While I'm cleaning up stuff, make TAStudioLuaLibrary own this logic that only it uses instead of TAStudio worrying about how to batch them.

Author: SuuperW

src/BizHawk.Client.EmuHawk/tools/Lua/Libraries/TAStudioLuaLibrary.cs

@@ -336,13 +336,23 @@ public void ApplyInputChanges()
 								}
 								break;
 							case LuaChangeTypes.InsertFrames:
-								Tastudio.InsertNumFrames(_changeList[i].Frame, _changeList[i].Number);
+								Tastudio.CurrentTasMovie.InsertEmptyFrame(_changeList[i].Frame, _changeList[i].Number);
 								break;
 							case LuaChangeTypes.DeleteFrames:
-								Tastudio.DeleteFrames(_changeList[i].Frame, _changeList[i].Number);
+								int endExclusive = _changeList[i].Frame + _changeList[i].Number;
+								endExclusive = Math.Min(Tastudio.CurrentTasMovie.InputLogLength, endExclusive);
+								if (_changeList[i].Frame < endExclusive)
+								{
+									Tastudio.CurrentTasMovie.RemoveFrames(_changeList[i].Frame, endExclusive);
+								}
 								break;
 							case LuaChangeTypes.ClearFrames:
-								Tastudio.ClearFrames(_changeList[i].Frame, _changeList[i].Number);
+								endExclusive = _changeList[i].Frame + _changeList[i].Number;
+								endExclusive = Math.Min(Tastudio.CurrentTasMovie.InputLogLength, endExclusive);
+								for (int j = _changeList[i].Frame; j < endExclusive; j++)
+								{
+									Tastudio.CurrentTasMovie.ClearFrame(j);
+								}
 								break;
 						}
 					}

src/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs

@@ -583,7 +583,7 @@ private void InsertNumFramesMenuItem_Click(object sender, EventArgs e)
 				using var framesPrompt = new FramesPrompt();
 				if (framesPrompt.ShowDialogOnScreen().IsOk())
 				{
-					InsertNumFrames(insertionFrame, framesPrompt.Frames);
+					CurrentTasMovie.InsertEmptyFrame(insertionFrame, framesPrompt.Frames);
 				}
 			}
 		}

src/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs

@@ -870,40 +870,6 @@ private void SetSplicer()
 			SplicerStatusLabel.Text = temp;
 		}
 
-		public void InsertNumFrames(int insertionFrame, int numberOfFrames)
-		{
-			if (insertionFrame <= CurrentTasMovie.InputLogLength)
-			{
-				CurrentTasMovie.InsertEmptyFrame(insertionFrame, numberOfFrames);
-			}
-		}
-
-		public void DeleteFrames(int beginningFrame, int numberOfFrames)
-		{
-			if (beginningFrame < CurrentTasMovie.InputLogLength)
-			{
-				int[] framesToRemove = Enumerable.Range(beginningFrame, numberOfFrames).ToArray();
-				CurrentTasMovie.RemoveFrames(framesToRemove);
-				SetSplicer();
-			}
-		}
-
-		public void ClearFrames(int beginningFrame, int numberOfFrames)
-		{
-			if (beginningFrame < CurrentTasMovie.InputLogLength)
-			{
-				BeginBatchEdit();
-
-				int last = Math.Min(beginningFrame + numberOfFrames, CurrentTasMovie.InputLogLength);
-				for (int i = beginningFrame; i < last; i++)
-				{
-					CurrentTasMovie.ClearFrame(i);
-				}
-
-				EndBatchEdit();
-			}
-		}
-
 		private void Tastudio_Closing(object sender, FormClosingEventArgs e)
 		{
 			if (!_initialized)