/* * * $Id: k3bmpeginfo.h 619556 2007-01-03 17:38:12Z trueg $ * Copyright (C) 2003-2004 Christian Kvasny * * This file is part of the K3b project. * Copyright (C) 1998-2007 Sebastian Trueg * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * See the file "COPYING" for the exact licensing terms. */ #ifndef K3BMPEGINFO #define K3BMPEGINFO #include // #define BUFFERSIZE 16384 #define BUFFERSIZE 65536 #define MPEG_START_CODE_PATTERN ((ulong) 0x00000100) #define MPEG_START_CODE_MASK ((ulong) 0xffffff00) #define MPEG_PICTURE_CODE ((ulong) 0x00000100) /* [...slice codes... 0x1a7] */ #define MPEG_USER_CODE ((uchar) 0xb2) #define MPEG_SEQUENCE_CODE ((uchar) 0xb3) #define MPEG_EXT_CODE ((uchar) 0xb5) #define MPEG_SEQ_END_CODE ((uchar) 0xb7) #define MPEG_GOP_CODE ((uchar) 0xb8) #define MPEG_PROGRAM_END_CODE ((uchar) 0xb9) #define MPEG_PACK_HEADER_CODE ((uchar) 0xba) #define MPEG_SYSTEM_HEADER_CODE ((uchar) 0xbb) #define MPEG_PRIVATE_1_CODE ((uchar) 0xbd) #define MPEG_PAD_CODE ((uchar) 0xbe) #define MPEG_AUDIO_C0_CODE ((uchar) 0xc0) /* default */ #define MPEG_AUDIO_C1_CODE ((uchar) 0xc1) /* 2nd audio stream id (dual channel) */ #define MPEG_AUDIO_C2_CODE ((uchar) 0xc2) /* 3rd audio stream id (surround sound) */ #define MPEG_VIDEO_E0_CODE ((uchar) 0xe0) /* motion */ #define MPEG_VIDEO_E1_CODE ((uchar) 0xe1) /* lowres still */ #define MPEG_VIDEO_E2_CODE ((uchar) 0xe2) /* hires still */ #define FLOAT_0x10000 (double)((unsigned long)1 << 16) #define STD_SYSTEM_CLOCK_FREQ (unsigned long)90000 typedef unsigned char byte; typedef long long llong; #include class video_info { public: bool seen; unsigned long hsize; unsigned long vsize; double aratio; double frate; unsigned long bitrate; unsigned long vbvsize; bool progressive; unsigned char video_format; unsigned char chroma_format; bool constrained_flag; }; class audio_info { public: bool seen; unsigned int version; unsigned int layer; unsigned int protect; unsigned long bitrate; float byterate; unsigned long sampfreq; int mode; bool copyright; bool original; }; class Mpeginfo { public: Mpeginfo() : version( 0 ), muxrate( 0 ), playing_time( 0 ), has_video ( false ), has_audio ( false ) { for ( int i = 0; i < 3; i++ ) { video[ i ].seen = false; audio[ i ].seen = false; } }; ~Mpeginfo() {} ; unsigned int version; unsigned long muxrate; double playing_time; bool has_video; bool has_audio; video_info video[ 3 ]; audio_info audio[ 3 ]; }; class K3bMpegInfo { public: K3bMpegInfo( const char* filename ); ~K3bMpegInfo(); enum mpeg_version { MPEG_VERS_INVALID = 0, MPEG_VERS_MPEG1 = 1, MPEG_VERS_MPEG2 = 2 }; enum mode { MPEG_STEREO = 1, MPEG_JOINT_STEREO, MPEG_DUAL_CHANNEL, MPEG_SINGLE_CHANNEL }; const int version() { return mpeg_info->version; }; const TQString error_string() { return m_error_string; }; Mpeginfo* mpeg_info; private: // General ToolBox byte GetByte( llong offset ); byte bdGetByte( llong offset ); llong GetNBytes( llong, int ); unsigned short int GetSize( llong offset ); llong FindNextMarker( llong ); llong FindNextMarker( llong, byte* ); llong FindNextMarker( llong, byte ); llong bdFindNextMarker( llong, byte ); llong bdFindNextMarker( llong, byte* ); llong FindNextVideo( llong ); llong FindNextAudio( llong ); int GetVideoIdx ( byte ); int GetAudioIdx ( byte ); bool EnsureMPEG( llong, byte ); void ParseVideo ( llong, byte ); void ParseAudio ( llong, byte ); bool MpegParsePacket (); llong MpegParsePacket ( llong ); llong SkipPacketHeader( llong ); double ReadTS( llong offset ); double ReadTSMpeg2( llong offset ); FILE* m_mpegfile; const char* m_filename; llong m_filesize; bool m_done; llong m_buffstart; llong m_buffend; byte* m_buffer; double m_initial_TS; TQString m_error_string; }; #endif //K3bMpegInfo