mpg_common.h

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/*
 * mpg_common.h
 *        
 *
 * Copyright (C) 2003 Marcus Metzler <mocm@metzlerbros.de>
 *                    Metzler Brothers Systementwicklung GbR
 *
 * 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.
 *
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * General Public License for more details.
 *
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 *
 */
 
#ifndef MPG_COMMON_H
#define MPG_COMMON_H
 
#include <cstdint>
#include "ringbuffer.h"
 
 
 
struct index_unit {
        uint8_t  active;
        uint32_t length;
        uint32_t start;
        uint64_t pts;
        uint64_t dts;
        uint8_t  seq_header;
        uint8_t  seq_end;
        uint8_t  gop;
        uint8_t  end_seq;
        uint8_t  frame;
        uint8_t  gop_off;
        uint8_t  frame_off;
        uint8_t  frame_start;
        uint8_t  err;
        uint32_t framesize;
        uint64_t ptsrate;
};
 
struct extdata_t {
        index_unit iu;
        uint64_t pts;
        uint64_t pts_off;
        int type;
        int strmnum;
        int frmperpkt;
        char language[4];
        dummy_buffer dbuf;
};
 
 
#define NO_ERR    0
#define FRAME_ERR 1
 
 
void show_buf(uint8_t *buf, int length);
int find_mpg_header(uint8_t head, const uint8_t *buf, int length);
int find_any_header(uint8_t *head, const uint8_t *buf, int length);
uint64_t trans_pts_dts(const uint8_t *pts);
int mring_peek( ringbuffer *rbuf, uint8_t *buf, unsigned int l, uint32_t off);
int mring_peek( ringbuffer *rbuf, peek_poke_vec &buf, unsigned int l, uint32_t off);
int ring_find_mpg_header(ringbuffer *rbuf, uint8_t head, int off, int le);
int ring_find_any_header(ringbuffer *rbuf, uint8_t *head, int off, int le);
 
#endif /* MPG_COMMON_H */