add qcif format support and frame rate guessing on opening sequence

app/VideoSubWindow.cpp

@@ -322,7 +322,7 @@ bool VideoSubWindow::loadFile( QString cFilename, bool bForceDialog )
     m_pCurrStream = new CalypStream;
   }
 
-  bool bConfig = guessFormat( cFilename, Width, Height, InputFormat, BitsPel, Endianness ) || bForceDialog;
+  bool bConfig = guessFormat( cFilename, Width, Height, InputFormat, BitsPel, Endianness, FrameRate ) || bForceDialog;
   bool bRet = false;
   for( int iPass = 0; iPass < 2 && !bRet; iPass++ )
   {
@@ -435,7 +435,7 @@ void VideoSubWindow::updateVideoWindowInfo()
 }
 
 bool VideoSubWindow::guessFormat( QString filename, unsigned int& rWidth, unsigned int& rHeight, int& rInputFormat, unsigned int& rBitsPerPixel,
-                                  int& rEndianness )
+                                  int& rEndianness, unsigned int& rFrameRate )
 {
   std::vector<CalypStandardResolution> stdResList = CalypStream::stdResolutionSizes();
   bool bGuessed = true;
@@ -542,6 +542,20 @@ bool VideoSubWindow::guessFormat( QString filename, unsigned int& rWidth, unsign
       }
     }
 
+    // Guess frame rate - match %dbpp
+    QRegularExpressionMatch FpsMatch = QRegularExpression( "_\\d*fps" ).match( FilenameShort );
+    if( FpsMatch.hasMatch() )
+    {
+      QString matchString = FpsMatch.captured( 0 );
+      matchString.remove( "_" );
+      matchString.remove( "fps" );
+      rFrameRate = matchString.toUInt();
+      if( rFrameRate < 0 )
+      {
+        rFrameRate = 30;
+      }
+    }
+
     // Guess Endianness
     if( FilenameShort.contains( QStringLiteral( "be" ), Qt::CaseInsensitive ) )
     {