| /* |
| * 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; |
| |
| 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; |
| |
| 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 */ |
| 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); |
| |
| CopyMemory(majorType, &GUID_NULL, sizeof(*majorType)); |
| CopyMemory(minorType, &GUID_NULL, sizeof(*minorType)); |
| |
| 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; |
| |
| InitializeCriticalSection(&pAsyncRead->csFilter); |
| pAsyncRead->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AsyncReader.csFilter"); |
| |
| pAsyncRead->pszFileName = NULL; |
| pAsyncRead->pmt = NULL; |
| |
| *ppv = (LPVOID)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 = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IPersist)) |
| *ppv = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IMediaFilter)) |
| *ppv = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IBaseFilter)) |
| *ppv = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IFileSourceFilter)) |
| *ppv = (LPVOID)(&This->lpVtblFSF); |
| |
| if (*ppv) |
| { |
| IUnknown_AddRef((IUnknown *)(*ppv)); |
| return S_OK; |
| } |
| |
| 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); |
| 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 WINAPI AsyncReader_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum) |
| { |
| ENUMPINDETAILS epd; |
| AsyncReader *This = (AsyncReader *)iface; |
| |
| TRACE("(%p)\n", ppEnum); |
| |
| epd.cPins = This->pOutputPin ? 1 : 0; |
| epd.ppPins = &This->pOutputPin; |
| return IEnumPinsImpl_Construct(&epd, ppEnum); |
| } |
| |
| 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); |
| |
| if (SUCCEEDED(hr)) |
| hr = IPin_QueryInterface(This->pOutputPin, &IID_IAsyncReader, (LPVOID *)&pReader); |
| |
| /* store file name & media type */ |
| if (SUCCEEDED(hr)) |
| { |
| 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); |
| This->pszFileName = 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 */ |
| |
| struct DATAREQUEST * pNext; /* next data request in list */ |
| } DATAREQUEST; |
| |
| static void queue(DATAREQUEST * pHead, DATAREQUEST * pItem) |
| { |
| DATAREQUEST * pCurrent; |
| for (pCurrent = pHead; pCurrent->pNext; pCurrent = pCurrent->pNext) |
| ; |
| pCurrent->pNext = pItem; |
| } |
| |
| typedef struct FileAsyncReader |
| { |
| OutputPin pin; |
| const struct IAsyncReaderVtbl * lpVtblAR; |
| |
| HANDLE hFile; |
| HANDLE hEvent; |
| BOOL bFlushing; |
| DATAREQUEST * pHead; /* head of data request list */ |
| CRITICAL_SECTION csList; /* critical section to protect operations on 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 = (AsyncReader *)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; |
| } |
| |
| /* overriden 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 = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IPin)) |
| *ppv = (LPVOID)This; |
| else if (IsEqualIID(riid, &IID_IAsyncReader)) |
| *ppv = (LPVOID)&This->lpVtblAR; |
| |
| if (*ppv) |
| { |
| IUnknown_AddRef((IUnknown *)(*ppv)); |
| return S_OK; |
| } |
| |
| 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); |
| |
| TRACE("(%p)->() Release from %d\n", This, refCount + 1); |
| |
| if (!refCount) |
| { |
| DATAREQUEST * pCurrent; |
| DATAREQUEST * pNext; |
| for (pCurrent = This->pHead; pCurrent; pCurrent = pNext) |
| { |
| pNext = pCurrent->pNext; |
| CoTaskMemFree(pCurrent); |
| } |
| CloseHandle(This->hFile); |
| CloseHandle(This->hEvent); |
| 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) |
| { |
| FileAsyncReader * pPinImpl; |
| PIN_INFO piOutput; |
| |
| *ppPin = NULL; |
| |
| pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl)); |
| |
| if (!pPinImpl) |
| return E_OUTOFMEMORY; |
| |
| piOutput.dir = PINDIR_OUTPUT; |
| piOutput.pFilter = pBaseFilter; |
| strcpyW(piOutput.achName, wszOutputPinName); |
| |
| if (SUCCEEDED(OutputPin_Init(&piOutput, NULL, pBaseFilter, AcceptProcAFR, pCritSec, &pPinImpl->pin))) |
| { |
| pPinImpl->pin.pin.lpVtbl = &FileAsyncReaderPin_Vtbl; |
| pPinImpl->lpVtblAR = &FileAsyncReader_Vtbl; |
| pPinImpl->hFile = hFile; |
| pPinImpl->hEvent = CreateEventW(NULL, 0, 0, NULL); |
| pPinImpl->bFlushing = FALSE; |
| pPinImpl->pHead = NULL; |
| pPinImpl->pin.pConnectSpecific = FileAsyncReaderPin_ConnectSpecific; |
| InitializeCriticalSection(&pPinImpl->csList); |
| pPinImpl->csList.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FileAsyncReader.csList"); |
| |
| *ppPin = (IPin *)(&pPinImpl->pin.pin.lpVtbl); |
| return S_OK; |
| } |
| |
| CoTaskMemFree(pPinImpl); |
| return E_FAIL; |
| } |
| |
| /* 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) |
| { |
| 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) |
| { |
| ALLOCATOR_PROPERTIES PropsActual; |
| hr = IMemAllocator_SetProperties(pPreferred, pProps, &PropsActual); |
| /* FIXME: check we are still aligned */ |
| if (SUCCEEDED(hr)) |
| { |
| IMemAllocator_AddRef(pPreferred); |
| *ppActual = pPreferred; |
| TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr); |
| return S_OK; |
| } |
| } |
| |
| pPreferred = NULL; |
| |
| hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC, &IID_IMemAllocator, (LPVOID *)&pPreferred); |
| |
| if (SUCCEEDED(hr)) |
| { |
| ALLOCATOR_PROPERTIES PropsActual; |
| hr = IMemAllocator_SetProperties(pPreferred, pProps, &PropsActual); |
| /* FIXME: check we are still aligned */ |
| if (SUCCEEDED(hr)) |
| { |
| *ppActual = pPreferred; |
| TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr); |
| return S_OK; |
| } |
| } |
| |
| 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) |
| { |
| REFERENCE_TIME Start; |
| REFERENCE_TIME Stop; |
| DATAREQUEST * pDataRq; |
| BYTE * pBuffer; |
| HRESULT hr = S_OK; |
| FileAsyncReader *This = impl_from_IAsyncReader(iface); |
| |
| TRACE("(%p, %lx)\n", pSample, dwUser); |
| |
| /* check flushing state */ |
| if (This->bFlushing) |
| return VFW_E_WRONG_STATE; |
| |
| if (!(pDataRq = CoTaskMemAlloc(sizeof(*pDataRq)))) |
| hr = E_OUTOFMEMORY; |
| |
| /* get start and stop positions in bytes */ |
| if (SUCCEEDED(hr)) |
| hr = IMediaSample_GetTime(pSample, &Start, &Stop); |
| |
| if (SUCCEEDED(hr)) |
| hr = IMediaSample_GetPointer(pSample, &pBuffer); |
| |
| if (SUCCEEDED(hr)) |
| { |
| DWORD dwLength = (DWORD) BYTES_FROM_MEDIATIME(Stop - Start); |
| |
| pDataRq->ovl.u.s.Offset = (DWORD) BYTES_FROM_MEDIATIME(Start); |
| pDataRq->ovl.u.s.OffsetHigh = (DWORD)(BYTES_FROM_MEDIATIME(Start) >> (sizeof(DWORD) * 8)); |
| pDataRq->ovl.hEvent = This->hEvent; |
| pDataRq->dwUserData = dwUser; |
| pDataRq->pNext = NULL; |
| /* 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; |
| |
| EnterCriticalSection(&This->csList); |
| { |
| if (This->pHead) |
| /* adds data request to end of list */ |
| queue(This->pHead, pDataRq); |
| else |
| This->pHead = pDataRq; |
| } |
| LeaveCriticalSection(&This->csList); |
| |
| /* 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; |
| } |
| |
| if (FAILED(hr) && pDataRq) |
| { |
| EnterCriticalSection(&This->csList); |
| { |
| DATAREQUEST * pCurrent; |
| for (pCurrent = This->pHead; pCurrent && pCurrent->pNext; pCurrent = pCurrent->pNext) |
| if (pCurrent->pNext == pDataRq) |
| { |
| pCurrent->pNext = pDataRq->pNext; |
| break; |
| } |
| } |
| LeaveCriticalSection(&This->csList); |
| CoTaskMemFree(pDataRq); |
| } |
| |
| TRACE("-- %x\n", hr); |
| return hr; |
| } |
| |
| static HRESULT WINAPI FileAsyncReader_WaitForNext(IAsyncReader * iface, DWORD dwTimeout, IMediaSample ** ppSample, DWORD_PTR * pdwUser) |
| { |
| HRESULT hr = S_OK; |
| DWORD dwBytes = 0; |
| DATAREQUEST * pDataRq = NULL; |
| FileAsyncReader *This = impl_from_IAsyncReader(iface); |
| |
| TRACE("(%u, %p, %p)\n", dwTimeout, ppSample, pdwUser); |
| |
| /* FIXME: we could do with improving this by waiting for an array of event handles |
| * and then determining which one finished and removing that from the list, otherwise |
| * we will end up waiting for longer than we should do, if a later request finishes |
| * before an earlier one */ |
| |
| *ppSample = NULL; |
| *pdwUser = 0; |
| |
| /* we return immediately if flushing */ |
| if (This->bFlushing) |
| hr = VFW_E_WRONG_STATE; |
| |
| if (SUCCEEDED(hr)) |
| { |
| /* wait for the read to finish or timeout */ |
| if (WaitForSingleObject(This->hEvent, dwTimeout) == WAIT_TIMEOUT) |
| hr = VFW_E_TIMEOUT; |
| } |
| if (SUCCEEDED(hr)) |
| { |
| EnterCriticalSection(&This->csList); |
| { |
| pDataRq = This->pHead; |
| if (pDataRq == NULL) |
| hr = E_FAIL; |
| else |
| This->pHead = pDataRq->pNext; |
| } |
| LeaveCriticalSection(&This->csList); |
| } |
| |
| if (SUCCEEDED(hr)) |
| { |
| /* get any errors */ |
| if (!GetOverlappedResult(This->hFile, &pDataRq->ovl, &dwBytes, FALSE)) |
| hr = HRESULT_FROM_WIN32(GetLastError()); |
| } |
| |
| if (SUCCEEDED(hr)) |
| { |
| IMediaSample_SetActualDataLength(pDataRq->pSample, dwBytes); |
| *ppSample = pDataRq->pSample; |
| *pdwUser = pDataRq->dwUserData; |
| } |
| |
| /* no need to close event handle since we will close it when the pin is destroyed */ |
| CoTaskMemFree(pDataRq); |
| |
| 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"); |
| |
| This->bFlushing = TRUE; |
| CancelIo(This->hFile); |
| SetEvent(This->hEvent); |
| |
| /* FIXME: free list */ |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI FileAsyncReader_EndFlush(IAsyncReader * iface) |
| { |
| FileAsyncReader *This = impl_from_IAsyncReader(iface); |
| |
| TRACE("()\n"); |
| |
| This->bFlushing = FALSE; |
| |
| 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, |
| }; |
