| /************************************************************************* |
| * 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 |
