File: dvdspu.h

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vdr-plugin-dvd 0.3.6~b03+cvs20090426.0013-3
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/*
 * DVD Player plugin for VDR
 *
 * Copyright (C) 2001.2002 Andreas Schultz <aschultz@warp10.net>
 *
 * This code is distributed under the terms and conditions of the
 * GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
 *
 * parts of this file are derived from the OMS program.
 *
 */

#ifndef __DVDSPU_H__
#define __DVDSPU_H__

#include <inttypes.h>

#define SPU_BUFFER_SIZE         (128*1024)

class simpleFIFO {
 private:
    uint8_t *buffer;
    int head;
    int tail;
    int size;

 public:
    simpleFIFO(int Size);
    ~simpleFIFO();
    int Put(const uint8_t *Data, int Count);
    int Get(uint8_t *Data, int Count);
    int Release(int Count);

    int Size(void) const
	{ return size; };
    int Free(void) const
	{ return ((size + tail) - head - 1) % size; };
    int Available(void) const
	{ return ((head + size) - tail) % size; };
    uint8_t const &operator[] (int i) const
	{ return buffer[(tail + i) % size]; };
};

class cSPUassembler: public simpleFIFO
{
 private:
    uint64_t pts;
 public:
    cSPUassembler();

    bool ready(void)
	{ return ((Available() > 2) && (Available() >= getSize())); };
    int getSize(void) { return ((operator[](0)) << 8) | operator[](1); };
    uint64_t getPts(void) { return pts; };

    int Put(const uint8_t *Data, int Count, uint64_t Pts);
};

#endif