cxUSSavingRecorder.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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=========================================================================*/

#include "cxUSSavingRecorder.h"

#include <QtConcurrentRun>
#include "boost/bind.hpp"

#include "cxTypeConversions.h"

#include "cxTime.h"
#include "cxTool.h"
#include "cxVideoSource.h"
#include "cxLogger.h"
#include "cxDataLocations.h"
#include "cxSavingVideoRecorder.h"
#include "cxImageDataContainer.h"
#include "cxRecordSession.h"
#include "cxUsReconstructionFileMaker.h"


namespace cx
{


USSavingRecorder::USSavingRecorder() : mDoWriteColor(true), m_rMpr(Transform3D::Identity())
{

}

USSavingRecorder::~USSavingRecorder()
{
        std::list<QFutureWatcher<QString>*>::iterator iter;
        for (iter=mSaveThreads.begin(); iter!=mSaveThreads.end(); ++iter)
        {
                (*iter)->waitForFinished();
        }
}

void USSavingRecorder::setWriteColor(bool on)
{
        mDoWriteColor = on;
}

void USSavingRecorder::set_rMpr(Transform3D rMpr)
{
        m_rMpr = rMpr;
}

void USSavingRecorder::startRecord(RecordSessionPtr session, ToolPtr tool, std::vector<VideoSourcePtr> video)
{
        this->clearRecording(); // clear previous data if any

        mRecordingTool = tool;
        mSession = session;

        QString tempBaseFolder = DataLocations::getCachePath()+"/usacq/"+QDateTime::currentDateTime().toString(timestampSecondsFormat());
        QString cacheFolder = UsReconstructionFileMaker::createUniqueFolder(tempBaseFolder, session->getDescription());

        for (unsigned i=0; i<video.size(); ++i)
        {
                SavingVideoRecorderPtr videoRecorder;
                videoRecorder.reset(new SavingVideoRecorder(
                                                                 video[i],
                                                                 cacheFolder,
                                                                 QString("%1_%2").arg(session->getDescription()).arg(video[i]->getUid()),
                                                                 false, // no compression when saving to cache
                                                                 mDoWriteColor));
                videoRecorder->startRecord();
                mVideoRecorder.push_back(videoRecorder);
        }

        reportSuccess("Ultrasound acquisition started.");
}

void USSavingRecorder::stopRecord()
{
        for (unsigned i=0; i<mVideoRecorder.size(); ++i)
                mVideoRecorder[i]->stopRecord();
        reportSuccess("Ultrasound acquisition stopped.");

        for (unsigned i=0; i<mVideoRecorder.size(); ++i)
        {
                // complete writing of images to temporary storage. Do this before using the image data.
                mVideoRecorder[i]->completeSave();
//              std::cout << QString("completed save of cached video stream %1").arg(i) << std::endl;
        }
}

void USSavingRecorder::cancelRecord()
{
        this->clearRecording();
        report("Ultrasound acquisition cancelled.");
}

USReconstructInputData USSavingRecorder::getDataForStream(QString streamUid)
{
        for (unsigned i=0; i<mVideoRecorder.size(); ++i)
        {
                if (mVideoRecorder[i]->getSource()->getUid() == streamUid)
                        return this->getDataForStream(i);
        }
        return USReconstructInputData();
}

USReconstructInputData USSavingRecorder::getDataForStream(unsigned videoRecorderIndex)
{
        if (!mSession)
                return USReconstructInputData();
        if (videoRecorderIndex>=mVideoRecorder.size())
                return USReconstructInputData();

        SavingVideoRecorderPtr videoRecorder = mVideoRecorder[videoRecorderIndex];
        videoRecorder->completeSave(); // just in case - should have been done earlier.
        TimedTransformMap trackerRecordedData = RecordSession::getToolHistory_prMt(mRecordingTool, mSession);

        CachedImageDataContainerPtr imageData = videoRecorder->getImageData();
        std::vector<double> imageTimestamps = videoRecorder->getTimestamps();
        QString streamSessionName = mSession->getDescription()+"_"+videoRecorder->getSource()->getUid();

        UsReconstructionFileMakerPtr fileMaker;
        fileMaker.reset(new UsReconstructionFileMaker(streamSessionName));
        USReconstructInputData reconstructData = fileMaker->getReconstructData(imageData,
                                                                                                                                                                imageTimestamps,
                                                                                                                                                                trackerRecordedData,
                                                                                                                                                                mRecordingTool,
                                                                                                                                                                mDoWriteColor,
                                                                                                                                                                m_rMpr);
        return reconstructData;
}

void USSavingRecorder::startSaveData(QString baseFolder, bool compressImages)
{
        if (!mSession)
                return;

        TimedTransformMap trackerRecordedData = RecordSession::getToolHistory_prMt(mRecordingTool, mSession);

        for (unsigned i=0; i<mVideoRecorder.size(); ++i)
        {
                USReconstructInputData data = this->getDataForStream(i);

                QString streamSessionName = mSession->getDescription()+"_"+mVideoRecorder[i]->getSource()->getUid();
                QString saveFolder = UsReconstructionFileMaker::createFolder(baseFolder, mSession->getDescription());

                this->saveStreamSession(data, saveFolder, streamSessionName, compressImages);
        }

//      this->clearRecording();
}

void USSavingRecorder::clearRecording()
{
        mVideoRecorder.clear();
        mSession.reset();
        mRecordingTool.reset();
}


size_t USSavingRecorder::getNumberOfSavingThreads() const
{
        return mSaveThreads.size();
}

void USSavingRecorder::saveStreamSession(USReconstructInputData reconstructData, QString saveFolder, QString streamSessionName, bool compress)
{
        UsReconstructionFileMakerPtr fileMaker;
        fileMaker.reset(new UsReconstructionFileMaker(streamSessionName));
        fileMaker->setReconstructData(reconstructData);

        // now start saving of data to the patient folder, compressed version:
        QFuture<QString> fileMakerFuture =
                        QtConcurrent::run(boost::bind(
                                                                  &UsReconstructionFileMaker::writeToNewFolder,
                                                                  fileMaker,
                                                                  saveFolder,
                                                                  compress
                                                                  ));
        QFutureWatcher<QString>* fileMakerFutureWatcher = new QFutureWatcher<QString>();
    connect(fileMakerFutureWatcher, SIGNAL(finished()), this, SLOT(fileMakerWriteFinished()));
        fileMakerFutureWatcher->setFuture(fileMakerFuture);
        mSaveThreads.push_back(fileMakerFutureWatcher);
        fileMaker.reset(); // filemaker is now stored in the mSaveThreads queue, clear as current.
}

void USSavingRecorder::fileMakerWriteFinished()
{
        std::list<QFutureWatcher<QString>*>::iterator iter;
    for (iter=mSaveThreads.begin(); iter!=mSaveThreads.end();)
        {
                if (!(*iter)->isFinished())
        {
            ++iter;
                        continue;
        }
                QString result = (*iter)->future().result();
                delete *iter;
        //this increments the iter, so no need to do it in the for statement
        iter = mSaveThreads.erase(iter);

                emit saveDataCompleted(result);
        }
}

}