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/*
*
* $Id: k3bmpeginfo.h 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2003-2004 Christian Kvasny <chris@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* 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 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
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