Initial commit

Lts/Services/AudioVideoManagement/av_helper.h

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+/**
+  * @RDE_HEADER@
+  * AV helper functions
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Christian Fröbel, SLSE, 2017-06-23
+  */
+
+#pragma once
+
+#include "avm_export.h"
+#include "ava_types.h"
+#include <chrono>
+#include <utility>
+#include <string>
+
+class QByteArray;
+class QString;
+
+
+namespace AudioVideoManagement
+{
+
+/**
+ * Input format: a float denoting the duration in seconds;
+ * resolution is one hundredth of a second.
+ * The dot ('.') and digital places thereafter are optional.
+ * When given, there must be exactly two digital places.
+ * Valid input examples:
+ * - 1494829980.13
+ * - 1494829980
+ */
+AVM_COMMON_EXPORT AvaDuration createDuration(const QByteArray &avDuration);
+
+/**
+ * input format: same as for createDuration().
+ */
+AVM_COMMON_EXPORT AvaTimePoint createTimePoint(const QByteArray &avTimePoint);
+
+
+AVM_COMMON_EXPORT QString toString(AvaDuration pos);
+AVM_COMMON_EXPORT QString toString(AvaTimePoint pos);
+AVM_COMMON_EXPORT qint64 toMSecSinceEpoch(AvaTimePoint pos);
+AVM_COMMON_EXPORT AvaTimePoint toTimePoint(qint64 msecSinceEpoch);
+
+AVM_COMMON_EXPORT bool isStreamNameValid(const std::string &name);
+AVM_COMMON_EXPORT bool isStreamNameValid(const QString &name);
+
+/**
+ * @param nameWithSourceSpec is the AVS-internal stream name plus a source specifier:
+ * "(S)" for Server, "(L)" for Local, nothing for Interface.
+ * @return the StreamSource and the stream name without the source specicifier.
+ */
+AVM_COMMON_EXPORT std::pair<AvaStreamSource, QString>  extractStreamSource(const QString &nameWithSourceSpec);
+
+} // namespace AudioVideoManagement