Fix rendering uses wrong locale, resulting in broken slowmotion in render and...

Fix rendering uses wrong locale, resulting in broken slowmotion in render and possibly other issues on some locales

renderer/kdenlive_render.cpp

@@ -78,7 +78,7 @@ int main(int argc, char **argv)
             // After initialising the MLT factory, set the locale back from user default to C
             // to ensure numbers are always serialised with . as decimal point.
             Mlt::Factory::init();
-            LocaleHandling::resetLocale();
+            LocaleHandling::resetAllLocale();
 
             Mlt::Profile profile(profilePath.toUtf8().constData());
             profile.set_explicit(1);
@@ -138,7 +138,7 @@ int main(int argc, char **argv)
                 playlist.append(QStringLiteral("?multi=1"));
             }
         }
-
+        LocaleHandling::resetAllLocale();
         auto *rJob = new RenderJob(render, playlist, target, pid, in, out, qApp);
         rJob->start();
         QObject::connect(rJob, &RenderJob::renderingFinished, [&, rJob]() {

src/lib/localeHandling.cpp

@@ -47,6 +47,16 @@ void LocaleHandling::resetLocale()
     ::qputenv(MLT_LC_NAME, "C");
 }
 
+void LocaleHandling::resetAllLocale()
+{
+#ifdef Q_OS_FREEBSD
+    setlocale(LC_ALL, "C");
+#else
+    std::setlocale(LC_ALL, "C");
+#endif
+    ::qputenv("LC_ALL", "C");
+}
+
 QPair<QLocale, LocaleHandling::MatchType> LocaleHandling::getQLocaleForDecimalPoint(const QString &requestedLocale, const QString &decimalPoint)
 {
     // Parse installed locales to find one matching

src/lib/localeHandling.h

@@ -43,6 +43,7 @@ public:
      * regardless of the user's locale; many locales use , or another character as decimal point.
      */
     static void resetLocale();
+    static void resetAllLocale();
 };
 
 #endif // KDENLIVE_LOCALEHANDLING_H