/* * 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_ */