impl.samples_per_packet) { session->enc_read_frame.timestamp = 0; } else { session->enc_read_frame.timestamp = read_frame->timestamp; } session->enc_read_frame.rate = read_frame->rate; session->enc_read_frame.ssrc = read_frame->ssrc; session->enc_read_frame.seq = read_frame->seq; session->enc_read_frame.m = read_frame->m; session->enc_read_frame.payload = session->read_impl.ianacode; } *frame = &session->enc_read_frame; break; case SWITCH_STATUS_NOOP: session->raw_read_frame.samples = enc_frame->codec->implementation->samples_per_packet; session->raw_read_frame.timestamp = read_frame->timestamp; session->raw_read_frame.payload = enc_frame->codec->implementation->ianacode; session->raw_read_frame.m = read_frame->m; session->raw_read_frame.ssrc = read_frame->ssrc; session->raw_read_frame.seq = read_frame->seq; *frame = enc_frame; status = SWITCH_STATUS_SUCCESS; break; case SWITCH_STATUS_NOT_INITALIZED: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n"); *frame = NULL; status = SWITCH_STATUS_GENERR; break; default: switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error!\n", session->read_codec->codec_interface->interface_name); *frame = NULL; status = SWITCH_STATUS_GENERR; break; } } else { goto top; } } } done: if (!(*frame)) { status = SWITCH_STATUS_FALSE; } else { if (flag & SFF_CNG) { switch_set_flag((*frame), SFF_CNG); } if (session->bugs) { switch_media_bug_t *bp; switch_bool_t ok = SWITCH_TRUE; int prune = 0; switch_thread_rwlock_rdlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) { continue; } if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) { continue; } if (switch_test_flag(bp, SMBF_PRUNE)) { prune++; continue; } if (bp->ready && switch_test_flag(bp, SMBF_READ_PING)) { switch_mutex_lock(bp->read_mutex); if (bp->callback) { if (bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ_PING) == SWITCH_FALSE || (bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL))) { ok = SWITCH_FALSE; } } switch_mutex_unlock(bp->read_mutex); } if (ok == SWITCH_FALSE) { switch_set_flag(bp, SMBF_PRUNE); prune++; } } switch_thread_rwlock_unlock(session->bug_rwlock); if (prune) { switch_core_media_bug_prune(session); } } } even_more_done: if (!*frame || !(*frame)->codec || !(*frame)->codec->implementation || !switch_core_codec_ready((*frame)->codec)) { *frame = &runtime.dummy_cng_frame; } switch_mutex_unlock(session->read_codec->mutex); switch_mutex_unlock(session->codec_read_mutex); return status; }
static void switch_core_standard_on_exchange_media(switch_core_session_t *session) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard EXCHANGE_MEDIA\n", switch_channel_get_name(session->channel)); }
static void switch_core_standard_on_reporting(switch_core_session_t *session) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard REPORTING, cause: %s\n", switch_channel_get_name(session->channel), switch_channel_cause2str(switch_channel_get_cause(session->channel))); }
SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session) { switch_channel_state_t state = CS_NEW, midstate = CS_DESTROY, endstate; const switch_endpoint_interface_t *endpoint_interface; const switch_state_handler_table_t *driver_state_handler = NULL; const switch_state_handler_table_t *application_state_handler = NULL; int silly = 0; uint32_t new_loops = 500; /* Life of the channel. you have channel and pool in your session everywhere you go you use the session to malloc with switch_core_session_alloc(session, <size>) The endpoint module gets the first crack at implementing the state if it wants to, it can cancel the default behavior by returning SWITCH_STATUS_FALSE Next comes the channel's event handler table that can be set by an application which also can veto the next behavior in line by returning SWITCH_STATUS_FALSE Finally the default state behavior is called. */ switch_assert(session != NULL); switch_set_flag(session, SSF_THREAD_RUNNING); endpoint_interface = session->endpoint_interface; switch_assert(endpoint_interface != NULL); driver_state_handler = endpoint_interface->state_handler; switch_assert(driver_state_handler != NULL); switch_mutex_lock(session->mutex); while ((state = switch_channel_get_state(session->channel)) != CS_DESTROY) { if (switch_channel_test_flag(session->channel, CF_BLOCK_STATE)) { switch_channel_wait_for_flag(session->channel, CF_BLOCK_STATE, SWITCH_FALSE, 0, NULL); if ((state = switch_channel_get_state(session->channel)) == CS_DESTROY) { break; } } midstate = state; if (state != switch_channel_get_running_state(session->channel) || state >= CS_HANGUP) { int index = 0; int proceed = 1; int global_proceed = 1; int do_extra_handlers = 1; switch_io_event_hook_state_run_t *ptr; switch_status_t rstatus = SWITCH_STATUS_SUCCESS; switch_channel_set_running_state(session->channel, state); switch_channel_clear_flag(session->channel, CF_TRANSFER); switch_channel_clear_flag(session->channel, CF_REDIRECT); if (session->endpoint_interface->io_routines->state_run) { rstatus = session->endpoint_interface->io_routines->state_run(session); } if (rstatus == SWITCH_STATUS_SUCCESS) { for (ptr = session->event_hooks.state_run; ptr; ptr = ptr->next) { if ((rstatus = ptr->state_run(session)) != SWITCH_STATUS_SUCCESS) { break; } } } switch (state) { case CS_NEW: /* Just created, Waiting for first instructions */ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "(%s) State NEW\n", switch_channel_get_name(session->channel)); break; case CS_DESTROY: goto done; case CS_REPORTING: /* Call Detail */ { switch_core_session_reporting_state(session); switch_channel_set_state(session->channel, CS_DESTROY); } goto done; case CS_HANGUP: /* Deactivate and end the thread */ { switch_core_session_hangup_state(session, SWITCH_TRUE); switch_channel_set_state(session->channel, CS_REPORTING); } break; case CS_INIT: /* Basic setup tasks */ { switch_event_t *event; STATE_MACRO(init, "INIT"); if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_CREATE) == SWITCH_STATUS_SUCCESS) { switch_channel_event_set_data(session->channel, event); switch_event_fire(&event); } if (switch_channel_direction(session->channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_ORIGINATE) == SWITCH_STATUS_SUCCESS) { switch_channel_event_set_data(session->channel, event); switch_event_fire(&event); } } } break; case CS_ROUTING: /* Look for a dialplan and find something to do */ STATE_MACRO(routing, "ROUTING"); break; case CS_RESET: /* Reset */ STATE_MACRO(reset, "RESET"); break; /* These other states are intended for prolonged durations so we do not signal lock for them */ case CS_EXECUTE: /* Execute an Operation */ STATE_MACRO(execute, "EXECUTE"); break; case CS_EXCHANGE_MEDIA: /* loop all data back to source */ STATE_MACRO(exchange_media, "EXCHANGE_MEDIA"); break; case CS_SOFT_EXECUTE: /* send/recieve data to/from another channel */ STATE_MACRO(soft_execute, "SOFT_EXECUTE"); break; case CS_PARK: /* wait in limbo */ STATE_MACRO(park, "PARK"); break; case CS_CONSUME_MEDIA: /* wait in limbo */ STATE_MACRO(consume_media, "CONSUME_MEDIA"); break; case CS_HIBERNATE: /* sleep */ STATE_MACRO(hibernate, "HIBERNATE"); break; case CS_NONE: abort(); break; } check_presence(session); if (midstate == CS_DESTROY) { break; } } endstate = switch_channel_get_state(session->channel); if (endstate == switch_channel_get_running_state(session->channel)) { if (endstate == CS_NEW) { switch_yield(20000); switch_ivr_parse_all_events(session); if (!--new_loops) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s %s Abandoned\n", session->uuid_str, switch_core_session_get_name(session)); switch_channel_set_flag(session->channel, CF_NO_CDR); switch_channel_hangup(session->channel, SWITCH_CAUSE_WRONG_CALL_STATE); } } else { switch_ivr_parse_all_events(session); switch_ivr_parse_all_events(session); if (switch_channel_get_state(session->channel) == switch_channel_get_running_state(session->channel)) { switch_channel_state_thread_lock(session->channel); switch_channel_set_flag(session->channel, CF_THREAD_SLEEPING); if (switch_channel_get_state(session->channel) == switch_channel_get_running_state(session->channel)) { switch_ivr_parse_all_events(session); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s session thread sleep state: %s!\n", switch_channel_get_name(session->channel), switch_channel_state_name(switch_channel_get_running_state(session->channel))); switch_thread_cond_wait(session->cond, session->mutex); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s session thread wake state: %s!\n", switch_channel_get_name(session->channel), switch_channel_state_name(switch_channel_get_running_state(session->channel))); } switch_channel_clear_flag(session->channel, CF_THREAD_SLEEPING); switch_channel_state_thread_unlock(session->channel); } switch_ivr_parse_all_events(session); switch_ivr_parse_all_events(session); } } } done: switch_mutex_unlock(session->mutex); switch_clear_flag(session, SSF_THREAD_RUNNING); }
static void switch_core_standard_on_hibernate(switch_core_session_t *session) { switch_assert(session != NULL); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard HIBERNATE\n", switch_channel_get_name(session->channel)); }
static void switch_core_standard_on_consume_media(switch_core_session_t *session) { switch_assert(session != NULL); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard CONSUME_MEDIA\n", switch_channel_get_name(session->channel)); }
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_read(switch_media_bug_t *bug, switch_frame_t *frame, switch_bool_t fill) { switch_size_t bytes = 0, datalen = 0; int16_t *dp, *fp; uint32_t x; size_t rlen = 0; size_t wlen = 0; uint32_t blen; switch_codec_implementation_t read_impl = { 0 }; int16_t *tp; switch_size_t do_read = 0, do_write = 0; int fill_read = 0, fill_write = 0; switch_core_session_get_read_impl(bug->session, &read_impl); bytes = read_impl.decoded_bytes_per_packet; if (frame->buflen < bytes) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(bug)), SWITCH_LOG_ERROR, "%s frame buffer too small!\n", switch_channel_get_name(bug->session->channel)); return SWITCH_STATUS_FALSE; } if ((!bug->raw_read_buffer && (!bug->raw_write_buffer || !switch_test_flag(bug, SMBF_WRITE_STREAM)))) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(bug)), SWITCH_LOG_ERROR, "%s Buffer Error (raw_read_buffer=%p, raw_write_buffer=%p, read=%s, write=%s)\n", switch_channel_get_name(bug->session->channel), (void *)bug->raw_read_buffer, (void *)bug->raw_write_buffer, switch_test_flag(bug, SMBF_READ_STREAM) ? "yes" : "no", switch_test_flag(bug, SMBF_WRITE_STREAM) ? "yes" : "no"); return SWITCH_STATUS_FALSE; } frame->flags = 0; frame->datalen = 0; if (switch_test_flag(bug, SMBF_READ_STREAM)) { switch_mutex_lock(bug->read_mutex); do_read = switch_buffer_inuse(bug->raw_read_buffer); switch_mutex_unlock(bug->read_mutex); } if (switch_test_flag(bug, SMBF_WRITE_STREAM)) { switch_mutex_lock(bug->write_mutex); do_write = switch_buffer_inuse(bug->raw_write_buffer); switch_mutex_unlock(bug->write_mutex); } if (bug->record_frame_size && bug->record_pre_buffer_max && (do_read || do_write) && bug->record_pre_buffer_count < bug->record_pre_buffer_max) { bug->record_pre_buffer_count++; return SWITCH_STATUS_FALSE; } if (!bug->record_frame_size) { switch_size_t frame_size; switch_codec_implementation_t read_impl = { 0 }; //switch_codec_implementation_t other_read_impl = { 0 }; //switch_core_session_t *other_session; switch_core_session_get_read_impl(bug->session, &read_impl); frame_size = read_impl.decoded_bytes_per_packet; bug->record_frame_size = frame_size; #if 0 if (do_read && do_write) { if (switch_core_session_get_partner(bug->session, &other_session) == SWITCH_STATUS_SUCCESS) { switch_core_session_get_read_impl(other_session, &other_read_impl); switch_core_session_rwunlock(other_session); if (read_impl.actual_samples_per_second == other_read_impl.actual_samples_per_second) { if (read_impl.decoded_bytes_per_packet < other_read_impl.decoded_bytes_per_packet) { frame_size = read_impl.decoded_bytes_per_packet; } } else { if (read_impl.decoded_bytes_per_packet > other_read_impl.decoded_bytes_per_packet) { frame_size = read_impl.decoded_bytes_per_packet; } } } bug->record_frame_size = frame_size; } #endif } if (bug->record_frame_size) { if ((do_read && do_read < bug->record_frame_size) || (do_write && do_write < bug->record_frame_size)) { return SWITCH_STATUS_FALSE; } if (do_read && do_read > bug->record_frame_size) { do_read = bug->record_frame_size; } if (do_write && do_write > bug->record_frame_size) { do_write = bug->record_frame_size; } } fill_read = !do_read; fill_write = !do_write; if (fill_read && fill_write) { return SWITCH_STATUS_FALSE; } if (do_read && do_read > SWITCH_RECOMMENDED_BUFFER_SIZE) { do_read = 1280; } if (do_write && do_write > SWITCH_RECOMMENDED_BUFFER_SIZE) { do_write = 1280; } if (do_read) { switch_mutex_lock(bug->read_mutex); frame->datalen = (uint32_t) switch_buffer_read(bug->raw_read_buffer, frame->data, do_read); if (frame->datalen != do_read) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(bug)), SWITCH_LOG_ERROR, "Framing Error Reading!\n"); switch_core_media_bug_flush(bug); switch_mutex_unlock(bug->read_mutex); return SWITCH_STATUS_FALSE; } switch_mutex_unlock(bug->read_mutex); } else if (fill_read) { frame->datalen = bytes; memset(frame->data, 255, frame->datalen); } if (do_write) { switch_assert(bug->raw_write_buffer); switch_mutex_lock(bug->write_mutex); datalen = (uint32_t) switch_buffer_read(bug->raw_write_buffer, bug->data, do_write); if (datalen != do_write) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(switch_core_media_bug_get_session(bug)), SWITCH_LOG_ERROR, "Framing Error Writing!\n"); switch_core_media_bug_flush(bug); switch_mutex_unlock(bug->write_mutex); return SWITCH_STATUS_FALSE; } switch_mutex_unlock(bug->write_mutex); } else if (fill_write) { datalen = bytes; memset(bug->data, 255, datalen); } tp = bug->tmp; dp = (int16_t *) bug->data; fp = (int16_t *) frame->data; rlen = frame->datalen / 2; wlen = datalen / 2; blen = bytes / 2; if (switch_test_flag(bug, SMBF_STEREO)) { int16_t *left, *right; size_t left_len, right_len; if (switch_test_flag(bug, SMBF_STEREO_SWAP)) { left = dp; /* write stream */ left_len = wlen; right = fp; /* read stream */ right_len = rlen; } else { left = fp; /* read stream */ left_len = rlen; right = dp; /* write stream */ right_len = wlen; } for (x = 0; x < blen; x++) { if (x < left_len) { *(tp++) = *(left + x); } else { *(tp++) = 0; } if (x < right_len) { *(tp++) = *(right + x); } else { *(tp++) = 0; } } memcpy(frame->data, bug->tmp, bytes * 2); } else { for (x = 0; x < blen; x++) { int32_t w = 0, r = 0, z = 0; if (x < rlen) { r = (int32_t) * (fp + x); } if (x < wlen) { w = (int32_t) * (dp + x); } z = w + r; if (z > SWITCH_SMAX || z < SWITCH_SMIN) { if (r) z += (r/2); if (w) z += (w/2); } switch_normalize_to_16bit(z); *(fp + x) = (int16_t) z; } } frame->datalen = bytes; frame->samples = bytes / sizeof(int16_t); frame->rate = read_impl.actual_samples_per_second; frame->codec = NULL; if (fill_read && fill_write) { return SWITCH_STATUS_BREAK; } if (fill_read || fill_write) { return SWITCH_STATUS_BREAK; } memcpy(bug->session->recur_buffer, frame->data, frame->datalen); bug->session->recur_buffer_len = frame->datalen; return SWITCH_STATUS_SUCCESS; }
static void switch_core_standard_on_execute(switch_core_session_t *session) { switch_caller_extension_t *extension; const char *uuid; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard EXECUTE\n", switch_channel_get_name(session->channel)); switch_channel_set_variable(session->channel, "call_uuid", switch_core_session_get_uuid(session)); if (switch_channel_get_variable(session->channel, "recovered") && !switch_channel_test_flag(session->channel, CF_RECOVERED)) { switch_channel_set_flag(session->channel, CF_RECOVERED); } top: switch_channel_clear_flag(session->channel, CF_RESET); if ((extension = switch_channel_get_caller_extension(session->channel)) == 0) { switch_channel_hangup(session->channel, SWITCH_CAUSE_NORMAL_CLEARING); return; } while (switch_channel_get_state(session->channel) == CS_EXECUTE && extension->current_application) { switch_caller_application_t *current_application = extension->current_application; extension->current_application = extension->current_application->next; if (switch_core_session_execute_application(session, current_application->application_name, current_application->application_data) != SWITCH_STATUS_SUCCESS) { return; } if (switch_channel_test_flag(session->channel, CF_RESET)) { goto top; } } if (switch_channel_ready(session->channel) && switch_channel_get_state(session->channel) == CS_EXECUTE && switch_channel_test_flag(session->channel, CF_CONFIRM_BLIND_TRANSFER) && (uuid = switch_channel_get_variable(session->channel, "blind_transfer_uuid"))) { switch_core_session_t *other_session; if ((other_session = switch_core_session_locate(uuid))) { switch_core_session_message_t msg = { 0 }; msg.message_id = SWITCH_MESSAGE_INDICATE_BLIND_TRANSFER_RESPONSE; msg.from = __FILE__; msg.numeric_arg = 0; switch_core_session_receive_message(other_session, &msg); switch_core_session_rwunlock(other_session); switch_channel_set_variable(session->channel, "park_timeout", "10:blind_transfer"); switch_channel_set_state(session->channel, CS_PARK); switch_channel_clear_flag(session->channel, CF_CONFIRM_BLIND_TRANSFER); } } if (switch_channel_ready(session->channel) && switch_channel_get_state(session->channel) == CS_EXECUTE) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "%s has executed the last dialplan instruction, hanging up.\n", switch_channel_get_name(session->channel)); switch_channel_hangup(session->channel, SWITCH_CAUSE_NORMAL_CLEARING); } }
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_add(switch_core_session_t *session, const char *function, const char *target, switch_media_bug_callback_t callback, void *user_data, time_t stop_time, switch_media_bug_flag_t flags, switch_media_bug_t **new_bug) { switch_media_bug_t *bug, *bp; switch_size_t bytes; switch_event_t *event; int tap_only = 1, punt = 0; const char *p; if (!zstr(function)) { if ((flags & SMBF_ONE_ONLY)) { switch_thread_rwlock_wrlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if (!zstr(bp->function) && !strcasecmp(function, bp->function)) { punt = 1; break; } } switch_thread_rwlock_unlock(session->bug_rwlock); } } if (punt) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Only one bug of this type allowed!\n"); } if (!switch_channel_media_ready(session->channel)) { if (switch_channel_pre_answer(session->channel) != SWITCH_STATUS_SUCCESS) { return SWITCH_STATUS_FALSE; } } *new_bug = NULL; if ((p = switch_channel_get_variable(session->channel, "media_bug_answer_req")) && switch_true(p)) { flags |= SMBF_ANSWER_REQ; } #if 0 if (flags & SMBF_WRITE_REPLACE) { switch_thread_rwlock_wrlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if (switch_test_flag(bp, SMBF_WRITE_REPLACE)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Only one bug of this type allowed!\n"); switch_thread_rwlock_unlock(session->bug_rwlock); return SWITCH_STATUS_GENERR; } } switch_thread_rwlock_unlock(session->bug_rwlock); } if (flags & SMBF_READ_REPLACE) { switch_thread_rwlock_wrlock(session->bug_rwlock); for (bp = session->bugs; bp; bp = bp->next) { if (switch_test_flag(bp, SMBF_READ_REPLACE)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Only one bug of this type allowed!\n"); switch_thread_rwlock_unlock(session->bug_rwlock); return SWITCH_STATUS_GENERR; } } switch_thread_rwlock_unlock(session->bug_rwlock); } #endif if (!(bug = switch_core_session_alloc(session, sizeof(*bug)))) { return SWITCH_STATUS_MEMERR; } bug->callback = callback; bug->user_data = user_data; bug->session = session; bug->flags = flags; bug->function = "N/A"; bug->target = "N/A"; switch_core_session_get_read_impl(session, &bug->read_impl); switch_core_session_get_write_impl(session, &bug->write_impl); if (function) { bug->function = switch_core_session_strdup(session, function); } if (target) { bug->target = switch_core_session_strdup(session, target); } bug->stop_time = stop_time; bytes = bug->read_impl.decoded_bytes_per_packet; if (!bug->flags) { bug->flags = (SMBF_READ_STREAM | SMBF_WRITE_STREAM); } if (switch_test_flag(bug, SMBF_READ_STREAM) || switch_test_flag(bug, SMBF_READ_PING)) { switch_buffer_create_dynamic(&bug->raw_read_buffer, bytes * SWITCH_BUFFER_BLOCK_FRAMES, bytes * SWITCH_BUFFER_START_FRAMES, MAX_BUG_BUFFER); switch_mutex_init(&bug->read_mutex, SWITCH_MUTEX_NESTED, session->pool); } bytes = bug->write_impl.decoded_bytes_per_packet; if (switch_test_flag(bug, SMBF_WRITE_STREAM)) { switch_buffer_create_dynamic(&bug->raw_write_buffer, bytes * SWITCH_BUFFER_BLOCK_FRAMES, bytes * SWITCH_BUFFER_START_FRAMES, MAX_BUG_BUFFER); switch_mutex_init(&bug->write_mutex, SWITCH_MUTEX_NESTED, session->pool); } if ((bug->flags & SMBF_THREAD_LOCK)) { bug->thread_id = switch_thread_self(); } if (bug->callback) { switch_bool_t result = bug->callback(bug, bug->user_data, SWITCH_ABC_TYPE_INIT); if (result == SWITCH_FALSE) { switch_core_media_bug_destroy(bug); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Error attaching BUG to %s\n", switch_channel_get_name(session->channel)); return SWITCH_STATUS_GENERR; } } switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Attaching BUG to %s\n", switch_channel_get_name(session->channel)); bug->ready = 1; switch_thread_rwlock_wrlock(session->bug_rwlock); bug->next = session->bugs; session->bugs = bug; for(bp = session->bugs; bp; bp = bp->next) { if (bp->ready && !switch_test_flag(bp, SMBF_TAP_NATIVE_READ) && !switch_test_flag(bp, SMBF_TAP_NATIVE_WRITE)) { tap_only = 0; } } switch_thread_rwlock_unlock(session->bug_rwlock); *new_bug = bug; if (tap_only) { switch_set_flag(session, SSF_MEDIA_BUG_TAP_ONLY); } else { switch_clear_flag(session, SSF_MEDIA_BUG_TAP_ONLY); } if (switch_event_create(&event, SWITCH_EVENT_MEDIA_BUG_START) == SWITCH_STATUS_SUCCESS) { switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Media-Bug-Function", "%s", bug->function); switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Media-Bug-Target", "%s", bug->target); switch_channel_event_set_data(session->channel, event); switch_event_fire(&event); } return SWITCH_STATUS_SUCCESS; }
static void switch_core_standard_on_routing(switch_core_session_t *session) { switch_dialplan_interface_t *dialplan_interface = NULL; switch_caller_profile_t *caller_profile; switch_caller_extension_t *extension = NULL; char *expanded = NULL; char *dpstr = NULL; switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard ROUTING\n", switch_channel_get_name(session->channel)); switch_channel_set_variable(session->channel, "call_uuid", switch_core_session_get_uuid(session)); if ((switch_channel_test_flag(session->channel, CF_ANSWERED) || switch_channel_test_flag(session->channel, CF_EARLY_MEDIA) || switch_channel_test_flag(session->channel, CF_SIGNAL_BRIDGE_TTL)) && switch_channel_test_flag(session->channel, CF_PROXY_MODE)) { switch_ivr_media(session->uuid_str, SMF_NONE); } if ((caller_profile = switch_channel_get_caller_profile(session->channel)) == 0) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Can't get profile!\n"); switch_channel_hangup(session->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER); return; } else { char *dp[25]; int argc, x, count = 0; if ((extension = switch_channel_get_queued_extension(session->channel))) { switch_channel_set_caller_extension(session->channel, extension); switch_channel_set_state(session->channel, CS_EXECUTE); goto end; } if (!zstr(caller_profile->dialplan)) { if ((dpstr = switch_core_session_strdup(session, caller_profile->dialplan))) { expanded = switch_channel_expand_variables(session->channel, dpstr); argc = switch_separate_string(expanded, ',', dp, (sizeof(dp) / sizeof(dp[0]))); for (x = 0; x < argc; x++) { char *dpname = dp[x]; char *dparg = NULL; if (dpname) { if ((dparg = strchr(dpname, ':'))) { *dparg++ = '\0'; } } else { continue; } if (!(dialplan_interface = switch_loadable_module_get_dialplan_interface(dpname))) { continue; } count++; extension = dialplan_interface->hunt_function(session, dparg, NULL); UNPROTECT_INTERFACE(dialplan_interface); if (extension) { switch_channel_set_caller_extension(session->channel, extension); switch_channel_set_state(session->channel, CS_EXECUTE); goto end; } } } } if (!count) { if (switch_channel_direction(session->channel) == SWITCH_CALL_DIRECTION_OUTBOUND) { if (switch_channel_test_flag(session->channel, CF_ANSWERED)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "No Dialplan on answered channel, changing state to HANGUP\n"); switch_channel_hangup(session->channel, SWITCH_CAUSE_NO_ROUTE_DESTINATION); } else { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "No Dialplan, changing state to CONSUME_MEDIA\n"); switch_channel_set_state(session->channel, CS_CONSUME_MEDIA); } goto end; } } } if (!extension) { if (switch_ivr_blind_transfer_ack(session, SWITCH_FALSE) != SWITCH_STATUS_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "No Route, Aborting\n"); switch_channel_hangup(session->channel, SWITCH_CAUSE_NO_ROUTE_DESTINATION); } } end: if (expanded && dpstr && expanded != dpstr) { free(expanded); } }
SWITCH_DECLARE(void) switch_core_session_hangup_state(switch_core_session_t *session, switch_bool_t force) { switch_call_cause_t cause = switch_channel_get_cause(session->channel); switch_call_cause_t cause_q850 = switch_channel_get_cause_q850(session->channel); int proceed = 1; int global_proceed = 1; int do_extra_handlers = 1; int silly = 0; int index = 0; switch_channel_state_t state = switch_channel_get_state(session->channel), midstate = state; const switch_endpoint_interface_t *endpoint_interface; const switch_state_handler_table_t *driver_state_handler = NULL; const switch_state_handler_table_t *application_state_handler = NULL; const char *hook_var; int use_session = 0; if (!force) { if (!switch_channel_test_flag(session->channel, CF_EARLY_HANGUP) && !switch_test_flag((&runtime), SCF_EARLY_HANGUP)) { return; } if (switch_thread_self() != session->thread_id) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG10, "%s thread mismatch skipping state handler.\n", switch_channel_get_name(session->channel)); return; } } if (switch_test_flag(session, SSF_HANGUP)) { switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG10, "%s handler already called, skipping state handler.\n", switch_channel_get_name(session->channel)); return; } endpoint_interface = session->endpoint_interface; switch_assert(endpoint_interface != NULL); driver_state_handler = endpoint_interface->state_handler; switch_assert(driver_state_handler != NULL); switch_channel_set_hangup_time(session->channel); switch_core_media_bug_remove_all(session); switch_channel_stop_broadcast(session->channel); switch_channel_set_variable(session->channel, "hangup_cause", switch_channel_cause2str(cause)); switch_channel_set_variable_printf(session->channel, "hangup_cause_q850", "%d", cause_q850); //switch_channel_presence(session->channel, "unknown", switch_channel_cause2str(cause), NULL); switch_channel_set_timestamps(session->channel); STATE_MACRO(hangup, "HANGUP"); switch_core_media_set_stats(session); if ((hook_var = switch_channel_get_variable(session->channel, SWITCH_API_HANGUP_HOOK_VARIABLE))) { if (switch_true(switch_channel_get_variable(session->channel, SWITCH_SESSION_IN_HANGUP_HOOK_VARIABLE))) { use_session = 1; } api_hook(session, hook_var, use_session); } switch_channel_set_callstate(session->channel, CCS_HANGUP); switch_set_flag(session, SSF_HANGUP); }
static void switch_core_standard_on_soft_execute(switch_core_session_t *session) { switch_assert(session != NULL); switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard SOFT_EXECUTE\n", switch_channel_get_name(session->channel)); }