Add method to generate technical summary

mediafileinfo.cpp

@@ -865,6 +865,36 @@ unordered_set<string> MediaFileInfo::availableLanguages(MediaType type) const
     return res;
 }
 
+/*!
+ * \brief Generates a short technical summary about the file's tracks.
+ *
+ * parseTracks() needs to be called before. Otherwise this
+ * method always returns an empty string.
+ *
+ * Example (exact format might change in the future!):
+ * "H.264-720p / HE-AAC-6ch-eng / HE-AAC-2ch-ger / SRT-eng / SRT-ger"
+ *
+ * \sa parseTracks()
+ */
+string MediaFileInfo::technicalSummary() const
+{
+    if(m_container) {
+        const size_t trackCount = m_container->trackCount();
+        vector<string> parts;
+        parts.reserve(trackCount);
+        for(size_t i = 0; i != trackCount; ++i) {
+            const string description(m_container->track(i)->description());
+            if(!description.empty()) {
+                parts.emplace_back(move(description));
+            }
+        }
+        return joinStrings(parts, " / ");
+    } else if(m_singleTrack) {
+        return m_singleTrack->description();
+    }
+    return string();
+}
+
 /*!
  * \brief Removes a possibly assigned ID3v1 tag from the current file.
  *

mediafileinfo.h

@@ -97,6 +97,7 @@ public:
     bool hasTracksOfType(Media::MediaType type) const;
     ChronoUtilities::TimeSpan duration() const;
     std::unordered_set<std::string> availableLanguages(Media::MediaType type = Media::MediaType::Audio) const;
+    std::string technicalSummary() const;
     bool areTracksSupported() const;
     // ... the tags
     ParsingStatus tagsParsingStatus() const;