Fix switching from mux to batch not clearing stream list

Author: n00mkrad

ff-utils-winforms/Forms/MainForm.cs

@@ -315,7 +315,7 @@ private async void fileListMode_SelectedIndexChanged(object sender, EventArgs e)
             RunTask.FileListMode newMode = (RunTask.FileListMode)fileListMode.SelectedIndex;
 
             if (oldMode == RunTask.FileListMode.Mux && newMode == RunTask.FileListMode.Batch)
-                TrackList.ClearCurrentFile();
+                TrackList.ClearCurrentFile(true);
 
             RunTask.currentFileListMode = newMode;
 
@@ -337,10 +337,7 @@ private async void addTracksFromFileBtn_Click(object sender, EventArgs e)
 
             foreach (ListViewItem item in fileList.SelectedItems.Cast<ListViewItem>())
             {
-                //if (AreAnyTracksLoaded())
-                    await TrackList.AddStreamsToList(((FileListEntry)item.Tag).File, item.BackColor, true);
-                //else
-                //    await TrackList.SetAsMainFile(item);
+                await TrackList.AddStreamsToList(((FileListEntry)item.Tag).File, item.BackColor, true);
 
                 if (TrackList.current == null)
                     await TrackList.SetAsMainFile(item);

ff-utils-winforms/UI/TrackList.cs

@@ -24,11 +24,14 @@ class TrackList
         public static FileListEntry current;
         public static AudioConfiguration currentAudioConfig = null;
 
-        public static void ClearCurrentFile()
+        public static void ClearCurrentFile(bool clearStreamList = false)
         {
             current = null;
             Program.mainForm.FfmpegOutputBox.Text = "";
-            //Program.mainForm.streamList.Items.Clear();
+
+            if(clearStreamList)
+                Program.mainForm.streamList.Items.Clear();
+
             Program.mainForm.streamDetailsBox.Text = "";
             Program.mainForm.FormatInfoLabel.Text = "";
             Program.mainForm.MetaGrid.Columns.Clear();