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