1 /* 2 * MP3val - a program for MPEG audio file validation 3 * Copyright (C) 2005-2009 Alexey Kuznetsov (ring0) and Eugen Tikhonov (jetsys) 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 20 #ifndef __MPEGPARSE_H__ 21 #define __MPEGPARSE_H__ 22 23 #include <iostream> 24 25 /* 26 * MPEGINFO structure is used to contain both information about the last analyzed 27 * frame (filled by ValidateMPEGFrame) and for the entire stream. 28 */ 29 30 31 struct MPEGINFO { 32 //MPEG frames counts 33 int mpeg1layer1; 34 int mpeg1layer2; 35 int mpeg1layer3; 36 int mpeg2layer1; 37 int mpeg2layer2; 38 int mpeg2layer3; 39 int mpeg25layer1; 40 int mpeg25layer2; 41 int mpeg25layer3; 42 //Tag counts 43 int id3v1; 44 int id3v2; 45 int apev2; 46 47 //VBR header info 48 bool VBRHeaderPresent; 49 bool IsXingHeader; //otherwise it's Fraunhofer VBRI header 50 bool BytesPresent; 51 int iBytes; 52 bool FramesPresent; 53 int iFrames; 54 int iFirstMPEGFrameSize; //because Foobar2000 doesn't count the first frame (with Xing header) as MPEG data 55 56 //Error flags 57 int riff; 58 int unknown_format; 59 int truncated; 60 int mpeg_stream_error; 61 int garbage_at_the_begin; 62 int garbage_at_the_end; 63 64 //MPEG-related data 65 bool LastFrameStereo; 66 bool bLastFrameCRC; 67 bool bCRC; 68 bool bCRCError; 69 int iLastBitrate; 70 int iLastMPEGLayer; 71 int iLastMPEGVersion; 72 //Miscellaneous data 73 bool bVariableBitrate; 74 int iTotalMPEGBytes; 75 int iErrors; 76 int iDeletedFrames; 77 int iCRCErrors; 78 MPEGINFOMPEGINFO79 MPEGINFO() { 80 clear(); 81 } 82 clearMPEGINFO83 void clear() { 84 mpeg1layer1=0; 85 mpeg1layer2=0; 86 mpeg1layer3=0; 87 mpeg2layer1=0; 88 mpeg2layer2=0; 89 mpeg2layer3=0; 90 mpeg25layer1=0; 91 mpeg25layer2=0; 92 mpeg25layer3=0; 93 id3v1=0; 94 id3v2=0; 95 apev2=0; 96 97 VBRHeaderPresent=false; 98 IsXingHeader=true; 99 BytesPresent=false; 100 iBytes=-1; 101 FramesPresent=false; 102 iFrames=-1; 103 104 riff=-1; 105 unknown_format=-1; 106 mpeg_stream_error=-1; 107 truncated=-1; 108 garbage_at_the_begin=-1; 109 garbage_at_the_end=-1; 110 111 LastFrameStereo=false; 112 bLastFrameCRC=false; 113 bCRC=false; 114 bCRCError=false; 115 bVariableBitrate=false; 116 iLastBitrate=-2; 117 iLastMPEGLayer=0; 118 iLastMPEGVersion=0; 119 iCRCErrors=0; 120 121 iTotalMPEGBytes=0; 122 iErrors=0; 123 iDeletedFrames=0; 124 } 125 }; 126 127 int ValidateFile(unsigned char *baseptr,int iFileSize, MPEGINFO *mpginfo,std::ostream *out,char *filename,bool fix,int hFile); 128 129 #endif 130