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Diffstat (limited to 'libk3b/projects/videocd/mpeginfo/k3bmpeginfo.h')
| -rw-r--r-- | libk3b/projects/videocd/mpeginfo/k3bmpeginfo.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/libk3b/projects/videocd/mpeginfo/k3bmpeginfo.h b/libk3b/projects/videocd/mpeginfo/k3bmpeginfo.h new file mode 100644 index 0000000..3436214 --- /dev/null +++ b/libk3b/projects/videocd/mpeginfo/k3bmpeginfo.h @@ -0,0 +1,178 @@ +/* +* +* $Id: k3bmpeginfo.h 619556 2007-01-03 17:38:12Z trueg $ +* Copyright (C) 2003-2004 Christian Kvasny <[email protected]> +* +* This file is part of the K3b project. +* Copyright (C) 1998-2007 Sebastian Trueg <[email protected]> +* +* 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 <stdio.h> + +// #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 <kdebug.h> + +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 QString 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; + QString m_error_string; + +}; + +#endif //K3bMpegInfo |