141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
/*
|
|
* dvb_demux.h: DVB kernel demux API
|
|
*
|
|
* Copyright (C) 2000-2001 Marcus Metzler & Ralph Metzler
|
|
* for convergence integrated media GmbH
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public License
|
|
* as published by the Free Software Foundation; either version 2.1
|
|
* 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 Lesser 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef _DVB_DEMUX_H_
|
|
#define _DVB_DEMUX_H_
|
|
|
|
#include <linux/time.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#include "demux.h"
|
|
|
|
#define DMX_TYPE_TS 0
|
|
#define DMX_TYPE_SEC 1
|
|
#define DMX_TYPE_PES 2
|
|
|
|
#define DMX_STATE_FREE 0
|
|
#define DMX_STATE_ALLOCATED 1
|
|
#define DMX_STATE_SET 2
|
|
#define DMX_STATE_READY 3
|
|
#define DMX_STATE_GO 4
|
|
|
|
#define DVB_DEMUX_MASK_MAX 18
|
|
|
|
struct dvb_demux_filter {
|
|
struct dmx_section_filter filter;
|
|
u8 maskandmode[DMX_MAX_FILTER_SIZE];
|
|
u8 maskandnotmode[DMX_MAX_FILTER_SIZE];
|
|
int doneq;
|
|
|
|
struct dvb_demux_filter *next;
|
|
struct dvb_demux_feed *feed;
|
|
int index;
|
|
int state;
|
|
int type;
|
|
|
|
u16 hw_handle;
|
|
struct timer_list timer;
|
|
};
|
|
|
|
#define DMX_FEED_ENTRY(pos) list_entry(pos, struct dvb_demux_feed, list_head)
|
|
|
|
struct dvb_demux_feed {
|
|
union {
|
|
struct dmx_ts_feed ts;
|
|
struct dmx_section_feed sec;
|
|
} feed;
|
|
|
|
union {
|
|
dmx_ts_cb ts;
|
|
dmx_section_cb sec;
|
|
} cb;
|
|
|
|
struct dvb_demux *demux;
|
|
void *priv;
|
|
int type;
|
|
int state;
|
|
u16 pid;
|
|
u8 *buffer;
|
|
int buffer_size;
|
|
|
|
struct timespec timeout;
|
|
struct dvb_demux_filter *filter;
|
|
|
|
int ts_type;
|
|
enum dmx_ts_pes pes_type;
|
|
|
|
int cc;
|
|
int pusi_seen; /* prevents feeding of garbage from previous section */
|
|
|
|
u16 peslen;
|
|
|
|
struct list_head list_head;
|
|
unsigned int index; /* a unique index for each feed (can be used as hardware pid filter index) */
|
|
};
|
|
|
|
struct dvb_demux {
|
|
struct dmx_demux dmx;
|
|
void *priv;
|
|
int filternum;
|
|
int feednum;
|
|
int (*start_feed)(struct dvb_demux_feed *feed);
|
|
int (*stop_feed)(struct dvb_demux_feed *feed);
|
|
int (*write_to_decoder)(struct dvb_demux_feed *feed,
|
|
const u8 *buf, size_t len);
|
|
u32 (*check_crc32)(struct dvb_demux_feed *feed,
|
|
const u8 *buf, size_t len);
|
|
void (*memcopy)(struct dvb_demux_feed *feed, u8 *dst,
|
|
const u8 *src, size_t len);
|
|
|
|
int users;
|
|
#define MAX_DVB_DEMUX_USERS 10
|
|
struct dvb_demux_filter *filter;
|
|
struct dvb_demux_feed *feed;
|
|
|
|
struct list_head frontend_list;
|
|
|
|
struct dvb_demux_feed *pesfilter[DMX_TS_PES_OTHER];
|
|
u16 pids[DMX_TS_PES_OTHER];
|
|
int playing;
|
|
int recording;
|
|
|
|
#define DMX_MAX_PID 0x2000
|
|
struct list_head feed_list;
|
|
u8 tsbuf[204];
|
|
int tsbufp;
|
|
|
|
struct mutex mutex;
|
|
spinlock_t lock;
|
|
};
|
|
|
|
int dvb_dmx_init(struct dvb_demux *dvbdemux);
|
|
void dvb_dmx_release(struct dvb_demux *dvbdemux);
|
|
void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf,
|
|
size_t count);
|
|
void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count);
|
|
void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf,
|
|
size_t count);
|
|
|
|
#endif /* _DVB_DEMUX_H_ */
|