diff --git a/YUViewLib/src/common/Formatting.h b/YUViewLib/src/common/Formatting.h
index 427014c2d..6696de333 100644
--- a/YUViewLib/src/common/Formatting.h
+++ b/YUViewLib/src/common/Formatting.h
@@ -51,7 +51,7 @@ template <typename T> std::string to_string(const std::pair<T, T> &typePair)
   return stream.str();
 }
 
-template <typename T> std::ostream &operator<<(std::ostream &stream, const std::vector<T> vec)
+template <typename T> std::ostream &operator<<(std::ostream &stream, const std::vector<T> &vec)
 {
   stream << "[";
   for (auto it = vec.begin(); it != vec.end(); it++)
@@ -64,7 +64,7 @@ template <typename T> std::ostream &operator<<(std::ostream &stream, const std::
   return stream;
 }
 
-template <typename T> std::string to_string(const std::vector<T> vec)
+template <typename T> std::string to_string(const std::vector<T> &vec)
 {
   std::ostringstream stream;
   stream << vec;
@@ -73,7 +73,7 @@ template <typename T> std::string to_string(const std::vector<T> vec)
 
 static std::ostream &operator<<(std::ostream &stream, const Size &size)
 {
-  stream << "(" << size.width << "x" << size.height << ")";
+  stream << size.width << "x" << size.height;
   return stream;
 }
 
@@ -89,13 +89,31 @@ inline std::string to_string(const bool b)
   return b ? "True" : "False";
 }
 
+template <typename T>
+static std::ostream &operator<<(std::ostream &stream, const std::optional<T> &opt)
+{
+  if (opt)
+    stream << opt.value();
+  else
+    stream << "NA";
+  return stream;
+}
+
+template <typename T> inline std::string to_string(const std::optional<T> &opt)
+{
+  std::ostringstream stream;
+  stream << opt;
+  return stream.str();
+}
+
 inline std::string stringReplaceAll(std::string str, char value, char replacement)
 {
   std::replace(str.begin(), str.end(), value, replacement);
   return str;
 }
 
-inline std::string stringReplaceAll(std::string str, std::initializer_list<char> values, char replacement)
+inline std::string
+stringReplaceAll(std::string str, std::initializer_list<char> values, char replacement)
 {
   std::replace_if(
       str.begin(),
diff --git a/YUViewLib/src/common/FileInfo.h b/YUViewLib/src/common/InfoItemAndData.h
similarity index 74%
rename from YUViewLib/src/common/FileInfo.h
rename to YUViewLib/src/common/InfoItemAndData.h
index 49a7e924b..e50a291b0 100644
--- a/YUViewLib/src/common/FileInfo.h
+++ b/YUViewLib/src/common/InfoItemAndData.h
@@ -37,26 +37,25 @@
 #include <QString>
 
 /*
- * An info item has a name, a text and an optional toolTip. These are used to show them in the
- * fileInfoWidget. For example: ["File Name", "file.yuv"] or ["Number Frames", "123"] Another option
- * is to show a button. If the user clicks on it, the callback function infoListButtonPressed() for
- * the corresponding playlist item is called.
+ * An info item has a name, a text and an optional description. These are used to show them in the
+ * fileInfoWidget. For example: ["File Name", "file.yuv"] or ["Number Frames", "123"].
  */
 struct InfoItem
 {
-  InfoItem(const QString &name,
-           const QString &text,
-           const QString &toolTip  = QString(),
-           bool           button   = false,
-           int            buttonID = -1)
-      : name(name), text(text), button(button), buttonID(buttonID), toolTip(toolTip)
+  std::string name{};
+  std::string text{};
+  std::string description{};
+
+  InfoItem(std::string &&name, std::string &&text) : name(std::move(name)), text(std::move(text)) {}
+  InfoItem(std::string &&name, std::string &&text, std::string &&description)
+      : name(std::move(name)), text(std::move(text)), description(std::move(description))
+  {
+  }
+  InfoItem(std::string_view name, std::string_view text) : name(name), text(text) {}
+  InfoItem(std::string_view name, std::string_view text, std::string_view description)
+      : name(name), text(text), description(description)
   {
   }
-  QString name{};
-  QString text{};
-  bool    button{};
-  int     buttonID{};
-  QString toolTip{};
 };
 
 struct InfoData
diff --git a/YUViewLib/src/common/Typedef.h b/YUViewLib/src/common/Typedef.h
index 02bcc203e..211b8ab78 100644
--- a/YUViewLib/src/common/Typedef.h
+++ b/YUViewLib/src/common/Typedef.h
@@ -279,6 +279,7 @@ struct Size
   {
     return this->width != other.width || this->height != other.height;
   }
+  explicit       operator bool() const { return this->isValid(); }
   constexpr bool isValid() const { return this->width > 0 && this->height > 0; }
   unsigned       width{};
   unsigned       height{};
@@ -345,7 +346,7 @@ Q_DECLARE_METATYPE(recacheIndicator)
 template <typename... Args> struct QNonConstOverload
 {
   template <typename R, typename T>
-  Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+  Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const Q_DECL_NOTHROW->decltype(ptr)
   {
     return ptr;
   }
@@ -358,7 +359,7 @@ template <typename... Args> struct QNonConstOverload
 template <typename... Args> struct QConstOverload
 {
   template <typename R, typename T>
-  Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const Q_DECL_NOTHROW -> decltype(ptr)
+  Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const Q_DECL_NOTHROW->decltype(ptr)
   {
     return ptr;
   }
@@ -375,7 +376,7 @@ template <typename... Args> struct QOverload : QConstOverload<Args...>, QNonCons
   using QNonConstOverload<Args...>::of;
   using QNonConstOverload<Args...>::operator();
   template <typename R>
-  Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+  Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const Q_DECL_NOTHROW->decltype(ptr)
   {
     return ptr;
   }
diff --git a/YUViewLib/src/decoder/decoderHM.h b/YUViewLib/src/decoder/decoderHM.h
index fb465f36a..88022d7ac 100644
--- a/YUViewLib/src/decoder/decoderHM.h
+++ b/YUViewLib/src/decoder/decoderHM.h
@@ -34,7 +34,7 @@
 
 #include <QLibrary>
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 #include <decoder/decoderBase.h>
 #include <decoder/externalHeader/libHMDecoder.h>
 #include <video/yuv/videoHandlerYUV.h>
@@ -51,11 +51,11 @@ struct LibraryFunctionsHM
   void (*libHMDec_set_SEI_Check)(libHMDec_context *, bool check_hash){};
   void (*libHMDec_set_max_temporal_layer)(libHMDec_context *, int max_layer){};
   libHMDec_error (*libHMDec_push_nal_unit)(libHMDec_context *decCtx,
-                                           const void *      data8,
+                                           const void       *data8,
                                            int               length,
                                            bool              eof,
-                                           bool &            bNewPicture,
-                                           bool &            checkOutputPictures){};
+                                           bool             &bNewPicture,
+                                           bool             &checkOutputPictures){};
 
   // Get a picture and retrive information on the picture
   libHMDec_picture *(*libHMDec_get_picture)(libHMDec_context *){};
@@ -77,8 +77,8 @@ struct LibraryFunctionsHM
   libHMDec_BlockValue *(*libHMDEC_get_internal_info)(libHMDec_context *,
                                                      libHMDec_picture *pic,
                                                      unsigned int      typeIdx,
-                                                     unsigned int &    nrValues,
-                                                     bool &            callAgain){};
+                                                     unsigned int     &nrValues,
+                                                     bool             &callAgain){};
   libHMDec_error (*libHMDEC_clear_internal_info)(libHMDec_context *decCtx){};
 };
 
@@ -107,7 +107,7 @@ class decoderHM : public decoderBaseSingleLib
 private:
   // A private constructor that creates an uninitialized decoder library.
   // Used by checkLibraryFile to check if a file can be used as a this decoder.
-  decoderHM(){};
+  decoderHM() {};
 
   // Return the possible names of the HM library
   QStringList getLibraryNames() const override;
@@ -150,7 +150,7 @@ class decoderHM : public decoderBaseSingleLib
   QByteArray currentOutputBuffer;
   void       copyImgToByteArray(
             libHMDec_picture *src,
-            QByteArray &      dst); // Copy the raw data from the de265_image source *src to the byte array
+            QByteArray &dst); // Copy the raw data from the de265_image source *src to the byte array
 #endif
 
   LibraryFunctionsHM lib;
diff --git a/YUViewLib/src/decoder/decoderVTM.h b/YUViewLib/src/decoder/decoderVTM.h
index e304a2070..4eba0c522 100644
--- a/YUViewLib/src/decoder/decoderVTM.h
+++ b/YUViewLib/src/decoder/decoderVTM.h
@@ -34,7 +34,7 @@
 
 #include <QLibrary>
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 
 #include "decoderBase.h"
 #include "externalHeader/libVTMDecoder.h"
diff --git a/YUViewLib/src/decoder/decoderVVDec.h b/YUViewLib/src/decoder/decoderVVDec.h
index f622d2f07..80e0e6755 100644
--- a/YUViewLib/src/decoder/decoderVVDec.h
+++ b/YUViewLib/src/decoder/decoderVVDec.h
@@ -34,7 +34,7 @@
 
 #include <QLibrary>
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 #include <decoder/decoderBase.h>
 #include <decoder/externalHeader/vvdec/vvdec.h>
 #include <video/yuv/videoHandlerYUV.h>
diff --git a/YUViewLib/src/filesource/FileSource.cpp b/YUViewLib/src/filesource/FileSource.cpp
index 336d9d1c8..dc3a2b8e1 100644
--- a/YUViewLib/src/filesource/FileSource.cpp
+++ b/YUViewLib/src/filesource/FileSource.cpp
@@ -32,6 +32,7 @@
 
 #include "FileSource.h"
 
+#include <common/Formatting.h>
 #include <common/Typedef.h>
 
 #include <QDateTime>
@@ -55,26 +56,21 @@ FileSource::FileSource()
           &FileSource::fileSystemWatcherFileChanged);
 }
 
-bool FileSource::openFile(const QString &filePath)
+bool FileSource::openFile(const std::filesystem::path &filePath)
 {
-  // Check if the file exists
-  this->fileInfo.setFile(filePath);
-  if (!this->fileInfo.exists() || !this->fileInfo.isFile())
+  if (!std::filesystem::is_regular_file(filePath))
     return false;
 
   if (this->isFileOpened && this->srcFile.isOpen())
     this->srcFile.close();
 
-  // open file for reading
-  this->srcFile.setFileName(filePath);
+  this->srcFile.setFileName(QString::fromStdString(filePath.string()));
   this->isFileOpened = this->srcFile.open(QIODevice::ReadOnly);
   if (!this->isFileOpened)
     return false;
 
-  // Save the full file path
   this->fullFilePath = filePath;
 
-  // Install a watcher for the file (if file watching is active)
   this->updateFileWatchSetting();
   this->fileChanged = false;
 
@@ -115,30 +111,52 @@ int64_t FileSource::readBytes(QByteArray &targetBuffer, int64_t startPos, int64_
   return this->srcFile.read(targetBuffer.data(), nrBytes);
 }
 
-QList<InfoItem> FileSource::getFileInfoList() const
+std::vector<InfoItem> FileSource::getFileInfoList() const
 {
-  QList<InfoItem> infoList;
-
   if (!this->isFileOpened)
-    return infoList;
+    return {};
+
+  // For now we still use the QFileInfo. There is no easy cross platform formatting
+  // for the std::filesystem::file_time_type. This is added in C++ 20.
+  QFileInfo fileInfo(QString::fromStdString(this->fullFilePath.string()));
 
-  infoList.append(InfoItem("File Path", this->fileInfo.absoluteFilePath()));
+  std::vector<InfoItem> infoList;
+
+  infoList.emplace_back("File Path", this->fullFilePath.string());
 #if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-  auto createdtime = this->fileInfo.created().toString("yyyy-MM-dd hh:mm:ss");
+  const auto createdtime = this->fileInfo.created().toString("yyyy-MM-dd hh:mm:ss");
 #else
-  auto createdtime = this->fileInfo.birthTime().toString("yyyy-MM-dd hh:mm:ss");
+  const auto createdtime = fileInfo.birthTime().toString("yyyy-MM-dd hh:mm:ss");
 #endif
-  infoList.append(InfoItem("Time Created", createdtime));
-  infoList.append(
-      InfoItem("Time Modified", this->fileInfo.lastModified().toString("yyyy-MM-dd hh:mm:ss")));
-  infoList.append(InfoItem("Nr Bytes", QString("%1").arg(this->fileInfo.size())));
+  infoList.emplace_back("Time Created", createdtime.toStdString());
+  infoList.emplace_back("Time Modified",
+                        fileInfo.lastModified().toString("yyyy-MM-dd hh:mm:ss").toStdString());
+
+  if (const auto size = this->getFileSize())
+    infoList.emplace_back("Nr Bytes", to_string(this->getFileSize()));
 
   return infoList;
 }
 
-QString FileSource::getAbsoluteFilePath() const
+std::optional<int64_t> FileSource::getFileSize() const
+{
+  if (!this->isFileOpened)
+    return {};
+
+  try
+  {
+    const auto size = std::filesystem::file_size(this->fullFilePath);
+    return static_cast<int64_t>(size);
+  }
+  catch (const std::filesystem::filesystem_error &e)
+  {
+    return {};
+  }
+}
+
+std::string FileSource::getAbsoluteFilePath() const
 {
-  return this->isFileOpened ? this->fileInfo.absoluteFilePath() : QString();
+  return this->isFileOpened ? this->fullFilePath.string() : "";
 }
 
 // If you are loading a playlist and you have an absolute path and a relative path, this function
@@ -177,9 +195,9 @@ void FileSource::updateFileWatchSetting()
   // The addPath/removePath functions will do nothing if called twice for the same file.
   QSettings settings;
   if (settings.value("WatchFiles", true).toBool())
-    fileWatcher.addPath(this->fullFilePath);
+    fileWatcher.addPath(QString::fromStdString(this->fullFilePath.string()));
   else
-    fileWatcher.removePath(this->fullFilePath);
+    fileWatcher.removePath(QString::fromStdString(this->fullFilePath.string()));
 }
 
 void FileSource::clearFileCache()
@@ -195,7 +213,7 @@ void FileSource::clearFileCache()
   QMutexLocker locker(&this->readMutex);
   this->srcFile.close();
 
-  LPCWSTR file = (const wchar_t *)this->fullFilePath.utf16();
+  LPCWSTR file = this->fullFilePath.wstring().c_str();
   HANDLE  hFile =
       CreateFile(file, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_FLAG_NO_BUFFERING, NULL);
   CloseHandle(hFile);
diff --git a/YUViewLib/src/filesource/FileSource.h b/YUViewLib/src/filesource/FileSource.h
index c6057b512..cf4efe89b 100644
--- a/YUViewLib/src/filesource/FileSource.h
+++ b/YUViewLib/src/filesource/FileSource.h
@@ -39,10 +39,12 @@
 #include <QMutexLocker>
 #include <QString>
 
-#include <common/FileInfo.h>
 #include <common/EnumMapper.h>
+#include <common/InfoItemAndData.h>
 #include <common/Typedef.h>
 
+#include <filesystem>
+
 enum class InputFormat
 {
   Invalid = -1,
@@ -70,14 +72,13 @@ class FileSource : public QObject
 public:
   FileSource();
 
-  virtual bool openFile(const QString &filePath);
+  virtual bool openFile(const std::filesystem::path &filePath);
 
-  virtual QList<InfoItem> getFileInfoList() const;
-  int64_t                 getFileSize() const { return !isFileOpened ? -1 : fileInfo.size(); }
-  QString                 getAbsoluteFilePath() const;
-  QFileInfo               getFileInfo() const { return this->fileInfo; }
-  QFile                  *getQFile() { return &this->srcFile; }
-  bool                    getAndResetFileChangedFlag();
+  virtual std::vector<InfoItem> getFileInfoList() const;
+  std::optional<int64_t>        getFileSize() const;
+  std::string                   getAbsoluteFilePath() const;
+  QFile                        *getQFile() { return &this->srcFile; }
+  bool                          getAndResetFileChangedFlag();
 
   // Return true if the file could be opened and is ready for use.
   bool isOk() const { return this->isFileOpened; }
@@ -107,10 +108,9 @@ private slots:
   void fileSystemWatcherFileChanged(const QString &) { fileChanged = true; }
 
 protected:
-  QString   fullFilePath{};
-  QFileInfo fileInfo;
-  QFile     srcFile;
-  bool      isFileOpened{};
+  std::filesystem::path fullFilePath{};
+  QFile                 srcFile;
+  bool                  isFileOpened{};
 
 private:
   QFileSystemWatcher fileWatcher{};
diff --git a/YUViewLib/src/filesource/FileSourceAnnexBFile.cpp b/YUViewLib/src/filesource/FileSourceAnnexBFile.cpp
index cc22edf33..2d9dc6337 100644
--- a/YUViewLib/src/filesource/FileSourceAnnexBFile.cpp
+++ b/YUViewLib/src/filesource/FileSourceAnnexBFile.cpp
@@ -1,34 +1,34 @@
 /*  This file is part of YUView - The YUV player with advanced analytics toolset
-*   <https://github.com/IENT/YUView>
-*   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
-*
-*   This program is free software; you can redistribute it and/or modify
-*   it under the terms of the GNU General Public License as published by
-*   the Free Software Foundation; either version 3 of the License, or
-*   (at your option) any later version.
-*
-*   In addition, as a special exception, the copyright holders give
-*   permission to link the code of portions of this program with the
-*   OpenSSL library under certain conditions as described in each
-*   individual source file, and distribute linked combinations including
-*   the two.
-*   
-*   You must obey the GNU General Public License in all respects for all
-*   of the code used other than OpenSSL. If you modify file(s) with this
-*   exception, you may extend this exception to your version of the
-*   file(s), but you are not obligated to do so. If you do not wish to do
-*   so, delete this exception statement from your version. If you delete
-*   this exception statement from all source files in the program, then
-*   also delete it here.
-*
-*   This program is distributed in the hope that it will be useful,
-*   but WITHOUT ANY WARRANTY; without even the implied warranty of
-*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-*   GNU General Public License for more details.
-*
-*   You should have received a copy of the GNU General Public License
-*   along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ *   <https://github.com/IENT/YUView>
+ *   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   In addition, as a special exception, the copyright holders give
+ *   permission to link the code of portions of this program with the
+ *   OpenSSL library under certain conditions as described in each
+ *   individual source file, and distribute linked combinations including
+ *   the two.
+ *
+ *   You must obey the GNU General Public License in all respects for all
+ *   of the code used other than OpenSSL. If you modify file(s) with this
+ *   exception, you may extend this exception to your version of the
+ *   file(s), but you are not obligated to do so. If you do not wish to do
+ *   so, delete this exception statement from your version. If you delete
+ *   this exception statement from all source files in the program, then
+ *   also delete it here.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 
 #include "FileSourceAnnexBFile.h"
 
@@ -41,15 +41,21 @@
 #endif
 
 const auto BUFFERSIZE = 500000;
-const auto STARTCODE = QByteArrayLiteral("\x00\x00\x01");
+const auto STARTCODE  = QByteArrayLiteral("\x00\x00\x01");
 
 FileSourceAnnexBFile::FileSourceAnnexBFile()
 {
   this->fileBuffer.resize(BUFFERSIZE);
 }
 
-// Open the file and fill the read buffer. 
-bool FileSourceAnnexBFile::openFile(const QString &fileName)
+FileSourceAnnexBFile::FileSourceAnnexBFile(const std::filesystem::path &filePath)
+    : FileSourceAnnexBFile()
+{
+  this->openFile(filePath);
+}
+
+// Open the file and fill the read buffer.
+bool FileSourceAnnexBFile::openFile(const std::filesystem::path &fileName)
 {
   DEBUG_ANNEXBFILE("FileSourceAnnexBFile::openFile fileName " << fileName);
 
@@ -68,7 +74,7 @@ bool FileSourceAnnexBFile::openFile(const QString &fileName)
 }
 
 bool FileSourceAnnexBFile::atEnd() const
-{ 
+{
   return this->fileBufferSize < BUFFERSIZE && this->posInBuffer >= int64_t(this->fileBufferSize);
 }
 
@@ -76,12 +82,13 @@ void FileSourceAnnexBFile::seekToFirstNAL()
 {
   auto nextStartCodePos = this->fileBuffer.indexOf(STARTCODE);
   if (nextStartCodePos < 0)
-    // The first buffer does not contain a start code. This is very unusual. Use the normal getNextNALUnit to seek
+    // The first buffer does not contain a start code. This is very unusual. Use the normal
+    // getNextNALUnit to seek
     this->getNextNALUnit();
   else
   {
     // For 0001 or 001 point to the first 0 byte
-    if (nextStartCodePos > 0 && this->fileBuffer.at(nextStartCodePos-1) ==(char)0)
+    if (nextStartCodePos > 0 && this->fileBuffer.at(nextStartCodePos - 1) == (char)0)
       this->posInBuffer = nextStartCodePos - 1;
     else
       this->posInBuffer = nextStartCodePos;
@@ -91,7 +98,8 @@ void FileSourceAnnexBFile::seekToFirstNAL()
   this->nrBytesBeforeFirstNAL = this->bufferStartPosInFile + uint64_t(this->posInBuffer);
 }
 
-QByteArray FileSourceAnnexBFile::getNextNALUnit(bool getLastDataAgain, pairUint64 *startEndPosInFile)
+QByteArray FileSourceAnnexBFile::getNextNALUnit(bool        getLastDataAgain,
+                                                pairUint64 *startEndPosInFile)
 {
   if (getLastDataAgain)
     return this->lastReturnArray;
@@ -101,14 +109,15 @@ QByteArray FileSourceAnnexBFile::getNextNALUnit(bool getLastDataAgain, pairUint6
   if (startEndPosInFile)
     startEndPosInFile->first = this->bufferStartPosInFile + uint64_t(this->posInBuffer);
 
-  int nextStartCodePos = -1;
-  int searchOffset = 3;
-  bool startCodeFound = false;
+  int  nextStartCodePos = -1;
+  int  searchOffset     = 3;
+  bool startCodeFound   = false;
   while (!startCodeFound)
   {
     if (this->posInBuffer < 0)
     {
-      // Part of the start code was in the last buffer (see special boundary cases below). Add those parts.
+      // Part of the start code was in the last buffer (see special boundary cases below). Add those
+      // parts.
       const auto nrZeroBytesMissing = std::abs(this->posInBuffer);
       this->lastReturnArray.append(nrZeroBytesMissing, char(0));
     }
@@ -117,8 +126,10 @@ QByteArray FileSourceAnnexBFile::getNextNALUnit(bool getLastDataAgain, pairUint6
     if (nextStartCodePos < 0 || (uint64_t)nextStartCodePos > this->fileBufferSize)
     {
       // No start code found ... append all data in the current buffer.
-      this->lastReturnArray += this->fileBuffer.mid(this->posInBuffer, this->fileBufferSize - this->posInBuffer);
-      DEBUG_ANNEXBFILE("FileSourceHEVCAnnexBFile::getNextNALUnit no start code found - ret size " << this->lastReturnArray.size());
+      this->lastReturnArray +=
+          this->fileBuffer.mid(this->posInBuffer, this->fileBufferSize - this->posInBuffer);
+      DEBUG_ANNEXBFILE("FileSourceHEVCAnnexBFile::getNextNALUnit no start code found - ret size "
+                       << this->lastReturnArray.size());
 
       if (this->fileBufferSize < BUFFERSIZE)
       {
@@ -129,35 +140,40 @@ QByteArray FileSourceAnnexBFile::getNextNALUnit(bool getLastDataAgain, pairUint6
         return this->lastReturnArray;
       }
 
-      // Before we load the next bytes: The start code might be located at the boundary to the next buffer
+      // Before we load the next bytes: The start code might be located at the boundary to the next
+      // buffer
       const auto lastByteZero0 = this->fileBuffer.at(this->fileBufferSize - 3) == (char)0;
       const auto lastByteZero1 = this->fileBuffer.at(this->fileBufferSize - 2) == (char)0;
       const auto lastByteZero2 = this->fileBuffer.at(this->fileBufferSize - 1) == (char)0;
 
       // We have to continue searching - get the next buffer
       updateBuffer();
-      
+
       if (this->fileBufferSize > 2)
       {
         // Now look for the special boundary case:
         if (this->fileBuffer.at(0) == (char)1 && lastByteZero2 && lastByteZero1)
         {
-          // Found a start code - the 1 byte is here and the two (or three) 0 bytes were in the last buffer
-          startCodeFound = true;
+          // Found a start code - the 1 byte is here and the two (or three) 0 bytes were in the last
+          // buffer
+          startCodeFound   = true;
           nextStartCodePos = lastByteZero0 ? -3 : -2;
           this->lastReturnArray.chop(lastByteZero0 ? 3 : 2);
         }
-        else if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)1 && lastByteZero2)
+        else if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)1 &&
+                 lastByteZero2)
         {
-          // Found a start code - the 01 bytes are here and the one (or two) 0 bytes were in the last buffer
-          startCodeFound = true;
+          // Found a start code - the 01 bytes are here and the one (or two) 0 bytes were in the
+          // last buffer
+          startCodeFound   = true;
           nextStartCodePos = lastByteZero1 ? -2 : -1;
           this->lastReturnArray.chop(lastByteZero0 ? 1 : 1);
         }
-        else if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 && this->fileBuffer.at(2) == (char)1)
+        else if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 &&
+                 this->fileBuffer.at(2) == (char)1)
         {
           // Found a start code - the 001 bytes are here. Check the last byte of the last buffer
-          startCodeFound = true;
+          startCodeFound   = true;
           nextStartCodePos = lastByteZero2 ? -1 : 0;
           if (lastByteZero2)
             this->lastReturnArray.chop(1);
@@ -179,21 +195,24 @@ QByteArray FileSourceAnnexBFile::getNextNALUnit(bool getLastDataAgain, pairUint6
   if (startEndPosInFile)
     startEndPosInFile->second = this->bufferStartPosInFile + nextStartCodePos;
   if (nextStartCodePos > int(this->posInBuffer))
-    this->lastReturnArray += this->fileBuffer.mid(this->posInBuffer, nextStartCodePos - this->posInBuffer);
+    this->lastReturnArray +=
+        this->fileBuffer.mid(this->posInBuffer, nextStartCodePos - this->posInBuffer);
   this->posInBuffer = nextStartCodePos;
-  DEBUG_ANNEXBFILE("FileSourceAnnexBFile::getNextNALUnit start code found - ret size " << this->lastReturnArray.size());
+  DEBUG_ANNEXBFILE("FileSourceAnnexBFile::getNextNALUnit start code found - ret size "
+                   << this->lastReturnArray.size());
   return this->lastReturnArray;
 }
 
 QByteArray FileSourceAnnexBFile::getFrameData(pairUint64 startEndFilePos)
 {
   // Get all data for the frame (all NAL units in the raw format with start codes).
-  // We don't need to convert the format to the mp4 ISO format. The ffmpeg decoder can also accept raw NAL units.
-  // When the extradata is set as raw NAL units, the AVPackets must also be raw NAL units.
+  // We don't need to convert the format to the mp4 ISO format. The ffmpeg decoder can also accept
+  // raw NAL units. When the extradata is set as raw NAL units, the AVPackets must also be raw NAL
+  // units.
   QByteArray retArray;
-  
+
   auto start = startEndFilePos.first;
-  auto end = startEndFilePos.second;
+  auto end   = startEndFilePos.second;
 
   // Seek the source file to the start position
   this->seek(start);
@@ -228,9 +247,10 @@ bool FileSourceAnnexBFile::updateBuffer()
   this->bufferStartPosInFile += this->fileBufferSize;
 
   this->fileBufferSize = srcFile.read(this->fileBuffer.data(), BUFFERSIZE);
-  this->posInBuffer = 0;
+  this->posInBuffer    = 0;
 
-  DEBUG_ANNEXBFILE("FileSourceAnnexBFile::updateBuffer this->fileBufferSize " << this->fileBufferSize);
+  DEBUG_ANNEXBFILE("FileSourceAnnexBFile::updateBuffer this->fileBufferSize "
+                   << this->fileBufferSize);
   return (this->fileBufferSize > 0);
 }
 
@@ -247,16 +267,18 @@ bool FileSourceAnnexBFile::seek(int64_t pos)
     // The file is empty of there was an error reading from the file.
     return false;
   this->bufferStartPosInFile = pos;
-  this->posInBuffer = 0;
+  this->posInBuffer          = 0;
 
   if (pos == 0)
     this->seekToFirstNAL();
   else
   {
     // Check if we are at a start code position (001 or 0001)
-    if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 && this->fileBuffer.at(2) == (char)0 && this->fileBuffer.at(3) == (char)1)
+    if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 &&
+        this->fileBuffer.at(2) == (char)0 && this->fileBuffer.at(3) == (char)1)
       return true;
-    if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 && this->fileBuffer.at(2) == (char)1)
+    if (this->fileBuffer.at(0) == (char)0 && this->fileBuffer.at(1) == (char)0 &&
+        this->fileBuffer.at(2) == (char)1)
       return true;
 
     DEBUG_ANNEXBFILE("FileSourceAnnexBFile::seek could not find start code at seek position");
diff --git a/YUViewLib/src/filesource/FileSourceAnnexBFile.h b/YUViewLib/src/filesource/FileSourceAnnexBFile.h
index a2d486cb0..bcb007d57 100644
--- a/YUViewLib/src/filesource/FileSourceAnnexBFile.h
+++ b/YUViewLib/src/filesource/FileSourceAnnexBFile.h
@@ -47,10 +47,9 @@ class FileSourceAnnexBFile : public FileSource
 
 public:
   FileSourceAnnexBFile();
-  FileSourceAnnexBFile(const QString &filePath) : FileSourceAnnexBFile() { openFile(filePath); }
-  ~FileSourceAnnexBFile(){};
+  FileSourceAnnexBFile(const std::filesystem::path &filePath);
 
-  bool openFile(const QString &filePath) override;
+  bool openFile(const std::filesystem::path &filePath) override;
 
   // Is the file at the end?
   bool atEnd() const override;
diff --git a/YUViewLib/src/filesource/FileSourceFFmpegFile.cpp b/YUViewLib/src/filesource/FileSourceFFmpegFile.cpp
index 6776e8d92..4feb935dd 100644
--- a/YUViewLib/src/filesource/FileSourceFFmpegFile.cpp
+++ b/YUViewLib/src/filesource/FileSourceFFmpegFile.cpp
@@ -267,7 +267,8 @@ ByteVector FileSourceFFmpegFile::getLhvCData()
       continue;
 
     const auto boxSize = getBoxSize(lhvcPos - 4);
-    if (boxSize == 0 || boxSize > std::distance(lhvcPos, rawFileData.end()))
+    if (boxSize == 0 ||
+        boxSize > static_cast<std::uint64_t>(std::distance(lhvcPos, rawFileData.end())))
       continue;
 
     // We just return the payload without the box size or the "lhvC" tag
@@ -399,8 +400,8 @@ FileSourceFFmpegFile::~FileSourceFFmpegFile()
     this->ff.freePacket(this->currentPacket);
 }
 
-bool FileSourceFFmpegFile::openFile(const QString &       filePath,
-                                    QWidget *             mainWindow,
+bool FileSourceFFmpegFile::openFile(const QString        &filePath,
+                                    QWidget              *mainWindow,
                                     FileSourceFFmpegFile *other,
                                     bool                  parseFile)
 {
diff --git a/YUViewLib/src/parser/AV1/ParserAV1OBU.h b/YUViewLib/src/parser/AV1/ParserAV1OBU.h
index c044595a2..bc0426da1 100644
--- a/YUViewLib/src/parser/AV1/ParserAV1OBU.h
+++ b/YUViewLib/src/parser/AV1/ParserAV1OBU.h
@@ -50,13 +50,13 @@ class ParserAV1OBU : public Parser
   ~ParserAV1OBU() {}
 
   std::pair<size_t, std::string> parseAndAddOBU(int                       obuID,
-                                                ByteVector &              data,
+                                                ByteVector               &data,
                                                 std::shared_ptr<TreeItem> parent,
                                                 pairUint64 obuStartEndPosFile = pairUint64(-1, -1));
 
   // So far, we only parse AV1 Obu files from the AVFormat parser so we don't need this (yet).
   // When parsing of raw OBU files is added, we will need this.
-  bool runParsingOfFile(QString) override
+  bool runParsingOfFile(const std::filesystem::path &) override
   {
     assert(false);
     return false;
diff --git a/YUViewLib/src/parser/AVFormat/ParserAVFormat.cpp b/YUViewLib/src/parser/AVFormat/ParserAVFormat.cpp
index dfcc0d9d7..e0f7e22e2 100644
--- a/YUViewLib/src/parser/AVFormat/ParserAVFormat.cpp
+++ b/YUViewLib/src/parser/AVFormat/ParserAVFormat.cpp
@@ -94,7 +94,7 @@ vector<QTreeWidgetItem *> ParserAVFormat::getStreamInfo()
 
 std::string ParserAVFormat::getShortStreamDescription(const int streamIndex) const
 {
-  if (streamIndex >= this->shortStreamInfoAllStreams.size())
+  if (streamIndex >= static_cast<int>(this->shortStreamInfoAllStreams.size()))
     return {};
   return this->shortStreamInfoAllStreams.at(streamIndex);
 }
@@ -254,7 +254,7 @@ bool ParserAVFormat::parseExtradataMPEG2(const ByteVector &extradata)
 }
 
 std::map<std::string, unsigned> ParserAVFormat::parseByteVectorAnnexBStartCodes(
-    const ByteVector &                   data,
+    const ByteVector                    &data,
     const PacketDataFormat               dataFormat,
     const BitratePlotModel::BitrateEntry packetBitrateEntry,
     std::shared_ptr<TreeItem>            item)
@@ -265,7 +265,8 @@ std::map<std::string, unsigned> ParserAVFormat::parseByteVectorAnnexBStartCodes(
     return {};
   }
 
-  auto getNextNalStart = [&data, &dataFormat](ByteVector::const_iterator searchStart) {
+  auto getNextNalStart = [&data, &dataFormat](ByteVector::const_iterator searchStart)
+  {
     if (dataFormat == PacketDataFormat::RawNAL)
     {
       if (std::distance(searchStart, data.end()) <= 3)
@@ -352,7 +353,8 @@ bool ParserAVFormat::parseAVPacket(unsigned         packetID,
 
   auto timeBase = timeBaseAllStreams[packet.getStreamIndex()];
 
-  auto formatTimestamp = [](int64_t timestamp, AVRational timebase) -> std::string {
+  auto formatTimestamp = [](int64_t timestamp, AVRational timebase) -> std::string
+  {
     std::ostringstream ss;
     ss << timestamp << " (";
     if (timestamp < 0)
@@ -574,11 +576,12 @@ bool ParserAVFormat::parseAVPacket(unsigned         packetID,
   return true;
 }
 
-bool ParserAVFormat::runParsingOfFile(QString compressedFilePath)
+bool ParserAVFormat::runParsingOfFile(const std::filesystem::path &compressedFilePath)
 {
   // Open the file but don't parse it yet.
   FileSourceFFmpegFile ffmpegFile;
-  if (!ffmpegFile.openFile(compressedFilePath, nullptr, nullptr, false))
+  if (!ffmpegFile.openFile(
+          QString::fromStdString(compressedFilePath.string()), nullptr, nullptr, false))
   {
     emit backgroundParsingDone("Error opening the ffmpeg file.");
     return false;
diff --git a/YUViewLib/src/parser/AVFormat/ParserAVFormat.h b/YUViewLib/src/parser/AVFormat/ParserAVFormat.h
index 1a3265621..8ae37f4d3 100644
--- a/YUViewLib/src/parser/AVFormat/ParserAVFormat.h
+++ b/YUViewLib/src/parser/AVFormat/ParserAVFormat.h
@@ -63,7 +63,7 @@ class ParserAVFormat : public Parser
   std::string getShortStreamDescription(const int streamIndex) const override;
 
   // This function can run in a separate thread
-  bool runParsingOfFile(QString compressedFilePath) override;
+  bool runParsingOfFile(const std::filesystem::path &compressedFilePath) override;
 
   int getVideoStreamIndex() override { return videoStreamIndex; }
 
diff --git a/YUViewLib/src/parser/Parser.h b/YUViewLib/src/parser/Parser.h
index 830632d2c..543c0832d 100644
--- a/YUViewLib/src/parser/Parser.h
+++ b/YUViewLib/src/parser/Parser.h
@@ -37,6 +37,7 @@
 #include <QString>
 #include <QTreeWidgetItem>
 
+#include <filesystem>
 #include <memory>
 
 #include "common/BitratePlotModel.h"
@@ -62,8 +63,8 @@ class Parser : public QObject
   virtual ~Parser() = 0;
 
   QAbstractItemModel *getPacketItemModel() { return streamIndexFilter.get(); }
-  BitratePlotModel *  getBitratePlotModel() { return bitratePlotModel.get(); }
-  HRDPlotModel *      getHRDPlotModel();
+  BitratePlotModel   *getBitratePlotModel() { return bitratePlotModel.get(); }
+  HRDPlotModel       *getHRDPlotModel();
   void                setRedirectPlotModel(HRDPlotModel *plotModel);
 
   void updateNumberModelItems();
@@ -74,7 +75,7 @@ class Parser : public QObject
   virtual unsigned int              getNrStreams()  = 0;
 
   // For parsing files in the background (threading) in the bitstream analysis dialog:
-  virtual bool runParsingOfFile(QString fileName) = 0;
+  virtual bool runParsingOfFile(const std::filesystem::path &fileName) = 0;
   int          getParsingProgressPercent() { return progressPercentValue; }
   void         setAbortParsing() { cancelBackgroundParser = true; }
 
@@ -114,7 +115,7 @@ class Parser : public QObject
 
 private:
   std::unique_ptr<HRDPlotModel> hrdPlotModel;
-  HRDPlotModel *                redirectPlotModel{nullptr};
+  HRDPlotModel                 *redirectPlotModel{nullptr};
 };
 
 } // namespace parser
diff --git a/YUViewLib/src/parser/ParserAnnexB.cpp b/YUViewLib/src/parser/ParserAnnexB.cpp
index 80b842dc7..21f669b29 100644
--- a/YUViewLib/src/parser/ParserAnnexB.cpp
+++ b/YUViewLib/src/parser/ParserAnnexB.cpp
@@ -54,8 +54,7 @@ std::string ParserAnnexB::getShortStreamDescription(const int) const
 {
   std::ostringstream info;
   info << "Video";
-  auto frameSize = this->getSequenceSizeSamples();
-  if (frameSize.isValid())
+  if (const auto frameSize = this->getSequenceSizeSamples())
     info << " " << frameSize;
   return info.str();
 }
@@ -85,7 +84,7 @@ bool ParserAnnexB::addFrameToList(int                       poc,
   return true;
 }
 
-void ParserAnnexB::logNALSize(const ByteVector &        data,
+void ParserAnnexB::logNALSize(const ByteVector         &data,
                               std::shared_ptr<TreeItem> root,
                               std::optional<pairUint64> nalStartEndPos)
 {
@@ -154,7 +153,7 @@ bool ParserAnnexB::parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file,
 {
   DEBUG_ANNEXB("ParserAnnexB::parseAnnexBFile");
 
-  auto                             maxPos = file->getFileSize();
+  const auto                       fileSize = file->getFileSize();
   std::unique_ptr<QProgressDialog> progressDialog;
   int                              curPercentValue = 0;
   if (mainWindow)
@@ -171,8 +170,8 @@ bool ParserAnnexB::parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file,
     progressDialog->setWindowModality(Qt::WindowModal);
   }
 
-  stream_info.file_size = file->getFileSize();
-  stream_info.parsing   = true;
+  this->streamInfo.file_size = file->getFileSize().value_or(0);
+  this->streamInfo.parsing   = true;
   emit streamInfoUpdated();
 
   // Just push all NAL units from the annexBFile into the annexBParser
@@ -185,8 +184,8 @@ bool ParserAnnexB::parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file,
   {
     // Update the progress dialog
     int64_t pos = file->pos();
-    if (stream_info.file_size > 0)
-      progressPercentValue = functions::clip((int)(pos * 100 / stream_info.file_size), 0, 100);
+    if (this->streamInfo.file_size > 0)
+      progressPercentValue = functions::clip((int)(pos * 100 / this->streamInfo.file_size), 0, 100);
 
     try
     {
@@ -225,8 +224,8 @@ bool ParserAnnexB::parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file,
         return false;
 
       int newPercentValue = 0;
-      if (maxPos > 0)
-        newPercentValue = functions::clip(int((file->pos() - maxPos) * 100 / maxPos), 0, 100);
+      if (fileSize)
+        newPercentValue = functions::clip(int((file->pos() - *fileSize) * 100 / *fileSize), 0, 100);
       if (newPercentValue != curPercentValue)
       {
         progressDialog->setValue(newPercentValue);
@@ -272,28 +271,28 @@ bool ParserAnnexB::parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file,
   if (packetModel)
     emit modelDataUpdated();
 
-  stream_info.parsing      = false;
-  stream_info.nr_nal_units = nalID;
-  stream_info.nr_frames    = unsigned(this->frameListCodingOrder.size());
+  this->streamInfo.parsing    = false;
+  this->streamInfo.nrNalUnits = nalID;
+  this->streamInfo.nrFrames   = unsigned(this->frameListCodingOrder.size());
   emit streamInfoUpdated();
   emit backgroundParsingDone("");
 
   return !cancelBackgroundParser;
 }
 
-bool ParserAnnexB::runParsingOfFile(QString compressedFilePath)
+bool ParserAnnexB::runParsingOfFile(const std::filesystem::path &compressedFilePath)
 {
   DEBUG_ANNEXB("playlistItemCompressedVideo::runParsingOfFile");
   auto file = std::make_unique<FileSourceAnnexBFile>(compressedFilePath);
   return this->parseAnnexBFile(file);
 }
 
-vector<QTreeWidgetItem *> ParserAnnexB::stream_info_type::getStreamInfo()
+vector<QTreeWidgetItem *> ParserAnnexB::createTreeItemsFromStreamInfo() const
 {
   vector<QTreeWidgetItem *> infoList;
-  infoList.push_back(
-      new QTreeWidgetItem(QStringList() << "File size" << QString::number(file_size)));
-  if (parsing)
+  infoList.push_back(new QTreeWidgetItem(
+      QStringList() << "File size" << QString::number(this->streamInfo.file_size)));
+  if (this->streamInfo.parsing)
   {
     infoList.push_back(new QTreeWidgetItem(QStringList() << "Number NAL units"
                                                          << "Parsing..."));
@@ -302,10 +301,10 @@ vector<QTreeWidgetItem *> ParserAnnexB::stream_info_type::getStreamInfo()
   }
   else
   {
-    infoList.push_back(
-        new QTreeWidgetItem(QStringList() << "Number NAL units" << QString::number(nr_nal_units)));
-    infoList.push_back(
-        new QTreeWidgetItem(QStringList() << "Number Frames" << QString::number(nr_frames)));
+    infoList.push_back(new QTreeWidgetItem(
+        QStringList() << "Number NAL units" << QString::number(this->streamInfo.nrNalUnits)));
+    infoList.push_back(new QTreeWidgetItem(
+        QStringList() << "Number Frames" << QString::number(this->streamInfo.nrFrames)));
   }
 
   return infoList;
diff --git a/YUViewLib/src/parser/ParserAnnexB.h b/YUViewLib/src/parser/ParserAnnexB.h
index 2f0d45fbc..1104403c8 100644
--- a/YUViewLib/src/parser/ParserAnnexB.h
+++ b/YUViewLib/src/parser/ParserAnnexB.h
@@ -58,8 +58,8 @@ class ParserAnnexB : public Parser
   Q_OBJECT
 
 public:
-  ParserAnnexB(QObject *parent = nullptr) : Parser(parent){};
-  virtual ~ParserAnnexB(){};
+  ParserAnnexB(QObject *parent = nullptr) : Parser(parent) {};
+  virtual ~ParserAnnexB() {};
 
   // How many POC's have been found in the file
   size_t getNumberPOCs() const { return this->frameListCodingOrder.size(); }
@@ -67,7 +67,7 @@ class ParserAnnexB : public Parser
   // Clear all knowledge about the bitstream.
   void clearData();
 
-  vector<QTreeWidgetItem *> getStreamInfo() override { return this->stream_info.getStreamInfo(); }
+  vector<QTreeWidgetItem *> getStreamInfo() override { return createTreeItemsFromStreamInfo(); }
   unsigned int              getNrStreams() override { return 1; }
   std::string               getShortStreamDescription(const int streamIndex) const override;
 
@@ -89,7 +89,7 @@ class ParserAnnexB : public Parser
     std::optional<BitratePlotModel::BitrateEntry> bitrateEntry;
   };
   virtual ParseResult parseAndAddNALUnit(int                                           nalID,
-                                         const ByteVector &                            data,
+                                         const ByteVector                             &data,
                                          std::optional<BitratePlotModel::BitrateEntry> bitrateEntry,
                                          std::optional<pairUint64> nalStartEndPosFile = {},
                                          std::shared_ptr<TreeItem> parent = nullptr) = 0;
@@ -117,8 +117,8 @@ class ParserAnnexB : public Parser
     FrameIndexDisplayOrder frameIndex{};
     unsigned               frameDistanceInCodingOrder{};
   };
-  auto getClosestSeekPoint(FrameIndexDisplayOrder targetFrame, FrameIndexDisplayOrder currentFrame)
-      -> SeekPointInfo;
+  auto getClosestSeekPoint(FrameIndexDisplayOrder targetFrame,
+                           FrameIndexDisplayOrder currentFrame) -> SeekPointInfo;
 
   // Get the parameters sets as extradata. The format of this depends on the underlying codec.
   virtual QByteArray getExtradata() = 0;
@@ -131,7 +131,7 @@ class ParserAnnexB : public Parser
   bool parseAnnexBFile(std::unique_ptr<FileSourceAnnexBFile> &file, QWidget *mainWindow = nullptr);
 
   // Called from the bitstream analyzer. This function can run in a background process.
-  bool runParsingOfFile(QString compressedFilePath) override;
+  bool runParsingOfFile(const std::filesystem::path &compressedFilePath) override;
 
 protected:
   struct AnnexBFrame
@@ -152,23 +152,22 @@ class ParserAnnexB : public Parser
                       bool                      randomAccessPoint,
                       unsigned                  layerID);
 
-  static void logNALSize(const ByteVector &        data,
+  static void logNALSize(const ByteVector         &data,
                          std::shared_ptr<TreeItem> root,
                          std::optional<pairUint64> nalStartEndPos);
 
   std::optional<int> pocOfFirstRandomAccessFrame{};
 
   // Save general information about the file here
-  struct stream_info_type
+  struct StreamInfo
   {
-    vector<QTreeWidgetItem *> getStreamInfo();
-
-    size_t   file_size;
-    unsigned nr_nal_units{0};
-    unsigned nr_frames{0};
+    int64_t  file_size{};
+    unsigned nrNalUnits{0};
+    unsigned nrFrames{0};
     bool     parsing{false};
   };
-  stream_info_type stream_info;
+  StreamInfo                streamInfo{};
+  vector<QTreeWidgetItem *> createTreeItemsFromStreamInfo() const;
 
   int getFramePOC(FrameIndexDisplayOrder frameIdx);
 
diff --git a/YUViewLib/src/playlistitem/playlistItem.h b/YUViewLib/src/playlistitem/playlistItem.h
index f43e0b226..c5f746363 100644
--- a/YUViewLib/src/playlistitem/playlistItem.h
+++ b/YUViewLib/src/playlistitem/playlistItem.h
@@ -32,7 +32,7 @@
 
 #pragma once
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 #include <common/SaveUi.h>
 #include <common/Typedef.h>
 #include <common/YUViewDomElement.h>
@@ -227,7 +227,7 @@ class playlistItem : public QObject, public QTreeWidgetItem
   virtual unsigned int getCachingFrameSize() const { return 0; }
   // Remove the frame with the given index from the cache.
   virtual void removeFrameFromCache(int) {}
-  virtual void removeAllFramesFromCache(){};
+  virtual void removeAllFramesFromCache() {};
 
   // ----- Detection of source/file change events -----
 
diff --git a/YUViewLib/src/playlistitem/playlistItemCompressedVideo.cpp b/YUViewLib/src/playlistitem/playlistItemCompressedVideo.cpp
index 88864274f..6d7a93754 100644
--- a/YUViewLib/src/playlistitem/playlistItemCompressedVideo.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemCompressedVideo.cpp
@@ -38,6 +38,7 @@
 
 #include <inttypes.h>
 
+#include <common/Formatting.h>
 #include <common/Functions.h>
 #include <common/FunctionsGui.h>
 #include <common/YUViewDomElement.h>
@@ -142,9 +143,10 @@ playlistItemCompressedVideo::playlistItemCompressedVideo(const QString &compress
   {
     // Open file
     DEBUG_COMPRESSED("playlistItemCompressedVideo::playlistItemCompressedVideo Open annexB file");
-    this->inputFileAnnexBLoading = std::make_unique<FileSourceAnnexBFile>(compressedFilePath);
+    const auto filePath = std::filesystem::path(compressedFilePath.toStdString());
+    this->inputFileAnnexBLoading = std::make_unique<FileSourceAnnexBFile>(filePath);
     if (this->cachingEnabled)
-      this->inputFileAnnexBCaching = std::make_unique<FileSourceAnnexBFile>(compressedFilePath);
+      this->inputFileAnnexBCaching = std::make_unique<FileSourceAnnexBFile>(filePath);
     // inputFormatType a parser
     if (this->inputFormat == InputFormat::AnnexBHEVC)
     {
@@ -468,49 +470,50 @@ InfoData playlistItemCompressedVideo::getInfo() const
   // At first append the file information part (path, date created, file size...)
   // info.items.append(loadingDecoder->getFileInfoList());
 
-  info.items.append(InfoItem(
-      "Reader", QString::fromStdString(std::string(InputFormatMapper.getName(this->inputFormat)))));
+  info.items.append(InfoItem("Reader", InputFormatMapper.getName(this->inputFormat)));
   if (this->inputFileFFmpegLoading)
   {
-    auto l = this->inputFileFFmpegLoading->getLibraryPaths();
-    if (l.length() % 3 == 0)
+    auto libraryPaths = this->inputFileFFmpegLoading->getLibraryPaths();
+    if (libraryPaths.length() % 3 == 0)
     {
-      for (int i = 0; i < l.length() / 3; i++)
-        info.items.append(InfoItem(l[i * 3], l[i * 3 + 1], l[i * 3 + 2]));
+      for (int i = 0; i < libraryPaths.length() / 3; i++)
+        info.items.append(InfoItem(libraryPaths[i * 3].toStdString(),
+                                   libraryPaths[i * 3 + 1].toStdString(),
+                                   libraryPaths[i * 3 + 2].toStdString()));
     }
   }
   if (!this->unresolvableError)
   {
-    auto videoSize = video->getFrameSize();
     info.items.append(InfoItem("Resolution",
-                               QString("%1x%2").arg(videoSize.width).arg(videoSize.height),
+                               to_string(video->getFrameSize()),
                                "The video resolution in pixel (width x height)"));
-    auto nrFrames =
+    const auto nrFrames =
         (this->properties().startEndRange.second - this->properties().startEndRange.first) + 1;
     info.items.append(
-        InfoItem("Num POCs", QString::number(nrFrames), "The number of pictures in the stream."));
+        InfoItem("Num POCs", std::to_string(nrFrames), "The number of pictures in the stream."));
     if (this->decodingEnabled)
     {
       auto l = loadingDecoder->getLibraryPaths();
       if (l.length() % 3 == 0)
       {
         for (int i = 0; i < l.length() / 3; i++)
-          info.items.append(InfoItem(l[i * 3], l[i * 3 + 1], l[i * 3 + 2]));
+          info.items.append(InfoItem(
+              l[i * 3].toStdString(), l[i * 3 + 1].toStdString(), l[i * 3 + 2].toStdString()));
       }
-      info.items.append(InfoItem("Decoder", this->loadingDecoder->getDecoderName()));
-      info.items.append(InfoItem("Decoder", this->loadingDecoder->getCodecName()));
-      info.items.append(InfoItem("Statistics",
+      info.items.append(InfoItem("Decoder", this->loadingDecoder->getDecoderName().toStdString()));
+      info.items.append(InfoItem("Decoder", this->loadingDecoder->getCodecName().toStdString()));
+      info.items.append(InfoItem("Statistics"sv,
                                  this->loadingDecoder->statisticsSupported() ? "Yes" : "No",
                                  "Is the decoder able to provide internals (statistics)?"));
       info.items.append(
-          InfoItem("Stat Parsing",
+          InfoItem("Stat Parsing"sv,
                    this->loadingDecoder->statisticsEnabled() ? "Yes" : "No",
                    "Are the statistics of the sequence currently extracted from the stream?"));
     }
   }
   if (this->decoderEngine == DecoderEngine::FFMpeg)
     info.items.append(
-        InfoItem("FFMpeg Log", "Show FFmpeg Log", "Show the log messages from FFmpeg.", true, 0));
+        InfoItem("FFMpeg Log"sv, "Show FFmpeg Log", "Show the log messages from FFmpeg."));
 
   return info;
 }
diff --git a/YUViewLib/src/playlistitem/playlistItemDifference.cpp b/YUViewLib/src/playlistitem/playlistItemDifference.cpp
index f8a524e1d..0918d4018 100644
--- a/YUViewLib/src/playlistitem/playlistItemDifference.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemDifference.cpp
@@ -75,9 +75,9 @@ InfoData playlistItemDifference::getInfo() const
   InfoData info("Difference Info");
 
   if (childCount() >= 1)
-    info.items.append(InfoItem(QString("File 1"), getChildPlaylistItem(0)->properties().name));
+    info.items.append(InfoItem("File 1", getChildPlaylistItem(0)->properties().name.toStdString()));
   if (childCount() >= 2)
-    info.items.append(InfoItem(QString("File 2"), getChildPlaylistItem(1)->properties().name));
+    info.items.append(InfoItem("File 2", getChildPlaylistItem(1)->properties().name.toStdString()));
 
   // Report the position of the first difference in coding order
   difference.reportFirstDifferencePosition(info.items);
diff --git a/YUViewLib/src/playlistitem/playlistItemImageFile.cpp b/YUViewLib/src/playlistitem/playlistItemImageFile.cpp
index 40195fa58..fa2e8491b 100644
--- a/YUViewLib/src/playlistitem/playlistItemImageFile.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemImageFile.cpp
@@ -37,6 +37,7 @@
 #include <QSettings>
 #include <QUrl>
 
+#include <common/Formatting.h>
 #include <common/FunctionsGui.h>
 #include <filesource/FileSource.h>
 
@@ -101,7 +102,7 @@ void playlistItemImageFile::savePlaylist(QDomElement &root, const QDir &playlist
  */
 playlistItemImageFile *
 playlistItemImageFile::newplaylistItemImageFile(const YUViewDomElement &root,
-                                                const QString &         playlistFilePath)
+                                                const QString          &playlistFilePath)
 {
   // Parse the DOM element. It should have all values of a playlistItemImageFile
   auto absolutePath = root.findChildValue("absolutePath");
@@ -185,20 +186,20 @@ InfoData playlistItemImageFile::getInfo() const
 {
   InfoData info("Image Info");
 
-  info.items.append(InfoItem("File", this->properties().name));
+  info.items.append(InfoItem("File", this->properties().name.toStdString()));
   if (frame.isFormatValid())
   {
-    auto frameSize = frame.getFrameSize();
     info.items.append(InfoItem("Resolution",
-                               QString("%1x%2").arg(frameSize.width).arg(frameSize.height),
+                               to_string(frame.getFrameSize()),
                                "The video resolution in pixel (width x height)"));
     info.items.append(InfoItem(
-        "Bit depth", QString::number(frame.getImageBitDepth()), "The bit depth of the image."));
+        "Bit depth", std::to_string(frame.getImageBitDepth()), "The bit depth of the image."));
   }
   else if (isLoading())
-    info.items.append(InfoItem("Status", "Loading...", "The image is being loaded. Please wait."));
+    info.items.append(
+        InfoItem("Status"sv, "Loading...", "The image is being loaded. Please wait."));
   else
-    info.items.append(InfoItem("Status", "Error", "There was an error loading the image."));
+    info.items.append(InfoItem("Status"sv, "Error", "There was an error loading the image."));
 
   return info;
 }
diff --git a/YUViewLib/src/playlistitem/playlistItemImageFileSequence.cpp b/YUViewLib/src/playlistitem/playlistItemImageFileSequence.cpp
index b797de2a7..b5491e98d 100644
--- a/YUViewLib/src/playlistitem/playlistItemImageFileSequence.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemImageFileSequence.cpp
@@ -36,6 +36,7 @@
 #include <QSettings>
 #include <QUrl>
 
+#include <common/Formatting.h>
 #include <common/FunctionsGui.h>
 #include <filesource/FileSource.h>
 
@@ -91,7 +92,7 @@ bool playlistItemImageFileSequence::isImageSequence(const QString &filePath)
   return files.count() > 1;
 }
 
-void playlistItemImageFileSequence::fillImageFileList(QStringList &  imageFiles,
+void playlistItemImageFileSequence::fillImageFileList(QStringList   &imageFiles,
                                                       const QString &filePath)
 {
   // See if the filename ends with a number
@@ -170,19 +171,17 @@ InfoData playlistItemImageFileSequence::getInfo() const
 
   if (this->video->isFormatValid())
   {
-    auto videoSize = this->video->getFrameSize();
-    auto nrFrames  = this->imageFiles.size();
-    info.items.append(InfoItem("Num Frames", QString::number(nrFrames)));
+    info.items.append(InfoItem("Num Frames", std::to_string(this->imageFiles.size())));
     info.items.append(InfoItem("Resolution",
-                               QString("%1x%2").arg(videoSize.width).arg(videoSize.height),
+                               to_string(this->video->getFrameSize()),
                                "The video resolution in pixels (width x height)"));
   }
   else
-    info.items.append(InfoItem("Status", "Error", "There was an error loading the image."));
+    info.items.append(InfoItem("Status"sv, "Error", "There was an error loading the image."));
 
   if (loadPlaylistFrameMissing)
     info.items.append(
-        InfoItem("Warning",
+        InfoItem("Warning"sv,
                  "Frames missing",
                  "At least one frame could not be found when loading from playlist."));
 
diff --git a/YUViewLib/src/playlistitem/playlistItemOverlay.cpp b/YUViewLib/src/playlistitem/playlistItemOverlay.cpp
index e3f5438b9..2966e29fa 100644
--- a/YUViewLib/src/playlistitem/playlistItemOverlay.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemOverlay.cpp
@@ -39,8 +39,8 @@
 #include <cmath>
 #include <limits>
 
-#include <common/FunctionsGui.h>
 #include <common/EnumMapper.h>
+#include <common/FunctionsGui.h>
 
 #define PLAYLISTITEMOVERLAY_DEBUG 0
 #if PLAYLISTITEMOVERLAY_DEBUG && !NDEBUG
@@ -60,8 +60,13 @@ constexpr EnumMapper<OverlayLayoutMode, 3>
                             std::make_pair(OverlayLayoutMode::Arange, "Average"sv),
                             std::make_pair(OverlayLayoutMode::Custom, "Custom"sv));
 
+std::string to_string(const QSize &size)
+{
+  return "(" + std::to_string(size.width()) + "," + std::to_string(size.height()) + ")";
 }
 
+} // namespace
+
 playlistItemOverlay::playlistItemOverlay() : playlistItemContainer("Overlay Item")
 {
   this->setIcon(0, functionsGui::convertIcon(":img_overlay.png"));
@@ -84,18 +89,16 @@ InfoData playlistItemOverlay::getInfo() const
   InfoData info("Overlay Info");
 
   // Add the size of this playlistItemOverlay
-  info.items.append(
-      InfoItem("Overlay Size", QString("(%1,%2)").arg(getSize().width()).arg(getSize().height())));
+  const auto size = this->getSize();
+  info.items.append(InfoItem("Overlay Size", to_string(size)));
 
   // Add the sizes of all child items
   for (int i = 0; i < this->childCount(); i++)
   {
     if (auto childItem = getChildPlaylistItem(i))
     {
-      auto childSize = childItem->getSize();
-      info.items.append(
-          InfoItem(QString("Item %1 size").arg(i),
-                   QString("(%1,%2)").arg(childSize.width()).arg(childSize.height())));
+      const auto childSize = childItem->getSize();
+      info.items.append(InfoItem("Item " + std::to_string(i) + " size", to_string(childSize)));
     }
   }
   return info;
diff --git a/YUViewLib/src/playlistitem/playlistItemRawFile.cpp b/YUViewLib/src/playlistitem/playlistItemRawFile.cpp
index 0362cf1a5..08738e855 100644
--- a/YUViewLib/src/playlistitem/playlistItemRawFile.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemRawFile.cpp
@@ -81,7 +81,7 @@ playlistItemRawFile::playlistItemRawFile(const QString &rawFilePath,
   this->prop.isFileSource          = true;
   this->prop.propertiesWidgetTitle = "Raw File Properties";
 
-  this->dataSource.openFile(rawFilePath);
+  this->dataSource.openFile(std::filesystem::path(rawFilePath.toStdString()));
 
   if (!this->dataSource.isOk())
   {
@@ -135,7 +135,7 @@ playlistItemRawFile::playlistItemRawFile(const QString &rawFilePath,
       // Load 24883200 bytes from the input and try to get the format from the correlation.
       QByteArray rawData;
       this->dataSource.readBytes(rawData, 0, 24883200);
-      this->video->setFormatFromCorrelation(rawData, this->dataSource.getFileSize());
+      this->video->setFormatFromCorrelation(rawData, this->dataSource.getFileSize().value_or(-1));
     }
   }
   else
@@ -189,7 +189,7 @@ void playlistItemRawFile::updateStartEndRange()
       this->prop.startEndRange = indexRange(-1, -1);
       return;
     }
-    nrFrames = this->dataSource.getFileSize() / bpf;
+    nrFrames = this->dataSource.getFileSize().value_or(0) / bpf;
   }
 
   this->prop.startEndRange = indexRange(0, std::max(nrFrames - 1, 0));
@@ -200,13 +200,13 @@ InfoData playlistItemRawFile::getInfo() const
   InfoData info((rawFormat == video::RawFormat::YUV) ? "YUV File Info" : "RGB File Info");
 
   // At first append the file information part (path, date created, file size...)
-  info.items.append(this->dataSource.getFileInfoList());
+  for (const auto &infoItem : this->dataSource.getFileInfoList())
+    info.items.append(infoItem);
 
-  auto nrFrames =
+  const auto nrFrames =
       (this->properties().startEndRange.second - this->properties().startEndRange.first + 1);
-  info.items.append(InfoItem("Num Frames", QString::number(nrFrames)));
-  info.items.append(
-      InfoItem("Bytes per Frame", QString("%1").arg(this->video->getBytesPerFrame())));
+  info.items.append(InfoItem("Num Frames", std::to_string(nrFrames)));
+  info.items.append(InfoItem("Bytes per Frame", std::to_string(this->video->getBytesPerFrame())));
 
   if (this->dataSource.isOk() && this->video->isFormatValid() && !this->isY4MFile)
   {
@@ -215,12 +215,14 @@ InfoData playlistItemRawFile::getInfo() const
     // selected YUV format / width / height ...
 
     auto bpf = this->video->getBytesPerFrame();
-    if ((this->dataSource.getFileSize() % bpf) != 0)
+    if (const auto fileSize = this->dataSource.getFileSize())
     {
-      // Add a warning
-      info.items.append(InfoItem(
-          "Warning", "The file size and the given video size and/or raw format do not match."));
+      if ((*fileSize % bpf) != 0)
+        info.items.append(InfoItem(
+            "Warning"sv, "The file size and the given video size and/or raw format do not match."));
     }
+    else
+      info.items.append(InfoItem("Warning"sv, "Could not obtain file size from input."));
   }
 
   return info;
@@ -447,7 +449,9 @@ bool playlistItemRawFile::parseY4MFile()
 
 void playlistItemRawFile::setFormatFromFileName()
 {
-  const auto fileFormat = guessFormatFromFilename(this->dataSource.getFileInfo());
+  const QFileInfo fileInfo(QString::fromStdString(this->dataSource.getAbsoluteFilePath()));
+
+  const auto fileFormat = guessFormatFromFilename(fileInfo);
   if (fileFormat.frameSize.isValid())
   {
     this->video->setFrameSize(fileFormat.frameSize);
@@ -458,8 +462,8 @@ void playlistItemRawFile::setFormatFromFileName()
                                           fileFormat.bitDepth,
                                           fileFormat.packed ? video::DataLayout::Packed
                                                             : video::DataLayout::Planar,
-                                          dataSource.getFileSize(),
-                                          dataSource.getFileInfo());
+                                          this->dataSource.getFileSize().value_or(-1),
+                                          fileInfo);
     if (fileFormat.frameRate != -1)
       this->prop.frameRate = fileFormat.frameRate;
   }
@@ -490,9 +494,10 @@ void playlistItemRawFile::createPropertiesWidget()
 
 void playlistItemRawFile::savePlaylist(QDomElement &root, const QDir &playlistDir) const
 {
-  QUrl fileURL(dataSource.getAbsoluteFilePath());
+  QUrl fileURL(QString::fromStdString(dataSource.getAbsoluteFilePath()));
   fileURL.setScheme("file");
-  auto relativePath = playlistDir.relativeFilePath(dataSource.getAbsoluteFilePath());
+  auto relativePath =
+      playlistDir.relativeFilePath(QString::fromStdString(dataSource.getAbsoluteFilePath()));
 
   auto d = YUViewDomElement(root.ownerDocument().createElement("playlistItemRawFile"));
 
@@ -589,7 +594,7 @@ void playlistItemRawFile::getSupportedFileExtensions(QStringList &allExtensions,
 void playlistItemRawFile::reloadItemSource()
 {
   // Reopen the file
-  this->dataSource.openFile(this->properties().name);
+  this->dataSource.openFile(this->properties().name.toStdString());
   if (!this->dataSource.isOk())
     // Opening the file failed.
     return;
diff --git a/YUViewLib/src/playlistitem/playlistItemResample.cpp b/YUViewLib/src/playlistitem/playlistItemResample.cpp
index a9e7efea1..250ea2391 100644
--- a/YUViewLib/src/playlistitem/playlistItemResample.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemResample.cpp
@@ -71,7 +71,7 @@ InfoData playlistItemResample::getInfo() const
 
   if (this->childCount() >= 1)
     info.items.append(
-        InfoItem(QString("File 1"), this->getChildPlaylistItem(0)->properties().name));
+        InfoItem("File 1", this->getChildPlaylistItem(0)->properties().name.toStdString()));
 
   return info;
 }
diff --git a/YUViewLib/src/playlistitem/playlistItemStatisticsFile.cpp b/YUViewLib/src/playlistitem/playlistItemStatisticsFile.cpp
index 8607040b5..e14c6cfbf 100644
--- a/YUViewLib/src/playlistitem/playlistItemStatisticsFile.cpp
+++ b/YUViewLib/src/playlistitem/playlistItemStatisticsFile.cpp
@@ -75,9 +75,9 @@ playlistItemStatisticsFile::playlistItemStatisticsFile(const QString &itemNameOr
   this->openStatisticsFile();
   this->statisticsUIHandler.setStatisticsData(&this->statisticsData);
 
-  connect(&this->statisticsUIHandler, &stats::StatisticUIHandler::updateItem, [this](bool redraw) {
-    emit SignalItemChanged(redraw, RECACHE_NONE);
-  });
+  connect(&this->statisticsUIHandler,
+          &stats::StatisticUIHandler::updateItem,
+          [this](bool redraw) { emit SignalItemChanged(redraw, RECACHE_NONE); });
 }
 
 playlistItemStatisticsFile::~playlistItemStatisticsFile()
@@ -96,7 +96,7 @@ InfoData playlistItemStatisticsFile::getInfo() const
     return this->file->getInfo();
 
   InfoData info("Statistics File info");
-  info.items.append(InfoItem("File", "No file loaded"));
+  info.items.append(InfoItem("File"sv, "No file loaded"));
   return info;
 }
 
@@ -296,9 +296,8 @@ void playlistItemStatisticsFile::openStatisticsFile()
   this->timer.start(1000, this);
   this->breakBackgroundAtomic.store(false);
   this->backgroundParserFuture = QtConcurrent::run(
-      [=](stats::StatisticsFileBase *file) {
-        file->readFrameAndTypePositionsFromFile(std::ref(this->breakBackgroundAtomic));
-      },
+      [=](stats::StatisticsFileBase *file)
+      { file->readFrameAndTypePositionsFromFile(std::ref(this->breakBackgroundAtomic)); },
       this->file.get());
 
   DEBUG_STAT(
diff --git a/YUViewLib/src/statistics/StatisticsFileBase.cpp b/YUViewLib/src/statistics/StatisticsFileBase.cpp
index 0c75aad61..ba6a83be8 100644
--- a/YUViewLib/src/statistics/StatisticsFileBase.cpp
+++ b/YUViewLib/src/statistics/StatisticsFileBase.cpp
@@ -37,7 +37,7 @@ namespace stats
 
 StatisticsFileBase::StatisticsFileBase(const QString &filename)
 {
-  this->file.openFile(filename);
+  this->file.openFile(filename.toStdString());
   if (!this->file.isOk())
   {
     this->errorMessage = "Error opening file " + filename;
@@ -45,25 +45,27 @@ StatisticsFileBase::StatisticsFileBase(const QString &filename)
   }
 }
 
-StatisticsFileBase::~StatisticsFileBase() { this->abortParsingDestroy = true; }
+StatisticsFileBase::~StatisticsFileBase()
+{
+  this->abortParsingDestroy = true;
+}
 
 InfoData StatisticsFileBase::getInfo() const
 {
   InfoData info("Statistics File info");
 
-  // Append the file information (path, date created, file size...)
-  info.items.append(this->file.getFileInfoList());
-  info.items.append(InfoItem("Sorted by POC", this->fileSortedByPOC ? "Yes" : "No"));
-  info.items.append(InfoItem("Parsing:", QString("%1%...").arg(this->parsingProgress, 0, 'f', 2)));
+  for (const auto &infoItem : this->file.getFileInfoList())
+    info.items.append(infoItem);
+  info.items.append(InfoItem("Sorted by POC"sv, this->fileSortedByPOC ? "Yes" : "No"));
+  info.items.append(InfoItem("Parsing:", std::to_string(this->parsingProgress) + "..."));
   if (this->blockOutsideOfFramePOC != -1)
-    info.items.append(
-        InfoItem("Warning",
-                 QString("A block in frame %1 is outside of the given size of the statistics.")
-                     .arg(this->blockOutsideOfFramePOC)));
+    info.items.append(InfoItem("Warning",
+                               "A block in frame " + std::to_string(this->blockOutsideOfFramePOC) +
+                                   " is outside of the given size of the statistics."));
   if (this->error)
-    info.items.append(InfoItem("Parsing Error:", this->errorMessage));
+    info.items.append(InfoItem("Parsing Error:", this->errorMessage.toStdString()));
 
   return info;
 }
 
-} // namespace stats
\ No newline at end of file
+} // namespace stats
diff --git a/YUViewLib/src/statistics/StatisticsFileCSV.cpp b/YUViewLib/src/statistics/StatisticsFileCSV.cpp
index 2a95df5ac..7eeeb2272 100644
--- a/YUViewLib/src/statistics/StatisticsFileCSV.cpp
+++ b/YUViewLib/src/statistics/StatisticsFileCSV.cpp
@@ -194,8 +194,9 @@ void StatisticsFileCSV::readFrameAndTypePositionsFromFile(std::atomic_bool &brea
                   this->maxPOC = poc;
 
                 // Update percent of file parsed
-                this->parsingProgress =
-                    ((double)lineBufferStartPos * 100 / (double)inputFile.getFileSize());
+                if (const auto fileSize = inputFile.getFileSize())
+                  this->parsingProgress = (static_cast<double>(lineBufferStartPos) * 100 /
+                                           static_cast<double>(*fileSize));
               }
             }
           }
@@ -314,9 +315,9 @@ void StatisticsFileCSV::loadStatisticData(StatisticsData &statisticsData, int po
         this->blockOutsideOfFramePOC = poc;
 
       auto &statTypes = statisticsData.getStatisticsTypes();
-      auto  statIt    = std::find_if(statTypes.begin(), statTypes.end(), [type](StatisticsType &t) {
-        return t.typeID == type;
-      });
+      auto  statIt    = std::find_if(statTypes.begin(),
+                                 statTypes.end(),
+                                 [type](StatisticsType &t) { return t.typeID == type; });
       Q_ASSERT_X(statIt != statTypes.end(), Q_FUNC_INFO, "Stat type not found.");
 
       if (vectorData && statIt->hasVectorData)
diff --git a/YUViewLib/src/statistics/StatisticsFileVTMBMS.cpp b/YUViewLib/src/statistics/StatisticsFileVTMBMS.cpp
index 644a9b0fe..5f01aaf27 100644
--- a/YUViewLib/src/statistics/StatisticsFileVTMBMS.cpp
+++ b/YUViewLib/src/statistics/StatisticsFileVTMBMS.cpp
@@ -142,8 +142,9 @@ void StatisticsFileVTMBMS::readFrameAndTypePositionsFromFile(std::atomic_bool &b
                   this->maxPOC = poc;
 
                 // Update percent of file parsed
-                this->parsingProgress =
-                    ((double)lineBufferStartPos * 100 / (double)inputFile.getFileSize());
+                if (const auto fileSize = inputFile.getFileSize())
+                  this->parsingProgress = (static_cast<double>(lineBufferStartPos) * 100 /
+                                           static_cast<double>(*fileSize));
               }
             }
           }
@@ -209,9 +210,9 @@ void StatisticsFileVTMBMS::loadStatisticData(StatisticsData &statisticsData, int
 
     // prepare regex for selected type
     auto &statTypes = statisticsData.getStatisticsTypes();
-    auto  statIt    = std::find_if(statTypes.begin(), statTypes.end(), [typeID](StatisticsType &t) {
-      return t.typeID == typeID;
-    });
+    auto  statIt    = std::find_if(statTypes.begin(),
+                               statTypes.end(),
+                               [typeID](StatisticsType &t) { return t.typeID == typeID; });
     Q_ASSERT_X(statIt != statTypes.end(), Q_FUNC_INFO, "Stat type not found.");
     QRegularExpression typeRegex(" " + statIt->typeName + "="); // for catching lines of the type
 
@@ -434,11 +435,11 @@ void StatisticsFileVTMBMS::readHeaderFromFile(StatisticsData &statisticsData)
 
       // extract statistics information from header lines
       // match:
-      //# Sequence size: [832x 480]
+      // # Sequence size: [832x 480]
       QRegularExpression sequenceSizeRegex("# Sequence size: \\[([0-9]+)x *([0-9]+)\\]");
 
       // match:
-      //# Block Statistic Type: MergeFlag; Flag
+      // # Block Statistic Type: MergeFlag; Flag
       QRegularExpression availableStatisticsRegex(
           "# Block Statistic Type: *([0-9a-zA-Z_]+); *([0-9a-zA-Z]+); *(.*)");
 
diff --git a/YUViewLib/src/ui/widgets/BitstreamAnalysisWidget.cpp b/YUViewLib/src/ui/widgets/BitstreamAnalysisWidget.cpp
index d7ca5eb10..baf37762a 100644
--- a/YUViewLib/src/ui/widgets/BitstreamAnalysisWidget.cpp
+++ b/YUViewLib/src/ui/widgets/BitstreamAnalysisWidget.cpp
@@ -196,7 +196,7 @@ void BitstreamAnalysisWidget::stopAndDeleteParserBlocking()
 void BitstreamAnalysisWidget::backgroundParsingFunction()
 {
   if (this->parser)
-    this->parser->runParsingOfFile(this->currentCompressedVideo->properties().name);
+    this->parser->runParsingOfFile(this->currentCompressedVideo->properties().name.toStdString());
 }
 
 void BitstreamAnalysisWidget::currentSelectedItemsChanged(playlistItem *item1, playlistItem *, bool)
diff --git a/YUViewLib/src/ui/widgets/FileInfoWidget.cpp b/YUViewLib/src/ui/widgets/FileInfoWidget.cpp
index 6dda65218..6b9f2d383 100644
--- a/YUViewLib/src/ui/widgets/FileInfoWidget.cpp
+++ b/YUViewLib/src/ui/widgets/FileInfoWidget.cpp
@@ -1,54 +1,67 @@
 /*  This file is part of YUView - The YUV player with advanced analytics toolset
-*   <https://github.com/IENT/YUView>
-*   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
-*
-*   This program is free software; you can redistribute it and/or modify
-*   it under the terms of the GNU General Public License as published by
-*   the Free Software Foundation; either version 3 of the License, or
-*   (at your option) any later version.
-*
-*   In addition, as a special exception, the copyright holders give
-*   permission to link the code of portions of this program with the
-*   OpenSSL library under certain conditions as described in each
-*   individual source file, and distribute linked combinations including
-*   the two.
-*
-*   You must obey the GNU General Public License in all respects for all
-*   of the code used other than OpenSSL. If you modify file(s) with this
-*   exception, you may extend this exception to your version of the
-*   file(s), but you are not obligated to do so. If you do not wish to do
-*   so, delete this exception statement from your version. If you delete
-*   this exception statement from all source files in the program, then
-*   also delete it here.
-*
-*   This program is distributed in the hope that it will be useful,
-*   but WITHOUT ANY WARRANTY; without even the implied warranty of
-*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-*   GNU General Public License for more details.
-*
-*   You should have received a copy of the GNU General Public License
-*   along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ *   <https://github.com/IENT/YUView>
+ *   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   In addition, as a special exception, the copyright holders give
+ *   permission to link the code of portions of this program with the
+ *   OpenSSL library under certain conditions as described in each
+ *   individual source file, and distribute linked combinations including
+ *   the two.
+ *
+ *   You must obey the GNU General Public License in all respects for all
+ *   of the code used other than OpenSSL. If you modify file(s) with this
+ *   exception, you may extend this exception to your version of the
+ *   file(s), but you are not obligated to do so. If you do not wish to do
+ *   so, delete this exception statement from your version. If you delete
+ *   this exception statement from all source files in the program, then
+ *   also delete it here.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 
 #include "FileInfoWidget.h"
 
+#include <QGridLayout>
 #include <QPointer>
 #include <QPushButton>
-#include <QGridLayout>
 #include <QVariant>
 
 #include "QLabelElided.h"
 
-static const char kInfoIndex[] = "fi_infoIndex";
-static const char kInfoButtonID[] = "fi_buttonID";
+namespace
+{
+
+constexpr auto FILEINFOWIDGET_DEFAULT_WINDOW_TITLE = "Info";
+
+void clearItemsPastGivenRow(QGridLayout &grid, const int row)
+{
+  for (int i = row; i < grid.rowCount(); ++i)
+    for (int j = 0; j < grid.columnCount(); ++j)
+    {
+      auto item = grid.itemAtPosition(i, j);
+      if (item)
+        delete item->widget();
+    }
+}
+
+} // namespace
 
 /* The file info group box can display information on a file (or any other display object).
  * If you provide a list of QString tuples, this class will fill a grid layout with the
  * corresponding labels.
  */
-FileInfoWidget::FileInfoWidget(QWidget *parent) :
-  QWidget(parent),
-  grid(this)
+FileInfoWidget::FileInfoWidget(QWidget *parent) : QWidget(parent), grid(this)
 {
   // Load the warning icon
   warningIcon = QPixmap(":img_warning.png");
@@ -57,37 +70,26 @@ FileInfoWidget::FileInfoWidget(QWidget *parent) :
   setInfo();
 }
 
-void FileInfoWidget::clear(int startRow)
-{
-  for (int i = startRow; i < grid.rowCount(); ++i)
-    for (int j = 0; j < grid.columnCount(); ++j)
-    {
-      auto item = grid.itemAtPosition(i, j);
-      if (item) 
-        delete item->widget();
-    }
-}
-
 // Returns a possibly new widget at given row and column, having a set column span.
 // Any existing widgets of other types or other span will be removed.
-template <typename W> static W * widgetAt(QGridLayout *grid, int row, int column, int columnSpan = 1)
+template <typename W> static W *widgetAt(QGridLayout *grid, int row, int column, int columnSpan = 1)
 {
   Q_ASSERT(grid->columnCount() <= 2);
   QPointer<QWidget> widgets[2];
   for (int j = 0; j < grid->columnCount(); ++j)
   {
     auto item = grid->itemAtPosition(row, j);
-    if (item) 
+    if (item)
       widgets[j] = item->widget();
   }
 
   if (columnSpan == 1 && widgets[0] == widgets[1])
     delete widgets[0];
   if (columnSpan == 2 && widgets[0] != widgets[1])
-    for (auto & w : widgets)
+    for (auto &w : widgets)
       delete w;
 
-  auto widget = qobject_cast<W*>(widgets[column]);
+  auto widget = qobject_cast<W *>(widgets[column]);
   if (!widget)
   {
     // There may be an incompatible widget there.
@@ -98,33 +100,22 @@ template <typename W> static W * widgetAt(QGridLayout *grid, int row, int column
   return widget;
 }
 
-int FileInfoWidget::addInfo(const InfoData &data, int row, int infoIndex)
+int FileInfoWidget::addInfoDataItemsAndGetNextRowIndex(const InfoData &data, int row)
 {
   for (auto &info : data.items)
   {
-    auto name = widgetAt<QLabel>(&grid, row, 0);
+    auto name = widgetAt<QLabel>(&this->grid, row, 0);
     if (info.name != "Warning")
-      name->setText(info.name);
+      name->setText(QString::fromStdString(info.name));
     else
-      name->setPixmap(warningIcon);
+      name->setPixmap(this->warningIcon);
 
-    if (!info.button)
-    {
-      auto text = widgetAt<QLabelElided>(&grid, row, 1);
-      text->setText(info.text);
-      text->setToolTip(info.toolTip);
-    }
-    else
-    {
-      auto button = widgetAt<QPushButton>(&grid, row, 1);
-      button->setText(info.text);
-      button->setToolTip(info.toolTip);
-      button->setProperty(kInfoIndex, infoIndex);
-      button->setProperty(kInfoButtonID, info.buttonID);
-      connect(button, &QPushButton::clicked, this, &FileInfoWidget::infoButtonClickedSlot, Qt::UniqueConnection);
-    }
-    grid.setRowStretch(row, 0);
-    ++ row;
+    auto textLabel = widgetAt<QLabelElided>(&this->grid, row, 1);
+    textLabel->setText(QString::fromStdString(info.text));
+    textLabel->setToolTip(QString::fromStdString(info.description));
+
+    this->grid.setRowStretch(row, 0);
+    ++row;
   }
   return row;
 }
@@ -132,14 +123,14 @@ int FileInfoWidget::addInfo(const InfoData &data, int row, int infoIndex)
 void FileInfoWidget::setInfo(const InfoData &info1, const InfoData &info2)
 {
   QString topTitle = FILEINFOWIDGET_DEFAULT_WINDOW_TITLE;
-  int row = 0;
+  int     row      = 0;
 
   if (!info2.isEmpty())
     widgetAt<QLabel>(&grid, row++, 0, 2)->setText(QStringLiteral("1: %1").arg(info1.title));
-  else
-    if (!info1.title.isEmpty()) topTitle = info1.title;
+  else if (!info1.title.isEmpty())
+    topTitle = info1.title;
 
-  row = addInfo(info1, row, 0);
+  row = this->addInfoDataItemsAndGetNextRowIndex(info1, row);
 
   if (!info2.isEmpty())
   {
@@ -147,24 +138,16 @@ void FileInfoWidget::setInfo(const InfoData &info1, const InfoData &info2)
     widgetAt<QLabel>(&grid, row++, 0, 2)->setText(QStringLiteral("2: %2").arg(info2.title));
   }
 
-  row = addInfo(info2, row, 1);
+  row = this->addInfoDataItemsAndGetNextRowIndex(info2, row);
 
-  clear(row);
+  clearItemsPastGivenRow(this->grid, row);
 
-  if (row)
+  if (row > 0)
   {
-    grid.setColumnStretch(1, 1); // Last column should stretch
-    grid.setRowStretch(row-1, 1); // Last row should stretch
+    grid.setColumnStretch(1, 1);    // Last column should stretch
+    grid.setRowStretch(row - 1, 1); // Last row should stretch
   }
 
-  if (parentWidget())
-    parentWidget()->setWindowTitle(topTitle);
-}
-
-void FileInfoWidget::infoButtonClickedSlot()
-{
-  auto button = qobject_cast<QPushButton*>(QObject::sender());
-  if (button)
-    emit infoButtonClicked(button->property(kInfoIndex).toInt(),
-                           button->property(kInfoButtonID).toInt());
+  if (this->parentWidget())
+    this->parentWidget()->setWindowTitle(topTitle);
 }
diff --git a/YUViewLib/src/ui/widgets/FileInfoWidget.h b/YUViewLib/src/ui/widgets/FileInfoWidget.h
index 05ef40186..10aa2cab1 100644
--- a/YUViewLib/src/ui/widgets/FileInfoWidget.h
+++ b/YUViewLib/src/ui/widgets/FileInfoWidget.h
@@ -1,34 +1,34 @@
 /*  This file is part of YUView - The YUV player with advanced analytics toolset
-*   <https://github.com/IENT/YUView>
-*   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
-*
-*   This program is free software; you can redistribute it and/or modify
-*   it under the terms of the GNU General Public License as published by
-*   the Free Software Foundation; either version 3 of the License, or
-*   (at your option) any later version.
-*
-*   In addition, as a special exception, the copyright holders give
-*   permission to link the code of portions of this program with the
-*   OpenSSL library under certain conditions as described in each
-*   individual source file, and distribute linked combinations including
-*   the two.
-*   
-*   You must obey the GNU General Public License in all respects for all
-*   of the code used other than OpenSSL. If you modify file(s) with this
-*   exception, you may extend this exception to your version of the
-*   file(s), but you are not obligated to do so. If you do not wish to do
-*   so, delete this exception statement from your version. If you delete
-*   this exception statement from all source files in the program, then
-*   also delete it here.
-*
-*   This program is distributed in the hope that it will be useful,
-*   but WITHOUT ANY WARRANTY; without even the implied warranty of
-*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-*   GNU General Public License for more details.
-*
-*   You should have received a copy of the GNU General Public License
-*   along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ *   <https://github.com/IENT/YUView>
+ *   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   In addition, as a special exception, the copyright holders give
+ *   permission to link the code of portions of this program with the
+ *   OpenSSL library under certain conditions as described in each
+ *   individual source file, and distribute linked combinations including
+ *   the two.
+ *
+ *   You must obey the GNU General Public License in all respects for all
+ *   of the code used other than OpenSSL. If you modify file(s) with this
+ *   exception, you may extend this exception to your version of the
+ *   file(s), but you are not obligated to do so. If you do not wish to do
+ *   so, delete this exception statement from your version. If you delete
+ *   this exception statement from all source files in the program, then
+ *   also delete it here.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 
 #pragma once
 
@@ -36,10 +36,7 @@
 #include <QPixmap>
 #include <QWidget>
 
-#include "common/FileInfo.h"
-
-// This is the text that will be shown in the dockWidgets title if no playlistitem is selected
-#define FILEINFOWIDGET_DEFAULT_WINDOW_TITLE "Info"
+#include "common/InfoItemAndData.h"
 
 class FileInfoWidget : public QWidget
 {
@@ -58,18 +55,8 @@ class FileInfoWidget : public QWidget
   Q_SIGNAL void infoButtonClicked(int infoIndex, int row);
 
 private:
-  // Clear widgets starting at given row.
-  void clear(int startRow);
-
-  // Add information at the given grid row, for a given InfoData index (0 or 1).
-  int addInfo(const InfoData &data, int row, int infoIndex);
-
-  // One of the buttons in the info panel was clicked.
-  void infoButtonClickedSlot();
+  int addInfoDataItemsAndGetNextRowIndex(const InfoData &data, int row);
 
-  // The grid layout that contains all the InfoItems
   QGridLayout grid;
-    
-  // The warning icon. This is shown instead of a text if the name of the InfoItem is "Warning"
-  QPixmap warningIcon;
+  QPixmap     warningIcon;
 };
diff --git a/YUViewLib/src/video/FrameHandler.cpp b/YUViewLib/src/video/FrameHandler.cpp
index 40796c8ed..21e912171 100644
--- a/YUViewLib/src/video/FrameHandler.cpp
+++ b/YUViewLib/src/video/FrameHandler.cpp
@@ -279,7 +279,7 @@ void FrameHandler::drawFrame(QPainter *painter, double zoomFactor, bool drawRawV
 
 void FrameHandler::drawPixelValues(QPainter *painter,
                                    const int,
-                                   const QRect & videoRect,
+                                   const QRect  &videoRect,
                                    const double  zoomFactor,
                                    FrameHandler *item2,
                                    const bool    markDifference,
@@ -424,17 +424,17 @@ QImage FrameHandler::calculateDifference(FrameHandler *item2,
     }
   }
 
-  differenceInfoList.append(InfoItem("Difference Type", "RGB"));
+  differenceInfoList.append(InfoItem("Difference Type"sv, "RGB"));
 
   double mse[4];
   mse[0] = double(mseAdd[0]) / (width * height);
   mse[1] = double(mseAdd[1]) / (width * height);
   mse[2] = double(mseAdd[2]) / (width * height);
   mse[3] = mse[0] + mse[1] + mse[2];
-  differenceInfoList.append(InfoItem("MSE R", QString("%1").arg(mse[0])));
-  differenceInfoList.append(InfoItem("MSE G", QString("%1").arg(mse[1])));
-  differenceInfoList.append(InfoItem("MSE B", QString("%1").arg(mse[2])));
-  differenceInfoList.append(InfoItem("MSE All", QString("%1").arg(mse[3])));
+  differenceInfoList.append(InfoItem("MSE R", std::to_string(mse[0])));
+  differenceInfoList.append(InfoItem("MSE G", std::to_string(mse[1])));
+  differenceInfoList.append(InfoItem("MSE B", std::to_string(mse[2])));
+  differenceInfoList.append(InfoItem("MSE All", std::to_string(mse[3])));
 
   return diffImg;
 }
diff --git a/YUViewLib/src/video/FrameHandler.h b/YUViewLib/src/video/FrameHandler.h
index 0b4a0c51d..13181776c 100644
--- a/YUViewLib/src/video/FrameHandler.h
+++ b/YUViewLib/src/video/FrameHandler.h
@@ -32,7 +32,7 @@
 
 #pragma once
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 #include <common/SaveUi.h>
 #include <common/Typedef.h>
 #include <common/YUViewDomElement.h>
@@ -94,7 +94,7 @@ class FrameHandler : public QObject
   // Calculate the difference of this FrameHandler to another FrameHandler. This
   // function can be overloaded by more specialized video items. For example the videoHandlerYUV
   // overloads this and calculates the difference directly on the YUV values (if possible).
-  virtual QImage calculateDifference(FrameHandler *   item2,
+  virtual QImage calculateDifference(FrameHandler    *item2,
                                      const int        frameIdxItem0,
                                      const int        frameIdxItem1,
                                      QList<InfoItem> &differenceInfoList,
@@ -115,9 +115,9 @@ class FrameHandler : public QObject
   // playlistItemYUVSource). If a second FrameHandler item is provided, the difference values will
   // be drawn. For the second item, a second frame index must be provided (set markDifference if you
   // want only differing values to be marked).
-  virtual void drawPixelValues(QPainter *    painter,
+  virtual void drawPixelValues(QPainter     *painter,
                                const int     frameIdx,
-                               const QRect & videoRect,
+                               const QRect  &videoRect,
                                const double  zoomFactor,
                                FrameHandler *item2          = nullptr,
                                const bool    markDifference = false,
diff --git a/YUViewLib/src/video/rgb/videoHandlerRGB.cpp b/YUViewLib/src/video/rgb/videoHandlerRGB.cpp
index 6ae4be830..09f574355 100644
--- a/YUViewLib/src/video/rgb/videoHandlerRGB.cpp
+++ b/YUViewLib/src/video/rgb/videoHandlerRGB.cpp
@@ -33,10 +33,10 @@
 #include "videoHandlerRGB.h"
 
 #include <common/EnumMapper.h>
-#include <common/FileInfo.h>
 #include <common/Formatting.h>
 #include <common/Functions.h>
 #include <common/FunctionsGui.h>
+#include <common/InfoItemAndData.h>
 #include <video/rgb/ConversionRGB.h>
 #include <video/rgb/PixelFormatRGBGuess.h>
 #include <video/rgb/videoHandlerRGBCustomFormatDialog.h>
@@ -66,6 +66,27 @@ constexpr EnumMapper<ComponentDisplayMode, 6>
                                      std::make_pair(ComponentDisplayMode::B, "Blue Only"sv),
                                      std::make_pair(ComponentDisplayMode::A, "Alpha Only"sv));
 
+void addConversionInformationToInfoList(QList<InfoItem> &differenceInfoList,
+                                        const int        width,
+                                        const int        height,
+                                        const unsigned   bitDepth,
+                                        const int64_t    mseAdd[3])
+{
+  differenceInfoList.append(InfoItem("Difference Type", "RGB " + std::to_string(bitDepth) + "bit"));
+
+  const auto nrPixels = static_cast<double>(width * height);
+  differenceInfoList.append(
+      InfoItem("MSE R", std::to_string(static_cast<double>(mseAdd[0]) / nrPixels)));
+  differenceInfoList.append(
+      InfoItem("MSE G", std::to_string(static_cast<double>(mseAdd[1]) / nrPixels)));
+  differenceInfoList.append(
+      InfoItem("MSE B", std::to_string(static_cast<double>(mseAdd[2]) / nrPixels)));
+
+  differenceInfoList.append(
+      InfoItem("MSE All",
+               std::to_string(static_cast<double>(mseAdd[0] + mseAdd[1] + mseAdd[2]) / nrPixels)));
+}
+
 } // namespace
 
 // Activate this if you want to know when which buffer is loaded/converted to image and so on.
@@ -379,7 +400,8 @@ void videoHandlerRGB::slotRGBFormatControlChanged(int selectionIndex)
 {
   const auto nrBytesOldFormat = getBytesPerFrame();
 
-  const auto customFormatSelected = (selectionIndex == videoHandlerRGB::formatPresetList.size());
+  const auto customFormatSelected =
+      (selectionIndex == static_cast<int>(videoHandlerRGB::formatPresetList.size()));
   if (customFormatSelected)
   {
     DEBUG_RGB("videoHandlerRGB::slotRGBFormatControlChanged custom format");
@@ -1047,17 +1069,7 @@ QImage videoHandlerRGB::calculateDifference(FrameHandler    *item2,
           false, Q_FUNC_INFO, "No RGB format with less than 8 or more than 16 bits supported yet.");
   }
 
-  // Append the conversion information that will be returned
-  differenceInfoList.append(InfoItem("Difference Type", QString("RGB %1bit").arg(bitDepth)));
-  double mse[4];
-  mse[0] = double(mseAdd[0]) / (width * height);
-  mse[1] = double(mseAdd[1]) / (width * height);
-  mse[2] = double(mseAdd[2]) / (width * height);
-  mse[3] = mse[0] + mse[1] + mse[2];
-  differenceInfoList.append(InfoItem("MSE R", QString("%1").arg(mse[0])));
-  differenceInfoList.append(InfoItem("MSE G", QString("%1").arg(mse[1])));
-  differenceInfoList.append(InfoItem("MSE B", QString("%1").arg(mse[2])));
-  differenceInfoList.append(InfoItem("MSE All", QString("%1").arg(mse[3])));
+  addConversionInformationToInfoList(differenceInfoList, width, height, bitDepth, mseAdd);
 
   return outputImage;
 }
diff --git a/YUViewLib/src/video/videoHandlerDifference.cpp b/YUViewLib/src/video/videoHandlerDifference.cpp
index cb62d224a..ec375409b 100644
--- a/YUViewLib/src/video/videoHandlerDifference.cpp
+++ b/YUViewLib/src/video/videoHandlerDifference.cpp
@@ -292,9 +292,10 @@ void videoHandlerDifference::reportFirstDifferencePosition(QList<InfoItem> &info
                                       videoYUV0->getDiffYUVFormat()))
           {
             // We found a difference in this block
-            infoList.append(InfoItem("First diff LCU", QString::number(y * widthLCU + x)));
-            infoList.append(InfoItem("First diff X,Y", QString("%1,%2").arg(firstX).arg(firstY)));
-            infoList.append(InfoItem("First diff partIndex", QString::number(partIndex)));
+            infoList.append(InfoItem("First diff LCU", std::to_string(y * widthLCU + x)));
+            infoList.append(
+                InfoItem("First diff X,Y", std::to_string(firstX) + "," + std::to_string(firstY)));
+            infoList.append(InfoItem("First diff partIndex", std::to_string(partIndex)));
             return;
           }
         }
@@ -303,9 +304,10 @@ void videoHandlerDifference::reportFirstDifferencePosition(QList<InfoItem> &info
           if (hierarchicalPosition(x * 64, y * 64, 64, firstX, firstY, partIndex, currentImage))
           {
             // We found a difference in this block
-            infoList.append(InfoItem("First diff LCU", QString::number(y * widthLCU + x)));
-            infoList.append(InfoItem("First diff X,Y", QString("%1,%2").arg(firstX).arg(firstY)));
-            infoList.append(InfoItem("First diff partIndex", QString::number(partIndex)));
+            infoList.append(InfoItem("First diff LCU", std::to_string(y * widthLCU + x)));
+            infoList.append(
+                InfoItem("First diff X,Y", std::to_string(firstX) + "," + std::to_string(firstY)));
+            infoList.append(InfoItem("First diff partIndex", std::to_string(partIndex)));
             return;
           }
         }
@@ -314,7 +316,7 @@ void videoHandlerDifference::reportFirstDifferencePosition(QList<InfoItem> &info
   }
 
   // No difference was found
-  infoList.append(InfoItem("Difference", "Frames are identical"));
+  infoList.append(InfoItem("Difference"sv, "Frames are identical"));
 }
 
 void videoHandlerDifference::savePlaylist(YUViewDomElement &element) const
diff --git a/YUViewLib/src/video/videoHandlerDifference.h b/YUViewLib/src/video/videoHandlerDifference.h
index 0918e5481..711fe4033 100644
--- a/YUViewLib/src/video/videoHandlerDifference.h
+++ b/YUViewLib/src/video/videoHandlerDifference.h
@@ -32,7 +32,7 @@
 
 #pragma once
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 #include <video/videoHandler.h>
 #include <video/yuv/videoHandlerYUV.h>
 
@@ -109,17 +109,17 @@ private slots:
   bool hierarchicalPosition(int           x,
                             int           y,
                             int           blockSize,
-                            int &         firstX,
-                            int &         firstY,
-                            int &         partIndex,
+                            int          &firstX,
+                            int          &firstY,
+                            int          &partIndex,
                             const QImage &diffImg) const;
   bool hierarchicalPositionYUV(int                        x,
                                int                        y,
                                int                        blockSize,
-                               int &                      firstX,
-                               int &                      firstY,
-                               int &                      partIndex,
-                               const QByteArray &         diffYUV,
+                               int                       &firstX,
+                               int                       &firstY,
+                               int                       &partIndex,
+                               const QByteArray          &diffYUV,
                                const yuv::PixelFormatYUV &diffYUVFormat) const;
 
   SafeUi<Ui::videoHandlerDifference> ui;
diff --git a/YUViewLib/src/video/videoHandlerResample.h b/YUViewLib/src/video/videoHandlerResample.h
index d31edccc0..30f2b56c8 100644
--- a/YUViewLib/src/video/videoHandlerResample.h
+++ b/YUViewLib/src/video/videoHandlerResample.h
@@ -32,7 +32,7 @@
 
 #pragma once
 
-#include <common/FileInfo.h>
+#include <common/InfoItemAndData.h>
 
 #include <video/videoHandler.h>
 #include <video/yuv/videoHandlerYUV.h>
@@ -57,7 +57,7 @@ class videoHandlerResample : public videoHandler
 
   // We need to override these videoHandler functions in order to map the frameIndex
   void drawFrame(QPainter *painter, int frameIndex, double zoomFactor, bool drawRawValues) override;
-  QImage           calculateDifference(FrameHandler *   item2,
+  QImage           calculateDifference(FrameHandler    *item2,
                                        const int        frameIndex0,
                                        const int        frameIndex1,
                                        QList<InfoItem> &differenceInfoList,
diff --git a/YUViewLib/src/video/yuv/videoHandlerYUV.cpp b/YUViewLib/src/video/yuv/videoHandlerYUV.cpp
index 3079de8e3..cfe41ff7e 100644
--- a/YUViewLib/src/video/yuv/videoHandlerYUV.cpp
+++ b/YUViewLib/src/video/yuv/videoHandlerYUV.cpp
@@ -35,6 +35,8 @@
 #include <algorithm>
 #include <cmath>
 #include <cstdio>
+#include <iomanip>
+#include <sstream>
 #include <type_traits>
 #include <vector>
 
@@ -44,10 +46,10 @@
 #include <QDir>
 #include <QPainter>
 
-#include <common/FileInfo.h>
 #include <common/Formatting.h>
 #include <common/Functions.h>
 #include <common/FunctionsGui.h>
+#include <common/InfoItemAndData.h>
 #include <video/LimitedRangeToFullRange.h>
 #include <video/yuv/PixelFormatYUVGuess.h>
 #include <video/yuv/videoHandlerYUVCustomFormatDialog.h>
@@ -113,6 +115,17 @@ template <typename T> double computeMSE(T ptr, T ptr2, int numPixels)
   return (double)sad / numPixels;
 }
 
+std::string formatMSEandPSNR(const double mse, const int bps_out)
+{
+  const auto maxSquared = ((1 << bps_out) - 1) * ((1 << bps_out) - 1);
+  const auto psnr       = 10 * std::log10(maxSquared / mse);
+
+  std::ostringstream stream;
+  stream << std::setw(1) << mse << " (" << std::setw(2) << psnr << ")";
+
+  return stream.str();
+}
+
 bool isFullRange(const ColorConversion colorConversion)
 {
   return colorConversion == ColorConversion::BT709_FullRange ||
@@ -3817,22 +3830,20 @@ QImage videoHandlerYUV::calculateDifference(FrameHandler    *item2,
                                              markDifference);
 
   // Get/Set the bit depth of the input and output
-  // If the bit depth if the two items is different, we will scale the item with the lower bit depth
+  // If the bit depth of the two items is different, we will scale the item with the lower bit depth
   // up.
   const unsigned bps_in[2] = {srcPixelFormat.getBitsPerSample(),
                               yuvItem2->srcPixelFormat.getBitsPerSample()};
   const auto     bps_out   = std::max(bps_in[0], bps_in[1]);
-  // Which of the two input values has to be scaled up? Only one of these (or neither) can be set.
-  const bool bitDepthScaling[2] = {bps_in[0] != bps_out, bps_in[1] != bps_out};
-  // Scale the input up by this many bits
-  const auto depthScale = bps_out - (bitDepthScaling[0] ? bps_in[0] : bps_in[1]);
-  // Add a warning if the bit depths of the two inputs don't agree
-  if (bitDepthScaling[0] || bitDepthScaling[1])
+
+  const unsigned bitDepthScale[2] = {bps_out - bps_in[0], bps_out - bps_in[1]};
+  if (bitDepthScale[0] > 0 || bitDepthScale[1] > 0)
     differenceInfoList.append(
-        InfoItem("Warning",
+        InfoItem("Warning"sv,
                  "The bit depth of the two items differs.",
                  "The bit depth of the two input items is different. The lower bit depth will be "
                  "scaled up and the difference is calculated."));
+
   // What are the maximum and middle value for the output bit depth
   const int diffZero = 128 << (bps_out - 8);
   const int maxVal   = (1 << bps_out) - 1;
@@ -3862,7 +3873,7 @@ QImage videoHandlerYUV::calculateDifference(FrameHandler    *item2,
   // Append a warning if the frame sizes are different
   if (frameSize != yuvItem2->frameSize)
     differenceInfoList.append(
-        InfoItem("Warning",
+        InfoItem("Warning"sv,
                  "The size of the two items differs.",
                  "The size of the two input items is different. The difference of the top left "
                  "aligned part that overlaps will be calculated."));
@@ -3940,10 +3951,8 @@ QImage videoHandlerYUV::calculateDifference(FrameHandler    *item2,
       auto val2 = getValueFromSource(srcY2, x, bps_in[1], bigEndian[1]);
 
       // Scale (if necessary)
-      if (bitDepthScaling[0])
-        val1 = val1 << depthScale;
-      else if (bitDepthScaling[1])
-        val2 = val2 << depthScale;
+      val1 = val1 << bitDepthScale[0];
+      val2 = val2 << bitDepthScale[1];
 
       // Calculate the difference, add MSE, (amplify) and clip the difference value
       auto diff = val1 - val2;
@@ -3975,16 +3984,10 @@ QImage videoHandlerYUV::calculateDifference(FrameHandler    *item2,
       auto valV2 = getValueFromSource(srcV2, x, bps_in[1], bigEndian[1]);
 
       // Scale (if necessary)
-      if (bitDepthScaling[0])
-      {
-        valU1 = valU1 << depthScale;
-        valV1 = valV1 << depthScale;
-      }
-      else if (bitDepthScaling[1])
-      {
-        valU2 = valU2 << depthScale;
-        valV2 = valV2 << depthScale;
-      }
+      valU1 = valU1 << bitDepthScale[0];
+      valV1 = valV1 << bitDepthScale[0];
+      valU2 = valU2 << bitDepthScale[1];
+      valV2 = valV2 << bitDepthScale[1];
 
       // Calculate the difference, add MSE, (amplify) and clip the difference value
       auto diffU = valU1 - valU2;
@@ -4048,37 +4051,27 @@ QImage videoHandlerYUV::calculateDifference(FrameHandler    *item2,
         diffYUV, outputImage.bits(), Size(w_out, h_out), tmpDiffYUVFormat, conversionSettings);
   }
 
-  differenceInfoList.append(
-      InfoItem("Difference Type",
-               QString("YUV %1").arg(QString::fromStdString(
-                   formatSubsamplingWithColons(srcPixelFormat.getSubsampling())))));
+  differenceInfoList.append(InfoItem(
+      "Difference Type", "YUV " + formatSubsamplingWithColons(srcPixelFormat.getSubsampling())));
 
   {
-    auto       nrPixelsLuma = w_out * h_out;
-    const auto maxSquared   = ((1 << bps_out) - 1) * ((1 << bps_out) - 1);
-    auto       mse          = double(mseAdd[0]) / nrPixelsLuma;
-    auto       psnr         = 10 * std::log10(maxSquared / mse);
-    differenceInfoList.append(
-        InfoItem("MSE/PSNR Y", QString("%1 (%2dB)").arg(mse, 0, 'f', 1).arg(psnr, 0, 'f', 2)));
+    const auto nrPixelsLuma = w_out * h_out;
+
+    const auto mseY = double(mseAdd[0]) / nrPixelsLuma;
+    differenceInfoList.append(InfoItem("MSE/PSNR Y", formatMSEandPSNR(mseY, bps_out)));
 
     if (srcPixelFormat.getSubsampling() != Subsampling::YUV_400)
     {
       auto nrPixelsChroma = w_out / subH * h_out / subV;
 
-      auto mseU  = double(mseAdd[1]) / nrPixelsChroma;
-      auto psnrU = 10 * std::log10(maxSquared / mseU);
-      differenceInfoList.append(
-          InfoItem("MSE/PSNR U", QString("%1 (%2dB)").arg(mseU, 0, 'f', 1).arg(psnrU, 0, 'f', 2)));
+      auto mseU = double(mseAdd[1]) / nrPixelsChroma;
+      differenceInfoList.append(InfoItem("MSE/PSNR U", formatMSEandPSNR(mseU, bps_out)));
 
-      auto mseV  = double(mseAdd[2]) / nrPixelsChroma;
-      auto psnrV = 10 * std::log10(maxSquared / mseV);
-      differenceInfoList.append(
-          InfoItem("MSE/PSNR V", QString("%1 (%2dB)").arg(mseV, 0, 'f', 1).arg(psnrV, 0, 'f', 2)));
+      auto mseV = double(mseAdd[2]) / nrPixelsChroma;
+      differenceInfoList.append(InfoItem("MSE/PSNR V", formatMSEandPSNR(mseV, bps_out)));
 
       auto mseAvg = double(mseAdd[0] + mseAdd[1] + mseAdd[2]) / (nrPixelsLuma + 2 * nrPixelsChroma);
-      auto psnrAvg = 10 * std::log10(maxSquared / mseAvg);
-      differenceInfoList.append(InfoItem(
-          "MSE/PSNR Avg", QString("%1 (%2dB)").arg(mseAvg, 0, 'f', 1).arg(psnrAvg, 0, 'f', 2)));
+      differenceInfoList.append(InfoItem("MSE/PSNR Avg", formatMSEandPSNR(mseAvg, bps_out)));
     }
   }
 
diff --git a/YUViewUnitTest/common/FormattingTest.cpp b/YUViewUnitTest/common/FormattingTest.cpp
new file mode 100644
index 000000000..3db63e057
--- /dev/null
+++ b/YUViewUnitTest/common/FormattingTest.cpp
@@ -0,0 +1,88 @@
+/*  This file is part of YUView - The YUV player with advanced analytics toolset
+ *   <https://github.com/IENT/YUView>
+ *   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   In addition, as a special exception, the copyright holders give
+ *   permission to link the code of portions of this program with the
+ *   OpenSSL library under certain conditions as described in each
+ *   individual source file, and distribute linked combinations including
+ *   the two.
+ *
+ *   You must obey the GNU General Public License in all respects for all
+ *   of the code used other than OpenSSL. If you modify file(s) with this
+ *   exception, you may extend this exception to your version of the
+ *   file(s), but you are not obligated to do so. If you do not wish to do
+ *   so, delete this exception statement from your version. If you delete
+ *   this exception statement from all source files in the program, then
+ *   also delete it here.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common/Testing.h>
+
+#include <common/Formatting.h>
+
+namespace
+{
+
+template <typename T> void runFormatTest(const T &value, const std::string_view expectedString)
+{
+  std::ostringstream stream;
+  stream << value;
+  EXPECT_EQ(stream.str(), expectedString);
+  EXPECT_EQ(to_string(value), expectedString);
+}
+
+TEST(FormattingTest, FormattingOfPair)
+{
+  runFormatTest(std::make_pair(11, 472), "(11, 472)");
+  runFormatTest(std::make_pair(11.0, 472.23), "(11, 472.23)");
+  runFormatTest(std::make_pair("abcde", "ghij"), "(abcde, ghij)");
+}
+
+TEST(FormattingTest, FormattingOfVector)
+{
+  runFormatTest(std::vector<int>({8, 22, 99, 0}), "[8, 22, 99, 0]");
+  runFormatTest(std::vector<double>({8.22, 22.12, 99.0, 0.01}), "[8.22, 22.12, 99, 0.01]");
+  runFormatTest(std::vector<std::string>({"abc", "def", "g", "hi"}), "[abc, def, g, hi]");
+}
+
+TEST(FormattingTest, FormattingOfSize)
+{
+  runFormatTest(Size(124, 156), "124x156");
+  runFormatTest(Size(999, 125682), "999x125682");
+}
+
+TEST(FormattingTest, FormattingOfBool)
+{
+  EXPECT_EQ(to_string(false), "False");
+  EXPECT_EQ(to_string(true), "True");
+}
+
+TEST(FormattingTest, FormattingOfOptional)
+{
+  runFormatTest(std::optional<int>(), "NA");
+  runFormatTest(std::make_optional<int>(22), "22");
+  runFormatTest(std::make_optional<double>(22.556), "22.556");
+  runFormatTest(std::make_optional<std::string>("Test234"), "Test234");
+}
+
+TEST(FormattingTest, StringReplaceAll)
+{
+    EXPECT_EQ(stringReplaceAll("abcdefghi", 'c', 'g'), "abgdefghi");
+    EXPECT_EQ(stringReplaceAll("abcdefghijklmn", {'c', 'h', 'm'}, 'g'), "abgdefggijklgn");
+}
+
+} // namespace
diff --git a/YUViewUnitTest/filesource/FileSourceAnnexBTest.cpp b/YUViewUnitTest/filesource/FileSourceAnnexBTest.cpp
index 525d9f1de..ce8031b32 100644
--- a/YUViewUnitTest/filesource/FileSourceAnnexBTest.cpp
+++ b/YUViewUnitTest/filesource/FileSourceAnnexBTest.cpp
@@ -108,7 +108,7 @@ TEST_P(FileSourceAnnexBTest, TestNalUnitParsing)
   const auto [nalSizes, data] = generateAnnexBStream(testParameters);
   yuviewTest::TemporaryFile temporaryFile(data);
 
-  FileSourceAnnexBFile annexBFile(QString::fromStdString(temporaryFile.getFilePathString()));
+  FileSourceAnnexBFile annexBFile(temporaryFile.getFilePath());
   EXPECT_EQ(static_cast<int>(annexBFile.getNrBytesBeforeFirstNAL()),
             testParameters.startCodePositions.at(0));