PhysicsFS 2.0.3 imported.
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lib/physfs-2.0.3/lzma/CPP/7zip/Common/CreateCoder.cpp
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292
lib/physfs-2.0.3/lzma/CPP/7zip/Common/CreateCoder.cpp
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// CreateCoder.cpp
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#include "StdAfx.h"
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#include "CreateCoder.h"
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#include "../../Windows/PropVariant.h"
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#include "../../Windows/Defs.h"
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#include "FilterCoder.h"
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#include "RegisterCodec.h"
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static const unsigned int kNumCodecsMax = 64;
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unsigned int g_NumCodecs = 0;
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const CCodecInfo *g_Codecs[kNumCodecsMax];
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void RegisterCodec(const CCodecInfo *codecInfo)
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{
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if (g_NumCodecs < kNumCodecsMax)
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g_Codecs[g_NumCodecs++] = codecInfo;
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}
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#ifdef EXTERNAL_CODECS
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static HRESULT ReadNumberOfStreams(ICompressCodecsInfo *codecsInfo, UInt32 index, PROPID propID, UInt32 &res)
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{
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NWindows::NCOM::CPropVariant prop;
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RINOK(codecsInfo->GetProperty(index, propID, &prop));
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if (prop.vt == VT_EMPTY)
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res = 1;
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else if (prop.vt == VT_UI4)
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res = prop.ulVal;
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else
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return E_INVALIDARG;
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return S_OK;
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}
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static HRESULT ReadIsAssignedProp(ICompressCodecsInfo *codecsInfo, UInt32 index, PROPID propID, bool &res)
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{
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NWindows::NCOM::CPropVariant prop;
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RINOK(codecsInfo->GetProperty(index, propID, &prop));
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if (prop.vt == VT_EMPTY)
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res = true;
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else if (prop.vt == VT_BOOL)
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res = VARIANT_BOOLToBool(prop.boolVal);
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else
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return E_INVALIDARG;
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return S_OK;
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}
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HRESULT LoadExternalCodecs(ICompressCodecsInfo *codecsInfo, CObjectVector<CCodecInfoEx> &externalCodecs)
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{
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UInt32 num;
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RINOK(codecsInfo->GetNumberOfMethods(&num));
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for (UInt32 i = 0; i < num; i++)
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{
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CCodecInfoEx info;
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NWindows::NCOM::CPropVariant prop;
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RINOK(codecsInfo->GetProperty(i, NMethodPropID::kID, &prop));
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// if (prop.vt != VT_BSTR)
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// info.Id.IDSize = (Byte)SysStringByteLen(prop.bstrVal);
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// memmove(info.Id.ID, prop.bstrVal, info.Id.IDSize);
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if (prop.vt != VT_UI8)
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{
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continue; // old Interface
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// return E_INVALIDARG;
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}
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info.Id = prop.uhVal.QuadPart;
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prop.Clear();
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RINOK(codecsInfo->GetProperty(i, NMethodPropID::kName, &prop));
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if (prop.vt == VT_BSTR)
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info.Name = prop.bstrVal;
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else if (prop.vt != VT_EMPTY)
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return E_INVALIDARG;;
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RINOK(ReadNumberOfStreams(codecsInfo, i, NMethodPropID::kInStreams, info.NumInStreams));
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RINOK(ReadNumberOfStreams(codecsInfo, i, NMethodPropID::kOutStreams, info.NumOutStreams));
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RINOK(ReadIsAssignedProp(codecsInfo, i, NMethodPropID::kEncoderIsAssigned, info.EncoderIsAssigned));
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RINOK(ReadIsAssignedProp(codecsInfo, i, NMethodPropID::kDecoderIsAssigned, info.DecoderIsAssigned));
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externalCodecs.Add(info);
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}
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return S_OK;
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}
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#endif
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bool FindMethod(
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#ifdef EXTERNAL_CODECS
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ICompressCodecsInfo * /* codecsInfo */, const CObjectVector<CCodecInfoEx> *externalCodecs,
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#endif
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const UString &name,
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CMethodId &methodId, UInt32 &numInStreams, UInt32 &numOutStreams)
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{
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UInt32 i;
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for (i = 0; i < g_NumCodecs; i++)
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{
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const CCodecInfo &codec = *g_Codecs[i];
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if (name.CompareNoCase(codec.Name) == 0)
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{
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methodId = codec.Id;
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numInStreams = codec.NumInStreams;
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numOutStreams = 1;
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return true;
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}
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}
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#ifdef EXTERNAL_CODECS
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if (externalCodecs)
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for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
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{
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const CCodecInfoEx &codec = (*externalCodecs)[i];
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if (codec.Name.CompareNoCase(name) == 0)
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{
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methodId = codec.Id;
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numInStreams = codec.NumInStreams;
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numOutStreams = codec.NumOutStreams;
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return true;
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}
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}
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#endif
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return false;
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}
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bool FindMethod(
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#ifdef EXTERNAL_CODECS
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ICompressCodecsInfo * /* codecsInfo */, const CObjectVector<CCodecInfoEx> *externalCodecs,
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#endif
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CMethodId methodId, UString &name)
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{
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UInt32 i;
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for (i = 0; i < g_NumCodecs; i++)
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{
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const CCodecInfo &codec = *g_Codecs[i];
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if (methodId == codec.Id)
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{
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name = codec.Name;
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return true;
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}
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}
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#ifdef EXTERNAL_CODECS
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if (externalCodecs)
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for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
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{
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const CCodecInfoEx &codec = (*externalCodecs)[i];
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if (methodId == codec.Id)
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{
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name = codec.Name;
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return true;
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}
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}
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#endif
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return false;
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}
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HRESULT CreateCoder(
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DECL_EXTERNAL_CODECS_LOC_VARS
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CMethodId methodId,
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CMyComPtr<ICompressFilter> &filter,
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CMyComPtr<ICompressCoder> &coder,
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CMyComPtr<ICompressCoder2> &coder2,
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bool encode, bool onlyCoder)
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{
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bool created = false;
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UInt32 i;
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for (i = 0; i < g_NumCodecs; i++)
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{
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const CCodecInfo &codec = *g_Codecs[i];
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if (codec.Id == methodId)
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{
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if (encode)
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{
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if (codec.CreateEncoder)
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{
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void *p = codec.CreateEncoder();
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if (codec.IsFilter) filter = (ICompressFilter *)p;
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else if (codec.NumInStreams == 1) coder = (ICompressCoder *)p;
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else coder2 = (ICompressCoder2 *)p;
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created = (p != 0);
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break;
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}
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}
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else
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if (codec.CreateDecoder)
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{
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void *p = codec.CreateDecoder();
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if (codec.IsFilter) filter = (ICompressFilter *)p;
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else if (codec.NumInStreams == 1) coder = (ICompressCoder *)p;
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else coder2 = (ICompressCoder2 *)p;
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created = (p != 0);
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break;
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}
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}
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}
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#ifdef EXTERNAL_CODECS
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if (!created && externalCodecs)
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for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
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{
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const CCodecInfoEx &codec = (*externalCodecs)[i];
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if (codec.Id == methodId)
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{
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if (encode)
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{
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if (codec.EncoderIsAssigned)
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{
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if (codec.IsSimpleCodec())
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{
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HRESULT result = codecsInfo->CreateEncoder(i, &IID_ICompressCoder, (void **)&coder);
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if (result != S_OK && result != E_NOINTERFACE && result != CLASS_E_CLASSNOTAVAILABLE)
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return result;
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if (!coder)
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{
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RINOK(codecsInfo->CreateEncoder(i, &IID_ICompressFilter, (void **)&filter));
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}
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}
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else
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{
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RINOK(codecsInfo->CreateEncoder(i, &IID_ICompressCoder2, (void **)&coder2));
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}
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break;
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}
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}
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else
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if (codec.DecoderIsAssigned)
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{
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if (codec.IsSimpleCodec())
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{
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HRESULT result = codecsInfo->CreateDecoder(i, &IID_ICompressCoder, (void **)&coder);
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if (result != S_OK && result != E_NOINTERFACE && result != CLASS_E_CLASSNOTAVAILABLE)
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return result;
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if (!coder)
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{
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RINOK(codecsInfo->CreateDecoder(i, &IID_ICompressFilter, (void **)&filter));
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}
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}
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else
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{
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RINOK(codecsInfo->CreateDecoder(i, &IID_ICompressCoder2, (void **)&coder2));
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}
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break;
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}
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}
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}
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#endif
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if (onlyCoder && filter)
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{
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CFilterCoder *coderSpec = new CFilterCoder;
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coder = coderSpec;
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coderSpec->Filter = filter;
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}
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return S_OK;
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}
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HRESULT CreateCoder(
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DECL_EXTERNAL_CODECS_LOC_VARS
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CMethodId methodId,
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CMyComPtr<ICompressCoder> &coder,
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CMyComPtr<ICompressCoder2> &coder2,
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bool encode)
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{
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CMyComPtr<ICompressFilter> filter;
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return CreateCoder(
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EXTERNAL_CODECS_LOC_VARS
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methodId,
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filter, coder, coder2, encode, true);
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}
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HRESULT CreateCoder(
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DECL_EXTERNAL_CODECS_LOC_VARS
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CMethodId methodId,
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CMyComPtr<ICompressCoder> &coder, bool encode)
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{
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CMyComPtr<ICompressFilter> filter;
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CMyComPtr<ICompressCoder2> coder2;
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return CreateCoder(
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EXTERNAL_CODECS_LOC_VARS
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methodId,
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coder, coder2, encode);
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}
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HRESULT CreateFilter(
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DECL_EXTERNAL_CODECS_LOC_VARS
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CMethodId methodId,
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CMyComPtr<ICompressFilter> &filter,
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bool encode)
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{
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CMyComPtr<ICompressCoder> coder;
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CMyComPtr<ICompressCoder2> coder2;
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return CreateCoder(
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EXTERNAL_CODECS_LOC_VARS
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methodId,
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filter, coder, coder2, encode, false);
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}
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