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vdr-plugin-streamdev/libdvbmpeg/ctools.h
lordjaxom 302fa2e672 Initial revision
2004-12-30 22:43:55 +00:00

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/*
* dvb-mpegtools for the Siemens Fujitsu DVB PCI card
*
* Copyright (C) 2000, 2001 Marcus Metzler
* for convergence integrated media GmbH
* Copyright (C) 2002, 2003 Marcus Metzler
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
* The author can be reached at mocm@metzlerbros.de
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <netinet/in.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <libgen.h>
#include <stdint.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "ringbuffy.h"
#include "transform.h"
#ifndef _CTOOLS_H_
#define _CTOOLS_H_
#define VIDEO_MODE_PAL 0
#define VIDEO_MODE_NTSC 1
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
enum {PS_STREAM, TS_STREAM, PES_STREAM};
enum {pDUNNO, pPAL, pNTSC};
uint64_t trans_pts_dts(uint8_t *pts);
/*
PES
*/
#define PROG_STREAM_MAP 0xBC
#ifndef PRIVATE_STREAM1
#define PRIVATE_STREAM1 0xBD
#endif
#define PADDING_STREAM 0xBE
#ifndef PRIVATE_STREAM2
#define PRIVATE_STREAM2 0xBF
#endif
#define AUDIO_STREAM_S 0xC0
#define AUDIO_STREAM_E 0xDF
#define VIDEO_STREAM_S 0xE0
#define VIDEO_STREAM_E 0xEF
#define ECM_STREAM 0xF0
#define EMM_STREAM 0xF1
#define DSM_CC_STREAM 0xF2
#define ISO13522_STREAM 0xF3
#define PROG_STREAM_DIR 0xFF
#define BUFFYSIZE 10*MAX_PLENGTH
#define MAX_PTS 8192
#define MAX_FRAME 8192
#define MAX_PACK_L 4096
#define PS_HEADER_L1 14
#define PS_HEADER_L2 (PS_HEADER_L1+18)
#define MAX_H_SIZE (PES_H_MIN + PS_HEADER_L1 + 5)
#define PES_MIN 7
#define PES_H_MIN 9
//flags1
#define FLAGS 0x40
#define SCRAMBLE_FLAGS 0x30
#define PRIORITY_FLAG 0x08
#define DATA_ALIGN_FLAG 0x04
#define COPYRIGHT_FLAG 0x02
#define ORIGINAL_FLAG 0x01
//flags2
#define PTS_DTS_FLAGS 0xC0
#define ESCR_FLAG 0x20
#define ES_RATE_FLAG 0x10
#define DSM_TRICK_FLAG 0x08
#define ADD_CPY_FLAG 0x04
#define PES_CRC_FLAG 0x02
#define PES_EXT_FLAG 0x01
//pts_dts flags
#define PTS_ONLY 0x80
#define PTS_DTS 0xC0
//private flags
#define PRIVATE_DATA 0x80
#define HEADER_FIELD 0x40
#define PACK_SEQ_CTR 0x20
#define P_STD_BUFFER 0x10
#define PES_EXT_FLAG2 0x01
#define MPEG1_2_ID 0x40
#define STFF_LNGTH_MASK 0x3F
typedef struct pes_packet_{
uint8_t stream_id;
uint8_t llength[2];
uint32_t length;
uint8_t flags1;
uint8_t flags2;
uint8_t pes_hlength;
uint8_t pts[5];
uint8_t dts[5];
uint8_t escr[6];
uint8_t es_rate[3];
uint8_t trick;
uint8_t add_cpy;
uint8_t prev_pes_crc[2];
uint8_t priv_flags;
uint8_t pes_priv_data[16];
uint8_t pack_field_length;
uint8_t *pack_header;
uint8_t pck_sqnc_cntr;
uint8_t org_stuff_length;
uint8_t p_std[2];
uint8_t pes_ext_lngth;
uint8_t *pes_ext;
uint8_t *pes_pckt_data;
int padding;
int mpeg;
int mpeg1_pad;
uint8_t *mpeg1_headr;
uint8_t stuffing;
} pes_packet;
void init_pes(pes_packet *p);
void kill_pes(pes_packet *p);
void setlength_pes(pes_packet *p);
void nlength_pes(pes_packet *p);
int cwrite_pes(uint8_t *buf, pes_packet *p, long length);
void write_pes(int fd, pes_packet *p);
int read_pes(int f, pes_packet *p);
void cread_pes(char *buf, pes_packet *p);
/*
Transport Stream
*/
#define TS_SIZE 188
#define TRANS_ERROR 0x80
#define PAY_START 0x40
#define TRANS_PRIO 0x20
#define PID_MASK_HI 0x1F
//flags
#define TRANS_SCRMBL1 0x80
#define TRANS_SCRMBL2 0x40
#define ADAPT_FIELD 0x20
#define PAYLOAD 0x10
#define COUNT_MASK 0x0F
// adaptation flags
#define DISCON_IND 0x80
#define RAND_ACC_IND 0x40
#define ES_PRI_IND 0x20
#define PCR_FLAG 0x10
#define OPCR_FLAG 0x08
#define SPLICE_FLAG 0x04
#define TRANS_PRIV 0x02
#define ADAP_EXT_FLAG 0x01
// adaptation extension flags
#define LTW_FLAG 0x80
#define PIECE_RATE 0x40
#define SEAM_SPLICE 0x20
typedef struct ts_packet_{
uint8_t pid[2];
uint8_t flags;
uint8_t count;
uint8_t data[184];
uint8_t adapt_length;
uint8_t adapt_flags;
uint8_t pcr[6];
uint8_t opcr[6];
uint8_t splice_count;
uint8_t priv_dat_len;
uint8_t *priv_dat;
uint8_t adapt_ext_len;
uint8_t adapt_eflags;
uint8_t ltw[2];
uint8_t piece_rate[3];
uint8_t dts[5];
int rest;
uint8_t stuffing;
} ts_packet;
void init_ts(ts_packet *p);
void kill_ts(ts_packet *p);
unsigned short pid_ts(ts_packet *p);
int cwrite_ts(uint8_t *buf, ts_packet *p, long length);
void write_ts(int fd, ts_packet *p);
int read_ts(int f, ts_packet *p);
void cread_ts (char *buf, ts_packet *p, long length);
/*
Program Stream
*/
#define PACK_STUFF_MASK 0x07
#define FIXED_FLAG 0x02
#define CSPS_FLAG 0x01
#define SAUDIO_LOCK_FLAG 0x80
#define SVIDEO_LOCK_FLAG 0x40
#define PS_MAX 200
typedef struct ps_packet_{
uint8_t scr[6];
uint8_t mux_rate[3];
uint8_t stuff_length;
uint8_t *data;
uint8_t sheader_llength[2];
int sheader_length;
uint8_t rate_bound[3];
uint8_t audio_bound;
uint8_t video_bound;
uint8_t reserved;
int npes;
int mpeg;
} ps_packet;
void init_ps(ps_packet *p);
void kill_ps(ps_packet *p);
void setlength_ps(ps_packet *p);
uint32_t scr_base_ps(ps_packet *p);
uint16_t scr_ext_ps(ps_packet *p);
int mux_ps(ps_packet *p);
int rate_ps(ps_packet *p);
int cwrite_ps(uint8_t *buf, ps_packet *p, long length);
void write_ps(int fd, ps_packet *p);
int read_ps (int f, ps_packet *p);
void cread_ps (char *buf, ps_packet *p, long length);
#define MAX_PLENGTH 0xFFFF
typedef struct sectionstruct {
int id;
int length;
int found;
uint8_t payload[4096+3];
} section;
typedef uint32_t tflags;
#define MAXFILT 32
#define MASKL 16
typedef struct trans_struct {
int found;
uint8_t packet[188];
uint16_t pid[MAXFILT];
uint8_t mask[MAXFILT*MASKL];
uint8_t filt[MAXFILT*MASKL];
uint8_t transbuf[MAXFILT*188];
int transcount[MAXFILT];
section sec[MAXFILT];
tflags is_full;
tflags pes_start;
tflags pes_started;
tflags pes;
tflags set;
} trans;
void init_trans(trans *p);
int set_trans_filt(trans *p, int filtn, uint16_t pid, uint8_t *mask,
uint8_t *filt, int pes);
void clear_trans_filt(trans *p,int filtn);
int filt_is_set(trans *p, int filtn);
int pes_is_set(trans *p, int filtn);
int pes_is_started(trans *p, int filtn);
int pes_is_start(trans *p, int filtn);
int filt_is_ready(trans *p,int filtn);
void trans_filt(uint8_t *buf, int count, trans *p);
void tfilter(trans *p);
void pes_filter(trans *p, int filtn, int off);
void sec_filter(trans *p, int filtn, int off);
int get_filt_buf(trans *p, int filtn,uint8_t **buf);
section *get_filt_sec(trans *p, int filtn);
typedef struct a2pstruct{
int type;
int fd;
int found;
int length;
int headr;
int plength;
uint8_t cid;
uint8_t flags;
uint8_t abuf[MAX_PLENGTH];
int alength;
uint8_t vbuf[MAX_PLENGTH];
int vlength;
uint8_t last_av_pts[4];
uint8_t av_pts[4];
uint8_t scr[4];
uint8_t pid0;
uint8_t pid1;
uint8_t pidv;
uint8_t pida;
} a2p;
void get_pespts(uint8_t *av_pts,uint8_t *pts);
void init_a2p(a2p *p);
void av_pes_to_pes(uint8_t *buf,int count, a2p *p);
int w_pesh(uint8_t id,int length ,uint8_t *pts, uint8_t *obuf);
int w_tsh(uint8_t id,int length ,uint8_t *pts, uint8_t *obuf,a2p *p,int startpes);
void pts2pts(uint8_t *av_pts, uint8_t *pts);
void write_ps_headr(ps_packet *p,uint8_t *pts,int fd);
typedef struct p2t_s{
uint8_t pes[TS_SIZE];
uint8_t counter;
long int pos;
int frags;
void (*t_out)(uint8_t const *buf);
} p2t_t;
void twrite(uint8_t const *buf);
void init_p2t(p2t_t *p, void (*fkt)(uint8_t const *buf));
long int find_pes_header(uint8_t const *buf, long int length, int *frags);
void pes_to_ts( uint8_t const *buf, long int length, uint16_t pid, p2t_t *p);
void p_to_t( uint8_t const *buf, long int length, uint16_t pid,
uint8_t *counter, void (*ts_write)(uint8_t const *));
int write_pes_header(uint8_t id,int length , long PTS,
uint8_t *obuf, int stuffing);
int write_ps_header(uint8_t *buf,
uint32_t SCR,
long muxr,
uint8_t audio_bound,
uint8_t fixed,
uint8_t CSPS,
uint8_t audio_lock,
uint8_t video_lock,
uint8_t video_bound,
uint8_t stream1,
uint8_t buffer1_scale,
uint32_t buffer1_size,
uint8_t stream2,
uint8_t buffer2_scale,
uint32_t buffer2_size);
int seek_mpg_start(uint8_t *buf, int size);
void split_mpg(char *name, uint64_t size);
void cut_mpg(char *name, uint64_t size);
int http_open (char *url);
ssize_t save_read(int fd, void *buf, size_t count);
const char * strerrno(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /*_CTOOLS_H_*/
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