void CInArchive::GetNextFolderItem(CFolder &folder) { CNum numCoders = ReadNum(); folder.Coders.Clear(); folder.Coders.Reserve((int)numCoders); CNum numInStreams = 0; CNum numOutStreams = 0; CNum i; for (i = 0; i < numCoders; i++) { folder.Coders.Add(CCoderInfo()); CCoderInfo &coder = folder.Coders.Back(); { Byte mainByte = ReadByte(); int idSize = (mainByte & 0xF); Byte longID[15]; ReadBytes(longID, idSize); if (idSize > 8) ThrowUnsupported(); UInt64 id = 0; for (int j = 0; j < idSize; j++) id |= (UInt64)longID[idSize - 1 - j] << (8 * j); coder.MethodID = id; if ((mainByte & 0x10) != 0) { coder.NumInStreams = ReadNum(); coder.NumOutStreams = ReadNum(); } else { coder.NumInStreams = 1; coder.NumOutStreams = 1; } if ((mainByte & 0x20) != 0) { CNum propsSize = ReadNum(); coder.Props.SetCapacity((size_t)propsSize); ReadBytes((Byte *)coder.Props, (size_t)propsSize); } if ((mainByte & 0x80) != 0) ThrowUnsupported(); } numInStreams += coder.NumInStreams; numOutStreams += coder.NumOutStreams; } CNum numBindPairs = numOutStreams - 1; folder.BindPairs.Clear(); folder.BindPairs.Reserve(numBindPairs); for (i = 0; i < numBindPairs; i++) { CBindPair bp; bp.InIndex = ReadNum(); bp.OutIndex = ReadNum(); folder.BindPairs.Add(bp); } if (numInStreams < numBindPairs) ThrowUnsupported(); CNum numPackStreams = numInStreams - numBindPairs; folder.PackStreams.Reserve(numPackStreams); if (numPackStreams == 1) { for (i = 0; i < numInStreams; i++) if (folder.FindBindPairForInStream(i) < 0) { folder.PackStreams.Add(i); break; } if (folder.PackStreams.Size() != 1) ThrowUnsupported(); } else for (i = 0; i < numPackStreams; i++) folder.PackStreams.Add(ReadNum()); }
HRESULT CDecoder::Decode( DECL_EXTERNAL_CODECS_LOC_VARS IInStream *inStream, UInt64 startPos, const UInt64 *packSizes, const CFolder &folderInfo, ISequentialOutStream *outStream, ICompressProgressInfo *compressProgress #ifndef _NO_CRYPTO , ICryptoGetTextPassword *getTextPassword, bool &passwordIsDefined #endif #ifdef COMPRESS_MT , bool mtMode, UInt32 numThreads #endif ) { if (!folderInfo.CheckStructure()) return E_NOTIMPL; #ifndef _NO_CRYPTO passwordIsDefined = false; #endif CObjectVector< CMyComPtr<ISequentialInStream> > inStreams; CLockedInStream lockedInStream; lockedInStream.Init(inStream); for (int j = 0; j < folderInfo.PackStreams.Size(); j++) { CLockedSequentialInStreamImp *lockedStreamImpSpec = new CLockedSequentialInStreamImp; CMyComPtr<ISequentialInStream> lockedStreamImp = lockedStreamImpSpec; lockedStreamImpSpec->Init(&lockedInStream, startPos); startPos += packSizes[j]; CLimitedSequentialInStream *streamSpec = new CLimitedSequentialInStream; CMyComPtr<ISequentialInStream> inStream = streamSpec; streamSpec->SetStream(lockedStreamImp); streamSpec->Init(packSizes[j]); inStreams.Add(inStream); } int numCoders = folderInfo.Coders.Size(); CBindInfoEx bindInfo; ConvertFolderItemInfoToBindInfo(folderInfo, bindInfo); bool createNewCoders; if (!_bindInfoExPrevIsDefined) createNewCoders = true; else createNewCoders = !AreBindInfoExEqual(bindInfo, _bindInfoExPrev); if (createNewCoders) { int i; _decoders.Clear(); // _decoders2.Clear(); _mixerCoder.Release(); if (_multiThread) { _mixerCoderMTSpec = new NCoderMixer::CCoderMixer2MT; _mixerCoder = _mixerCoderMTSpec; _mixerCoderCommon = _mixerCoderMTSpec; } else { #ifdef _ST_MODE _mixerCoderSTSpec = new NCoderMixer::CCoderMixer2ST; _mixerCoder = _mixerCoderSTSpec; _mixerCoderCommon = _mixerCoderSTSpec; #endif } RINOK(_mixerCoderCommon->SetBindInfo(bindInfo)); for (i = 0; i < numCoders; i++) { const CCoderInfo &coderInfo = folderInfo.Coders[i]; CMyComPtr<ICompressCoder> decoder; CMyComPtr<ICompressCoder2> decoder2; RINOK(CreateCoder( EXTERNAL_CODECS_LOC_VARS coderInfo.MethodID, decoder, decoder2, false)); CMyComPtr<IUnknown> decoderUnknown; if (coderInfo.IsSimpleCoder()) { if (decoder == 0) return E_NOTIMPL; decoderUnknown = (IUnknown *)decoder; if (_multiThread) _mixerCoderMTSpec->AddCoder(decoder); #ifdef _ST_MODE else _mixerCoderSTSpec->AddCoder(decoder, false); #endif } else { if (decoder2 == 0) return E_NOTIMPL; decoderUnknown = (IUnknown *)decoder2; if (_multiThread) _mixerCoderMTSpec->AddCoder2(decoder2); #ifdef _ST_MODE else _mixerCoderSTSpec->AddCoder2(decoder2, false); #endif } _decoders.Add(decoderUnknown); #ifdef EXTERNAL_CODECS CMyComPtr<ISetCompressCodecsInfo> setCompressCodecsInfo; decoderUnknown.QueryInterface(IID_ISetCompressCodecsInfo, (void **)&setCompressCodecsInfo); if (setCompressCodecsInfo) { RINOK(setCompressCodecsInfo->SetCompressCodecsInfo(codecsInfo)); } #endif } _bindInfoExPrev = bindInfo; _bindInfoExPrevIsDefined = true; } int i; _mixerCoderCommon->ReInit(); UInt32 packStreamIndex = 0, unpackStreamIndex = 0; UInt32 coderIndex = 0; // UInt32 coder2Index = 0; for (i = 0; i < numCoders; i++) { const CCoderInfo &coderInfo = folderInfo.Coders[i]; CMyComPtr<IUnknown> &decoder = _decoders[coderIndex]; { CMyComPtr<ICompressSetDecoderProperties2> setDecoderProperties; decoder.QueryInterface(IID_ICompressSetDecoderProperties2, &setDecoderProperties); if (setDecoderProperties) { const CByteBuffer &props = coderInfo.Props; size_t size = props.GetCapacity(); if (size > 0xFFFFFFFF) return E_NOTIMPL; if (size > 0) { RINOK(setDecoderProperties->SetDecoderProperties2((const Byte *)props, (UInt32)size)); } } } #ifdef COMPRESS_MT if (mtMode) { CMyComPtr<ICompressSetCoderMt> setCoderMt; decoder.QueryInterface(IID_ICompressSetCoderMt, &setCoderMt); if (setCoderMt) { RINOK(setCoderMt->SetNumberOfThreads(numThreads)); } } #endif #ifndef _NO_CRYPTO { CMyComPtr<ICryptoSetPassword> cryptoSetPassword; decoder.QueryInterface(IID_ICryptoSetPassword, &cryptoSetPassword); if (cryptoSetPassword) { if (getTextPassword == 0) return E_FAIL; CMyComBSTR passwordBSTR; RINOK(getTextPassword->CryptoGetTextPassword(&passwordBSTR)); CByteBuffer buffer; passwordIsDefined = true; const UString password(passwordBSTR); const UInt32 sizeInBytes = password.Length() * 2; buffer.SetCapacity(sizeInBytes); for (int i = 0; i < password.Length(); i++) { wchar_t c = password[i]; ((Byte *)buffer)[i * 2] = (Byte)c; ((Byte *)buffer)[i * 2 + 1] = (Byte)(c >> 8); } RINOK(cryptoSetPassword->CryptoSetPassword((const Byte *)buffer, sizeInBytes)); } } #endif coderIndex++; UInt32 numInStreams = (UInt32)coderInfo.NumInStreams; UInt32 numOutStreams = (UInt32)coderInfo.NumOutStreams; CRecordVector<const UInt64 *> packSizesPointers; CRecordVector<const UInt64 *> unpackSizesPointers; packSizesPointers.Reserve(numInStreams); unpackSizesPointers.Reserve(numOutStreams); UInt32 j; for (j = 0; j < numOutStreams; j++, unpackStreamIndex++) unpackSizesPointers.Add(&folderInfo.UnpackSizes[unpackStreamIndex]); for (j = 0; j < numInStreams; j++, packStreamIndex++) { int bindPairIndex = folderInfo.FindBindPairForInStream(packStreamIndex); if (bindPairIndex >= 0) packSizesPointers.Add( &folderInfo.UnpackSizes[(UInt32)folderInfo.BindPairs[bindPairIndex].OutIndex]); else { int index = folderInfo.FindPackStreamArrayIndex(packStreamIndex); if (index < 0) return E_FAIL; packSizesPointers.Add(&packSizes[index]); } } _mixerCoderCommon->SetCoderInfo(i, &packSizesPointers.Front(), &unpackSizesPointers.Front()); } UInt32 mainCoder, temp; bindInfo.FindOutStream(bindInfo.OutStreams[0], mainCoder, temp); if (_multiThread) _mixerCoderMTSpec->SetProgressCoderIndex(mainCoder); /* else _mixerCoderSTSpec->SetProgressCoderIndex(mainCoder);; */ if (numCoders == 0) return 0; CRecordVector<ISequentialInStream *> inStreamPointers; inStreamPointers.Reserve(inStreams.Size()); for (i = 0; i < inStreams.Size(); i++) inStreamPointers.Add(inStreams[i]); ISequentialOutStream *outStreamPointer = outStream; return _mixerCoder->Code(&inStreamPointers.Front(), NULL, inStreams.Size(), &outStreamPointer, NULL, 1, compressProgress); }