Documentation/linux_tv/dmx.h.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 file: dmx.h
   4 ===========
   5
   6 .. code-block:: c
   7
   8     /*
   9      * dmx.h
  10      *
  11      * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
  12      *                  & Ralph  Metzler <ralph@convergence.de>
  13      *                    for convergence integrated media GmbH
  14      *
  15      * This program is free software; you can redistribute it and/or
  16      * modify it under the terms of the GNU Lesser General Public License
  17      * as published by the Free Software Foundation; either version 2.1
  18      * of the License, or (at your option) any later version.
  19      *
  20      * This program is distributed in the hope that it will be useful,
  21      * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22      * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23      * GNU General Public License for more details.
  24      *
  25      * You should have received a copy of the GNU Lesser General Public License
  26      * along with this program; if not, write to the Free Software
  27      * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28      *
  29      */
  30
  31     #ifndef _UAPI_DVBDMX_H_
  32     #define _UAPI_DVBDMX_H_
  33
  34     #include <linux/types.h>
  35     #ifndef __KERNEL__
  36     #include <time.h>
  37     #endif
  38
  39
  40     #define DMX_FILTER_SIZE 16
  41
  42     enum dmx_output
  43     {
  44             DMX_OUT_DECODER, /* Streaming directly to decoder. */
  45             DMX_OUT_TAP,     /* Output going to a memory buffer */
  46                              /* (to be retrieved via the read command).*/
  47             DMX_OUT_TS_TAP,  /* Output multiplexed into a new TS  */
  48                              /* (to be retrieved by reading from the */
  49                              /* logical DVR device).                 */
  50             DMX_OUT_TSDEMUX_TAP /* Like TS_TAP but retrieved from the DMX device */
  51     };
  52
  53     typedef enum dmx_output dmx_output_t;
  54
  55     typedef enum dmx_input
  56     {
  57             DMX_IN_FRONTEND, /* Input from a front-end device.  */
  58             DMX_IN_DVR       /* Input from the logical DVR device.  */
  59     } dmx_input_t;
  60
  61
  62     typedef enum dmx_ts_pes
  63     {
  64             DMX_PES_AUDIO0,
  65             DMX_PES_VIDEO0,
  66             DMX_PES_TELETEXT0,
  67             DMX_PES_SUBTITLE0,
  68             DMX_PES_PCR0,
  69
  70             DMX_PES_AUDIO1,
  71             DMX_PES_VIDEO1,
  72             DMX_PES_TELETEXT1,
  73             DMX_PES_SUBTITLE1,
  74             DMX_PES_PCR1,
  75
  76             DMX_PES_AUDIO2,
  77             DMX_PES_VIDEO2,
  78             DMX_PES_TELETEXT2,
  79             DMX_PES_SUBTITLE2,
  80             DMX_PES_PCR2,
  81
  82             DMX_PES_AUDIO3,
  83             DMX_PES_VIDEO3,
  84             DMX_PES_TELETEXT3,
  85             DMX_PES_SUBTITLE3,
  86             DMX_PES_PCR3,
  87
  88             DMX_PES_OTHER
  89     } dmx_pes_type_t;
  90
  91     #define DMX_PES_AUDIO    DMX_PES_AUDIO0
  92     #define DMX_PES_VIDEO    DMX_PES_VIDEO0
  93     #define DMX_PES_TELETEXT DMX_PES_TELETEXT0
  94     #define DMX_PES_SUBTITLE DMX_PES_SUBTITLE0
  95     #define DMX_PES_PCR      DMX_PES_PCR0
  96
  97
  98     typedef struct dmx_filter
  99     {
 100             __u8  filter[DMX_FILTER_SIZE];
 101             __u8  mask[DMX_FILTER_SIZE];
 102             __u8  mode[DMX_FILTER_SIZE];
 103     } dmx_filter_t;
 104
 105
 106     struct dmx_sct_filter_params
 107     {
 108             __u16          pid;
 109             dmx_filter_t   filter;
 110             __u32          timeout;
 111             __u32          flags;
 112     #define DMX_CHECK_CRC       1
 113     #define DMX_ONESHOT         2
 114     #define DMX_IMMEDIATE_START 4
 115     #define DMX_KERNEL_CLIENT   0x8000
 116     };
 117
 118
 119     struct dmx_pes_filter_params
 120     {
 121             __u16          pid;
 122             dmx_input_t    input;
 123             dmx_output_t   output;
 124             dmx_pes_type_t pes_type;
 125             __u32          flags;
 126     };
 127
 128     typedef struct dmx_caps {
 129             __u32 caps;
 130             int num_decoders;
 131     } dmx_caps_t;
 132
 133     typedef enum dmx_source {
 134             DMX_SOURCE_FRONT0 = 0,
 135             DMX_SOURCE_FRONT1,
 136             DMX_SOURCE_FRONT2,
 137             DMX_SOURCE_FRONT3,
 138             DMX_SOURCE_DVR0   = 16,
 139             DMX_SOURCE_DVR1,
 140             DMX_SOURCE_DVR2,
 141             DMX_SOURCE_DVR3
 142     } dmx_source_t;
 143
 144     struct dmx_stc {
 145             unsigned int num;       /* input : which STC? 0..N */
 146             unsigned int base;      /* output: divisor for stc to get 90 kHz clock */
 147             __u64 stc;              /* output: stc in 'base'*90 kHz units */
 148     };
 149
 150     #define DMX_START                _IO('o', 41)
 151     #define DMX_STOP                 _IO('o', 42)
 152     #define DMX_SET_FILTER           _IOW('o', 43, struct dmx_sct_filter_params)
 153     #define DMX_SET_PES_FILTER       _IOW('o', 44, struct dmx_pes_filter_params)
 154     #define DMX_SET_BUFFER_SIZE      _IO('o', 45)
 155     #define DMX_GET_PES_PIDS         _IOR('o', 47, __u16[5])
 156     #define DMX_GET_CAPS             _IOR('o', 48, dmx_caps_t)
 157     #define DMX_SET_SOURCE           _IOW('o', 49, dmx_source_t)
 158     #define DMX_GET_STC              _IOWR('o', 50, struct dmx_stc)
 159     #define DMX_ADD_PID              _IOW('o', 51, __u16)
 160     #define DMX_REMOVE_PID           _IOW('o', 52, __u16)
 161
 162     #endif /* _UAPI_DVBDMX_H_ */