1 // CreateCoder.h 2 3 #ifndef __CREATE_CODER_H 4 #define __CREATE_CODER_H 5 6 #include "../../Common/MyCom.h" 7 #include "../../Common/MyString.h" 8 9 #include "../ICoder.h" 10 11 #include "MethodId.h" 12 13 /* 14 if EXTERNAL_CODECS is not defined, the code supports only codecs that 15 are statically linked at compile-time and link-time. 16 17 if EXTERNAL_CODECS is defined, the code supports also codecs from another 18 executable modules, that can be linked dynamically at run-time: 19 - EXE module can use codecs from external DLL files. 20 - DLL module can use codecs from external EXE and DLL files. 21 22 CExternalCodecs contains information about codecs and interfaces to create them. 23 24 The order of codecs: 25 1) Internal codecs 26 2) External codecs 27 */ 28 29 #ifdef EXTERNAL_CODECS 30 31 struct CCodecInfoEx 32 { 33 CMethodId Id; 34 AString Name; 35 UInt32 NumStreams; 36 bool EncoderIsAssigned; 37 bool DecoderIsAssigned; 38 CCodecInfoExCCodecInfoEx39 CCodecInfoEx(): EncoderIsAssigned(false), DecoderIsAssigned(false) {} 40 }; 41 42 struct CHasherInfoEx 43 { 44 CMethodId Id; 45 AString Name; 46 }; 47 48 #define PUBLIC_ISetCompressCodecsInfo public ISetCompressCodecsInfo, 49 #define QUERY_ENTRY_ISetCompressCodecsInfo MY_QUERYINTERFACE_ENTRY(ISetCompressCodecsInfo) 50 #define DECL_ISetCompressCodecsInfo STDMETHOD(SetCompressCodecsInfo)(ICompressCodecsInfo *compressCodecsInfo); 51 #define IMPL_ISetCompressCodecsInfo2(x) \ 52 STDMETHODIMP x::SetCompressCodecsInfo(ICompressCodecsInfo *compressCodecsInfo) { \ 53 COM_TRY_BEGIN __externalCodecs.GetCodecs = compressCodecsInfo; return __externalCodecs.Load(); COM_TRY_END } 54 #define IMPL_ISetCompressCodecsInfo IMPL_ISetCompressCodecsInfo2(CHandler) 55 56 struct CExternalCodecs 57 { 58 CMyComPtr<ICompressCodecsInfo> GetCodecs; 59 CMyComPtr<IHashers> GetHashers; 60 61 CObjectVector<CCodecInfoEx> Codecs; 62 CObjectVector<CHasherInfoEx> Hashers; 63 IsSetCExternalCodecs64 bool IsSet() const { return GetCodecs != NULL || GetHashers != NULL; } 65 66 HRESULT Load(); 67 ClearAndReleaseCExternalCodecs68 void ClearAndRelease() 69 { 70 Hashers.Clear(); 71 Codecs.Clear(); 72 GetHashers.Release(); 73 GetCodecs.Release(); 74 } 75 ~CExternalCodecsCExternalCodecs76 ~CExternalCodecs() 77 { 78 GetHashers.Release(); 79 GetCodecs.Release(); 80 } 81 }; 82 83 extern CExternalCodecs g_ExternalCodecs; 84 85 #define EXTERNAL_CODECS_VARS2 (__externalCodecs.IsSet() ? &__externalCodecs : &g_ExternalCodecs) 86 #define EXTERNAL_CODECS_VARS2_L (&__externalCodecs) 87 #define EXTERNAL_CODECS_VARS2_G (&g_ExternalCodecs) 88 89 #define DECL_EXTERNAL_CODECS_VARS CExternalCodecs __externalCodecs; 90 91 #define EXTERNAL_CODECS_VARS EXTERNAL_CODECS_VARS2, 92 #define EXTERNAL_CODECS_VARS_L EXTERNAL_CODECS_VARS2_L, 93 #define EXTERNAL_CODECS_VARS_G EXTERNAL_CODECS_VARS2_G, 94 95 #define DECL_EXTERNAL_CODECS_LOC_VARS2 const CExternalCodecs *__externalCodecs 96 #define EXTERNAL_CODECS_LOC_VARS2 __externalCodecs 97 98 #define DECL_EXTERNAL_CODECS_LOC_VARS DECL_EXTERNAL_CODECS_LOC_VARS2, 99 #define EXTERNAL_CODECS_LOC_VARS EXTERNAL_CODECS_LOC_VARS2, 100 101 #else 102 103 #define PUBLIC_ISetCompressCodecsInfo 104 #define QUERY_ENTRY_ISetCompressCodecsInfo 105 #define DECL_ISetCompressCodecsInfo 106 #define IMPL_ISetCompressCodecsInfo 107 #define EXTERNAL_CODECS_VARS2 108 #define DECL_EXTERNAL_CODECS_VARS 109 #define EXTERNAL_CODECS_VARS 110 #define EXTERNAL_CODECS_VARS_L 111 #define EXTERNAL_CODECS_VARS_G 112 #define DECL_EXTERNAL_CODECS_LOC_VARS2 113 #define EXTERNAL_CODECS_LOC_VARS2 114 #define DECL_EXTERNAL_CODECS_LOC_VARS 115 #define EXTERNAL_CODECS_LOC_VARS 116 117 #endif 118 119 int FindMethod_Index( 120 DECL_EXTERNAL_CODECS_LOC_VARS 121 const AString &name, 122 bool encode, 123 CMethodId &methodId, 124 UInt32 &numStreams); 125 126 bool FindMethod( 127 DECL_EXTERNAL_CODECS_LOC_VARS 128 CMethodId methodId, 129 AString &name); 130 131 bool FindHashMethod( 132 DECL_EXTERNAL_CODECS_LOC_VARS 133 const AString &name, 134 CMethodId &methodId); 135 136 void GetHashMethods( 137 DECL_EXTERNAL_CODECS_LOC_VARS 138 CRecordVector<CMethodId> &methods); 139 140 141 struct CCreatedCoder 142 { 143 CMyComPtr<ICompressCoder> Coder; 144 CMyComPtr<ICompressCoder2> Coder2; 145 146 bool IsExternal; 147 bool IsFilter; // = true, if Coder was created from filter 148 UInt32 NumStreams; 149 150 // CCreatedCoder(): IsExternal(false), IsFilter(false), NumStreams(1) {} 151 }; 152 153 154 HRESULT CreateCoder_Index( 155 DECL_EXTERNAL_CODECS_LOC_VARS 156 unsigned codecIndex, bool encode, 157 CMyComPtr<ICompressFilter> &filter, 158 CCreatedCoder &cod); 159 160 HRESULT CreateCoder_Index( 161 DECL_EXTERNAL_CODECS_LOC_VARS 162 unsigned index, bool encode, 163 CCreatedCoder &cod); 164 165 HRESULT CreateCoder_Id( 166 DECL_EXTERNAL_CODECS_LOC_VARS 167 CMethodId methodId, bool encode, 168 CMyComPtr<ICompressFilter> &filter, 169 CCreatedCoder &cod); 170 171 HRESULT CreateCoder_Id( 172 DECL_EXTERNAL_CODECS_LOC_VARS 173 CMethodId methodId, bool encode, 174 CCreatedCoder &cod); 175 176 HRESULT CreateCoder_Id( 177 DECL_EXTERNAL_CODECS_LOC_VARS 178 CMethodId methodId, bool encode, 179 CMyComPtr<ICompressCoder> &coder); 180 181 HRESULT CreateFilter( 182 DECL_EXTERNAL_CODECS_LOC_VARS 183 CMethodId methodId, bool encode, 184 CMyComPtr<ICompressFilter> &filter); 185 186 HRESULT CreateHasher( 187 DECL_EXTERNAL_CODECS_LOC_VARS 188 CMethodId methodId, 189 AString &name, 190 CMyComPtr<IHasher> &hasher); 191 192 #endif 193