- Moved DMX reading and file selection from Pure Data to the GUI.

- Added udserver external. All the communication between pure data
process and GUI now is done through Unix Domain Sockets.
- Only video files are working at the moment.
- Creating thumbnails now is done in the start routine.
- CITP/MSEx and DMX reading is started automatically in the start
routine.
- The dmx settings are reading from an xml file. Support for edit
through the GUI and save and open files in next commits. Also it should
integrates the window configuration.
- Audio has been cutted. It will be supported in a separate application.

src/olainterface.h

@@ -0,0 +1,135 @@
+/* olainterface.h
+   Santi Noreña 2013
+   It includes two classes:
+   olaWorker is the threading class that reads raw DMX from ola daemon
+   olaInterface controls olaWorker and translates DMX values received from olaWorker into orders to RenderingManager and Source
+*/
+#ifndef OLAINTERFACE_H
+#define OLAINTERFACE_H
+
+// Define the DMX personality to avoid dealing with numbers and change it easy
+#define DMX_FOLDER 5
+#define DMX_FILE 6
+#define DMX_SOURCETYPE 7
+
+#define LAYER_CHANNELS 63 // The numer of control channels per video layer
+#define MAX_SOURCE_DMX 8 // Number of maximum Sources controlled by DMX. It should be equal to MAX_SOURCE_COUNT
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <QObject>
+#include <QThread>
+#include <QDebug>
+#include <QXmlStreamReader>
+#include <QFile>
+#include <QMessageBox>
+#include <QProcess>
+
+// The OLA Library
+#include <ola/OlaClientWrapper.h>
+#include <ola/OlaCallbackClient.h>
+
+#include "CITPDefines.h"
+#include "MSEXDefines.h"
+#include "msex.h"
+#include "QDir"
+#include "libremediaserver.h"
+
+using namespace ola;
+
+// struct where save the DMX settings for each layer
+struct dmxSettings {
+    int address;
+    uint universe;
+    bool updated;
+};
+
+class olaWorker : public QThread
+{
+     Q_OBJECT
+
+    friend class olaInterface;
+
+public:
+
+protected:
+
+     olaWorker();
+     virtual ~olaWorker();
+
+     OlaCallbackClientWrapper *m_client;
+     OlaCallbackClient *m_clientpointer;
+     unsigned int m_counter;
+     struct timeval m_last_data; // Last DMX frame received
+     QList<dmxSettings> m_settings;
+     QList<int> m_universe;   // OLA universes binding
+     // DMX Conf
+     int m_dmx[MAX_SOURCE_DMX][LAYER_CHANNELS]; // DMX Buffer
+     int m_layersNumber;                        // Number of layers in wich divide the dmx frame. Each layer, one source.
+
+private:
+
+     void NewDmx(unsigned int universe,const DmxBuffer &buffer,const string &error); // Callback from OlaCallbackCLient when there is new dmx info
+     bool CheckDataLoss();
+     void RegisterComplete(const string &error); // Called after completing the register
+
+protected slots:
+
+     void olastart(); // Starts the conexion with olad. olad must be running before this
+     void olastop();  // Close the connection with olad.
+
+signals:
+
+     void finished(); // Signal for closing. Not use now.
+     void dmx(int layer, int channel, int value); // Signal when a channel has changed
+};
+
+class msex;
+class olaInterface : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit olaInterface();
+    virtual ~olaInterface();
+
+    void open(); // Starts the thread and open the connection with olad
+    void close(); // Close the connection with olad
+
+    olaWorker *worker; // The thread of connection with ola.
+
+    inline void setPath(QString path) {m_pathmedia = path;} // Set the path to the root media path. The media files are inside this folder tree.
+    inline QString getPath () {return m_pathmedia;} //  Get the path to the medias folder tree.
+
+    msex *m_msex;
+    QList<MediaLibrary> *m_media; // Library to save the folders/media libraries and index each media file inside
+                                 // Created here but m_msex acces for reading in this library
+protected:
+
+    QThread *m_thread; // The thread for olaWorker
+
+private:
+
+    void requestNewFile(int layer, int type); // When there is a change in the channels folder, file or type media (5,6,7), this is called. Creates a new source.
+    void initMediaLibrary();
+    QList<MediaInformation> getMediaInformation(QDir dir); // Get all the information of each media file in a dir
+
+    QString m_pathmedia; // Path to Medias
+
+    void readDataFromXML(); // Read the DMX configuration from the file dmx.xml
+
+public slots:
+
+    void dmx(int layer, int channel, int value); // Connected with signal dmx from olaWorker. This is the horsepower of all this. Converts DMX orders
+                                                 // into orders to RenderingManager and Source. Mantains updated the videolayer struct.
+signals:
+
+    void sendDmx(int layer,int channel, int value);
+    void newFile(QString file);
+};
+
+
+#endif // OLAINTERFACE_H
+