/* 
 *	Copyright (C) 2003-2006 Gabest
 *	http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#include "stdafx.h"
#include <math.h>
#include <time.h>
#include "DirectVobSubFilter.h"
#include "TextInputPin.h"
#include "DirectVobSubPropPage.h"
#include "VSFilter.h"
#include "systray.h"
#include "DSUtil/MediaTypes.h"
#include "SubPic/MemSubPic.h"

#include <initguid.h>
#include "include/moreuuids.h"

///////////////////////////////////////////////////////////////////////////

/*removeme*/
bool g_RegOK = true;//false; // doesn't work with the dvd graph builder
#include "valami.cpp"

////////////////////////////////////////////////////////////////////////////
//
// Constructor
//

CDirectVobSubFilter::CDirectVobSubFilter(LPUNKNOWN punk, HRESULT* phr, const GUID& clsid)
	: CBaseVideoFilter(NAME("CDirectVobSubFilter"), punk, phr, clsid)
	, m_nSubtitleId(-1)
	, m_fMSMpeg4Fix(false)
	, m_fDivxPlusFix(false)
	, m_fps(25)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	m_hdc = 0;
	m_hbm = 0;
	m_hfont = 0;

	{
		LOGFONT lf;
		memset(&lf, 0, sizeof(lf));
		lf.lfCharSet = DEFAULT_CHARSET;
		lf.lfOutPrecision = OUT_CHARACTER_PRECIS;
		lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
		lf.lfQuality = ANTIALIASED_QUALITY;
		HDC hdc = GetDC(NULL);
		lf.lfHeight = -MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
		ReleaseDC(NULL, hdc);
		lf.lfWeight = FW_BOLD;
		_tcscpy(lf.lfFaceName, _T("Arial"));
		m_hfont = CreateFontIndirect(&lf);
	}

	theApp.WriteProfileString(ResStr(IDS_R_DEFTEXTPATHES), _T("Hint"), _T("The first three are fixed, but you can add more up to ten entries."));
	theApp.WriteProfileString(ResStr(IDS_R_DEFTEXTPATHES), _T("Path0"), _T("."));
	theApp.WriteProfileString(ResStr(IDS_R_DEFTEXTPATHES), _T("Path1"), _T("c:\\subtitles"));
	theApp.WriteProfileString(ResStr(IDS_R_DEFTEXTPATHES), _T("Path2"), _T(".\\subtitles"));

	m_fLoading = true;

	m_hSystrayThread = 0;
	m_tbid.hSystrayWnd = NULL;
	m_tbid.graph = NULL;
	m_tbid.fRunOnce = false;
	m_tbid.fShowIcon = (theApp.m_AppName.Find(_T("zplayer"), 0) < 0 || !!theApp.GetProfileInt(ResStr(IDS_R_GENERAL), ResStr(IDS_RG_ENABLEZPICON), 0));

	HRESULT hr = S_OK;
	m_pTextInput.Add(new CTextInputPin(this, m_pLock, &m_csSubLock, &hr));
	ASSERT(SUCCEEDED(hr));

	CAMThread::Create();
	m_frd.EndThreadEvent.Create(0, FALSE, FALSE, 0);
	m_frd.RefreshEvent.Create(0, FALSE, FALSE, 0);
}

CDirectVobSubFilter::~CDirectVobSubFilter()
{
	CAutoLock cAutoLock(&m_csQueueLock);
	if(m_pSubPicQueue) m_pSubPicQueue->Invalidate();
	m_pSubPicQueue = NULL;

	if(m_hfont) {DeleteObject(m_hfont); m_hfont = 0;}
	if(m_hbm) {DeleteObject(m_hbm); m_hbm = 0;}
	if(m_hdc) {DeleteObject(m_hdc); m_hdc = 0;}

	for(int i = 0; i < m_pTextInput.GetCount(); i++) 
		delete m_pTextInput[i];

	m_frd.EndThreadEvent.Set();
	CAMThread::Close();
}

STDMETHODIMP CDirectVobSubFilter::NonDelegatingQueryInterface(REFIID riid, void** ppv)
{
    CheckPointer(ppv, E_POINTER);

    return 
		QI(IDirectVobSub)
		QI(IDirectVobSub2)
		QI(IFilterVersion)
		QI(ISpecifyPropertyPages)
		QI(IAMStreamSelect)
		__super::NonDelegatingQueryInterface(riid, ppv);
}

// CBaseVideoFilter

void CDirectVobSubFilter::GetOutputSize(int& w, int& h, int& arx, int& ary)
{
	CSize s(w, h), os = s;
	AdjustFrameSize(s);
	w = s.cx;
	h = s.cy;

	if(w != os.cx)
	{
		while(arx < 100) arx *= 10, ary *= 10;
		arx = arx * w / os.cx;
	}
	
	if(h != os.cy)
	{
		while(ary < 100) arx *= 10, ary *= 10;
		ary = ary * h / os.cy;
	}
}

HRESULT CDirectVobSubFilter::Transform(IMediaSample* pIn)
{
	HRESULT hr;


	REFERENCE_TIME rtStart, rtStop;
	if(SUCCEEDED(pIn->GetTime(&rtStart, &rtStop)))
	{
		double dRate = m_pInput->CurrentRate();
		
		m_tPrev = m_pInput->CurrentStartTime() + dRate*rtStart;

		REFERENCE_TIME rtAvgTimePerFrame = rtStop - rtStart;
		if(CComQIPtr<ISubClock2> pSC2 = m_pSubClock)
		{
			REFERENCE_TIME rt;
			 if(S_OK == pSC2->GetAvgTimePerFrame(&rt))
				 rtAvgTimePerFrame = rt;
		}

		m_fps = 10000000.0/rtAvgTimePerFrame / dRate;
	}

	//

	{
		CAutoLock cAutoLock(&m_csQueueLock);

		if(m_pSubPicQueue)
		{
			m_pSubPicQueue->SetTime(CalcCurrentTime());
			m_pSubPicQueue->SetFPS(m_fps);
		}
	}

	//

	BYTE* pDataIn = NULL;
	if(FAILED(pIn->GetPointer(&pDataIn)) || !pDataIn)
		return S_FALSE;

	const CMediaType& mt = m_pInput->CurrentMediaType();

	BITMAPINFOHEADER bihIn;
	ExtractBIH(&mt, &bihIn);

	bool fYV12 = (mt.subtype == MEDIASUBTYPE_YV12 || mt.subtype == MEDIASUBTYPE_I420 || mt.subtype == MEDIASUBTYPE_IYUV);
	int bpp = fYV12 ? 8 : bihIn.biBitCount;
	DWORD black = fYV12 ? 0x10101010 : (bihIn.biCompression == '2YUY') ? 0x80108010 : 0;

	CSize sub(m_w, m_h);
	CSize in(bihIn.biWidth, bihIn.biHeight);

	if(FAILED(Copy((BYTE*)m_pTempPicBuff, pDataIn, sub, in, bpp, mt.subtype, black))) 
		return E_FAIL;

	if(fYV12)
	{
		BYTE* pSubV = (BYTE*)m_pTempPicBuff + (sub.cx*bpp>>3)*sub.cy;
		BYTE* pInV = pDataIn + (in.cx*bpp>>3)*in.cy;
		sub.cx >>= 1; sub.cy >>= 1; in.cx >>= 1; in.cy >>= 1;
		BYTE* pSubU = pSubV + (sub.cx*bpp>>3)*sub.cy;
		BYTE* pInU = pInV + (in.cx*bpp>>3)*in.cy;
		if(FAILED(Copy(pSubV, pInV, sub, in, bpp, mt.subtype, 0x80808080)))
			return E_FAIL;
		if(FAILED(Copy(pSubU, pInU, sub, in, bpp, mt.subtype, 0x80808080)))
			return E_FAIL;
	}

	//

	SubPicDesc spd = m_spd;

	CComPtr<IMediaSample> pOut;
	BYTE* pDataOut = NULL;
	if(FAILED(hr = GetDeliveryBuffer(spd.w, spd.h, &pOut))
	|| FAILED(hr = pOut->GetPointer(&pDataOut)))
		return hr;

	pOut->SetTime(&rtStart, &rtStop);
	pOut->SetMediaTime(NULL, NULL);

	pOut->SetDiscontinuity(pIn->IsDiscontinuity() == S_OK);
	pOut->SetSyncPoint(pIn->IsSyncPoint() == S_OK);
	pOut->SetPreroll(pIn->IsPreroll() == S_OK);

	// 

	BITMAPINFOHEADER bihOut;
	ExtractBIH(&m_pOutput->CurrentMediaType(), &bihOut);

	bool fInputFlipped = bihIn.biHeight >= 0 && bihIn.biCompression <= 3;
	bool fOutputFlipped = bihOut.biHeight >= 0 && bihOut.biCompression <= 3;

	bool fFlip = fInputFlipped != fOutputFlipped;
	if(m_fFlipPicture) fFlip = !fFlip;
	if(m_fMSMpeg4Fix) fFlip = !fFlip;
//	if(m_fDivxPlusFix) fFlip = !fFlip;

	bool fFlipSub = fOutputFlipped;
	if(m_fFlipSubtitles) fFlipSub = !fFlipSub;
//	if(m_fDivxPlusFix) fFlipSub = !fFlipSub;

	//

	{
		CAutoLock cAutoLock(&m_csQueueLock);

		if(m_pSubPicQueue)
		{
			CComPtr<ISubPic> pSubPic;
			if(SUCCEEDED(m_pSubPicQueue->LookupSubPic(CalcCurrentTime(), &pSubPic)) && pSubPic)
			{
				CRect r;
				pSubPic->GetDirtyRect(r);

				if(fFlip ^ fFlipSub)
					spd.h = -spd.h;

				pSubPic->AlphaBlt(r, r, &spd);
			}
		}
	}

	CopyBuffer(pDataOut, (BYTE*)spd.bits, spd.w, abs(spd.h)*(fFlip?-1:1), spd.pitch, mt.subtype);

	PrintMessages(pDataOut);

	return m_pOutput->Deliver(pOut);
}

// CBaseFilter

CBasePin* CDirectVobSubFilter::GetPin(int n)
{
	if(n < __super::GetPinCount())
		return __super::GetPin(n);

	n -= __super::GetPinCount();

	if(n >= 0 && n < m_pTextInput.GetCount())
		return m_pTextInput[n]; 

	n -= m_pTextInput.GetCount();

	return NULL;
}

int CDirectVobSubFilter::GetPinCount()
{
	return __super::GetPinCount() + m_pTextInput.GetCount();
}

HRESULT CDirectVobSubFilter::JoinFilterGraph(IFilterGraph* pGraph, LPCWSTR pName)
{
	if(pGraph)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());

		if(!theApp.GetProfileInt(ResStr(IDS_R_GENERAL), ResStr(IDS_RG_SEENDIVXWARNING), 0))
		{
			unsigned __int64 ver = GetFileVersion(_T("divx_c32.ax"));
			if(((ver >> 48)&0xffff) == 4 && ((ver >> 32)&0xffff) == 2)
			{
				DWORD dwVersion = GetVersion();
				DWORD dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
				DWORD dwWindowsMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
				
				if(dwVersion < 0x80000000 && dwWindowsMajorVersion >= 5)
				{
					AfxMessageBox(IDS_DIVX_WARNING);
					theApp.WriteProfileInt(ResStr(IDS_R_GENERAL), ResStr(IDS_RG_SEENDIVXWARNING), 1);
				}
			}
		}

		/*removeme*/
		if(!g_RegOK)
		{
			DllRegisterServer();
			g_RegOK = true;
		}
	}
	else
	{
		if(m_hSystrayThread)
		{
			SendMessage(m_tbid.hSystrayWnd, WM_CLOSE, 0, 0);

			if(WaitForSingleObject(m_hSystrayThread, 10000) != WAIT_OBJECT_0)
			{
				DbgLog((LOG_TRACE, 0, _T("CALL THE AMBULANCE!!!")));
				TerminateThread(m_hSystrayThread, (DWORD)-1);
			}

			m_hSystrayThread = 0;
		}
	}

	return __super::JoinFilterGraph(pGraph, pName);
}

STDMETHODIMP CDirectVobSubFilter::QueryFilterInfo(FILTER_INFO* pInfo)
{
    CheckPointer(pInfo, E_POINTER);
    ValidateReadWritePtr(pInfo, sizeof(FILTER_INFO));

	if(!get_Forced())
		return __super::QueryFilterInfo(pInfo);

	wcscpy(pInfo->achName, L"DirectVobSub (forced auto-loading version)");
	if(pInfo->pGraph = m_pGraph) m_pGraph->AddRef();
	
	return S_OK;
}

// CTransformFilter

HRESULT CDirectVobSubFilter::SetMediaType(PIN_DIRECTION dir, const CMediaType* pmt)
{
	HRESULT hr = __super::SetMediaType(dir, pmt);
	if(FAILED(hr)) return hr;

	if(dir == PINDIR_INPUT)
	{
		CAutoLock cAutoLock(&m_csReceive);

		REFERENCE_TIME atpf = 
			pmt->formattype == FORMAT_VideoInfo ? ((VIDEOINFOHEADER*)pmt->Format())->AvgTimePerFrame :
			pmt->formattype == FORMAT_VideoInfo2 ? ((VIDEOINFOHEADER2*)pmt->Format())->AvgTimePerFrame :
			0;

		m_fps = atpf ? 10000000.0 / atpf : 25;

        InitSubPicQueue();
	}
	else if(dir == PINDIR_OUTPUT)
	{

	}

	return hr;
}

HRESULT CDirectVobSubFilter::CheckConnect(PIN_DIRECTION dir, IPin* pPin)
{
	if(dir == PINDIR_INPUT)
	{
	}
	else if(dir == PINDIR_OUTPUT)
	{
		/*removeme*/
		if(HmGyanusVagyTeNekem(pPin)) return(E_FAIL);
	}

	return __super::CheckConnect(dir, pPin);
}

HRESULT CDirectVobSubFilter::CompleteConnect(PIN_DIRECTION dir, IPin* pReceivePin)
{
	if(dir == PINDIR_INPUT)
	{
		CComPtr<IBaseFilter> pFilter;

		// needed when we have a decoder with a version number of 3.x
		if(SUCCEEDED(m_pGraph->FindFilterByName(L"DivX MPEG-4 DVD Video Decompressor ", &pFilter))
			&& (GetFileVersion(_T("divx_c32.ax")) >> 48) <= 4
		|| SUCCEEDED(m_pGraph->FindFilterByName(L"Microcrap MPEG-4 Video Decompressor", &pFilter))
		|| SUCCEEDED(m_pGraph->FindFilterByName(L"Microsoft MPEG-4 Video Decompressor", &pFilter)) 
			&& (GetFileVersion(_T("mpg4ds32.ax")) >> 48) <= 3)
		{
			m_fMSMpeg4Fix = true;
		}
	}
	else if(dir == PINDIR_OUTPUT)
	{
		if(!m_hSystrayThread)
		{
			m_tbid.graph = m_pGraph;
			m_tbid.dvs = static_cast<IDirectVobSub*>(this);

			DWORD tid;
			m_hSystrayThread = CreateThread(0, 0, SystrayThreadProc, &m_tbid, 0, &tid);
		}

		// HACK: triggers CBaseVideoFilter::SetMediaType to adjust m_w/m_h/.. and InitSubPicQueue() to realloc buffers
		m_pInput->SetMediaType(&m_pInput->CurrentMediaType());
	}

	return __super::CompleteConnect(dir, pReceivePin);
}

HRESULT CDirectVobSubFilter::BreakConnect(PIN_DIRECTION dir)
{
	if(dir == PINDIR_INPUT)
	{
		if(m_pOutput->IsConnected())
		{
			m_pOutput->GetConnected()->Disconnect();
			m_pOutput->Disconnect();
		}
	}
	else if(dir == PINDIR_OUTPUT)
	{
		// not really needed, but may free up a little memory
		CAutoLock cAutoLock(&m_csQueueLock);
		m_pSubPicQueue = NULL;
	}

	return __super::BreakConnect(dir);
}

HRESULT CDirectVobSubFilter::StartStreaming()
{
	m_fLoading = false;

	InitSubPicQueue();

	m_tbid.fRunOnce = true;

	CComPtr<IBaseFilter> pFilter;
	m_fDivxPlusFix = SUCCEEDED(m_pGraph->FindFilterByName(L"HPlus YUV Video Renderer", &pFilter));

	put_MediaFPS(m_fMediaFPSEnabled, m_MediaFPS);

	return __super::StartStreaming();
}

HRESULT CDirectVobSubFilter::StopStreaming()
{
	InvalidateSubtitle();

	return __super::StopStreaming();
}

HRESULT CDirectVobSubFilter::NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
	m_tPrev = tStart;
    return __super::NewSegment(tStart, tStop, dRate);
}

//

REFERENCE_TIME CDirectVobSubFilter::CalcCurrentTime()
{
	REFERENCE_TIME rt = m_pSubClock ? m_pSubClock->GetTime() : m_tPrev;
	return (rt - 10000i64*m_SubtitleDelay) * m_SubtitleSpeedMul / m_SubtitleSpeedDiv; // no, it won't overflow if we use normal parameters (__int64 is enough for about 2000 hours if we multiply it by the max: 65536 as m_SubtitleSpeedMul)
}

void CDirectVobSubFilter::InitSubPicQueue()
{
	CAutoLock cAutoLock(&m_csQueueLock);

	m_pSubPicQueue = NULL;

	m_pTempPicBuff.Free();
	m_pTempPicBuff.Allocate(4*m_w*m_h);

	const GUID& subtype = m_pInput->CurrentMediaType().subtype;

	BITMAPINFOHEADER bihIn;
	ExtractBIH(&m_pInput->CurrentMediaType(), &bihIn);

	m_spd.type = -1;
	if(subtype == MEDIASUBTYPE_YV12) m_spd.type = MSP_YV12;
	else if(subtype == MEDIASUBTYPE_I420 || subtype == MEDIASUBTYPE_IYUV) m_spd.type = MSP_IYUV;
	else if(subtype == MEDIASUBTYPE_YUY2) m_spd.type = MSP_YUY2;
	else if(subtype == MEDIASUBTYPE_RGB32) m_spd.type = MSP_RGB32;
	else if(subtype == MEDIASUBTYPE_RGB24) m_spd.type = MSP_RGB24;
	else if(subtype == MEDIASUBTYPE_RGB565) m_spd.type = MSP_RGB16;
	else if(subtype == MEDIASUBTYPE_RGB555) m_spd.type = MSP_RGB15;
	m_spd.w = m_w;
	m_spd.h = m_h;
	m_spd.bpp = (m_spd.type == MSP_YV12 || m_spd.type == MSP_IYUV) ? 8 : bihIn.biBitCount;
	m_spd.pitch = m_spd.w*m_spd.bpp>>3;
	m_spd.bits = (void*)m_pTempPicBuff;

	CComPtr<ISubPicAllocator> pSubPicAllocator = new CMemSubPicAllocator(m_spd.type, CSize(m_w, m_h));

	CSize video(bihIn.biWidth, bihIn.biHeight), window = video;
	if(AdjustFrameSize(window)) video += video;
	ASSERT(window == CSize(m_w, m_h));

	pSubPicAllocator->SetCurSize(window);
	pSubPicAllocator->SetCurVidRect(CRect(CPoint((window.cx - video.cx)/2, (window.cy - video.cy)/2), video));

	HRESULT hr = S_OK;
	m_pSubPicQueue = m_fDoPreBuffering 
		? (ISubPicQueue*)new CSubPicQueue(10, pSubPicAllocator, &hr)
		: (ISubPicQueue*)new CSubPicQueueNoThread(pSubPicAllocator, &hr);

	if(FAILED(hr)) m_pSubPicQueue = NULL;

	UpdateSubtitle(false);

	if(m_hbm) {DeleteObject(m_hbm); m_hbm = NULL;}
	if(m_hdc) {DeleteDC(m_hdc); m_hdc = NULL;}

	struct {BITMAPINFOHEADER bih; DWORD mask[3];} b = {{sizeof(BITMAPINFOHEADER), m_w, -(int)m_h, 1, 32, BI_BITFIELDS, 0, 0, 0, 0, 0}, 0xFF0000, 0x00FF00, 0x0000FF};
	m_hdc = CreateCompatibleDC(NULL);
	m_hbm = CreateDIBSection(m_hdc, (BITMAPINFO*)&b, DIB_RGB_COLORS, NULL, NULL, 0);

	BITMAP bm;
	GetObject(m_hbm, sizeof(bm), &bm);
	memsetd(bm.bmBits, 0xFF000000, bm.bmHeight*bm.bmWidthBytes);
}

bool CDirectVobSubFilter::AdjustFrameSize(CSize& s)
{
	int horizontal, vertical, resx2, resx2minw, resx2minh;
	get_ExtendPicture(&horizontal, &vertical, &resx2, &resx2minw, &resx2minh);

	bool fRet = (resx2 == 1) || (resx2 == 2 && s.cx*s.cy <= resx2minw*resx2minh);

	if(fRet)
	{
		s.cx <<= 1; 
		s.cy <<= 1;
	}

	int h;
	switch(vertical&0x7f)
	{
	case 1:
		h = s.cx * 9 / 16;
		if(s.cy < h || !!(vertical&0x80)) s.cy = (h + 3) & ~3;
		break;
	case 2:
		h = s.cx * 3 / 4;
		if(s.cy < h || !!(vertical&0x80)) s.cy = (h + 3) & ~3;
		break;
	case 3:
		h = 480;
		if(s.cy < h || !!(vertical&0x80)) s.cy = (h + 3) & ~3;
		break;
	case 4:
		h = 576;
		if(s.cy < h || !!(vertical&0x80)) s.cy = (h + 3) & ~3;
		break;
	}

	if(horizontal == 1)
	{
		s.cx = (s.cx + 31) & ~31;
		s.cy = (s.cy + 1) & ~1;
	}

	return(fRet);
}

STDMETHODIMP CDirectVobSubFilter::Count(DWORD* pcStreams)
{
	if(!pcStreams) return E_POINTER;

	*pcStreams = 0;

	int nLangs = 0;
	if(SUCCEEDED(get_LanguageCount(&nLangs)))
		(*pcStreams) += nLangs;

	(*pcStreams) += 2; // enable ... disable

	(*pcStreams) += 2; // normal flipped

	return S_OK;
}

#define MAXPREFLANGS 5

int CDirectVobSubFilter::FindPreferedLanguage(bool fHideToo)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	int nLangs;
	get_LanguageCount(&nLangs);

	if(nLangs <= 0) return(0);

	for(int i = 0; i < MAXPREFLANGS; i++)
	{
		CString tmp;
		tmp.Format(IDS_RL_LANG, i);

		CString lang = theApp.GetProfileString(ResStr(IDS_R_PREFLANGS), tmp);
		
		if(!lang.IsEmpty())
		{
			for(int ret = 0; ret < nLangs; ret++)
			{
				CString l;
				WCHAR* pName = NULL;
				get_LanguageName(ret, &pName);
				l = pName;
				CoTaskMemFree(pName);

				if(!l.CompareNoCase(lang)) return(ret);
			}
		}
	}

	return(0);
}

void CDirectVobSubFilter::UpdatePreferedLanguages(CString l)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	CString langs[MAXPREFLANGS+1];

	int i = 0, j = 0, k = -1;
	for(; i < MAXPREFLANGS; i++)
	{
		CString tmp;
		tmp.Format(IDS_RL_LANG, i);

		langs[j] = theApp.GetProfileString(ResStr(IDS_R_PREFLANGS), tmp);

		if(!langs[j].IsEmpty()) 
		{
			if(!langs[j].CompareNoCase(l)) k = j;
			j++;
		}
	}

	if(k == -1)
	{
		langs[k = j] = l;
		j++;
	}

	// move the selected to the top of the list

	while(k > 0)
	{
		CString tmp = langs[k]; langs[k] = langs[k-1]; langs[k-1] = tmp;
		k--;
	}

	// move "Hide subtitles" to the last position if it wasn't our selection

	CString hidesubs;
	hidesubs.LoadString(IDS_M_HIDESUBTITLES);

	for(k = 1; k < j; k++)
	{
		if(!langs[k].CompareNoCase(hidesubs)) break;
	}

	while(k < j-1)
	{
		CString tmp = langs[k]; langs[k] = langs[k+1]; langs[k+1] = tmp;
		k++;
	}

	for(i = 0; i < j; i++)
	{
		CString tmp;
		tmp.Format(IDS_RL_LANG, i);

		theApp.WriteProfileString(ResStr(IDS_R_PREFLANGS), tmp, langs[i]);
	}
}

STDMETHODIMP CDirectVobSubFilter::Enable(long lIndex, DWORD dwFlags)
{
	if(!(dwFlags & AMSTREAMSELECTENABLE_ENABLE))
		return E_NOTIMPL;

	int nLangs = 0;
	get_LanguageCount(&nLangs);

	if(!(lIndex >= 0 && lIndex < nLangs+2+2)) 
		return E_INVALIDARG;

	int i = lIndex-1;

	if(i == -1 && !m_fLoading) // we need this because when loading something stupid media player pushes the first stream it founds, which is "enable" in our case
	{
		put_HideSubtitles(false);
	}
	else if(i >= 0 && i < nLangs)
	{
		put_HideSubtitles(false);
		put_SelectedLanguage(i);

		WCHAR* pName = NULL;
		if(SUCCEEDED(get_LanguageName(i, &pName)))
		{
			UpdatePreferedLanguages(CString(pName));
			if(pName) CoTaskMemFree(pName);
		}
	}
	else if(i == nLangs && !m_fLoading)
	{
		put_HideSubtitles(true);
	}
	else if((i == nLangs+1 || i == nLangs+2) && !m_fLoading)
	{
		put_Flip(i == nLangs+2, m_fFlipSubtitles);
	}

	return S_OK;
}

STDMETHODIMP CDirectVobSubFilter::Info(long lIndex, AM_MEDIA_TYPE** ppmt, DWORD* pdwFlags, LCID* plcid, DWORD* pdwGroup, WCHAR** ppszName, IUnknown** ppObject, IUnknown** ppUnk)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	int nLangs = 0;
	get_LanguageCount(&nLangs);

	if(!(lIndex >= 0 && lIndex < nLangs+2+2)) 
		return E_INVALIDARG;

	int i = lIndex-1;

	if(ppmt) *ppmt = CreateMediaType(&m_pInput->CurrentMediaType());

	if(pdwFlags)
	{
		*pdwFlags = 0;

		if(i == -1 && !m_fHideSubtitles
		|| i >= 0 && i < nLangs && i == m_iSelectedLanguage
		|| i == nLangs && m_fHideSubtitles
		|| i == nLangs+1 && !m_fFlipPicture
		|| i == nLangs+2 && m_fFlipPicture)
		{
			*pdwFlags |= AMSTREAMSELECTINFO_ENABLED;
		}
	}

	if(plcid) *plcid = 0;

	if(pdwGroup) *pdwGroup = 0x648E51;

	if(ppszName)
	{
		*ppszName = NULL;

		CStringW str;
		if(i == -1) str = ResStr(IDS_M_SHOWSUBTITLES);
		else if(i >= 0 && i < nLangs) get_LanguageName(i, ppszName);
		else if(i == nLangs) str = ResStr(IDS_M_HIDESUBTITLES);
		else if(i == nLangs+1) {str = ResStr(IDS_M_ORIGINALPICTURE); if(pdwGroup) (*pdwGroup)++;}
		else if(i == nLangs+2) {str = ResStr(IDS_M_FLIPPEDPICTURE); if(pdwGroup) (*pdwGroup)++;}

		if(!str.IsEmpty())
		{
			*ppszName = (WCHAR*)CoTaskMemAlloc((str.GetLength()+1)*sizeof(WCHAR));
			if(*ppszName == NULL) return S_FALSE;
			wcscpy(*ppszName, str);
		}
	}

	if(ppObject) *ppObject = NULL;

	if(ppUnk) *ppUnk = NULL;

	return S_OK;
}

STDMETHODIMP CDirectVobSubFilter::GetClassID(CLSID* pClsid)
{
    if(pClsid == NULL) return E_POINTER;
	*pClsid = m_clsid;
    return NOERROR;
}

STDMETHODIMP CDirectVobSubFilter::GetPages(CAUUID* pPages)
{
    CheckPointer(pPages, E_POINTER);

	pPages->cElems = 7;
    pPages->pElems = (GUID*)CoTaskMemAlloc(sizeof(GUID)*pPages->cElems);

	if(pPages->pElems == NULL) return E_OUTOFMEMORY;

	int i = 0;
    pPages->pElems[i++] = __uuidof(CDVSMainPPage);
    pPages->pElems[i++] = __uuidof(CDVSGeneralPPage);
    pPages->pElems[i++] = __uuidof(CDVSMiscPPage);
    pPages->pElems[i++] = __uuidof(CDVSTimingPPage);
    pPages->pElems[i++] = __uuidof(CDVSColorPPage);
    pPages->pElems[i++] = __uuidof(CDVSPathsPPage);
    pPages->pElems[i++] = __uuidof(CDVSAboutPPage);

    return NOERROR;
}

// IDirectVobSub

STDMETHODIMP CDirectVobSubFilter::put_FileName(WCHAR* fn)
{
	HRESULT hr = CDirectVobSub::put_FileName(fn);

	if(hr == S_OK && !Open()) 
	{
		m_FileName.Empty();
		hr = E_FAIL;
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::get_LanguageCount(int* nLangs)
{
	HRESULT hr = CDirectVobSub::get_LanguageCount(nLangs);

	if(hr == NOERROR && nLangs)
	{
        CAutoLock cAutolock(&m_csQueueLock);

		*nLangs = 0;
		POSITION pos = m_pSubStreams.GetHeadPosition();
		while(pos) (*nLangs) += m_pSubStreams.GetNext(pos)->GetStreamCount();
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::get_LanguageName(int iLanguage, WCHAR** ppName)
{
	HRESULT hr = CDirectVobSub::get_LanguageName(iLanguage, ppName);

	if(!ppName) return E_POINTER;

	if(hr == NOERROR)
	{
        CAutoLock cAutolock(&m_csQueueLock);

		hr = E_INVALIDARG;

		int i = iLanguage;

		POSITION pos = m_pSubStreams.GetHeadPosition();
		while(i >= 0 && pos)
		{
			CComPtr<ISubStream> pSubStream = m_pSubStreams.GetNext(pos);

			if(i < pSubStream->GetStreamCount())
			{
				pSubStream->GetStreamInfo(i, ppName, NULL);
				hr = NOERROR;
				break;
			}

			i -= pSubStream->GetStreamCount();
		}
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_SelectedLanguage(int iSelected)
{
	HRESULT hr = CDirectVobSub::put_SelectedLanguage(iSelected);

	if(hr == NOERROR)
	{
		UpdateSubtitle(false);
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_HideSubtitles(bool fHideSubtitles)
{
	HRESULT hr = CDirectVobSub::put_HideSubtitles(fHideSubtitles);

	if(hr == NOERROR)
	{
		UpdateSubtitle(false);
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_PreBuffering(bool fDoPreBuffering)
{
	HRESULT hr = CDirectVobSub::put_PreBuffering(fDoPreBuffering);

	if(hr == NOERROR)
	{
		InitSubPicQueue();
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_Placement(bool fOverridePlacement, int xperc, int yperc)
{
	HRESULT hr = CDirectVobSub::put_Placement(fOverridePlacement, xperc, yperc);

	if(hr == NOERROR)
	{
		UpdateSubtitle(true);
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_VobSubSettings(bool fBuffer, bool fOnlyShowForcedSubs, bool fReserved)
{
	HRESULT hr = CDirectVobSub::put_VobSubSettings(fBuffer, fOnlyShowForcedSubs, fReserved);

	if(hr == NOERROR)
	{
//		UpdateSubtitle(false);
		InvalidateSubtitle();
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_TextSettings(void* lf, int lflen, COLORREF color, bool fShadow, bool fOutline, bool fAdvancedRenderer)
{
	HRESULT hr = CDirectVobSub::put_TextSettings(lf, lflen, color, fShadow, fOutline, fAdvancedRenderer);
	
	if(hr == NOERROR)
	{
//		UpdateSubtitle(true);
		InvalidateSubtitle();
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_SubtitleTiming(int delay, int speedmul, int speeddiv)
{
	HRESULT hr = CDirectVobSub::put_SubtitleTiming(delay, speedmul, speeddiv);

	if(hr == NOERROR)
	{
		InvalidateSubtitle();
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::get_MediaFPS(bool* fEnabled, double* fps)
{
	HRESULT hr = CDirectVobSub::get_MediaFPS(fEnabled, fps);

	CComQIPtr<IMediaSeeking> pMS = m_pGraph;
	double rate;
	if(pMS && SUCCEEDED(pMS->GetRate(&rate)))
	{
		m_MediaFPS = rate * m_fps;
		if(fps) *fps = m_MediaFPS;
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::put_MediaFPS(bool fEnabled, double fps)
{
	HRESULT hr = CDirectVobSub::put_MediaFPS(fEnabled, fps);

	CComQIPtr<IMediaSeeking> pMS = m_pGraph;
	if(pMS)
	{
		if(hr == NOERROR)
		{
			hr = pMS->SetRate(m_fMediaFPSEnabled ? m_MediaFPS / m_fps : 1.0);
		}

		double dRate;
		if(SUCCEEDED(pMS->GetRate(&dRate)))
			m_MediaFPS = dRate * m_fps;
	}

	return hr;
}

STDMETHODIMP CDirectVobSubFilter::get_ZoomRect(NORMALIZEDRECT* rect)
{
	return E_NOTIMPL;
}

STDMETHODIMP CDirectVobSubFilter::put_ZoomRect(NORMALIZEDRECT* rect)
{
	return E_NOTIMPL;
}

// IDirectVobSub2

STDMETHODIMP CDirectVobSubFilter::put_TextSettings(STSStyle* pDefStyle)
{
	HRESULT hr = CDirectVobSub::put_TextSettings(pDefStyle);
	
	if(hr == NOERROR)
	{
		UpdateSubtitle(true);
	}

	return hr;
}

// IDirectVobSubFilterColor

STDMETHODIMP CDirectVobSubFilter::HasConfigDialog(int iSelected)
{
	int nLangs;
	if(FAILED(get_LanguageCount(&nLangs))) return E_FAIL;
	return E_FAIL;
	// TODO: temporally disabled since we don't have a new textsub/vobsub editor dlg for dvs yet
//	return(nLangs >= 0 && iSelected < nLangs ? S_OK : E_FAIL);
}

STDMETHODIMP CDirectVobSubFilter::ShowConfigDialog(int iSelected, HWND hWndParent)
{
	// TODO: temporally disabled since we don't have a new textsub/vobsub editor dlg for dvs yet
	return(E_FAIL);
}

///////////////////////////////////////////////////////////////////////////

CDirectVobSubFilter2::CDirectVobSubFilter2(LPUNKNOWN punk, HRESULT* phr, const GUID& clsid) :
	CDirectVobSubFilter(punk, phr, clsid)
{
}

HRESULT CDirectVobSubFilter2::CheckConnect(PIN_DIRECTION dir, IPin* pPin)
{
	CPinInfo pi;
	if(FAILED(pPin->QueryPinInfo(&pi))) return E_FAIL;

	if(CComQIPtr<IDirectVobSub>(pi.pFilter)) return E_FAIL;

	if(dir == PINDIR_INPUT)
	{
		CFilterInfo fi;
		if(SUCCEEDED(pi.pFilter->QueryFilterInfo(&fi))
		&& !wcsnicmp(fi.achName, L"Overlay Mixer", 13))
			return(E_FAIL);
	}
	else
	{
	}

	return __super::CheckConnect(dir, pPin);
}

HRESULT CDirectVobSubFilter2::JoinFilterGraph(IFilterGraph* pGraph, LPCWSTR pName)
{
	if(pGraph)
	{
		BeginEnumFilters(pGraph, pEF, pBF)
		{
			if(pBF != (IBaseFilter*)this && CComQIPtr<IDirectVobSub>(pBF))
				return E_FAIL;
		}
		EndEnumFilters

		// don't look... we will do some serious graph hacking again...
		//
		// we will add dvs2 to the filter graph cache
		// - if the main app has already added some kind of renderer or overlay mixer (anything which accepts video on its input)
		// and 
		// - if we have a reason to auto-load (we don't want to make any trouble when there is no need :)
		//
		// This whole workaround is needed because the video stream will always be connected 
		// to the pre-added filters first, no matter how high merit we have.

		if(!get_Forced())
		{
			BeginEnumFilters(pGraph, pEF, pBF)
			{
				if(CComQIPtr<IDirectVobSub>(pBF))
					continue;

				CComPtr<IPin> pInPin = GetFirstPin(pBF, PINDIR_INPUT);
				CComPtr<IPin> pOutPin = GetFirstPin(pBF, PINDIR_OUTPUT);

				if(!pInPin)
					continue;

				CComPtr<IPin> pPin;
				if(pInPin && SUCCEEDED(pInPin->ConnectedTo(&pPin))
				|| pOutPin && SUCCEEDED(pOutPin->ConnectedTo(&pPin)))
					continue;

				if(pOutPin && GetFilterName(pBF) == _T("Overlay Mixer")) 
					continue;

				bool fVideoInputPin = false;

				do
				{
					BITMAPINFOHEADER bih = {sizeof(BITMAPINFOHEADER), 384, 288, 1, 16, '2YUY', 384*288*2, 0, 0, 0, 0};

					CMediaType cmt;
					cmt.majortype = MEDIATYPE_Video;
					cmt.subtype = MEDIASUBTYPE_YUY2;
					cmt.formattype = FORMAT_VideoInfo;
					cmt.pUnk = NULL;
					cmt.bFixedSizeSamples = TRUE;
					cmt.bTemporalCompression = TRUE;
					cmt.lSampleSize = 384*288*2;
					VIDEOINFOHEADER* vih = (VIDEOINFOHEADER*)cmt.AllocFormatBuffer(sizeof(VIDEOINFOHEADER));
					memset(vih, 0, sizeof(VIDEOINFOHEADER));
					memcpy(&vih->bmiHeader, &bih, sizeof(bih));
					vih->AvgTimePerFrame = 400000;

					if(SUCCEEDED(pInPin->QueryAccept(&cmt))) 
					{
						fVideoInputPin = true;
						break;
					}

					VIDEOINFOHEADER2* vih2 = (VIDEOINFOHEADER2*)cmt.AllocFormatBuffer(sizeof(VIDEOINFOHEADER2));
					memset(vih2, 0, sizeof(VIDEOINFOHEADER2));
					memcpy(&vih2->bmiHeader, &bih, sizeof(bih));
					vih2->AvgTimePerFrame = 400000;
					vih2->dwPictAspectRatioX = 384;
					vih2->dwPictAspectRatioY = 288;

					if(SUCCEEDED(pInPin->QueryAccept(&cmt)))
					{
						fVideoInputPin = true;
						break;
					}
				}
				while(false);

				if(fVideoInputPin)
				{
					CComPtr<IBaseFilter> pDVS;
					if(ShouldWeAutoload(pGraph) && SUCCEEDED(pDVS.CoCreateInstance(__uuidof(CDirectVobSubFilter2))))
					{
						CComQIPtr<IDirectVobSub2>(pDVS)->put_Forced(true);
						CComQIPtr<IGraphConfig>(pGraph)->AddFilterToCache(pDVS);
					}

					break;
				}
			}
			EndEnumFilters
		}
	}
	else
	{
	}

	return __super::JoinFilterGraph(pGraph, pName);
}

HRESULT CDirectVobSubFilter2::CheckInputType(const CMediaType* mtIn)
{
    HRESULT hr = __super::CheckInputType(mtIn);

	if(FAILED(hr) || m_pInput->IsConnected()) return hr;

	if(!ShouldWeAutoload(m_pGraph)) return VFW_E_TYPE_NOT_ACCEPTED;

	GetRidOfInternalScriptRenderer();

	return NOERROR;
}

bool CDirectVobSubFilter2::ShouldWeAutoload(IFilterGraph* pGraph)
{
	TCHAR blacklistedapps[][32] = 
	{
		_T("WM8EUTIL."), // wmp8 encoder's dummy renderer releases the outputted media sample after calling Receive on its input pin (yes, even when dvobsub isn't registered at all)
		_T("explorer."), // as some users reported thumbnail preview loads dvobsub, I've never experienced this yet...
		_T("producer."), // this is real's producer
	};

	for(int i = 0; i < countof(blacklistedapps); i++)
	{
		if(theApp.m_AppName.Find(blacklistedapps[i]) >= 0) 
			return(false);
	}

	int level;
	bool m_fExternalLoad, m_fWebLoad, m_fEmbeddedLoad;
	get_LoadSettings(&level, &m_fExternalLoad, &m_fWebLoad, &m_fEmbeddedLoad);

	if(level < 0 || level >= 2) return(false);

	bool fRet = false;

	if(level == 1)
		fRet = m_fExternalLoad = m_fWebLoad = m_fEmbeddedLoad = true;

	// find text stream on known splitters

	if(!fRet && m_fEmbeddedLoad)
	{
		CComPtr<IBaseFilter> pBF;
		if((pBF = FindFilter(CLSID_OggSplitter, pGraph)) || (pBF = FindFilter(CLSID_AviSplitter, pGraph))
		|| (pBF = FindFilter(L"{34293064-02F2-41D5-9D75-CC5967ACA1AB}", pGraph)) // matroska demux
		|| (pBF = FindFilter(L"{0A68C3B5-9164-4a54-AFAF-995B2FF0E0D4}", pGraph)) // matroska source
		|| (pBF = FindFilter(L"{149D2E01-C32E-4939-80F6-C07B81015A7A}", pGraph)) // matroska splitter
		|| (pBF = FindFilter(L"{9AB95E90-1F37-427e-9B3D-257FB0CB25F7}", pGraph)) // Haali's matroska splitter (?)
		|| (pBF = FindFilter(L"{55DA30FC-F16B-49fc-BAA5-AE59FC65F82D}", pGraph)) // Haali's matroska splitter			
		|| (pBF = FindFilter(L"{52B63861-DC93-11CE-A099-00AA00479A58}", pGraph)) // 3ivx splitter
		|| (pBF = FindFilter(L"{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}", pGraph)) // our ogg source
		|| (pBF = FindFilter(L"{9FF48807-E133-40AA-826F-9B2959E5232D}", pGraph)) // our ogg splitter
		|| (pBF = FindFilter(L"{803E8280-F3CE-4201-982C-8CD8FB512004}", pGraph)) // dsm source
		|| (pBF = FindFilter(L"{0912B4DD-A30A-4568-B590-7179EBB420EC}", pGraph)) // dsm splitter
		|| (pBF = FindFilter(L"{3CCC052E-BDEE-408a-BEA7-90914EF2964B}", pGraph)) // mp4 source
		|| (pBF = FindFilter(L"{61F47056-E400-43d3-AF1E-AB7DFFD4C4AD}", pGraph))) // mp4 splitter
		{
			BeginEnumPins(pBF, pEP, pPin)
			{
				BeginEnumMediaTypes(pPin, pEM, pmt)
				{
					if(pmt->majortype == MEDIATYPE_Text || pmt->majortype == MEDIATYPE_Subtitle)
					{
						fRet = true;
						break;
					}
				}
				EndEnumMediaTypes(pmt)
				if(fRet) break;
			}
			EndEnumFilters
		}
	}

	// find file name

	CStringW fn;

	BeginEnumFilters(pGraph, pEF, pBF)
	{
		if(CComQIPtr<IFileSourceFilter> pFSF = pBF)
		{
			LPOLESTR fnw = NULL;
			if(!pFSF || FAILED(pFSF->GetCurFile(&fnw, NULL)) || !fnw)
				continue;
			fn = CString(fnw);
			CoTaskMemFree(fnw);
			break;
		}
	}
	EndEnumFilters

	if((m_fExternalLoad || m_fWebLoad) && (m_fWebLoad || !(wcsstr(fn, L"http://") || wcsstr(fn, L"mms://"))))
	{
		bool fTemp = m_fHideSubtitles;
		fRet = !fn.IsEmpty() && SUCCEEDED(put_FileName((LPWSTR)(LPCWSTR)fn))
			|| SUCCEEDED(put_FileName(L"c:\\tmp.srt")) 
			|| fRet;
		if(fTemp) m_fHideSubtitles = true;
	}

	return(fRet);
}

void CDirectVobSubFilter2::GetRidOfInternalScriptRenderer()
{
	while(CComPtr<IBaseFilter> pBF = FindFilter(L"{48025243-2D39-11CE-875D-00608CB78066}", m_pGraph))
	{
		BeginEnumPins(pBF, pEP, pPin)
		{
			PIN_DIRECTION dir;
			CComPtr<IPin> pPinTo;

			if(SUCCEEDED(pPin->QueryDirection(&dir)) && dir == PINDIR_INPUT 
			&& SUCCEEDED(pPin->ConnectedTo(&pPinTo)))
			{
				m_pGraph->Disconnect(pPinTo);
				m_pGraph->Disconnect(pPin);
				m_pGraph->ConnectDirect(pPinTo, GetPin(2 + m_pTextInput.GetCount()-1), NULL);
			}
		}
		EndEnumPins

		if(FAILED(m_pGraph->RemoveFilter(pBF)))
			break;
	}
}

///////////////////////////////////////////////////////////////////////////////

bool CDirectVobSubFilter::Open()
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	CAutoLock cAutolock(&m_csQueueLock);

	m_pSubStreams.RemoveAll();

	m_frd.files.RemoveAll();

	CAtlArray<CString> paths;

	for(int i = 0; i < 10; i++)
	{
		CString tmp;
		tmp.Format(IDS_RP_PATH, i);
		CString path = theApp.GetProfileString(ResStr(IDS_R_DEFTEXTPATHES), tmp);
		if(!path.IsEmpty()) paths.Add(path);
	}

	CAtlArray<SubFile> ret;
	GetSubFileNames(m_FileName, paths, ret);

	for(int i = 0; i < ret.GetCount(); i++)
	{
		if(m_frd.files.Find(ret[i].fn))
			continue;

		CComPtr<ISubStream> pSubStream;

		if(!pSubStream)
		{
			CAutoPtr<CVobSubFile> pVSF(new CVobSubFile(&m_csSubLock));
			if(pVSF && pVSF->Open(ret[i].fn) && pVSF->GetStreamCount() > 0)
			{
				pSubStream = pVSF.Detach();
				m_frd.files.AddTail(ret[i].fn.Left(ret[i].fn.GetLength()-4) + _T(".sub"));
			}
		}

		if(!pSubStream)
		{
			CAutoPtr<ssf::CRenderer> pSSF(new ssf::CRenderer(&m_csSubLock));
			if(pSSF && pSSF->Open(ret[i].fn) && pSSF->GetStreamCount() > 0)
			{
				pSubStream = pSSF.Detach();
			}
		}
	    
		if(!pSubStream)
		{
			CAutoPtr<CRenderedTextSubtitle> pRTS(new CRenderedTextSubtitle(&m_csSubLock));
			if(pRTS && pRTS->Open(ret[i].fn, DEFAULT_CHARSET) && pRTS->GetStreamCount() > 0)
			{
				pSubStream = pRTS.Detach();
				m_frd.files.AddTail(ret[i].fn + _T(".style"));
			}
		}
	    
		if(pSubStream)
		{
			m_pSubStreams.AddTail(pSubStream);
			m_frd.files.AddTail(ret[i].fn);
		}
	}

	for(int i = 0; i < m_pTextInput.GetCount(); i++)
	{
		if(m_pTextInput[i]->IsConnected())
			m_pSubStreams.AddTail(m_pTextInput[i]->GetSubStream());
	}

	if(S_FALSE == put_SelectedLanguage(FindPreferedLanguage()))
        UpdateSubtitle(false); // make sure pSubPicProvider of our queue gets updated even if the stream number hasn't changed

	m_frd.RefreshEvent.Set();

	return(m_pSubStreams.GetCount() > 0);
}

void CDirectVobSubFilter::UpdateSubtitle(bool fApplyDefStyle)
{
	CAutoLock cAutolock(&m_csQueueLock);

	if(!m_pSubPicQueue) return;

	InvalidateSubtitle();

	CComPtr<ISubStream> pSubStream;

	if(!m_fHideSubtitles)
	{
		int i = m_iSelectedLanguage;

		for(POSITION pos = m_pSubStreams.GetHeadPosition(); i >= 0 && pos; pSubStream = NULL)
		{
			pSubStream = m_pSubStreams.GetNext(pos);

			if(i < pSubStream->GetStreamCount()) 
			{
				CAutoLock cAutoLock(&m_csSubLock);
				pSubStream->SetStream(i);
				break;
			}

			i -= pSubStream->GetStreamCount();
		}
	}

	SetSubtitle(pSubStream, fApplyDefStyle);
}

void CDirectVobSubFilter::SetSubtitle(ISubStream* pSubStream, bool fApplyDefStyle)
{
    CAutoLock cAutolock(&m_csQueueLock);

	if(pSubStream)
	{
		CAutoLock cAutolock(&m_csSubLock);

		CLSID clsid;
		pSubStream->GetClassID(&clsid);

		if(clsid == __uuidof(CVobSubFile))
		{
			CVobSubSettings* pVSS = (CVobSubFile*)(ISubStream*)pSubStream;

			if(fApplyDefStyle)
			{
				pVSS->SetAlignment(m_fOverridePlacement, m_PlacementXperc, m_PlacementYperc, 1, 1);
				pVSS->m_fOnlyShowForcedSubs = m_fOnlyShowForcedVobSubs;
			}
		}
		else if(clsid == __uuidof(CVobSubStream))
		{
			CVobSubSettings* pVSS = (CVobSubStream*)(ISubStream*)pSubStream;

			if(fApplyDefStyle)
			{
				pVSS->SetAlignment(m_fOverridePlacement, m_PlacementXperc, m_PlacementYperc, 1, 1);
				pVSS->m_fOnlyShowForcedSubs = m_fOnlyShowForcedVobSubs;
			}
		}
		else if(clsid == __uuidof(CRenderedTextSubtitle))
		{
			CRenderedTextSubtitle* pRTS = (CRenderedTextSubtitle*)(ISubStream*)pSubStream;

			if(fApplyDefStyle || pRTS->m_fUsingAutoGeneratedDefaultStyle)
			{
				STSStyle s = m_defStyle;

				if(m_fOverridePlacement)
				{
					s.scrAlignment = 2;
					int w = pRTS->m_dstScreenSize.cx;
					int h = pRTS->m_dstScreenSize.cy;
					int mw = w - s.marginRect.left - s.marginRect.right;
					s.marginRect.bottom = h - MulDiv(h, m_PlacementYperc, 100);
					s.marginRect.left = MulDiv(w, m_PlacementXperc, 100) - mw/2;
					s.marginRect.right = w - (s.marginRect.left + mw);
				}

				pRTS->SetDefaultStyle(s);
			}

			pRTS->Deinit();
		}
	}

	if(!fApplyDefStyle)
	{
		int i = 0;

		POSITION pos = m_pSubStreams.GetHeadPosition();
		while(pos)
		{
			CComPtr<ISubStream> pSubStream2 = m_pSubStreams.GetNext(pos);

			if(pSubStream == pSubStream2)
			{
				m_iSelectedLanguage = i + pSubStream2->GetStream();
				break;
			}

			i += pSubStream2->GetStreamCount();
		}
	}

	m_nSubtitleId = (DWORD_PTR)pSubStream;

	if(m_pSubPicQueue)
		m_pSubPicQueue->SetSubPicProvider(CComQIPtr<ISubPicProvider>(pSubStream));
}

void CDirectVobSubFilter::InvalidateSubtitle(REFERENCE_TIME rtInvalidate, DWORD_PTR nSubtitleId)
{
    CAutoLock cAutolock(&m_csQueueLock);

	if(m_pSubPicQueue)
	{
		if(nSubtitleId == -1 || nSubtitleId == m_nSubtitleId)
			m_pSubPicQueue->Invalidate(rtInvalidate);
	}
}

//////////////////////////////////////////////////////////////////////////////////////////

void CDirectVobSubFilter::AddSubStream(ISubStream* pSubStream)
{
	CAutoLock cAutoLock(&m_csQueueLock);

	POSITION pos = m_pSubStreams.Find(pSubStream);
	if(!pos) m_pSubStreams.AddTail(pSubStream);

	int len = m_pTextInput.GetCount();
	for(int i = 0; i < m_pTextInput.GetCount(); i++)
		if(m_pTextInput[i]->IsConnected()) len--;

	if(len == 0)
	{
		HRESULT hr = S_OK;
		m_pTextInput.Add(new CTextInputPin(this, m_pLock, &m_csSubLock, &hr));
	}
}

void CDirectVobSubFilter::RemoveSubStream(ISubStream* pSubStream)
{
	CAutoLock cAutoLock(&m_csQueueLock);

	POSITION pos = m_pSubStreams.Find(pSubStream);
	if(pos) m_pSubStreams.RemoveAt(pos);
}

void CDirectVobSubFilter::Post_EC_OLE_EVENT(CString str, DWORD_PTR nSubtitleId)
{
	if(nSubtitleId != -1 && nSubtitleId != m_nSubtitleId)
		return;

	CComQIPtr<IMediaEventSink> pMES = m_pGraph;
	if(!pMES) return;

	CComBSTR bstr1("Text"), bstr2(" ");

	str.Trim();
	if(!str.IsEmpty()) bstr2 = CStringA(str);

	pMES->Notify(EC_OLE_EVENT, (LONG_PTR)bstr1.Detach(), (LONG_PTR)bstr2.Detach());
}

////////////////////////////////////////////////////////////////

void CDirectVobSubFilter::SetupFRD(CStringArray& paths, CAtlArray<HANDLE>& handles)
{
    CAutoLock cAutolock(&m_csSubLock);

	for(int i = 2; i < handles.GetCount(); i++)
	{
		FindCloseChangeNotification(handles[i]);
	}

	paths.RemoveAll();
	handles.RemoveAll();

	handles.Add(m_frd.EndThreadEvent);
	handles.Add(m_frd.RefreshEvent);

	m_frd.mtime.SetCount(m_frd.files.GetCount());

	POSITION pos = m_frd.files.GetHeadPosition();
	for(int i = 0; pos; i++)
	{
		CString fn = m_frd.files.GetNext(pos);

		CFileStatus status;
		if(CFileGetStatus(fn, status)) 
			m_frd.mtime[i] = status.m_mtime;

		fn.Replace('\\', '/');
		fn = fn.Left(fn.ReverseFind('/')+1);

		bool fFound = false;

		for(int j = 0; !fFound && j < paths.GetCount(); j++)
		{
			if(paths[j] == fn) fFound = true;
		}

		if(!fFound)
		{
			paths.Add(fn);

			HANDLE h = FindFirstChangeNotification(fn, FALSE, FILE_NOTIFY_CHANGE_LAST_WRITE); 
			if(h != INVALID_HANDLE_VALUE) handles.Add(h);
		}
	}
}

DWORD CDirectVobSubFilter::ThreadProc()
{	
	SetThreadPriority(m_hThread, THREAD_PRIORITY_LOWEST/*THREAD_PRIORITY_BELOW_NORMAL*/);

	CStringArray paths;
	CAtlArray<HANDLE> handles;

	SetupFRD(paths, handles);

	while(1)
	{ 
		DWORD idx = WaitForMultipleObjects(handles.GetCount(), handles.GetData(), FALSE, INFINITE);

		if(idx == (WAIT_OBJECT_0 + 0)) // m_frd.hEndThreadEvent
		{
			break;
		}
		if(idx == (WAIT_OBJECT_0 + 1)) // m_frd.hRefreshEvent
		{
			SetupFRD(paths, handles);
		}
		else if(idx >= (WAIT_OBJECT_0 + 2) && idx < (WAIT_OBJECT_0 + handles.GetCount()))
		{
			bool fLocked = true;
			IsSubtitleReloaderLocked(&fLocked);
			if(fLocked) continue;

			if(FindNextChangeNotification(handles[idx - WAIT_OBJECT_0]) == FALSE) 
				break;

			int j = 0;

			POSITION pos = m_frd.files.GetHeadPosition();
			for(int i = 0; pos && j == 0; i++)
			{
				CString fn = m_frd.files.GetNext(pos);

				CFileStatus status;
				if(CFileGetStatus(fn, status) && m_frd.mtime[i] != status.m_mtime) 
				{
					for(j = 0; j < 10; j++)
					{
						if(FILE* f = _tfopen(fn, _T("rb+"))) 
						{
							fclose(f);
							j = 0;
							break;
						}
						else
						{
							Sleep(100);
							j++;
						}
					}
				}
			}

			if(j > 0)
			{
				SetupFRD(paths, handles);
			}
			else
			{
				Sleep(500);

				POSITION pos = m_frd.files.GetHeadPosition();
				for(int i = 0; pos; i++)
				{
					CFileStatus status;
					if(CFileGetStatus(m_frd.files.GetNext(pos), status) 
						&& m_frd.mtime[i] != status.m_mtime) 
					{
						Open();
						SetupFRD(paths, handles);
						break;
					}
				}
			}
		}
		else 
		{
			break;
		}
	}

	for(int i = 2; i < handles.GetCount(); i++)
	{
		FindCloseChangeNotification(handles[i]);
	}

	return 0;
}