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Diffstat (limited to 'gst/mpeg1sys/main.h')
| -rw-r--r-- | gst/mpeg1sys/main.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/gst/mpeg1sys/main.h b/gst/mpeg1sys/main.h new file mode 100644 index 00000000..434f57f5 --- /dev/null +++ b/gst/mpeg1sys/main.h @@ -0,0 +1,140 @@ +/************************************************************************* +* 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 |