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/*
* remux.h: A streaming MPEG2 remultiplexer
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: remux.h 1.1 2001/03/31 08:42:27 kls Exp $
*/
#ifndef __REMUX_H
#define __REMUX_H
// There are various experiments with different types of remultiplexers
// going on at the moment. Select the remultiplexer here:
#define REMUX_NONE 1
//#define REMUX_TEST 1
// Picture types:
#define NO_PICTURE 0
#define I_FRAME 1
#define P_FRAME 2
#define B_FRAME 3
// Start codes:
#define SC_PICTURE 0x00 // "picture header"
#define SC_SEQU 0xB3 // "sequence header"
#define SC_PHEAD 0xBA // "pack header"
#define SC_SHEAD 0xBB // "system header"
#define SC_AUDIO 0xC0
#define SC_VIDEO 0xE0
// The minimum amount of video data necessary to identify frames:
#define MINVIDEODATA (256*1024) // just a safe guess (max. size of any frame block, plus some safety)
typedef unsigned char uchar;
class cRemux {
private:
#if defined(REMUX_NONE)
bool synced;
int GetPacketLength(const uchar *Data, int Count, int Offset);
int ScanVideoPacket(const uchar *Data, int Count, int Offset, uchar &PictureType);
#elif defined(REMUX_TEST)
#endif
public:
cRemux(void);
~cRemux();
const uchar *Process(const uchar *Data, int &Count, int &Result, uchar &PictureType);
};
#endif // __REMUX_H
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