1 files changed, 67 insertions, 0 deletions
diff --git a/helper.cpp b/helper.cpp
index d19cdf1..db113ec 100644
--- a/helper.cpp
+++ b/helper.cpp
@@ -2,6 +2,8 @@
 #include <QFileInfo>
 #include <QCryptographicHash>
 #include <QByteArray>
+#include <QSettings>
+#include <QProcess>
 
 #include "helper.h"
 
@@ -47,4 +49,69 @@ namespace Helper {
         }
         return retval;
     }
+
+    const QJsonDocument ffpmegData(const QString &path){
+        QSettings s;
+        QString ffProbe = s.value("ext/ffprobe").toString();
+        QStringList args;
+        args << "-v" << "quiet" << "-print_format" << "json" << "-show_format" << "-show_streams" << path;
+        QProcess ffproc;
+        ffproc.start(ffProbe, args);
+        if(!ffproc.waitForStarted()){
+            return QJsonDocument();
+        }
+        ffproc.waitForFinished();
+        QByteArray ffData = ffproc.readAllStandardOutput();
+
+        return QJsonDocument::fromJson(ffData);
+    }
+
+    Duration::Duration() : mHours(0), mMinutes(0), mSeconds(0) {}
+
+    Duration::Duration(qint64 seconds){
+        int sec(0), min(0), h(0);
+        // get hours
+        h = (seconds / 60 / 60);
+        // remaining minutes
+        min = (seconds / 60) % 60;
+        // seconds
+        sec = seconds % 60;
+        mHours = h;
+        mMinutes = min;
+        mSeconds = sec;
+    }
+
+    Duration::Duration(const QString &dur) : mHours(0), mMinutes(0), mSeconds(0){
+        QStringList parts = dur.split(':');
+        if(parts.size() == 3){
+            mHours = parts.at(0).toInt();
+            mMinutes = parts.at(1).toInt();
+            mSeconds = parts.at(2).toInt();
+        }
+    }
+
+    Duration Duration::operator+(const Duration &dur) const{
+        Duration retval;
+        retval.mSeconds = mSeconds + dur.mSeconds;
+        retval.mMinutes = mMinutes + dur.mMinutes + retval.mSeconds / 60;
+        retval.mSeconds %= 60;
+        retval.mHours = mHours + dur.mHours + retval.mMinutes / 60;
+        retval.mMinutes %= 60;
+        return retval;
+    }
+
+    const QString Duration::toString() const {
+        QString retval = QString("%1:%2:%3").arg(QString::number(mHours), 2, '0').arg(QString::number(mMinutes), 2, '0').arg(QString::number(mSeconds), 2, '0');
+        return retval;
+    }
+
+    bool Duration::isNull() const {
+        return mHours == 0 && mMinutes == 0 && mSeconds == 0;
+    }
+
+    qint64 Duration::toSeconds() const {
+        qint64 retval;
+        retval = mHours * 60 * 60 + mMinutes * 60 + mSeconds;
+        return retval;
+    }
 }