/* * File Source Filter * * Copyright 2003 Robert Shearman * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "quartz_private.h" #include "wine/debug.h" #include "wine/unicode.h" #include "pin.h" #include "uuids.h" #include "vfwmsgs.h" #include "winbase.h" #include "winreg.h" #include "shlwapi.h" #include <assert.h> WINE_DEFAULT_DEBUG_CHANNEL(quartz); static const WCHAR wszOutputPinName[] = { 'O','u','t','p','u','t',0 }; typedef struct AsyncReader { const IBaseFilterVtbl * lpVtbl; const IFileSourceFilterVtbl * lpVtblFSF; LONG refCount; FILTER_INFO filterInfo; FILTER_STATE state; CRITICAL_SECTION csFilter; DWORD lastpinchange; IPin * pOutputPin; LPOLESTR pszFileName; AM_MEDIA_TYPE * pmt; } AsyncReader; static const IBaseFilterVtbl AsyncReader_Vtbl; static const IFileSourceFilterVtbl FileSource_Vtbl; static const IAsyncReaderVtbl FileAsyncReader_Vtbl; static HRESULT FileAsyncReader_Construct(HANDLE hFile, IBaseFilter * pBaseFilter, LPCRITICAL_SECTION pCritSec, IPin ** ppPin); static inline AsyncReader *impl_from_IFileSourceFilter( IFileSourceFilter *iface ) { return (AsyncReader *)((char*)iface - FIELD_OFFSET(AsyncReader, lpVtblFSF)); } static WCHAR const mediatype_name[11] = { 'M', 'e', 'd', 'i', 'a', ' ', 'T', 'y', 'p', 'e', 0 }; static WCHAR const subtype_name[8] = { 'S', 'u', 'b', 't', 'y', 'p', 'e', 0 }; static HRESULT process_extensions(HKEY hkeyExtensions, LPCOLESTR pszFileName, GUID * majorType, GUID * minorType) { WCHAR *extension; LONG l; HKEY hsub; WCHAR keying[39]; DWORD size; if (!pszFileName) return E_POINTER; /* Get the part of the name that matters */ extension = PathFindExtensionW(pszFileName); if (*extension != '.') return E_FAIL; l = RegOpenKeyExW(hkeyExtensions, extension, 0, KEY_READ, &hsub); if (l) return E_FAIL; size = sizeof(keying); l = RegQueryValueExW(hsub, mediatype_name, NULL, NULL, (LPBYTE)keying, &size); if (!l) CLSIDFromString(keying, majorType); size = sizeof(keying); if (!l) l = RegQueryValueExW(hsub, subtype_name, NULL, NULL, (LPBYTE)keying, &size); if (!l) CLSIDFromString(keying, minorType); RegCloseKey(hsub); if (!l) return S_OK; return E_FAIL; } static unsigned char byte_from_hex_char(WCHAR wHex) { switch (tolowerW(wHex)) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': return (wHex - '0') & 0xf; case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': return (wHex - 'a' + 10) & 0xf; default: return 0; } } static HRESULT process_pattern_string(LPCWSTR wszPatternString, IAsyncReader * pReader) { ULONG ulOffset; ULONG ulBytes; BYTE * pbMask; BYTE * pbValue; BYTE * pbFile; HRESULT hr = S_OK; ULONG strpos; TRACE("\t\tPattern string: %s\n", debugstr_w(wszPatternString)); /* format: "offset, bytestocompare, mask, value" */ ulOffset = strtolW(wszPatternString, NULL, 10); if (!(wszPatternString = strchrW(wszPatternString, ','))) return E_INVALIDARG; wszPatternString++; /* skip ',' */ ulBytes = strtolW(wszPatternString, NULL, 10); pbMask = HeapAlloc(GetProcessHeap(), 0, ulBytes); pbValue = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ulBytes); pbFile = HeapAlloc(GetProcessHeap(), 0, ulBytes); /* default mask is match everything */ memset(pbMask, 0xFF, ulBytes); if (!(wszPatternString = strchrW(wszPatternString, ','))) hr = E_INVALIDARG; if (hr == S_OK) { wszPatternString++; /* skip ',' */ while (!isxdigitW(*wszPatternString) && (*wszPatternString != ',')) wszPatternString++; for (strpos = 0; isxdigitW(*wszPatternString) && (strpos/2 < ulBytes); wszPatternString++, strpos++) { if ((strpos % 2) == 1) /* odd numbered position */ pbMask[strpos / 2] |= byte_from_hex_char(*wszPatternString); else pbMask[strpos / 2] = byte_from_hex_char(*wszPatternString) << 4; } if (!(wszPatternString = strchrW(wszPatternString, ','))) hr = E_INVALIDARG; wszPatternString++; /* skip ',' */ } if (hr == S_OK) { for ( ; !isxdigitW(*wszPatternString) && (*wszPatternString != ','); wszPatternString++) ; for (strpos = 0; isxdigitW(*wszPatternString) && (strpos/2 < ulBytes); wszPatternString++, strpos++) { if ((strpos % 2) == 1) /* odd numbered position */ pbValue[strpos / 2] |= byte_from_hex_char(*wszPatternString); else pbValue[strpos / 2] = byte_from_hex_char(*wszPatternString) << 4; } } if (hr == S_OK) hr = IAsyncReader_SyncRead(pReader, ulOffset, ulBytes, pbFile); if (hr == S_OK) { ULONG i; for (i = 0; i < ulBytes; i++) if ((pbFile[i] & pbMask[i]) != pbValue[i]) { hr = S_FALSE; break; } } HeapFree(GetProcessHeap(), 0, pbMask); HeapFree(GetProcessHeap(), 0, pbValue); HeapFree(GetProcessHeap(), 0, pbFile); /* if we encountered no errors with this string, and there is a following tuple, then we * have to match that as well to succeed */ if ((hr == S_OK) && (wszPatternString = strchrW(wszPatternString, ','))) return process_pattern_string(wszPatternString + 1, pReader); else return hr; } static HRESULT GetClassMediaFile(IAsyncReader * pReader, LPCOLESTR pszFileName, GUID * majorType, GUID * minorType) { HKEY hkeyMediaType = NULL; LONG lRet; HRESULT hr = S_OK; BOOL bFound = FALSE; static const WCHAR wszMediaType[] = {'M','e','d','i','a',' ','T','y','p','e',0}; TRACE("(%p, %s, %p, %p)\n", pReader, debugstr_w(pszFileName), majorType, minorType); *majorType = GUID_NULL; *minorType = GUID_NULL; lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszMediaType, 0, KEY_READ, &hkeyMediaType); hr = HRESULT_FROM_WIN32(lRet); if (SUCCEEDED(hr)) { DWORD indexMajor; for (indexMajor = 0; !bFound; indexMajor++) { HKEY hkeyMajor; WCHAR wszMajorKeyName[CHARS_IN_GUID]; DWORD dwKeyNameLength = sizeof(wszMajorKeyName) / sizeof(wszMajorKeyName[0]); static const WCHAR wszExtensions[] = {'E','x','t','e','n','s','i','o','n','s',0}; if (RegEnumKeyExW(hkeyMediaType, indexMajor, wszMajorKeyName, &dwKeyNameLength, NULL, NULL, NULL, NULL) != ERROR_SUCCESS) break; if (RegOpenKeyExW(hkeyMediaType, wszMajorKeyName, 0, KEY_READ, &hkeyMajor) != ERROR_SUCCESS) break; TRACE("%s\n", debugstr_w(wszMajorKeyName)); if (!strcmpW(wszExtensions, wszMajorKeyName)) { if (process_extensions(hkeyMajor, pszFileName, majorType, minorType) == S_OK) bFound = TRUE; } else { DWORD indexMinor; for (indexMinor = 0; !bFound; indexMinor++) { HKEY hkeyMinor; WCHAR wszMinorKeyName[CHARS_IN_GUID]; DWORD dwMinorKeyNameLen = sizeof(wszMinorKeyName) / sizeof(wszMinorKeyName[0]); DWORD maxValueLen; DWORD indexValue; if (RegEnumKeyExW(hkeyMajor, indexMinor, wszMinorKeyName, &dwMinorKeyNameLen, NULL, NULL, NULL, NULL) != ERROR_SUCCESS) break; if (RegOpenKeyExW(hkeyMajor, wszMinorKeyName, 0, KEY_READ, &hkeyMinor) != ERROR_SUCCESS) break; TRACE("\t%s\n", debugstr_w(wszMinorKeyName)); if (RegQueryInfoKeyW(hkeyMinor, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, &maxValueLen, NULL, NULL) != ERROR_SUCCESS) break; for (indexValue = 0; !bFound; indexValue++) { DWORD dwType; WCHAR wszValueName[14]; /* longest name we should encounter will be "Source Filter" */ LPWSTR wszPatternString = HeapAlloc(GetProcessHeap(), 0, maxValueLen); DWORD dwValueNameLen = sizeof(wszValueName) / sizeof(wszValueName[0]); /* remember this is in chars */ DWORD dwDataLen = maxValueLen; /* remember this is in bytes */ static const WCHAR wszSourceFilter[] = {'S','o','u','r','c','e',' ','F','i','l','t','e','r',0}; LONG temp; if ((temp = RegEnumValueW(hkeyMinor, indexValue, wszValueName, &dwValueNameLen, NULL, &dwType, (LPBYTE)wszPatternString, &dwDataLen)) != ERROR_SUCCESS) { HeapFree(GetProcessHeap(), 0, wszPatternString); break; } /* if it is not the source filter value */ if (strcmpW(wszValueName, wszSourceFilter)) { if (process_pattern_string(wszPatternString, pReader) == S_OK) { if (SUCCEEDED(CLSIDFromString(wszMajorKeyName, majorType)) && SUCCEEDED(CLSIDFromString(wszMinorKeyName, minorType))) bFound = TRUE; } } HeapFree(GetProcessHeap(), 0, wszPatternString); } CloseHandle(hkeyMinor); } } CloseHandle(hkeyMajor); } } CloseHandle(hkeyMediaType); if (SUCCEEDED(hr) && !bFound) { ERR("Media class not found\n"); hr = E_FAIL; } else if (bFound) TRACE("Found file's class: major = %s, subtype = %s\n", qzdebugstr_guid(majorType), qzdebugstr_guid(minorType)); return hr; } HRESULT AsyncReader_create(IUnknown * pUnkOuter, LPVOID * ppv) { AsyncReader *pAsyncRead; if( pUnkOuter ) return CLASS_E_NOAGGREGATION; pAsyncRead = CoTaskMemAlloc(sizeof(AsyncReader)); if (!pAsyncRead) return E_OUTOFMEMORY; pAsyncRead->lpVtbl = &AsyncReader_Vtbl; pAsyncRead->lpVtblFSF = &FileSource_Vtbl; pAsyncRead->refCount = 1; pAsyncRead->filterInfo.achName[0] = '\0'; pAsyncRead->filterInfo.pGraph = NULL; pAsyncRead->pOutputPin = NULL; pAsyncRead->lastpinchange = GetTickCount(); pAsyncRead->state = State_Stopped; InitializeCriticalSection(&pAsyncRead->csFilter); pAsyncRead->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AsyncReader.csFilter"); pAsyncRead->pszFileName = NULL; pAsyncRead->pmt = NULL; *ppv = pAsyncRead; TRACE("-- created at %p\n", pAsyncRead); return S_OK; } /** IUnknown methods **/ static HRESULT WINAPI AsyncReader_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv); *ppv = NULL; if (IsEqualIID(riid, &IID_IUnknown)) *ppv = This; else if (IsEqualIID(riid, &IID_IPersist)) *ppv = This; else if (IsEqualIID(riid, &IID_IMediaFilter)) *ppv = This; else if (IsEqualIID(riid, &IID_IBaseFilter)) *ppv = This; else if (IsEqualIID(riid, &IID_IFileSourceFilter)) *ppv = &This->lpVtblFSF; if (*ppv) { IUnknown_AddRef((IUnknown *)(*ppv)); return S_OK; } if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IMediaSeeking) && !IsEqualIID(riid, &IID_IVideoWindow) && !IsEqualIID(riid, &IID_IBasicAudio)) FIXME("No interface for %s!\n", qzdebugstr_guid(riid)); return E_NOINTERFACE; } static ULONG WINAPI AsyncReader_AddRef(IBaseFilter * iface) { AsyncReader *This = (AsyncReader *)iface; ULONG refCount = InterlockedIncrement(&This->refCount); TRACE("(%p)->() AddRef from %d\n", This, refCount - 1); return refCount; } static ULONG WINAPI AsyncReader_Release(IBaseFilter * iface) { AsyncReader *This = (AsyncReader *)iface; ULONG refCount = InterlockedDecrement(&This->refCount); TRACE("(%p)->() Release from %d\n", This, refCount + 1); if (!refCount) { if (This->pOutputPin) { IPin *pConnectedTo; if(SUCCEEDED(IPin_ConnectedTo(This->pOutputPin, &pConnectedTo))) { IPin_Disconnect(pConnectedTo); IPin_Release(pConnectedTo); } IPin_Disconnect(This->pOutputPin); IPin_Release(This->pOutputPin); } This->csFilter.DebugInfo->Spare[0] = 0; DeleteCriticalSection(&This->csFilter); This->lpVtbl = NULL; CoTaskMemFree(This->pszFileName); if (This->pmt) FreeMediaType(This->pmt); CoTaskMemFree(This); return 0; } else return refCount; } /** IPersist methods **/ static HRESULT WINAPI AsyncReader_GetClassID(IBaseFilter * iface, CLSID * pClsid) { TRACE("(%p)\n", pClsid); *pClsid = CLSID_AsyncReader; return S_OK; } /** IMediaFilter methods **/ static HRESULT WINAPI AsyncReader_Stop(IBaseFilter * iface) { AsyncReader *This = (AsyncReader *)iface; TRACE("()\n"); This->state = State_Stopped; return S_OK; } static HRESULT WINAPI AsyncReader_Pause(IBaseFilter * iface) { AsyncReader *This = (AsyncReader *)iface; TRACE("()\n"); This->state = State_Paused; return S_OK; } static HRESULT WINAPI AsyncReader_Run(IBaseFilter * iface, REFERENCE_TIME tStart) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%x%08x)\n", (ULONG)(tStart >> 32), (ULONG)tStart); This->state = State_Running; return S_OK; } static HRESULT WINAPI AsyncReader_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%u, %p)\n", dwMilliSecsTimeout, pState); *pState = This->state; return S_OK; } static HRESULT WINAPI AsyncReader_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock) { /* AsyncReader *This = (AsyncReader *)iface;*/ TRACE("(%p)\n", pClock); return S_OK; } static HRESULT WINAPI AsyncReader_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock) { /* AsyncReader *This = (AsyncReader *)iface;*/ TRACE("(%p)\n", ppClock); return S_OK; } /** IBaseFilter methods **/ static HRESULT AsyncReader_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick) { AsyncReader *This = (AsyncReader *)iface; /* Our pins are almost static, not changing so setting static tick count is ok */ *lastsynctick = This->lastpinchange; if (pos >= 1 || !This->pOutputPin) return S_FALSE; *pin = This->pOutputPin; IPin_AddRef(*pin); return S_OK; } static HRESULT WINAPI AsyncReader_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum); return IEnumPinsImpl_Construct(ppEnum, AsyncReader_GetPin, iface); } static HRESULT WINAPI AsyncReader_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin) { FIXME("(%s, %p)\n", debugstr_w(Id), ppPin); return E_NOTIMPL; } static HRESULT WINAPI AsyncReader_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%p)\n", pInfo); strcpyW(pInfo->achName, This->filterInfo.achName); pInfo->pGraph = This->filterInfo.pGraph; if (pInfo->pGraph) IFilterGraph_AddRef(pInfo->pGraph); return S_OK; } static HRESULT WINAPI AsyncReader_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName) { AsyncReader *This = (AsyncReader *)iface; TRACE("(%p, %s)\n", pGraph, debugstr_w(pName)); if (pName) strcpyW(This->filterInfo.achName, pName); else *This->filterInfo.achName = 0; This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */ return S_OK; } static HRESULT WINAPI AsyncReader_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo) { FIXME("(%p)\n", pVendorInfo); return E_NOTIMPL; } static const IBaseFilterVtbl AsyncReader_Vtbl = { AsyncReader_QueryInterface, AsyncReader_AddRef, AsyncReader_Release, AsyncReader_GetClassID, AsyncReader_Stop, AsyncReader_Pause, AsyncReader_Run, AsyncReader_GetState, AsyncReader_SetSyncSource, AsyncReader_GetSyncSource, AsyncReader_EnumPins, AsyncReader_FindPin, AsyncReader_QueryFilterInfo, AsyncReader_JoinFilterGraph, AsyncReader_QueryVendorInfo }; static HRESULT WINAPI FileSource_QueryInterface(IFileSourceFilter * iface, REFIID riid, LPVOID * ppv) { AsyncReader *This = impl_from_IFileSourceFilter(iface); return IBaseFilter_QueryInterface((IFileSourceFilter*)&This->lpVtbl, riid, ppv); } static ULONG WINAPI FileSource_AddRef(IFileSourceFilter * iface) { AsyncReader *This = impl_from_IFileSourceFilter(iface); return IBaseFilter_AddRef((IFileSourceFilter*)&This->lpVtbl); } static ULONG WINAPI FileSource_Release(IFileSourceFilter * iface) { AsyncReader *This = impl_from_IFileSourceFilter(iface); return IBaseFilter_Release((IFileSourceFilter*)&This->lpVtbl); } static HRESULT WINAPI FileSource_Load(IFileSourceFilter * iface, LPCOLESTR pszFileName, const AM_MEDIA_TYPE * pmt) { HRESULT hr; HANDLE hFile; IAsyncReader * pReader = NULL; AsyncReader *This = impl_from_IFileSourceFilter(iface); TRACE("(%s, %p)\n", debugstr_w(pszFileName), pmt); /* open file */ /* FIXME: check the sharing values that native uses */ hFile = CreateFileW(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); if (hFile == INVALID_HANDLE_VALUE) { return HRESULT_FROM_WIN32(GetLastError()); } /* create pin */ hr = FileAsyncReader_Construct(hFile, (IBaseFilter *)&This->lpVtbl, &This->csFilter, &This->pOutputPin); This->lastpinchange = GetTickCount(); if (SUCCEEDED(hr)) hr = IPin_QueryInterface(This->pOutputPin, &IID_IAsyncReader, (LPVOID *)&pReader); /* store file name & media type */ if (SUCCEEDED(hr)) { CoTaskMemFree(This->pszFileName); if (This->pmt) FreeMediaType(This->pmt); This->pszFileName = CoTaskMemAlloc((strlenW(pszFileName) + 1) * sizeof(WCHAR)); strcpyW(This->pszFileName, pszFileName); This->pmt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE)); if (!pmt) { This->pmt->bFixedSizeSamples = TRUE; This->pmt->bTemporalCompression = FALSE; This->pmt->cbFormat = 0; This->pmt->pbFormat = NULL; This->pmt->pUnk = NULL; This->pmt->lSampleSize = 0; This->pmt->formattype = FORMAT_None; hr = GetClassMediaFile(pReader, pszFileName, &This->pmt->majortype, &This->pmt->subtype); if (FAILED(hr)) { CoTaskMemFree(This->pmt); This->pmt = NULL; } } else CopyMediaType(This->pmt, pmt); } if (pReader) IAsyncReader_Release(pReader); if (FAILED(hr)) { if (This->pOutputPin) { IPin_Release(This->pOutputPin); This->pOutputPin = NULL; } CoTaskMemFree(This->pszFileName); if (This->pmt) FreeMediaType(This->pmt); This->pszFileName = NULL; This->pmt = NULL; CloseHandle(hFile); } /* FIXME: check return codes */ return hr; } static HRESULT WINAPI FileSource_GetCurFile(IFileSourceFilter * iface, LPOLESTR * ppszFileName, AM_MEDIA_TYPE * pmt) { AsyncReader *This = impl_from_IFileSourceFilter(iface); TRACE("(%p, %p)\n", ppszFileName, pmt); if (!ppszFileName) return E_POINTER; /* copy file name & media type if available, otherwise clear the outputs */ if (This->pszFileName) { *ppszFileName = CoTaskMemAlloc((strlenW(This->pszFileName) + 1) * sizeof(WCHAR)); strcpyW(*ppszFileName, This->pszFileName); } else *ppszFileName = NULL; if (pmt) { if (This->pmt) CopyMediaType(pmt, This->pmt); else ZeroMemory(pmt, sizeof(*pmt)); } return S_OK; } static const IFileSourceFilterVtbl FileSource_Vtbl = { FileSource_QueryInterface, FileSource_AddRef, FileSource_Release, FileSource_Load, FileSource_GetCurFile }; /* the dwUserData passed back to user */ typedef struct DATAREQUEST { IMediaSample * pSample; /* sample passed to us by user */ DWORD_PTR dwUserData; /* user data passed to us */ OVERLAPPED ovl; /* our overlapped structure */ } DATAREQUEST; typedef struct FileAsyncReader { OutputPin pin; const struct IAsyncReaderVtbl * lpVtblAR; HANDLE hFile; BOOL bFlushing; /* Why would you need more? Every sample has its own handle */ LONG queued_number; LONG samples; LONG oldest_sample; CRITICAL_SECTION csList; /* critical section to prevent concurrency issues */ DATAREQUEST *sample_list; /* Have a handle for every sample, and then one more as flushing handle */ HANDLE *handle_list; } FileAsyncReader; static inline FileAsyncReader *impl_from_IAsyncReader( IAsyncReader *iface ) { return (FileAsyncReader *)((char*)iface - FIELD_OFFSET(FileAsyncReader, lpVtblAR)); } static HRESULT AcceptProcAFR(LPVOID iface, const AM_MEDIA_TYPE *pmt) { AsyncReader *This = iface; FIXME("(%p, %p)\n", iface, pmt); if (IsEqualGUID(&pmt->majortype, &This->pmt->majortype) && IsEqualGUID(&pmt->subtype, &This->pmt->subtype) && IsEqualGUID(&pmt->formattype, &FORMAT_None)) return S_OK; return S_FALSE; } /* overridden pin functions */ static HRESULT WINAPI FileAsyncReaderPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv) { FileAsyncReader *This = (FileAsyncReader *)iface; TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv); *ppv = NULL; if (IsEqualIID(riid, &IID_IUnknown)) *ppv = This; else if (IsEqualIID(riid, &IID_IPin)) *ppv = This; else if (IsEqualIID(riid, &IID_IAsyncReader)) *ppv = &This->lpVtblAR; if (*ppv) { IUnknown_AddRef((IUnknown *)(*ppv)); return S_OK; } if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IMediaSeeking)) FIXME("No interface for %s!\n", qzdebugstr_guid(riid)); return E_NOINTERFACE; } static ULONG WINAPI FileAsyncReaderPin_Release(IPin * iface) { FileAsyncReader *This = (FileAsyncReader *)iface; ULONG refCount = InterlockedDecrement(&This->pin.pin.refCount); int x; TRACE("(%p)->() Release from %d\n", This, refCount + 1); if (!refCount) { CoTaskMemFree(This->sample_list); if (This->handle_list) { for (x = 0; x <= This->samples; ++x) CloseHandle(This->handle_list[x]); CoTaskMemFree(This->handle_list); } CloseHandle(This->hFile); This->csList.DebugInfo->Spare[0] = 0; DeleteCriticalSection(&This->csList); CoTaskMemFree(This); return 0; } return refCount; } static HRESULT WINAPI FileAsyncReaderPin_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum) { ENUMMEDIADETAILS emd; FileAsyncReader *This = (FileAsyncReader *)iface; TRACE("(%p)\n", ppEnum); emd.cMediaTypes = 1; emd.pMediaTypes = ((AsyncReader *)This->pin.pin.pinInfo.pFilter)->pmt; return IEnumMediaTypesImpl_Construct(&emd, ppEnum); } static const IPinVtbl FileAsyncReaderPin_Vtbl = { FileAsyncReaderPin_QueryInterface, IPinImpl_AddRef, FileAsyncReaderPin_Release, OutputPin_Connect, OutputPin_ReceiveConnection, IPinImpl_Disconnect, IPinImpl_ConnectedTo, IPinImpl_ConnectionMediaType, IPinImpl_QueryPinInfo, IPinImpl_QueryDirection, IPinImpl_QueryId, IPinImpl_QueryAccept, FileAsyncReaderPin_EnumMediaTypes, IPinImpl_QueryInternalConnections, OutputPin_EndOfStream, OutputPin_BeginFlush, OutputPin_EndFlush, OutputPin_NewSegment }; /* Function called as a helper to IPin_Connect */ /* specific AM_MEDIA_TYPE - it cannot be NULL */ /* this differs from standard OutputPin_ConnectSpecific only in that it * doesn't need the IMemInputPin interface on the receiving pin */ static HRESULT FileAsyncReaderPin_ConnectSpecific(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt) { OutputPin *This = (OutputPin *)iface; HRESULT hr; TRACE("(%p, %p)\n", pReceivePin, pmt); dump_AM_MEDIA_TYPE(pmt); /* FIXME: call queryacceptproc */ This->pin.pConnectedTo = pReceivePin; IPin_AddRef(pReceivePin); CopyMediaType(&This->pin.mtCurrent, pmt); hr = IPin_ReceiveConnection(pReceivePin, iface, pmt); if (FAILED(hr)) { IPin_Release(This->pin.pConnectedTo); This->pin.pConnectedTo = NULL; FreeMediaType(&This->pin.mtCurrent); } TRACE(" -- %x\n", hr); return hr; } static HRESULT FileAsyncReader_Construct(HANDLE hFile, IBaseFilter * pBaseFilter, LPCRITICAL_SECTION pCritSec, IPin ** ppPin) { PIN_INFO piOutput; HRESULT hr; *ppPin = NULL; piOutput.dir = PINDIR_OUTPUT; piOutput.pFilter = pBaseFilter; strcpyW(piOutput.achName, wszOutputPinName); hr = OutputPin_Construct(&FileAsyncReaderPin_Vtbl, sizeof(FileAsyncReader), &piOutput, NULL, pBaseFilter, AcceptProcAFR, pCritSec, ppPin); if (SUCCEEDED(hr)) { FileAsyncReader *pPinImpl = (FileAsyncReader *)*ppPin; pPinImpl->lpVtblAR = &FileAsyncReader_Vtbl; pPinImpl->hFile = hFile; pPinImpl->bFlushing = FALSE; pPinImpl->sample_list = NULL; pPinImpl->handle_list = NULL; pPinImpl->queued_number = 0; pPinImpl->pin.pConnectSpecific = FileAsyncReaderPin_ConnectSpecific; InitializeCriticalSection(&pPinImpl->csList); pPinImpl->csList.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FileAsyncReader.csList"); } return hr; } /* IAsyncReader */ static HRESULT WINAPI FileAsyncReader_QueryInterface(IAsyncReader * iface, REFIID riid, LPVOID * ppv) { FileAsyncReader *This = impl_from_IAsyncReader(iface); return IPin_QueryInterface((IPin *)This, riid, ppv); } static ULONG WINAPI FileAsyncReader_AddRef(IAsyncReader * iface) { FileAsyncReader *This = impl_from_IAsyncReader(iface); return IPin_AddRef((IPin *)This); } static ULONG WINAPI FileAsyncReader_Release(IAsyncReader * iface) { FileAsyncReader *This = impl_from_IAsyncReader(iface); return IPin_Release((IPin *)This); } #define DEF_ALIGNMENT 1 static HRESULT WINAPI FileAsyncReader_RequestAllocator(IAsyncReader * iface, IMemAllocator * pPreferred, ALLOCATOR_PROPERTIES * pProps, IMemAllocator ** ppActual) { FileAsyncReader *This = impl_from_IAsyncReader(iface); HRESULT hr = S_OK; TRACE("(%p, %p, %p)\n", pPreferred, pProps, ppActual); if (!pProps->cbAlign || (pProps->cbAlign % DEF_ALIGNMENT) != 0) pProps->cbAlign = DEF_ALIGNMENT; if (pPreferred) { hr = IMemAllocator_SetProperties(pPreferred, pProps, pProps); /* FIXME: check we are still aligned */ if (SUCCEEDED(hr)) { IMemAllocator_AddRef(pPreferred); *ppActual = pPreferred; TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr); goto done; } } pPreferred = NULL; hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC, &IID_IMemAllocator, (LPVOID *)&pPreferred); if (SUCCEEDED(hr)) { hr = IMemAllocator_SetProperties(pPreferred, pProps, pProps); /* FIXME: check we are still aligned */ if (SUCCEEDED(hr)) { *ppActual = pPreferred; TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr); } } done: if (SUCCEEDED(hr)) { CoTaskMemFree(This->sample_list); if (This->handle_list) { int x; for (x = 0; x <= This->samples; ++x) CloseHandle(This->handle_list[x]); CoTaskMemFree(This->handle_list); } This->samples = pProps->cBuffers; This->oldest_sample = 0; TRACE("Samples: %u\n", This->samples); This->sample_list = CoTaskMemAlloc(sizeof(This->sample_list[0]) * pProps->cBuffers); This->handle_list = CoTaskMemAlloc(sizeof(HANDLE) * pProps->cBuffers * 2); if (This->sample_list && This->handle_list) { int x; ZeroMemory(This->sample_list, sizeof(This->sample_list[0]) * pProps->cBuffers); for (x = 0; x < This->samples; ++x) { This->sample_list[x].ovl.hEvent = This->handle_list[x] = CreateEventW(NULL, 0, 0, NULL); if (x + 1 < This->samples) This->handle_list[This->samples + 1 + x] = This->handle_list[x]; } This->handle_list[This->samples] = CreateEventW(NULL, 1, 0, NULL); This->pin.allocProps = *pProps; } else { hr = E_OUTOFMEMORY; CoTaskMemFree(This->sample_list); CoTaskMemFree(This->handle_list); This->samples = 0; This->sample_list = NULL; This->handle_list = NULL; } } if (FAILED(hr)) { *ppActual = NULL; if (pPreferred) IMemAllocator_Release(pPreferred); } TRACE("-- %x\n", hr); return hr; } /* we could improve the Request/WaitForNext mechanism by allowing out of order samples. * however, this would be quite complicated to do and may be a bit error prone */ static HRESULT WINAPI FileAsyncReader_Request(IAsyncReader * iface, IMediaSample * pSample, DWORD_PTR dwUser) { HRESULT hr = S_OK; REFERENCE_TIME Start; REFERENCE_TIME Stop; FileAsyncReader *This = impl_from_IAsyncReader(iface); LPBYTE pBuffer = NULL; TRACE("(%p, %lx)\n", pSample, dwUser); if (!pSample) return E_POINTER; /* get start and stop positions in bytes */ if (SUCCEEDED(hr)) hr = IMediaSample_GetTime(pSample, &Start, &Stop); if (SUCCEEDED(hr)) hr = IMediaSample_GetPointer(pSample, &pBuffer); EnterCriticalSection(&This->csList); if (This->bFlushing) { LeaveCriticalSection(&This->csList); return VFW_E_WRONG_STATE; } if (SUCCEEDED(hr)) { DWORD dwLength = (DWORD) BYTES_FROM_MEDIATIME(Stop - Start); DATAREQUEST *pDataRq; int x; /* Try to insert above the waiting sample if possible */ for (x = This->oldest_sample; x < This->samples; ++x) { if (!This->sample_list[x].pSample) break; } if (x >= This->samples) for (x = 0; x < This->oldest_sample; ++x) { if (!This->sample_list[x].pSample) break; } /* There must be a sample we have found */ assert(x < This->samples); ++This->queued_number; pDataRq = This->sample_list + x; pDataRq->ovl.u.s.Offset = (DWORD) BYTES_FROM_MEDIATIME(Start); pDataRq->ovl.u.s.OffsetHigh = (DWORD)(BYTES_FROM_MEDIATIME(Start) >> (sizeof(DWORD) * 8)); pDataRq->dwUserData = dwUser; /* we violate traditional COM rules here by maintaining * a reference to the sample, but not calling AddRef, but * that's what MSDN says to do */ pDataRq->pSample = pSample; /* this is definitely not how it is implemented on Win9x * as they do not support async reads on files, but it is * sooo much easier to use this than messing around with threads! */ if (!ReadFile(This->hFile, pBuffer, dwLength, NULL, &pDataRq->ovl)) hr = HRESULT_FROM_WIN32(GetLastError()); /* ERROR_IO_PENDING is not actually an error since this is what we want! */ if (hr == HRESULT_FROM_WIN32(ERROR_IO_PENDING)) hr = S_OK; } LeaveCriticalSection(&This->csList); TRACE("-- %x\n", hr); return hr; } static HRESULT WINAPI FileAsyncReader_WaitForNext(IAsyncReader * iface, DWORD dwTimeout, IMediaSample ** ppSample, DWORD_PTR * pdwUser) { HRESULT hr = S_OK; FileAsyncReader *This = impl_from_IAsyncReader(iface); DWORD buffer = ~0; TRACE("(%u, %p, %p)\n", dwTimeout, ppSample, pdwUser); *ppSample = NULL; *pdwUser = 0; EnterCriticalSection(&This->csList); if (!This->bFlushing) { LONG oldest = This->oldest_sample; if (!This->queued_number) { /* It could be that nothing is queued right now, but that can be fixed */ WARN("Called without samples in queue and not flushing!!\n"); } LeaveCriticalSection(&This->csList); /* wait for an object to read, or time out */ buffer = WaitForMultipleObjectsEx(This->samples+1, This->handle_list + oldest, FALSE, dwTimeout, TRUE); EnterCriticalSection(&This->csList); if (buffer <= This->samples) { /* Re-scale the buffer back to normal */ buffer += oldest; /* Uh oh, we overshot the flusher handle, renormalize it back to 0..Samples-1 */ if (buffer > This->samples) buffer -= This->samples + 1; assert(buffer <= This->samples); } if (buffer >= This->samples) { if (buffer != This->samples) { FIXME("Returned: %u (%08x)\n", buffer, GetLastError()); hr = VFW_E_TIMEOUT; } else hr = VFW_E_WRONG_STATE; buffer = ~0; } else --This->queued_number; } if (This->bFlushing && buffer == ~0) { for (buffer = 0; buffer < This->samples; ++buffer) { if (This->sample_list[buffer].pSample) { ResetEvent(This->handle_list[buffer]); break; } } if (buffer == This->samples) { assert(!This->queued_number); hr = VFW_E_TIMEOUT; } else { --This->queued_number; hr = S_OK; } } if (SUCCEEDED(hr)) { REFERENCE_TIME rtStart, rtStop; REFERENCE_TIME rtSampleStart, rtSampleStop; DATAREQUEST *pDataRq = This->sample_list + buffer; DWORD dwBytes = 0; /* get any errors */ if (!This->bFlushing && !GetOverlappedResult(This->hFile, &pDataRq->ovl, &dwBytes, FALSE)) hr = HRESULT_FROM_WIN32(GetLastError()); /* Return the sample no matter what so it can be destroyed */ *ppSample = pDataRq->pSample; *pdwUser = pDataRq->dwUserData; if (This->bFlushing) hr = VFW_E_WRONG_STATE; if (FAILED(hr)) dwBytes = 0; /* Set the time on the sample */ IMediaSample_SetActualDataLength(pDataRq->pSample, dwBytes); rtStart = (DWORD64)pDataRq->ovl.u.s.Offset + ((DWORD64)pDataRq->ovl.u.s.OffsetHigh << 32); rtStart = MEDIATIME_FROM_BYTES(rtStart); rtStop = rtStart + MEDIATIME_FROM_BYTES(dwBytes); IMediaSample_GetTime(pDataRq->pSample, &rtSampleStart, &rtSampleStop); assert(rtStart == rtSampleStart); assert(rtStop <= rtSampleStop); IMediaSample_SetTime(pDataRq->pSample, &rtStart, &rtStop); assert(rtStart == rtSampleStart); if (hr == S_OK) assert(rtStop == rtSampleStop); else assert(rtStop == rtStart); This->sample_list[buffer].pSample = NULL; assert(This->oldest_sample < This->samples); if (buffer == This->oldest_sample) { LONG x; for (x = This->oldest_sample + 1; x < This->samples; ++x) if (This->sample_list[x].pSample) break; if (x >= This->samples) for (x = 0; x < This->oldest_sample; ++x) if (This->sample_list[x].pSample) break; if (This->oldest_sample == x) /* No samples found, reset to 0 */ x = 0; This->oldest_sample = x; } } LeaveCriticalSection(&This->csList); TRACE("-- %x\n", hr); return hr; } static HRESULT WINAPI FileAsyncReader_SyncRead(IAsyncReader * iface, LONGLONG llPosition, LONG lLength, BYTE * pBuffer); static HRESULT WINAPI FileAsyncReader_SyncReadAligned(IAsyncReader * iface, IMediaSample * pSample) { BYTE * pBuffer; REFERENCE_TIME tStart; REFERENCE_TIME tStop; HRESULT hr; TRACE("(%p)\n", pSample); hr = IMediaSample_GetTime(pSample, &tStart, &tStop); if (SUCCEEDED(hr)) hr = IMediaSample_GetPointer(pSample, &pBuffer); if (SUCCEEDED(hr)) hr = FileAsyncReader_SyncRead(iface, BYTES_FROM_MEDIATIME(tStart), (LONG) BYTES_FROM_MEDIATIME(tStop - tStart), pBuffer); TRACE("-- %x\n", hr); return hr; } static HRESULT WINAPI FileAsyncReader_SyncRead(IAsyncReader * iface, LONGLONG llPosition, LONG lLength, BYTE * pBuffer) { OVERLAPPED ovl; HRESULT hr = S_OK; FileAsyncReader *This = impl_from_IAsyncReader(iface); TRACE("(%x%08x, %d, %p)\n", (ULONG)(llPosition >> 32), (ULONG)llPosition, lLength, pBuffer); ZeroMemory(&ovl, sizeof(ovl)); ovl.hEvent = CreateEventW(NULL, 0, 0, NULL); /* NOTE: llPosition is the actual byte position to start reading from */ ovl.u.s.Offset = (DWORD) llPosition; ovl.u.s.OffsetHigh = (DWORD) (llPosition >> (sizeof(DWORD) * 8)); if (!ReadFile(This->hFile, pBuffer, lLength, NULL, &ovl)) hr = HRESULT_FROM_WIN32(GetLastError()); if (hr == HRESULT_FROM_WIN32(ERROR_IO_PENDING)) hr = S_OK; if (SUCCEEDED(hr)) { DWORD dwBytesRead; if (!GetOverlappedResult(This->hFile, &ovl, &dwBytesRead, TRUE)) hr = HRESULT_FROM_WIN32(GetLastError()); } CloseHandle(ovl.hEvent); TRACE("-- %x\n", hr); return hr; } static HRESULT WINAPI FileAsyncReader_Length(IAsyncReader * iface, LONGLONG * pTotal, LONGLONG * pAvailable) { DWORD dwSizeLow; DWORD dwSizeHigh; FileAsyncReader *This = impl_from_IAsyncReader(iface); TRACE("(%p, %p)\n", pTotal, pAvailable); if (((dwSizeLow = GetFileSize(This->hFile, &dwSizeHigh)) == -1) && (GetLastError() != NO_ERROR)) return HRESULT_FROM_WIN32(GetLastError()); *pTotal = (LONGLONG)dwSizeLow | (LONGLONG)dwSizeHigh << (sizeof(DWORD) * 8); *pAvailable = *pTotal; return S_OK; } static HRESULT WINAPI FileAsyncReader_BeginFlush(IAsyncReader * iface) { FileAsyncReader *This = impl_from_IAsyncReader(iface); TRACE("()\n"); EnterCriticalSection(&This->csList); This->bFlushing = TRUE; CancelIo(This->hFile); SetEvent(This->handle_list[This->samples]); LeaveCriticalSection(&This->csList); return S_OK; } static HRESULT WINAPI FileAsyncReader_EndFlush(IAsyncReader * iface) { FileAsyncReader *This = impl_from_IAsyncReader(iface); int x; TRACE("()\n"); EnterCriticalSection(&This->csList); ResetEvent(This->handle_list[This->samples]); This->bFlushing = FALSE; for (x = 0; x < This->samples; ++x) assert(!This->sample_list[x].pSample); LeaveCriticalSection(&This->csList); return S_OK; } static const IAsyncReaderVtbl FileAsyncReader_Vtbl = { FileAsyncReader_QueryInterface, FileAsyncReader_AddRef, FileAsyncReader_Release, FileAsyncReader_RequestAllocator, FileAsyncReader_Request, FileAsyncReader_WaitForNext, FileAsyncReader_SyncReadAligned, FileAsyncReader_SyncRead, FileAsyncReader_Length, FileAsyncReader_BeginFlush, FileAsyncReader_EndFlush, };