律师行业网站模板今日实时热搜
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MediaInfo源代码分析系列文章列表：
MediaInfo源代码分析 1：整体结构MediaInfo源代码分析 2：API函数
MediaInfo源代码分析 3：Open()函数
MediaInfo源代码分析 4：Inform()函数
MediaInfo源代码分析 5：JPEG解析代码分析
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我们来看一下MediaInfo中的Open()函数的内部调用过程
首先open函数封装了MediaInfo_Internal类中的open()函数
//打开文件
size_t MediaInfo::Open(const String &File_Name_)
{//封装了一层return Internal->Open(File_Name_);
}
查看一下MediaInfo_Internal类中的open()函数的源代码：
//打开文件
size_t MediaInfo_Internal::Open(const String &File_Name_)
{Close();CS.Enter();MEDIAINFO_DEBUG_CONFIG_TEXT(Debug+=__T("Open, File=");Debug+=Ztring(File_Name_).c_str();)//清空文件列表Config.File_Names.clear();if (Config.File_FileNameFormat_Get()==__T("CSV")){Config.File_Names.Separator_Set(0, __T(","));Config.File_Names.Write(File_Name_);}//添加文件名到文件名列表else if (!File_Name_.empty())Config.File_Names.push_back(File_Name_);if (Config.File_Names.empty()){CS.Leave();return 0;}Config.File_Names_Pos=1;CS.Leave();//Parsing//解析if (BlockMethod==1){if (!IsInThread) //If already created, the routine will read the new files{Run();IsInThread=true;}return 0;}else{Entry(); //Normal parsingreturn Count_Get(Stream_General);}
}
在打开之前首先调用Close()进行清理，将文件路径添加到一个列表（实际上是一个Vector）中，调用Entry()进行解析。
查看一下Entry()函数的源代码：
//解析函数
void MediaInfo_Internal::Entry()
{CS.Enter();MEDIAINFO_DEBUG_CONFIG_TEXT(Debug+=__T("Entry");)Config.State_Set(0);CS.Leave();//解析文件名（是否包含MMS？）//需要libmmsif ((Config.File_Names[0].size()>=6&& Config.File_Names[0][0]==__T('m')&& Config.File_Names[0][1]==__T('m')&& Config.File_Names[0][2]==__T('s')&& Config.File_Names[0][3]==__T(':')&& Config.File_Names[0][4]==__T('/')&& Config.File_Names[0][5]==__T('/'))|| (Config.File_Names[0].size()>=7&& Config.File_Names[0][0]==__T('m')&& Config.File_Names[0][1]==__T('m')&& Config.File_Names[0][2]==__T('s')&& Config.File_Names[0][3]==__T('h')&& Config.File_Names[0][4]==__T(':')&& Config.File_Names[0][5]==__T('/')&& Config.File_Names[0][6]==__T('/')))#if defined(MEDIAINFO_LIBMMS_YES)Reader_libmms().Format_Test(this, Config.File_Names[0]);#else //MEDIAINFO_LIBMMS_YES{#if MEDIAINFO_EVENTSstruct MediaInfo_Event_Log_0 Event;Event.EventCode=MediaInfo_EventCode_Create(MediaInfo_Parser_None, MediaInfo_Event_Log, 0);Event.Type=0xC0;Event.Severity=0xFF;Event.MessageCode=0;Event.MessageStringU=L"Libmms cupport is disabled due to compilation options";Event.MessageStringA="Libmms cupport is disabled due to compilation options";MediaInfoLib::Config.Event_Send((const int8u*)&Event, sizeof(MediaInfo_Event_Log_0));#endif //MEDIAINFO_EVENTS}#endif //MEDIAINFO_LIBMMS_YES//是否包含网络协议？（标记为://）//需要使用libcurl - the multiprotocol file transfer libraryelse if (Config.File_Names[0].find(__T("://"))!=string::npos)#if defined(MEDIAINFO_LIBCURL_YES){CS.Enter();if (Reader){CS.Leave();return; //There is a problem}Reader=new Reader_libcurl();CS.Leave();Reader->Format_Test(this, Config.File_Names[0]);#if MEDIAINFO_NEXTPACKETif (Config.NextPacket_Get())return;#endif //MEDIAINFO_NEXTPACKET}#else //MEDIAINFO_LIBCURL_YES{#if MEDIAINFO_EVENTSstruct MediaInfo_Event_Log_0 Event;Event.EventCode=MediaInfo_EventCode_Create(MediaInfo_Parser_None, MediaInfo_Event_Log, 0);Event.Type=0xC0;Event.Severity=0xFF;Event.MessageCode=0;Event.MessageStringU=L"Libcurl support is disabled due to compilation options";Event.MessageStringA="Libcurl support is disabled due to compilation options";MediaInfoLib::Config.Event_Send((const int8u*)&Event, sizeof(MediaInfo_Event_Log_0));#endif //MEDIAINFO_EVENTS}#endif //MEDIAINFO_LIBCURL_YES#if defined(MEDIAINFO_DIRECTORY_YES)else if (Dir::Exists(Config.File_Names[0]))Reader_Directory().Format_Test(this, Config.File_Names[0]);#endif //MEDIAINFO_DIRECTORY_YES//是普通文件，并且文件存在#if defined(MEDIAINFO_FILE_YES)else if (File::Exists(Config.File_Names[0])){#if defined(MEDIAINFO_REFERENCES_YES)string Dxw;if (Config.File_CheckSideCarFiles_Get() && !Config.File_IsReferenced_Get()){//Zenlib中竟然包含专用于文件名操作的类！FileName Test(Config.File_Names[0]);//获得小写的文件名后缀Ztring FileExtension=Test.Extension_Get();FileExtension.MakeLowerCase();//逐个比较（这些都是文本文件的后缀）if (FileExtension!=__T("dfxp")){Test.Extension_Set(__T("dfxp"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".dfxp\" />\r\n";}if (FileExtension!=__T("sami")){Test.Extension_Set(__T("sami"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".sami\" />\r\n";}if (FileExtension!=__T("sc2")){Test.Extension_Set(__T("sc2"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".sc2\" />\r\n";}if (FileExtension!=__T("scc")){Test.Extension_Set(__T("scc"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".scc\" />\r\n";}if (FileExtension!=__T("smi")){Test.Extension_Set(__T("smi"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".smi\" />\r\n";}//字幕if (FileExtension!=__T("srt")){Test.Extension_Set(__T("srt"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".srt\" />\r\n";}if (FileExtension!=__T("stl")){Test.Extension_Set(__T("stl"));if (File::Exists(Test))Dxw+=" <clip file=\""+Test.Name_Get().To_UTF8()+".stl\" />\r\n";}Ztring Name=Test.Name_Get();Ztring BaseName=Name.SubString(Ztring(), __T("_"));if (!BaseName.empty()){ZtringList List;List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_audio.mp4"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.dfxp"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.sami"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.sc2"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.scc"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.smi"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.srt"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_sub.stl"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.dfxp"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.sami"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.sc2"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.scc"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.smi"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.srt"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_forcesub.stl"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.dfxp"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.sami"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.sc2"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.scc"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.smi"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.srt"), Dir::Include_Files);List+=Dir::GetAllFileNames(Test.Path_Get()+PathSeparator+BaseName+__T("_*_cc.stl"), Dir::Include_Files);for (size_t Pos=0; Pos<List.size(); Pos++)Dxw+=" <clip file=\""+List[Pos].To_UTF8()+"\" />\r\n";}if (!Dxw.empty()){Dxw.insert(0, "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\r\n""<indexFile xmlns=\"urn:digimetrics-xml-wrapper\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"urn:digimetrics-xml-wrapper DMSCLIP.XSD\">\r\n"" <clip source=\"main\" file=\""+FileName(Config.File_Names[0]).Name_Get().To_UTF8()+"."+FileName(Config.File_Names[0]).Extension_Get().To_UTF8()+"\" />\r\n");Dxw.append("</indexFile>\r\n");Config.File_FileNameFormat_Set(__T("Dxw"));}}//为空if (Dxw.empty()){CS.Enter();if (Reader){CS.Leave();return; //There is a problem}Reader=new Reader_File();CS.Leave();//测试格式Reader->Format_Test(this, Config.File_Names[0]);}else{//初始化BufferOpen_Buffer_Init(Dxw.size(), FileName(Config.File_Names[0]).Path_Get()+PathSeparator+FileName(Config.File_Names[0]).Name_Get());Open_Buffer_Continue((const int8u*)Dxw.c_str(), Dxw.size());Open_Buffer_Finalize();}#else //defined(MEDIAINFO_REFERENCES_YES)CS.Enter();if (Reader){CS.Leave();return; //There is a problem}Reader=new Reader_File();CS.Leave();Reader->Format_Test(this, Config.File_Names[0]);#endif //defined(MEDIAINFO_REFERENCES_YES)#if MEDIAINFO_NEXTPACKETif (Config.NextPacket_Get())return;#endif //MEDIAINFO_NEXTPACKET}#endif //MEDIAINFO_FILE_YESCS.Enter();Config.State_Set(1);CS.Leave();
}
我们可以看出，MediaInfo支持流媒体协议作为输入源（例如mms），但前提是要使用相应的库（libmms，或者libcurl）。它会首先查找文件路径中有没有“://”，判断是否是流媒体输入。
大多数情况下，我们使用本地文件路径作为输入源。这是我们就进入了代码中“#if defined(MEDIAINFO_FILE_YES) "部分下面的代码。具体每块代码的左右都写在代码注释中了，不再细说。最后使用 Reader_File的Format_Test()测试输入文件的格式。
看一下Reader_File的Format_Test()的源代码：
//用于测试文件格式
size_t Reader_File::Format_Test(MediaInfo_Internal* MI, String File_Name)
{//std::cout<<Ztring(File_Name).To_Local().c_str()<<std::endl;//With Parser MultipleParsing/*MI->Open_Buffer_Init((int64u)-1, File_Name);if (Format_Test_PerParser(MI, File_Name))return 1;return 0; //There is a problem*///Get the Extension//文件后缀Ztring Extension=FileName::Extension_Get(File_Name);Extension.MakeLowerCase();//Search the theorical format from extensionInfoMap &FormatList=MediaInfoLib::Config.Format_Get();InfoMap::iterator Format=FormatList.end();if (!MI->Config.File_ForceParser_Get().empty())Format=FormatList.find(MI->Config.File_ForceParser_Get());if (Format==FormatList.end()){Format=FormatList.begin();while (Format!=FormatList.end()){const Ztring &Extensions=FormatList.Get(Format->first, InfoFormat_Extensions);if (Extensions.find(Extension)!=Error){if(Extension.size()==Extensions.size())break; //Only one extenion in the listif(Extensions.find(Extension+__T(" "))!=Error|| Extensions.find(__T(" ")+Extension)!=Error)break;}++Format;}}if (Format!=FormatList.end()){const Ztring &Parser=Format->second(InfoFormat_Parser);if (MI->SelectFromExtension(Parser)){//Test the theorical formatif (Format_Test_PerParser(MI, File_Name)>0)return 1;}}//遍历所有支持格式，测试格式size_t ToReturn=MI->ListFormats(File_Name);return ToReturn;
}
可以看出，最后遍历了所有支持的格式，试图找出合适的格式。
最后我们看一下ListFormats()函数，用于找出匹配的格式。
由代码可见，遍历测试每一种支持的格式。
int MediaInfo_Internal::ListFormats(const String &File_Name)
{// Multiple// 看看这些格式都是否支持//从上往下遍历//如果遇到某一格式，返回值为1，便不再进行//否则就进行下一个，直到遍历完#if defined(MEDIAINFO_BDAV_YES)delete Info; Info=new File_MpegTs(); ((File_MpegTs*)Info)->BDAV_Size=4; if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_BDMV_YES)delete Info; Info=new File_Bdmv(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_CDXA_YES)delete Info; Info=new File_Cdxa(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DCP_YES)delete Info; Info=new File_Dcp(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DVDIF_YES)delete Info; Info=new File_DvDif(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DVDV_YES)delete Info; Info=new File_Dvdv(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DXW_YES)delete Info; Info=new File_Dxw(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_FLV_YES)//检测delete Info; Info=new File_Flv(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_GXF_YES)delete Info; Info=new File_Gxf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_HLS_YES)delete Info; Info=new File_Hls(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_IBI_YES)delete Info; Info=new File_Ibi(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ISM_YES)delete Info; Info=new File_Ism(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_IVF_YES)delete Info; Info=new File_Ivf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_LXF_YES)delete Info; Info=new File_Lxf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MK_YES)delete Info; Info=new File_Mk(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEG4_YES)delete Info; Info=new File_Mpeg4(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEGPS_YES)delete Info; Info=new File_MpegPs(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEGTS_YES)delete Info; Info=new File_MpegTs(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPLI_YES)delete Info; Info=new File_Mpli(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MXF_YES)delete Info; Info=new File_Mxf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_NUT_YES)delete Info; Info=new File_Nut(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_OGG_YES)delete Info; Info=new File_Ogg(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_P2_YES)delete Info; Info=new File_P2_Clip(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_PMP_YES)delete Info; Info=new File_Pmp(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_RIFF_YES)delete Info; Info=new File_Riff(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_RM_YES)delete Info; Info=new File_Rm(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SEQUENCEINFO_YES)delete Info; Info=new File_SequenceInfo(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SKM_YES)delete Info; Info=new File_Skm(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SWF_YES)delete Info; Info=new File_Swf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TSP_YES)delete Info; Info=new File_MpegTs(); ((File_MpegTs*)Info)->TSP_Size=16; if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_WM_YES)delete Info; Info=new File_Wm(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_XDCAM_YES)delete Info; Info=new File_Xdcam_Clip(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DPG_YES)delete Info; Info=new File_Dpg(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Video#if defined(MEDIAINFO_AVC_YES)delete Info; Info=new File_Avc(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_HEVC_YES)delete Info; Info=new File_Hevc(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_AVSV_YES)delete Info; Info=new File_AvsV(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DIRAC_YES)delete Info; Info=new File_Dirac(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_FLIC_YES)delete Info; Info=new File_Flic(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_H263_YES)delete Info; Info=new File_H263(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEG4V_YES)delete Info; Info=new File_Mpeg4v(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEGV_YES)delete Info; Info=new File_Mpegv(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_VC1_YES)delete Info; Info=new File_Vc1(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_VC3_YES)delete Info; Info=new File_Vc3(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_Y4M_YES)delete Info; Info=new File_Y4m(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Audio#if defined(MEDIAINFO_AAC_YES)delete Info; Info=new File_Aac(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_AC3_YES)delete Info; Info=new File_Ac3(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SMPTEST0337_YES)delete Info; Info=new File_SmpteSt0337(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ALS_YES)delete Info; Info=new File_Als(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_AMR_YES)delete Info; Info=new File_Amr(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_AMV_YES)delete Info; Info=new File_Amv(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_APE_YES)delete Info; Info=new File_Ape(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_AU_YES)delete Info; Info=new File_Au(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DTS_YES)delete Info; Info=new File_Dts(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif
// Too many false-positives
// #if defined(MEDIAINFO_DOLBYE_YES)
// delete Info; Info=new File_DolbyE(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;
// #endif#if defined(MEDIAINFO_FLAC_YES)delete Info; Info=new File_Flac(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_IT_YES)delete Info; Info=new File_ImpulseTracker(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_LA_YES)delete Info; Info=new File_La(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MIDI_YES)delete Info; Info=new File_Midi(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MOD_YES)delete Info; Info=new File_Module(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPC_YES)delete Info; Info=new File_Mpc(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPCSV8_YES)delete Info; Info=new File_MpcSv8(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MPEGA_YES)delete Info; Info=new File_Mpega(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_RKAU_YES)delete Info; Info=new File_Rkau(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TAK_YES)delete Info; Info=new File_Tak(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_S3M_YES)delete Info; Info=new File_ScreamTracker3(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TTA_YES)delete Info; Info=new File_Tta(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TWINVQ_YES)delete Info; Info=new File_TwinVQ(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_WVPK_YES)delete Info; Info=new File_Wvpk(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_XM_YES)delete Info; Info=new File_ExtendedModule(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Text#if defined(MEDIAINFO_N19_YES)delete Info; Info=new File_N19(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SCC_YES)delete Info; Info=new File_Scc(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_SUBRIP_YES)delete Info; Info=new File_SubRip(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TTML_YES)delete Info; Info=new File_Ttml(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_OTHERTEXT_YES)delete Info; Info=new File_OtherText(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Image#if defined(MEDIAINFO_BMP_YES)delete Info; Info=new File_Bmp(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_DPX_YES)delete Info; Info=new File_Dpx(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_GIF_YES)delete Info; Info=new File_Gif(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ICO_YES)delete Info; Info=new File_Ico(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_JPEG_YES)delete Info; Info=new File_Jpeg(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_PCX_YES)delete Info; Info=new File_Pcx(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_PNG_YES)delete Info; Info=new File_Png(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_PSD_YES)delete Info; Info=new File_Psd(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TIFF_YES)delete Info; Info=new File_Tiff(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TGA_YES)delete Info; Info=new File_Tga(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Archive#if defined(MEDIAINFO_ACE_YES)delete Info; Info=new File_Ace(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_7Z_YES)delete Info; Info=new File_7z(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_BZIP2_YES)delete Info; Info=new File_Bzip2(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ELF_YES)delete Info; Info=new File_Elf(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_GZIP_YES)delete Info; Info=new File_Gzip(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ISO9660_YES)delete Info; Info=new File_Iso9660(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_MZ_YES)delete Info; Info=new File_Mz(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_RAR_YES)delete Info; Info=new File_Rar(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_TAR_YES)delete Info; Info=new File_Tar(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif#if defined(MEDIAINFO_ZIP_YES)delete Info; Info=new File_Zip(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Other#if !defined(MEDIAINFO_OTHER_NO)delete Info; Info=new File_Other(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;#endif// Default (empty)delete Info; Info=new File_Unknown(); if (((Reader_File*)Reader)->Format_Test_PerParser(this, File_Name)>0) return 1;return 0;
}
至此Open()函数的分析完毕。