Add command line parameters. Fixes #30 (#89)

* Add command line parameters. Fixes #30

* Fixed compile errors

* Fixed code review findings

* Fixed code review findings, take 2

app/cli/commandlineparser.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include "settings/streamingpreferences.h"
+
+#include <QMap>
+#include <QString>
+
+class GlobalCommandLineParser
+{
+public:
+    enum ParseResult {
+        NormalStartRequested,
+        StreamRequested,
+    };
+
+    GlobalCommandLineParser();
+    virtual ~GlobalCommandLineParser();
+
+    ParseResult parse(const QStringList &args);
+
+};
+
+class StreamCommandLineParser
+{
+public:
+    StreamCommandLineParser();
+    virtual ~StreamCommandLineParser();
+
+    void parse(const QStringList &args, StreamingPreferences *preferences);
+
+    QString getHost() const;
+    QString getAppName() const;
+
+private:
+    QString m_Host;
+    QString m_AppName;
+    QMap<QString, StreamingPreferences::WindowMode> m_WindowModeMap;
+    QMap<QString, StreamingPreferences::AudioConfig> m_AudioConfigMap;
+    QMap<QString, StreamingPreferences::VideoCodecConfig> m_VideoCodecMap;
+    QMap<QString, StreamingPreferences::VideoDecoderSelection> m_VideoDecoderMap;
+};