--- /dev/null
+/*
+ * 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
+
+#define MAX_PID 0x1fff
+
+#define SPEED_PKTS_INTERVAL 50000
+
+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_PES_OTHER];
+ u16 pids[DMX_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;
+
+ uint8_t *cnt_storage; /* for TS continuity check */
+
+ struct timespec speed_last_time; /* for TS speed check */
+ uint32_t speed_pkts_cnt; /* for TS speed check */
+};
+
+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);
+void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf,
+ size_t count);
+
+#endif /* _DVB_DEMUX_H_ */
Code Review / kvmfornfv.git / blobdiff