Fixed crashes caused seeking video from second thread

Kaiplayer/AudioDisplay.cpp

@@ -285,7 +285,6 @@ bool AudioDisplay::InitDX(const wxSize &size)
 	d3dpp.BackBufferCount = 1;
 	d3dpp.SwapEffect = D3DSWAPEFFECT_COPY;//D3DSWAPEFFECT_DISCARD;//D3DSWAPEFFECT_COPY;//
 	d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
-	//d3dpp.Flags					 = D3DPRESENTFLAG_VIDEO;
 	d3dpp.Flags = 0;
 	d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE;//D3DPRESENT_INTERVAL_DEFAULT;
 
@@ -1201,6 +1200,9 @@ void AudioDisplay::UpdateSamples() {
 	if (!provider) return;
 	if (w) {
 		int64_t totalSamples = provider->GetNumSamples();
+		//to make not scaling with window change
+		//w to constant number for example 500
+		//spectrum posiotion have to changed that number too
 		int total = totalSamples / w;
 		int max = 5760000 / w;	// 2 minutes at 48 kHz maximum
 		if (total > max) total = max;

Kaiplayer/SubsGridBase.cpp

@@ -977,6 +977,7 @@ bool SubsGridBase::IsModified()
 
 void SubsGridBase::GetUndo(bool redo, int iter)
 {
+	wxMutexLocker lock(editionMutex);
 	Freeze();
 	const wxString &resolution = GetSInfo(L"PlayResX") + L" x " + GetSInfo(L"PlayResY");
 	const wxString &matrix = GetSInfo(L"YCbCr Matrix");
@@ -1083,6 +1084,7 @@ void SubsGridBase::DummyUndo(int newIter)
 {
 	if (newIter >= file->Iter())
 		return;
+	wxMutexLocker lock(editionMutex);
 	file->DummyUndo(newIter);
 	if (SpellErrors.size() > currentLine)
 		SpellErrors[currentLine].clear();
@@ -1169,6 +1171,7 @@ void SubsGridBase::GetSInfos(wxString &textSinfo, bool tld/*=false*/)
 void SubsGridBase::SetModified(unsigned char editionType, bool redit, bool dummy, int SetEditBoxLine, bool Scroll)
 {
 	if (file->IsNotSaved()){
+		wxMutexLocker lock(editionMutex);
 		if (!IsModified()){
 			Kai->Toolbar->UpdateId(GLOBAL_SAVE_SUBS, true);
 			Kai->Menubar->Enable(GLOBAL_SAVE_SUBS, true);

Kaiplayer/VersionKainote.h

@@ -20,5 +20,5 @@
 //StableReleaseLink: https://github.com/bjakja/Kainote/releases/download/v0.9.3.893/Kainote.x64.zip
 //VersionKainoteX86: 0.9.3.910
 
-#define VersionKainote "0.9.8.1209"
-#define NumVersionKainote 0,9,8,1209
+#define VersionKainote "0.9.8.1211"
+#define NumVersionKainote 0,9,8,1211

Kaiplayer/kainoteMain.cpp

@@ -362,8 +362,8 @@ void KainoteFrame::OnMenuSelected(wxCommandEvent& event)
 		tab->Video->ChangePositionByFrame((id == GLOBAL_PREVIOUS_FRAME) ? -1 : 1);
 	}
 
-	if (Options.CheckLastKeyEvent(id))
-		return;
+	//if (Options.CheckLastKeyEvent(id))
+		//return;
 
 	if (id == GLOBAL_SAVE_SUBS){
 		Save(false);
@@ -1668,6 +1668,12 @@ void KainoteFrame::SaveAll()
 bool KainoteFrame::SavePrompt(char mode, int wtab)
 {
 	TabPanel* atab = (wtab < 0) ? GetTab() : Tabs->Page(wtab);
+	if (!atab)
+		return false;
+	if (!atab->Grid)
+		return false;
+	if (!atab->Grid->file)
+		return false;
 	if (atab->Grid->IsModified()){
 		wxString ext = (atab->Grid->subsFormat == ASS) ? L"ass" : (atab->Grid->subsFormat == SRT) ? L"srt" : L"txt";
 		wxString subsExt;