1cb662a314
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>
157 lines
3.9 KiB
C
157 lines
3.9 KiB
C
/*
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* dmx.h
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*
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* Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
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* & Ralph Metzler <ralph@convergence.de>
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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 _DVBDMX_H_
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#define _DVBDMX_H_
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#include <linux/types.h>
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#ifdef __KERNEL__
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#include <linux/time.h>
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#else
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#include <time.h>
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#endif
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#define DMX_FILTER_SIZE 16
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typedef enum
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{
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DMX_OUT_DECODER, /* Streaming directly to decoder. */
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DMX_OUT_TAP, /* Output going to a memory buffer */
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/* (to be retrieved via the read command).*/
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DMX_OUT_TS_TAP, /* Output multiplexed into a new TS */
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/* (to be retrieved by reading from the */
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/* logical DVR device). */
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DMX_OUT_TSDEMUX_TAP /* Like TS_TAP but retrieved from the DMX device */
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} dmx_output_t;
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typedef enum
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{
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DMX_IN_FRONTEND, /* Input from a front-end device. */
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DMX_IN_DVR /* Input from the logical DVR device. */
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} dmx_input_t;
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typedef enum
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{
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DMX_PES_AUDIO0,
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DMX_PES_VIDEO0,
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DMX_PES_TELETEXT0,
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DMX_PES_SUBTITLE0,
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DMX_PES_PCR0,
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DMX_PES_AUDIO1,
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DMX_PES_VIDEO1,
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DMX_PES_TELETEXT1,
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DMX_PES_SUBTITLE1,
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DMX_PES_PCR1,
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DMX_PES_AUDIO2,
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DMX_PES_VIDEO2,
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DMX_PES_TELETEXT2,
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DMX_PES_SUBTITLE2,
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DMX_PES_PCR2,
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DMX_PES_AUDIO3,
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DMX_PES_VIDEO3,
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DMX_PES_TELETEXT3,
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DMX_PES_SUBTITLE3,
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DMX_PES_PCR3,
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DMX_PES_OTHER
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} dmx_pes_type_t;
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#define DMX_PES_AUDIO DMX_PES_AUDIO0
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#define DMX_PES_VIDEO DMX_PES_VIDEO0
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#define DMX_PES_TELETEXT DMX_PES_TELETEXT0
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#define DMX_PES_SUBTITLE DMX_PES_SUBTITLE0
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#define DMX_PES_PCR DMX_PES_PCR0
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typedef struct dmx_filter
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{
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__u8 filter[DMX_FILTER_SIZE];
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__u8 mask[DMX_FILTER_SIZE];
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__u8 mode[DMX_FILTER_SIZE];
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} dmx_filter_t;
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struct dmx_sct_filter_params
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{
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__u16 pid;
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dmx_filter_t filter;
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__u32 timeout;
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__u32 flags;
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#define DMX_CHECK_CRC 1
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#define DMX_ONESHOT 2
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#define DMX_IMMEDIATE_START 4
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#define DMX_KERNEL_CLIENT 0x8000
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};
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struct dmx_pes_filter_params
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{
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__u16 pid;
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dmx_input_t input;
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dmx_output_t output;
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dmx_pes_type_t pes_type;
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__u32 flags;
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};
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typedef struct dmx_caps {
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__u32 caps;
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int num_decoders;
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} dmx_caps_t;
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typedef enum {
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DMX_SOURCE_FRONT0 = 0,
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DMX_SOURCE_FRONT1,
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DMX_SOURCE_FRONT2,
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DMX_SOURCE_FRONT3,
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DMX_SOURCE_DVR0 = 16,
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DMX_SOURCE_DVR1,
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DMX_SOURCE_DVR2,
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DMX_SOURCE_DVR3
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} dmx_source_t;
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struct dmx_stc {
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unsigned int num; /* input : which STC? 0..N */
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unsigned int base; /* output: divisor for stc to get 90 kHz clock */
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__u64 stc; /* output: stc in 'base'*90 kHz units */
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};
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#define DMX_START _IO('o', 41)
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#define DMX_STOP _IO('o', 42)
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#define DMX_SET_FILTER _IOW('o', 43, struct dmx_sct_filter_params)
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#define DMX_SET_PES_FILTER _IOW('o', 44, struct dmx_pes_filter_params)
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#define DMX_SET_BUFFER_SIZE _IO('o', 45)
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#define DMX_GET_PES_PIDS _IOR('o', 47, __u16[5])
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#define DMX_GET_CAPS _IOR('o', 48, dmx_caps_t)
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#define DMX_SET_SOURCE _IOW('o', 49, dmx_source_t)
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#define DMX_GET_STC _IOWR('o', 50, struct dmx_stc)
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#define DMX_ADD_PID _IOW('o', 51, __u16)
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#define DMX_REMOVE_PID _IOW('o', 52, __u16)
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#endif /*_DVBDMX_H_*/
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