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Fixed numerous issues with T.38 support on mod_opal, now WORKS! 

Added tracing for error conditions in mod_spandsp
This commit is contained in:
Robert Jongbloed 2012-09-13 14:55:04 +10:00
parent 75c3e36009
commit babe1cdb89
3 changed files with 122 additions and 65 deletions
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15
src/mod/applications/mod_spandsp/mod_spandsp_fax.c
View File

@ -1590,21 +1590,29 @@ static switch_status_t t38_gateway_on_soft_execute(switch_core_session_t *sessio
while (switch_channel_ready(channel) && switch_channel_up(other_channel) && !switch_channel_test_app_flag_key("T38", channel, CF_APP_T38)) {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status) || pvt->done) {
if (pvt->done) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s Premature exit while negotiating\n", switch_channel_get_name(channel));
/* Our duty is over */
goto end_unlock;
}
if (!SWITCH_READ_ACCEPTABLE(status)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s Read failed, status=%u\n", switch_channel_get_name(channel), status);
goto end_unlock;
}
if (switch_test_flag(read_frame, SFF_CNG)) {
continue;
}
if (switch_core_session_write_frame(other_session, read_frame, SWITCH_IO_FLAG_NONE, 0) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s Write failed\n", switch_channel_get_name(channel));
goto end_unlock;
}
}
if (!(switch_channel_ready(channel) && switch_channel_up(other_channel))) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s Channel not ready\n", switch_channel_get_name(channel));
goto end_unlock;
}
@ -1645,6 +1653,7 @@ static switch_status_t t38_gateway_on_soft_execute(switch_core_session_t *sessio
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status) || pvt->done) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s Premature exit while negotiating\n", switch_channel_get_name(channel), status);
/* Our duty is over */
goto end_unlock;
}
@ -1654,7 +1663,9 @@ static switch_status_t t38_gateway_on_soft_execute(switch_core_session_t *sessio
}
if (switch_test_flag(read_frame, SFF_UDPTL_PACKET)) {
udptl_rx_packet(pvt->udptl_state, read_frame->packet, read_frame->packetlen);
if (udptl_rx_packet(pvt->udptl_state, read_frame->packet, read_frame->packetlen) < 0) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Error decoding UDPTL (%u bytes)\n", switch_channel_get_name(channel), read_frame->packetlen);
}
}
}

137
src/mod/endpoints/mod_opal/mod_opal.cpp
View File

@ -26,6 +26,9 @@
#include "mod_opal.h"
#include <opal/patch.h>
#include <rtp/rtp.h>
#if PTLIB_CHECK_VERSION(2,11,1)
#include <rtp/rtp_session.h>
#endif
#include <h323/h323pdu.h>
#include <h323/gkclient.h>
@ -57,6 +60,7 @@ static FSProcess *opal_process = NULL;
static PConstString const ModuleName("opal");
static char const ConfigFile[] = "opal.conf";
#define FS_PREFIX "fs"
static switch_io_routines_t opalfs_io_routines = {
@ -287,9 +291,9 @@ bool FSManager::Initialise(switch_loadable_module_interface_t *iface)
}
}
AddRouteEntry("h323:.* = local:<da>"); // config option for direct routing
AddRouteEntry("iax2:.* = local:<da>"); // config option for direct routing
AddRouteEntry("local:.* = h323:<da>"); // config option for direct routing
AddRouteEntry("h323:.* = "FS_PREFIX":<da>"); // config option for direct routing
AddRouteEntry("iax2:.* = "FS_PREFIX":<da>"); // config option for direct routing
AddRouteEntry(FS_PREFIX":.* = h323:<da>"); // config option for direct routing
// Make sure all known codecs are instantiated,
// these are ones we know how to translate into H.323 capabilities
@ -320,6 +324,10 @@ bool FSManager::Initialise(switch_loadable_module_interface_t *iface)
}
#endif // IMPLEMENT_MULTI_FAME_AUDIO
OpalMediaFormat t38 = OpalT38;
t38.SetOptionBoolean("UDPTL-Raw-Mode", true);
OpalMediaFormat::SetRegisteredMediaFormat(t38);
if (!m_gkAddress.IsEmpty()) {
if (m_h323ep->UseGatekeeper(m_gkAddress, m_gkIdentifer, m_gkInterface))
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Started gatekeeper: %s\n",
@ -453,7 +461,7 @@ static switch_call_cause_t create_outgoing_channel(switch_core_session_t *sess
params.cancel_cause = cancel_cause;
params.fail_cause = SWITCH_CAUSE_INVALID_NUMBER_FORMAT;
if (opal_process->GetManager().SetUpCall("local:", outbound_profile->destination_number, &params) != NULL)
if (opal_process->GetManager().SetUpCall(FS_PREFIX":", outbound_profile->destination_number, &params) != NULL)
return SWITCH_CAUSE_SUCCESS;
if (*new_session != NULL)
@ -465,7 +473,7 @@ static switch_call_cause_t create_outgoing_channel(switch_core_session_t *sess
///////////////////////////////////////////////////////////////////////
FSEndPoint::FSEndPoint(FSManager & manager)
: OpalLocalEndPoint(manager)
: OpalLocalEndPoint(manager, FS_PREFIX)
, m_manager(manager)
{
PTRACE(4, "mod_opal\tFSEndPoint created.");
@ -490,6 +498,7 @@ FSConnection::FSConnection(OpalCall & call,
, m_fsSession(NULL)
, m_fsChannel(NULL)
, m_flushAudio(false)
, m_udptl(false)
{
memset(&m_read_timer, 0, sizeof(m_read_timer));
memset(&m_read_codec, 0, sizeof(m_read_codec));
@ -497,6 +506,8 @@ FSConnection::FSConnection(OpalCall & call,
memset(&m_vid_read_timer, 0, sizeof(m_vid_read_timer));
memset(&m_vid_read_codec, 0, sizeof(m_vid_read_codec));
memset(&m_vid_write_codec, 0, sizeof(m_vid_write_codec));
memset(&m_dummy_frame, 0, sizeof(m_dummy_frame));
m_dummy_frame.flags = SFF_CNG;
if (params != NULL) {
// If we fail, this is the cause
@ -871,7 +882,7 @@ switch_status_t FSConnection::on_destroy()
{
PTRACE(3, "mod_opal\tFS on_destroy for connection " << *this);
m_fsChannel = NULL; // Will be destoyed by FS, so don't use it any more.
m_fsChannel = NULL; // Will be destroyed by FS, so don't use it any more.
switch_core_codec_destroy(&m_read_codec);
switch_core_codec_destroy(&m_write_codec);
@ -909,7 +920,7 @@ switch_status_t FSConnection::on_exchange_media()
switch_status_t FSConnection::on_soft_execute()
{
PTRACE(4, "mod_opal\tTransmit on connection " << *this);
PTRACE(4, "mod_opal\tSoft execute on connection " << *this);
return SWITCH_STATUS_SUCCESS;
}
@ -920,12 +931,15 @@ switch_status_t FSConnection::kill_channel(int sig)
case SWITCH_SIG_KILL:
m_rxAudioOpened.Signal();
m_txAudioOpened.Signal();
PTRACE(4, "mod_opal\tSignal channel KILL on connection " << *this);
PTRACE(4, "mod_opal\tSignal KILL received on connection " << *this);
break;
case SWITCH_SIG_XFER:
case SWITCH_SIG_BREAK:
PTRACE(4, "mod_opal\tSignal BREAK received on connection " << *this);
break;
default:
PTRACE(4, "mod_opal\tSignal channel " << sig << " on connection " << *this);
PTRACE(4, "mod_opal\tSignal " << sig << " received on connection " << *this);
break;
}
@ -1030,6 +1044,7 @@ switch_status_t FSConnection::receive_message(switch_core_session_message_t *msg
case SWITCH_MESSAGE_INDICATE_UDPTL_MODE:
PTRACE(2, "mod_opal\tSWITCH_MESSAGE_INDICATE_UDPTL_MODE");
m_udptl = true;
break;
#endif // HAVE_T38
@ -1092,16 +1107,24 @@ void FSConnection::SetT38OptionsFromMediaFormat(const OpalMediaFormat & mediaFor
void FSConnection::OnSwitchedT38(bool toT38, bool success)
{
if (!toT38 || !success || !IndicateSwitchedT38())
if (toT38 && success && IndicateSwitchedT38()) {
PTRACE(3, "mod_opal\tMode change request to T.38 succeeded");
}
else {
AbortT38();
}
}
void FSConnection::OnSwitchingT38(bool toT38)
{
if (!toT38 || !IndicateSwitchedT38())
if (toT38 && IndicateSwitchedT38()) {
PTRACE(3, "mod_opal\tMode change request to T.38 started");
}
else {
AbortT38();
}
}
void FSConnection::AbortT38()
@ -1117,13 +1140,17 @@ void FSConnection::AbortT38()
bool FSConnection::IndicateSwitchedT38()
{
PSafePtr<OpalConnection> other = GetOtherPartyConnection();
if (other == NULL)
if (other == NULL) {
PTRACE(3, "mod_opal\tCan't change to T.38, no other connection");
return false;
}
OpalMediaFormatList otherFormats = other->GetMediaFormats();
OpalMediaFormatList::const_iterator t38 = otherFormats.FindFormat(OpalT38);
if (t38 == otherFormats.end())
if (t38 == otherFormats.end()) {
PTRACE(3, "mod_opal\tCan't change to T.38, no remote capability");
return false;
}
SetT38OptionsFromMediaFormat(*t38, "t38_options");
@ -1132,7 +1159,6 @@ bool FSConnection::IndicateSwitchedT38()
switch_channel_execute_on(m_fsChannel, "opal_execute_on_t38");
switch_channel_api_on(m_fsChannel, "opal_api_on_t38");
PTRACE(3, "mod_opal\tMode change request to T.38 succeeded");
return true;
}
#endif // HAVE_T38
@ -1154,21 +1180,13 @@ switch_status_t FSConnection::state_change()
switch_status_t FSConnection::read_audio_frame(switch_frame_t **frame, switch_io_flag_t flags, int stream_id)
{
// Avoid all the channel closing and re-opening upsetting FS
if (ownerCall.IsSwitchingT38())
return SWITCH_STATUS_SUCCESS;
return read_frame((flags&SFF_UDPTL_PACKET) ? OpalMediaType::Fax() : OpalMediaType::Audio(), frame, flags);
return read_frame(m_udptl ? OpalMediaType::Fax() : OpalMediaType::Audio(), frame, flags);
}
switch_status_t FSConnection::write_audio_frame(switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
// Avoid all the channel closing and re-opening upsetting FS
if (ownerCall.IsSwitchingT38())
return SWITCH_STATUS_SUCCESS;
return write_frame((flags&SFF_UDPTL_PACKET) ? OpalMediaType::Fax() : OpalMediaType::Audio(), frame, flags);
return write_frame(m_udptl ? OpalMediaType::Fax() : OpalMediaType::Audio(), frame, flags);
}
@ -1186,17 +1204,26 @@ switch_status_t FSConnection::write_video_frame(switch_frame_t *frame, switch_io
switch_status_t FSConnection::read_frame(const OpalMediaType & mediaType, switch_frame_t **frame, switch_io_flag_t flags)
{
if (!ownerCall.IsSwitchingT38()) {
PSafePtr <FSMediaStream> stream = PSafePtrCast <OpalMediaStream, FSMediaStream>(GetMediaStream(mediaType, false));
if (stream != NULL)
return stream->read_frame(frame, flags);
PTRACE(2, "mod_opal\tNo stream for read of " << mediaType);
}
// Avoid all the channel closing and re-opening, especially with faxa switching, upsetting FS
*frame = &m_dummy_frame;
return SWITCH_STATUS_SUCCESS;
}
switch_status_t FSConnection::write_frame(const OpalMediaType & mediaType, const switch_frame_t *frame, switch_io_flag_t flags)
{
// Avoid all the channel closing and re-opening, especially with faxa switching, upsetting FS
if (ownerCall.IsSwitchingT38())
return SWITCH_STATUS_SUCCESS;
PSafePtr <FSMediaStream> stream = PSafePtrCast<OpalMediaStream, FSMediaStream>(GetMediaStream(mediaType, true));
if (stream != NULL)
return stream->write_frame(frame, flags);
@ -1211,6 +1238,8 @@ switch_status_t FSConnection::write_frame(const OpalMediaType & mediaType, const
FSMediaStream::FSMediaStream(FSConnection & conn, const OpalMediaFormat & mediaFormat, unsigned sessionID, bool isSource)
: OpalMediaStream(conn, mediaFormat, sessionID, isSource)
, m_connection(conn)
, m_switchTimer(NULL)
, m_switchCodec(NULL)
, m_readRTP(0, SWITCH_RECOMMENDED_BUFFER_SIZE)
{
memset(&m_readFrame, 0, sizeof(m_readFrame));
@ -1236,8 +1265,8 @@ PBoolean FSMediaStream::Open()
isAudio = false;
#if HAVE_T38
else if (mediaType == OpalMediaType::Fax()) {
m_readFrame.flags = SFF_UDPTL_PACKET;
return true;
m_readFrame.flags = SFF_UDPTL_PACKET|SFF_PROXY_PACKET;
return OpalMediaStream::Open();
}
#endif
else {
@ -1337,11 +1366,6 @@ int FSMediaStream::StartReadWrite(PatchPtr & mediaPatch) const
return -1;
}
if (!m_switchCodec) {
PTRACE(1, "mod_opal\tNo codec!");
return -1;
}
if (!m_connection.IsChannelReady()) {
PTRACE(1, "mod_opal\tChannel not ready!");
return -1;
@ -1362,6 +1386,9 @@ int FSMediaStream::StartReadWrite(PatchPtr & mediaPatch) const
switch_status_t FSMediaStream::read_frame(switch_frame_t **frame, switch_io_flag_t flags)
{
*frame = &m_readFrame;
m_readFrame.flags |= SFF_CNG;
PatchPtr mediaPatch;
switch (StartReadWrite(mediaPatch)) {
case -1 :
@ -1374,7 +1401,9 @@ switch_status_t FSMediaStream::read_frame(switch_frame_t **frame, switch_io_flag
mediaPatch->GetSource().EnableJitterBuffer(); // This flushes data and resets jitter buffer
m_readRTP.SetPayloadSize(0);
} else {
if (m_switchCodec != NULL) {
m_readRTP.SetTimestamp(m_readFrame.timestamp + m_switchCodec->implementation->samples_per_packet);
}
if (!mediaPatch->GetSource().ReadPacket(m_readRTP)) {
PTRACE(1, "mod_opal\tread_frame: no source data!");
@ -1393,13 +1422,19 @@ switch_status_t FSMediaStream::read_frame(switch_frame_t **frame, switch_io_flag
}
}
*frame = &m_readFrame;
m_readFrame.packet = m_readRTP.GetPointer();
m_readFrame.packetlen = m_readRTP.GetHeaderSize() + m_readFrame.datalen;
if ((m_readFrame.flags & (SFF_UDPTL_PACKET|SFF_RAW_RTP)) != 0)
if (switch_test_flag(&m_readFrame, SFF_UDPTL_PACKET)) {
m_readFrame.flags &= ~SFF_CNG;
m_readFrame.packet = m_readRTP.GetPayloadPtr();
m_readFrame.packetlen = m_readRTP.GetPayloadSize();
return SWITCH_STATUS_SUCCESS;
}
if (switch_test_flag(&m_readFrame, SFF_RAW_RTP)) {
m_readFrame.flags &= ~SFF_CNG;
m_readFrame.packet = m_readRTP.GetPointer();
m_readFrame.packetlen = m_readRTP.GetHeaderSize() + m_readRTP.GetPayloadSize();
return SWITCH_STATUS_SUCCESS;
}
#if IMPLEMENT_MULTI_FAME_AUDIO
// Repackage frames in incoming packet to agree with what FS expects.
@ -1415,9 +1450,12 @@ switch_status_t FSMediaStream::read_frame(switch_frame_t **frame, switch_io_flag
m_readFrame.ssrc = m_readRTP.GetSyncSource();
m_readFrame.m = m_readRTP.GetMarker() ? SWITCH_TRUE : SWITCH_FALSE;
m_readFrame.payload = (switch_payload_t)m_readRTP.GetPayloadType();
m_readFrame.flags = m_readFrame.datalen == 0 ||
m_readFrame.payload == RTP_DataFrame::CN ||
m_readFrame.payload == RTP_DataFrame::Cisco_CN ? SFF_CNG : 0;
if (m_readFrame.datalen > 0 &&
m_readFrame.payload != RTP_DataFrame::CN &&
m_readFrame.payload != RTP_DataFrame::Cisco_CN) {
m_readFrame.flags &= ~SFF_CNG;
}
return SWITCH_STATUS_SUCCESS;
}
@ -1433,12 +1471,16 @@ switch_status_t FSMediaStream::write_frame(const switch_frame_t *frame, switch_i
return SWITCH_STATUS_SUCCESS;
}
if ((frame->flags & (SFF_UDPTL_PACKET|SFF_RAW_RTP)) != 0) {
RTP_DataFrame rtp((const BYTE *)frame->packet, frame->packetlen, false);
return mediaPatch->PushFrame(rtp) ? SWITCH_STATUS_SUCCESS : SWITCH_STATUS_FALSE;
RTP_DataFrame rtp;
if (switch_test_flag(frame, SFF_RAW_RTP)) {
rtp = RTP_DataFrame((const BYTE *)frame->packet, frame->packetlen, false);
}
RTP_DataFrame rtp(frame->datalen);
else if (switch_test_flag(frame, SFF_UDPTL_PACKET)) {
rtp.SetPayloadSize(frame->packetlen);
memcpy(rtp.GetPayloadPtr(), frame->packet, frame->packetlen);
}
else {
rtp.SetPayloadSize(frame->datalen);
memcpy(rtp.GetPayloadPtr(), frame->data, frame->datalen);
rtp.SetPayloadType(mediaFormat.GetPayloadType());
@ -1449,9 +1491,10 @@ switch_status_t FSMediaStream::write_frame(const switch_frame_t *frame, switch_i
timestamp = frame->timestamp;
else if (frame->samples != 0)
timestamp += frame->samples;
else
else if (m_switchCodec != NULL)
timestamp += m_switchCodec->implementation->samples_per_packet;
rtp.SetTimestamp(timestamp);
}
if (mediaPatch->PushFrame(rtp))
return SWITCH_STATUS_SUCCESS;

3
src/mod/endpoints/mod_opal/mod_opal.h
View File

@ -331,7 +331,10 @@ class FSConnection : public OpalLocalConnection
switch_codec_t m_vid_read_codec;
switch_codec_t m_vid_write_codec;
switch_frame_t m_dummy_frame;
bool m_flushAudio;
bool m_udptl;
friend PBoolean FSMediaStream::Open();
};