DirectVobSubFilter.cpp

/* 
 *      Copyright (C) 2003-2005 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"
#include "..\..\..\..\include\Ogg\OggDS.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.GetSize(); 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);

        // 

        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.GetSize())
                return m_pTextInput[n]; 

        n -= m_pTextInput.GetSize();

        return NULL;
}

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

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);
        CSize window(m_w, m_h);
        if(AdjustFrameSize(window)) video += video;
        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;
        if(fRet = (resx2 == 1) || (resx2 == 2 && s.cx*s.cy <= resx2minw*resx2minh))
        {
                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
                {
                        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.GetSize()-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();

        CStringArray 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);
        }

        SubFiles ret;
        GetSubFileNames(m_FileName, paths, ret);

        for(int i = 0; i < ret.GetSize(); 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<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.GetSize(); 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.GetSize();
        for(int i = 0; i < m_pTextInput.GetSize(); 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, CArray<HANDLE>& handles)
{
    CAutoLock cAutolock(&m_csSubLock);

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

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

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

        m_frd.mtime.SetSize(m_frd.files.GetSize());

        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.GetSize(); 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;
        CArray<HANDLE> handles;

        SetupFRD(paths, handles);

        while(1)
        { 
                DWORD idx = WaitForMultipleObjects(handles.GetSize(), 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.GetSize()))
                {
                        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.GetSize(); i++)
        {
                FindCloseChangeNotification(handles[i]);
        }

        return 0;
}

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