/// Thread entry point, called by wxWidgets.
/// @return Always 0.
wxThread::ExitCode Controller::Entry()
{
mCommand = NONE;
//assumes mutex already locked here, so we can signal to the main thread that we are ready to accept signals by unlocking it when Wait() is called
while (1) {
if (NONE == mCommand) { //not been told to do anything new during previous interation
mCondition->Wait(); //unlock mutex and wait for a signal, then relock
}
//Now we're going
ControllerThreadEvent event(wxEVT_CONTROLLER_THREAD);
event.SetName(mName);
event.SetCommand(mCommand);
mCommand = NONE; //can now detect if another command is issued while busy(more frequently during abnormal situations)
mMutex.Unlock();
if (DIE == event.GetCommand()) {
AddPendingEvent(event);
break;
}
//do the work...
ProdAuto::Recorder::ReturnCode rc = ProdAuto::Recorder::SUCCESS;
wxString msg;
CORBA::StringSeq_var strings; //deletes itself
ProdAuto::MxfTimecode timecode; //structure so deletes itself
//send a recorder command, if any
for (int i = 0; i < 2; i++) { //always good to try things twice with CORBA
event.SetResult(SUCCESS); //default
switch (event.GetCommand())
{
case CONNECT: case RECONNECT: {
//std::cerr << "thread CONNECT/RECONNECT" << std::endl;
ProdAuto::MxfDuration maxPreroll = InvalidMxfDuration; //initialisation prevents compiler warning
ProdAuto::MxfDuration maxPostroll = InvalidMxfDuration; //initialisation prevents compiler warning
ProdAuto::TrackList_var trackList;
bool routerRecorder = false; //initialisation prevents compiler warning
event.SetTimecodeStateChanged(); //always trigger action
mLastTimecodeReceived.undefined = true; //guarantee that a valid timecode will be assumed to be running timecode
mMutex.Lock();
wxString name = mName;
mMutex.Unlock();
msg = mComms->SelectRecorder(name, mRecorder);
if (msg.IsEmpty()) { //OK so far
try {
trackList = mRecorder->Tracks();
maxPreroll = mRecorder->MaxPreRoll();
maxPostroll = mRecorder->MaxPostRoll();
event.SetTrackStatusList(mRecorder->TracksStatus());
routerRecorder = wxString(mRecorder->RecordingFormat(), *wxConvCurrent).MakeUpper().Matches(wxT("*ROUTER*"));
strings = mRecorder->ProjectNames();
}
catch (const CORBA::Exception & e) {
//std::cerr << "connect/reconnect exception: " << e._name() << std::endl;
msg = wxT("Error communicating with this recorder: ") + wxString(e._name(), *wxConvCurrent) + wxT(". Is it operational and connected to the network? The problem may resolve itself if you try again.");
}
}
if (!msg.IsEmpty()) { //failed to select
event.SetResult(COMM_FAILURE);
}
else { //OK so far
mMutex.Lock();
if (CONNECT == event.GetCommand()) {
//various checks on the data we've acquired
if (!trackList->length() || !event.GetNTracks()) {
msg = wxT("This recorder has no tracks.");
}
else if (maxPreroll.undefined) {
msg = wxT("This recorder has no maximum preroll.");
}
else if (!maxPreroll.edit_rate.numerator || !maxPreroll.edit_rate.denominator) {
msg = wxT("This recorder has invalid maximum preroll."); //don't want divide by zero errors
}
else if (maxPostroll.undefined) { //quite likely as postroll isn't dependent on buffer length
mMaxPostroll = maxPreroll; //for the edit rate values
mMaxPostroll.undefined = false;
mMaxPostroll.samples = DEFAULT_MAX_POSTROLL;
}
else if (!maxPostroll.edit_rate.numerator || !maxPostroll.edit_rate.denominator) {
msg = wxT("This recorder has invalid maximum postroll."); //don't want divide by zero errors
}
else {
mMaxPostroll = maxPostroll;
}
mTrackList = trackList;
mMaxPreroll = maxPreroll;
mSourceList.length(mTrackList->length());
mRouterRecorder = routerRecorder;
}
else { //reconnecting
//check nothing's changed after reconnection
if (maxPreroll.undefined
|| maxPreroll.edit_rate.numerator != mMaxPreroll.edit_rate.numerator
|| maxPreroll.edit_rate.denominator != mMaxPreroll.edit_rate.denominator
|| maxPreroll.samples != mMaxPreroll.samples) {
msg = wxT("the maximum preroll has changed");
}
else if ((maxPostroll.undefined && mMaxPostroll.samples != DEFAULT_MAX_POSTROLL) ||
(!maxPostroll.undefined &&
(maxPostroll.edit_rate.numerator != mMaxPostroll.edit_rate.numerator
|| maxPostroll.edit_rate.denominator != mMaxPostroll.edit_rate.denominator
|| maxPostroll.samples != mMaxPostroll.samples))) {
msg = wxT("the maximum postroll has changed");
}
else if (trackList->length() != mTrackList->length()) {
msg = wxT("the number of tracks has changed");
}
else if (mRouterRecorder && !routerRecorder) {
msg = wxT("it is no longer a router recorder");
}
else if (!mRouterRecorder && routerRecorder) {
msg = wxT("it now presents itself as a router recorder");
}
else {
for (unsigned int i = 0; i < trackList->length(); i++) {
if (strcmp(trackList[i].name, mTrackList[i].name)) {
msg = wxT("name");
}
else if (trackList[i].type != mTrackList[i].type) {
msg = wxT("type");
}
else if (trackList[i].id != mTrackList[i].id) {
msg = wxT("ID");
}
else if (trackList[i].has_source != mTrackList[i].has_source) {
msg = wxT("\"has_source\" status");
}
else if (trackList[i].has_source && strcmp(trackList[i].src.package_name, mTrackList[i].src.package_name)) {
msg = wxT("package name");
}
else if (trackList[i].has_source && strcmp(trackList[i].src.track_name, mTrackList[i].src.track_name)) {
msg = wxT("track name");
}
if (msg.Length()) {
msg = wxT("track \"") + wxString(mTrackList[i].name, *wxConvCurrent) + wxT("\" has changed ") + msg;
break;
}
}
}
}
mMutex.Unlock();
}
if (msg.IsEmpty()) {
rc = ProdAuto::Recorder::SUCCESS;
}
else {
rc = ProdAuto::Recorder::FAILURE;
event.SetMessage(msg);
event.SetTrackStatusList(0); //track status not valid
}
break;
}
case SET_TAPE_IDS: {
//std::cerr << "thread SET_TAPE_IDS" << std::endl;
mMutex.Lock();
CORBA::StringSeq sourceNames = mSourceNames;
CORBA::StringSeq tapeIds = mTapeIds;
mMutex.Unlock();
try {
mRecorder->SetTapeNames(sourceNames, tapeIds);
}
catch (const CORBA::Exception & e) {
//std::cerr << "set tape IDs exception: " << e._name() << std::endl;
event.SetResult(COMM_FAILURE);
}
rc = ProdAuto::Recorder::SUCCESS; //no return code suppled by SetTapeNames()
break;
}
case ADD_PROJECT_NAMES: {
mMutex.Lock();
CORBA::StringSeq projectNames = mProjectNames;
mMutex.Unlock();
try {
mRecorder->AddProjectNames(projectNames);
}
catch (const CORBA::Exception & e) {
//std::cerr << "AddProjectNames exception: " << e._name() << std::endl;
event.SetResult(COMM_FAILURE);
}
rc = ProdAuto::Recorder::SUCCESS; //no return code suppled by AddProject()
break;
}
case RECORD: {
//std::cerr << "thread RECORD" << std::endl;
mMutex.Lock();
timecode = mStartTimecode;
ProdAuto::MxfDuration preroll = mPreroll;
CORBA::BooleanSeq rec_enable = mEnableList;
std::string project = (const char *) mProject.mb_str(*wxConvCurrent);
mMutex.Unlock();
try {
rc = mRecorder->Start(timecode, preroll, rec_enable, project.c_str(), false);
}
catch (const CORBA::Exception & e) {
//std::cerr << "start exception: " << e._name() << std::endl;
event.SetResult(COMM_FAILURE);
}
break;
}
case STOP: {
//std::cerr << "thread STOP" << std::endl;
mMutex.Lock();
timecode = mStopTimecode;
ProdAuto::MxfDuration postroll = mPostroll;
char * description = CORBA::string_dup(mDescription.mb_str(*wxConvCurrent));
ProdAuto::LocatorSeq locators = mLocators;
mMutex.Unlock();
try {
rc = mRecorder->Stop(timecode, postroll, description, locators, strings.out());
}
catch (const CORBA::Exception & e) {
//std::cerr << "stop exception: " << e._name() << std::endl;
event.SetResult(COMM_FAILURE);
}
event.SetTimecodeStateChanged(); //so that a timecode that was stuck during the recording will be reported as such
break;
}
default:
break;
}
if (COMM_FAILURE != event.GetResult()) {
if (ProdAuto::Recorder::SUCCESS == rc) {
event.SetStrings(strings); //only relevant for STOP (list of files) and CONNECT (list of project names)
if (!timecode.edit_rate.numerator || !timecode.edit_rate.denominator) {
timecode.undefined = true;
}
event.SetTimecode(timecode); //only relevant for START and STOP
}
else {
event.SetResult(FAILURE);
}
break; //comms successful or no call made: no need to try again
}
}
event.SetTrackList(mTrackList);
//get status
if (COMM_FAILURE != event.GetResult()) {
for (int j = 0; j < 2; j++) { //always good to try things twice with CORBA
try {
if (CONNECT != event.GetCommand() && RECONNECT != event.GetCommand()) { //haven't already got track status list
event.SetTrackStatusList(mRecorder->TracksStatus());
}
//timecode situation
if (!event.GetNTracks() || event.GetTrackStatusList()[0].timecode.undefined || !event.GetTrackStatusList()[0].timecode.edit_rate.numerator || !event.GetTrackStatusList()[0].timecode.edit_rate.denominator) { //no or invalid timecode
if (!mLastTimecodeReceived.undefined) { //newly in this state
mLastTimecodeReceived.undefined = true; //to allow future detection of state change
event.SetTimecodeStateChanged();
//ABSENT is the default timecode state in the event
}
}
else { //timecode value is OK
ProdAuto::MxfTimecode timecode = event.GetTrackStatusList()[0].timecode;
if (mLastTimecodeReceived.undefined) { //timecode has just appeared
event.SetTimecodeState(UNCONFIRMED);
if (!mTimecodeRunning) { //just started
mTimecodeRunning = true; //to allow future detection of state change
event.SetTimecodeStateChanged();
}
}
else if (!wxDateTime::Now().IsEqualUpTo(mLastTimecodeRequest, wxTimeSpan::Milliseconds(100))) { //long enough since the last stored value was received to assume that the timecode has changed
if (timecode.samples != mLastTimecodeReceived.samples) { //timecode is running
event.SetTimecodeState(RUNNING);
if (!mTimecodeRunning) { //just started
mTimecodeRunning = true; //to allow future detection of state change
event.SetTimecodeStateChanged();
}
}
else { //timecode is stuck
event.SetTimecodeState(STUCK);
if (mTimecodeRunning) { //just stopped
mTimecodeRunning = false; //to allow future detection of state change
event.SetTimecodeStateChanged();
}
}
}
else {
//repeat previous status
event.SetTimecodeState(mTimecodeRunning ? UNCONFIRMED : STUCK);
}
mLastTimecodeReceived = timecode;
mLastTimecodeRequest = wxDateTime::Now(); //now or sometime before!
}
break; //successful: no need to try again
}
catch (const CORBA::Exception & e) {
//std::cerr << "status exception: " << e._name() << std::endl;
event.SetResult(COMM_FAILURE);
//indicated by list size being zero
}
}
}
//communicate the results
AddPendingEvent(event);
mMutex.Lock();
}
return 0;
}
RecordingDevice::ReturnCode RecordingDevice::StopRecording(const Timecode & tc)
{
bool ok_so_far = true;
ReturnCode return_code = OK;
if(CORBA::is_nil(mRecorder))
{
ok_so_far = false;
return_code = NO_DEVICE;
}
if (ok_so_far)
{
// Sort out parameters to be passed
ProdAuto::MxfTimecode stop_tc_mxf;
stop_tc_mxf.undefined = false;
stop_tc_mxf.samples = tc.FramesSinceMidnight();
//::Duration post_roll_dur;
//post_roll_dur.TotalFrames(post_roll_frames);
ProdAuto::MxfDuration post_roll_mxf;
post_roll_mxf.undefined = false;
post_roll_mxf.samples = post_roll_frames;
::ProdAuto::Recorder::ReturnCode result;
CORBA::StringSeq_var files;
::ProdAuto::LocatorSeq locators;
try
{
result = mRecorder->Stop(stop_tc_mxf, post_roll_mxf, "", "", locators, files.out());
}
catch (const CORBA::Exception &)
{
result = ProdAuto::Recorder::FAILURE;
}
if(ProdAuto::Recorder::SUCCESS == result)
{
//stop_tc += post_roll_dur;
//mOutTime = stop_tc.Text(); // store the stop timecode
//::Duration dur_tc;
//dur_tc = Timecode(mOutTime.c_str()) - Timecode(mInTime.c_str());
//mDuration = dur_tc.Text(); // store the duration
// need to store paths
//for(int i = 0; i < SDI_RECORDER_CHANNELS; ++i)
//{
//mFilename[i] = path.in()[i].in();
//}
mIsRecording = false;
mHasRecorded = true;
}
else
{
ok_so_far = false;
return_code = FAILED;
}
}
return return_code;
}