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/*************************************************************************
* Generating a MPEG/SYSTEMS *
* MULTIPLEXED VIDEO/AUDIO STREAM *
* from two MPEG source streams *
* Christoph Moar *
* SIEMENS CORPORATE RESEARCH AND DEVELOPMENT ST SN 11 / T SN 6 *
* (C) 1994 1995 *
**************************************************************************
* Restrictions apply. Will not support the whole MPEG/SYSTEM Standard. *
* Basically, will generate Constrained System Parameter Files. *
* Mixes only one audio and/or one video stream. Might be expanded. *
*************************************************************************/
/*************************************************************************
* mplex - MPEG/SYSTEMS multiplexer *
* Copyright (C) 1994 1995 Christoph Moar *
* Siemens ZFE ST SN 11 / T SN 6 *
* *
* moar@informatik.tu-muenchen.de *
* (Christoph Moar) *
* *
* 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 *
* GNU 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., 675 Mass Ave, Cambridge, MA 02139, USA. *
*************************************************************************/
#ifndef __MAIN_H__
#define __MAIN_H__
#include <glib.h>
#define PACK_START 0x000001ba
#define SYS_HEADER_START 0x000001bb
#define ISO11172_END 0x000001b9
#define PACKET_START 0x000001
#define CLOCKS 90000.0 /* System Clock Hertz */
#define AFTER_PACKET_LENGTH 15 /* No of non-data-bytes */
/* following the packet */
/* length field */
#define LAST_SCR_BYTE_IN_PACK 9 /* No of bytes in pack */
/* preceding, and */
/* including, the SCR */
/* The following values for sys_header_length & size are only valid for */
/* System streams consisting of two basic streams. When wrapping around */
/* the system layer on a single video or a single audio stream, those */
/* values get decreased by 3. */
#define SYS_HEADER_LENGTH 12 /* length of Sys Header */
/* after start code and */
/* length field */
#define SYS_HEADER_SIZE 18 /* incl. start code and */
/* length field */
#define PACK_HEADER_SIZE 12
#define PACKET_HEADER_SIZE 6
#define MAX_SECTOR_SIZE 0x20000 /* Max Sektor Groesse */
#define STREAMS_VIDEO 1
#define STREAMS_AUDIO 2
#define STREAMS_BOTH 3
#define AUDIO_STREAMS 0xb8 /* Marker Audio Streams */
#define VIDEO_STREAMS 0xb9 /* Marker Video Streams */
#define AUDIO_STR_0 0xc0 /* Marker Audio Stream0 */
#define VIDEO_STR_0 0xe0 /* Marker Video Stream0 */
#define PADDING_STR 0xbe /* Marker Padding Stream */
#define ZERO_STUFFING_BYTE 0
#define STUFFING_BYTE 0xff
#define RESERVED_BYTE 0xff
#define TIMESTAMPS_NO 0 /* Flag NO timestamps */
#define TIMESTAMPS_PTS 1 /* Flag PTS timestamp */
#define TIMESTAMPS_PTS_DTS 2 /* Flag BOTH timestamps */
#define MARKER_SCR 2 /* Marker SCR */
#define MARKER_JUST_PTS 2 /* Marker only PTS */
#define MARKER_PTS 3 /* Marker PTS */
#define MARKER_DTS 1 /* Marker DTS */
#define MARKER_NO_TIMESTAMPS 0x0f /* Marker NO timestamps */
#define STATUS_AUDIO_END 0 /* Statusmessage A end */
#define STATUS_VIDEO_END 1 /* Statusmessage V end */
#define STATUS_AUDIO_TIME_OUT 2 /* Statusmessage A out */
#define STATUS_VIDEO_TIME_OUT 3 /* Statusmessage V out */
/*************************************************************************
Typ- und Strukturdefinitionen
*************************************************************************/
typedef struct sector_struc /* A sector, can contain pack, sys header */
/* and packet. */
{
unsigned char buf[MAX_SECTOR_SIZE];
unsigned int length_of_sector;
unsigned int length_of_packet_data;
guint64 TS;
} Sector_struc;
typedef struct pack_struc /* Pack Info */
{
unsigned char buf[PACK_HEADER_SIZE];
guint64 SCR;
} Pack_struc;
typedef struct sys_header_struc /* System Header Info */
{
unsigned char buf[SYS_HEADER_SIZE];
} Sys_header_struc;
/*************************************************************************
Funktionsprototypen, keine Argumente, K&R Style
*************************************************************************/
/* systems.c */
void create_sector (Sector_struc * sector, Pack_struc * pack,
Sys_header_struc * sys_header, unsigned int packet_size,
unsigned char *inputbuffer, unsigned char type, unsigned char buffer_scale,
unsigned int buffer_size, unsigned char buffers, guint64 PTS, guint64 DTS,
unsigned char timestamps, unsigned int which_streams);
void create_pack (Pack_struc * pack, guint64 SCR, unsigned int mux_rate);
void create_sys_header (Sys_header_struc * sys_header, unsigned int rate_bound,
unsigned char audio_bound, unsigned char fixed, unsigned char CSPS,
unsigned char audio_lock, unsigned char video_lock,
unsigned char video_bound, unsigned char stream1,
unsigned char buffer1_scale, unsigned int buffer1_size,
unsigned char stream2, unsigned char buffer2_scale,
unsigned int buffer2_size, unsigned int which_streams);
#endif
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