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285
Src/Winamp/JSAPI2_MediaCore.cpp
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285
Src/Winamp/JSAPI2_MediaCore.cpp
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#include "JSAPI2_MediaCore.h"
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#include "main.h"
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#include "api.h"
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#include "JSAPI.h"
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#include "JSAPI2_Security.h"
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#include "JSAPI2_CallbackManager.h"
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JSAPI2::MediaCoreAPI::MediaCoreAPI(const wchar_t *_key, JSAPI::ifc_info *_info) : metadataGuard("MediaCoreAPI metadata Guard")
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{
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info = _info;
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key = _key;
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refCount = 1;
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}
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JSAPI2::MediaCoreAPI::~MediaCoreAPI()
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{
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JSAPI2::callbackManager.Deregister(this);
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}
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#define DISP_TABLE \
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CHECK_ID(IsRegisteredExtension)\
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CHECK_ID(GetMetadata)\
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CHECK_ID(AddMetadataHook)\
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CHECK_ID(RemoveMetadataHook)\
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#define CHECK_ID(str) JSAPI_DISP_ENUMIFY(str),
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enum {
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DISP_TABLE
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};
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#undef CHECK_ID
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#define CHECK_ID(str)\
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if (CSTR_EQUAL == CompareStringW(lcid, NORM_IGNORECASE, rgszNames[i], -1, L## #str, -1))\
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{ rgdispid[i] = JSAPI_DISP_ENUMIFY(str); continue; }
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HRESULT JSAPI2::MediaCoreAPI::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
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{
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bool unknowns = false;
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for (unsigned int i = 0;i != cNames;i++)
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{
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DISP_TABLE
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rgdispid[i] = DISPID_UNKNOWN;
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unknowns = true;
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}
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if (unknowns)
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return DISP_E_UNKNOWNNAME;
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else
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return S_OK;
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}
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HRESULT JSAPI2::MediaCoreAPI::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
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{
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return E_NOTIMPL;
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}
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HRESULT JSAPI2::MediaCoreAPI::GetTypeInfoCount(unsigned int FAR * pctinfo)
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{
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return E_NOTIMPL;
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}
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HRESULT JSAPI2::MediaCoreAPI::IsRegisteredExtension(WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, unsigned int FAR *puArgErr)
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{
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JSAPI_VERIFY_METHOD(wFlags);
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JSAPI_VERIFY_PARAMCOUNT(pdispparams, 1);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
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JSAPI_INIT_RESULT(pvarResult, VT_BOOL);
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const wchar_t *extension = JSAPI_PARAM(pdispparams, 1).bstrVal;
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int start_offs=0;
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wchar_t filename[MAX_PATH] = {0};
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StringCbPrintfW(filename, sizeof(filename), L"test.%s", extension);
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In_Module *i = in_setmod_noplay(filename, &start_offs);
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if (i)
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V_BOOL(pvarResult) = VARIANT_TRUE;
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else
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V_BOOL(pvarResult) = VARIANT_FALSE;
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return S_OK;
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}
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HRESULT JSAPI2::MediaCoreAPI::GetMetadata(WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, unsigned int FAR *puArgErr)
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{
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JSAPI_VERIFY_METHOD(wFlags);
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JSAPI_VERIFY_PARAMCOUNT(pdispparams, 2);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 2, VT_BSTR, puArgErr);
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JSAPI_INIT_RESULT(pvarResult, VT_BSTR);
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if (security.GetActionAuthorization(L"mediacore", L"metadata", key, info, JSAPI2::api_security::ACTION_PROMPT) == JSAPI2::api_security::ACTION_ALLOWED)
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{
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wchar_t buffer[4096] = {0};
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extendedFileInfoStructW info;
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info.filename = JSAPI_PARAM(pdispparams, 1).bstrVal;
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info.metadata = JSAPI_PARAM(pdispparams, 2).bstrVal;
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info.ret = buffer;
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info.retlen = sizeof(buffer)/sizeof(*buffer);
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if (NULL != info.filename &&
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NULL != info.metadata)
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{
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if (0 == SendMessageW(hMainWindow, WM_WA_IPC, (WPARAM)&info, IPC_GET_EXTENDED_FILE_INFOW_HOOKABLE))
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info.ret = NULL;
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JSAPI_SET_RESULT(pvarResult, bstrVal, SysAllocString(info.ret));
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}
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else
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JSAPI_EMPTY_RESULT(pvarResult);
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}
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else
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{
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JSAPI_EMPTY_RESULT(pvarResult);
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}
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return S_OK;
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}
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void JSAPI2::MediaCoreAPI::RemoveMetadataHook(const wchar_t *filename)
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{
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Nullsoft::Utility::AutoLock metadataLock(metadataGuard);
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RemoveMetadataHook_again:
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MetadataMap::iterator itr;
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for (itr=metadataMap.begin();itr!=metadataMap.end();itr++)
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{
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if (!_wcsicmp(filename, itr->url.c_str()))
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{
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metadataMap.erase(itr);
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goto RemoveMetadataHook_again;
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}
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}
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}
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void JSAPI2::MediaCoreAPI::RemoveMetadataHook(const wchar_t *filename, const wchar_t *tag)
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{
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Nullsoft::Utility::AutoLock metadataLock(metadataGuard);
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RemoveMetadataHook_again2:
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MetadataMap::iterator itr;
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for (itr=metadataMap.begin();itr!=metadataMap.end();itr++)
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{
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if (!_wcsicmp(filename, itr->url.c_str())
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&& !_wcsicmp(tag, itr->tag.c_str()))
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{
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metadataMap.erase(itr);
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goto RemoveMetadataHook_again2;
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}
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}
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}
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HRESULT JSAPI2::MediaCoreAPI::AddMetadataHook(WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, unsigned int FAR *puArgErr)
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{
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JSAPI_VERIFY_METHOD(wFlags);
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JSAPI_VERIFY_PARAMCOUNT(pdispparams, 3);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 2, VT_BSTR, puArgErr);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 3, VT_BSTR, puArgErr);
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JSAPI_INIT_RESULT(pvarResult, VT_BOOL);
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if (security.GetActionAuthorization(L"mediacore", L"metadatahook", key, info, JSAPI2::api_security::ACTION_PROMPT) == JSAPI2::api_security::ACTION_ALLOWED)
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{
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const wchar_t *filename = JSAPI_PARAM(pdispparams, 1).bstrVal;
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const wchar_t *tag = JSAPI_PARAM(pdispparams, 2).bstrVal;
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const wchar_t *value = JSAPI_PARAM(pdispparams, 3).bstrVal;
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if (NULL == filename || L'\0' == *filename ||
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NULL == tag || L'\0' == *tag)
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{
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JSAPI_SET_RESULT(pvarResult, boolVal, VARIANT_FALSE);
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return S_OK;
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}
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JSAPI2::callbackManager.Register(this);
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metadata_info info;
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info.url = filename;
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info.tag = tag;
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info.metadata= value;
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Nullsoft::Utility::AutoLock metadataLock(metadataGuard);
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RemoveMetadataHook(filename, tag);
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metadataMap.push_back(info);
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JSAPI_SET_RESULT(pvarResult, boolVal, VARIANT_TRUE);
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}
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else
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{
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JSAPI_SET_RESULT(pvarResult, boolVal, VARIANT_FALSE);
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}
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return S_OK;
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}
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HRESULT JSAPI2::MediaCoreAPI::RemoveMetadataHook(WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, unsigned int FAR *puArgErr)
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{
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JSAPI_VERIFY_METHOD(wFlags);
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JSAPI_VERIFY_PARAMCOUNT_OPTIONAL(pdispparams, 1, 2);
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JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
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JSAPI_VERIFY_PARAMTYPE_OPTIONAL(pdispparams, 2, VT_BSTR, puArgErr);
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JSAPI_INIT_RESULT(pvarResult, VT_BOOL);
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const wchar_t *filename = JSAPI_PARAM(pdispparams, 1).bstrVal;
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const wchar_t *tag = JSAPI_PARAM_OPTIONAL(pdispparams, 2, bstrVal, 0);
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if (NULL == filename || L'\0' == *filename)
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{
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JSAPI_SET_RESULT(pvarResult, boolVal, VARIANT_FALSE);
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return S_OK;
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}
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if (NULL != tag && L'\0' == *tag)
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tag = NULL;
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if (NULL != tag)
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RemoveMetadataHook(filename, tag);
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else
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RemoveMetadataHook(filename);
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JSAPI_SET_RESULT(pvarResult, boolVal, VARIANT_TRUE);
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return S_OK;
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}
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bool JSAPI2::MediaCoreAPI::OverrideMetadata(const wchar_t *filename, const wchar_t *tag, wchar_t *out, size_t outCch)
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{
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Nullsoft::Utility::AutoLock metadataLock(metadataGuard);
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MetadataMap::iterator itr;
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for (itr=metadataMap.begin();itr!=metadataMap.end();itr++)
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{
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if (!_wcsicmp(filename, itr->url.c_str()) && !_wcsicmp(tag, itr->tag.c_str()))
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{
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StringCchCopyW(out, outCch, itr->metadata.c_str());
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return true;
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}
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}
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return false;
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}
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#undef CHECK_ID
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#define CHECK_ID(str) case JSAPI_DISP_ENUMIFY(str): return str(wFlags, pdispparams, pvarResult, puArgErr);
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HRESULT JSAPI2::MediaCoreAPI::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
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{
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switch (dispid)
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{
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DISP_TABLE
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}
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return DISP_E_MEMBERNOTFOUND;
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}
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STDMETHODIMP JSAPI2::MediaCoreAPI::QueryInterface(REFIID riid, PVOID *ppvObject)
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{
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if (!ppvObject)
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return E_POINTER;
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else if (IsEqualIID(riid, IID_IDispatch))
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*ppvObject = (IDispatch *)this;
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else if (IsEqualIID(riid, IID_IUnknown))
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*ppvObject = this;
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else
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{
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*ppvObject = NULL;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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ULONG JSAPI2::MediaCoreAPI::AddRef(void)
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{
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return InterlockedIncrement(&refCount);
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}
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ULONG JSAPI2::MediaCoreAPI::Release(void)
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{
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LONG lRef = InterlockedDecrement(&refCount);
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if (lRef == 0) delete this;
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return lRef;
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}
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