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DMX_ADD_PID allows to add multiple PIDs to a transport stream filter previously set up with DMX_SET_PES_FILTER and output=DMX_OUT_TSDEMUX_TAP. DMX_REMOVE_PID is used to drop a PID from a filter. These ioctls are to be used by readers of /dev/dvb/adapterX/demuxY. They may be called at any time, i.e. before or after the first filter on the shared file descriptor was started. They make it possible to record multiple services without the need to de- or re-multiplex TS packets. To accomplish this, dmxdev_filter->feed.ts has been converted to a list of struct dmxdev_feeds, each containing a PID value and a pointer to a struct dmx_ts_feed. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
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* dmxdev.h
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*
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* Copyright (C) 2000 Ralph Metzler & Marcus Metzler
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* for convergence integrated media GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _DMXDEV_H_
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#define _DMXDEV_H_
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/kernel.h>
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#include <linux/timer.h>
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#include <linux/wait.h>
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#include <linux/fs.h>
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#include <linux/string.h>
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#include <linux/mutex.h>
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#include <linux/dvb/dmx.h>
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#include "dvbdev.h"
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#include "demux.h"
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#include "dvb_ringbuffer.h"
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enum dmxdev_type {
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DMXDEV_TYPE_NONE,
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DMXDEV_TYPE_SEC,
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DMXDEV_TYPE_PES,
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};
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enum dmxdev_state {
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DMXDEV_STATE_FREE,
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DMXDEV_STATE_ALLOCATED,
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DMXDEV_STATE_SET,
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DMXDEV_STATE_GO,
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DMXDEV_STATE_DONE,
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DMXDEV_STATE_TIMEDOUT
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};
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struct dmxdev_feed {
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u16 pid;
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struct dmx_ts_feed *ts;
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struct list_head next;
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};
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struct dmxdev_filter {
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union {
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struct dmx_section_filter *sec;
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} filter;
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union {
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/* list of TS and PES feeds (struct dmxdev_feed) */
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struct list_head ts;
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struct dmx_section_feed *sec;
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} feed;
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union {
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struct dmx_sct_filter_params sec;
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struct dmx_pes_filter_params pes;
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} params;
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enum dmxdev_type type;
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enum dmxdev_state state;
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struct dmxdev *dev;
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struct dvb_ringbuffer buffer;
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struct mutex mutex;
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/* only for sections */
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struct timer_list timer;
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int todo;
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u8 secheader[3];
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};
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struct dmxdev {
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struct dvb_device *dvbdev;
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struct dvb_device *dvr_dvbdev;
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struct dmxdev_filter *filter;
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struct dmx_demux *demux;
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int filternum;
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int capabilities;
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unsigned int exit:1;
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#define DMXDEV_CAP_DUPLEX 1
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struct dmx_frontend *dvr_orig_fe;
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struct dvb_ringbuffer dvr_buffer;
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#define DVR_BUFFER_SIZE (10*188*1024)
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struct mutex mutex;
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spinlock_t lock;
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};
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int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *);
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void dvb_dmxdev_release(struct dmxdev *dmxdev);
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#endif /* _DMXDEV_H_ */
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