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.. -*- coding: utf-8; mode: rst -*-
.. _dmx_types:
****************
Demux Data Types
****************
Output for the demux
====================
.. c:type:: dmx_output
.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
.. flat-table:: enum dmx_output
:header-rows: 1
:stub-columns: 0
- .. row 1
- ID
- Description
- .. row 2
- .. _DMX-OUT-DECODER:
DMX_OUT_DECODER
- Streaming directly to decoder.
- .. row 3
- .. _DMX-OUT-TAP:
DMX_OUT_TAP
- Output going to a memory buffer (to be retrieved via the read
command). Delivers the stream output to the demux device on which
the ioctl is called.
- .. row 4
- .. _DMX-OUT-TS-TAP:
DMX_OUT_TS_TAP
- Output multiplexed into a new TS (to be retrieved by reading from
the logical DVR device). Routes output to the logical DVR device
``/dev/dvb/adapter?/dvr?``, which delivers a TS multiplexed from
all filters for which ``DMX_OUT_TS_TAP`` was specified.
- .. row 5
- .. _DMX-OUT-TSDEMUX-TAP:
DMX_OUT_TSDEMUX_TAP
- Like :ref:`DMX_OUT_TS_TAP <DMX-OUT-TS-TAP>` but retrieved
from the DMX device.
dmx_input_t
===========
.. c:type:: dmx_input
.. code-block:: c
typedef enum
{
DMX_IN_FRONTEND, /* Input from a front-end device. */
DMX_IN_DVR /* Input from the logical DVR device. */
} dmx_input_t;
dmx_pes_type_t
==============
.. c:type:: dmx_pes_type
.. code-block:: c
typedef enum
{
DMX_PES_AUDIO0,
DMX_PES_VIDEO0,
DMX_PES_TELETEXT0,
DMX_PES_SUBTITLE0,
DMX_PES_PCR0,
DMX_PES_AUDIO1,
DMX_PES_VIDEO1,
DMX_PES_TELETEXT1,
DMX_PES_SUBTITLE1,
DMX_PES_PCR1,
DMX_PES_AUDIO2,
DMX_PES_VIDEO2,
DMX_PES_TELETEXT2,
DMX_PES_SUBTITLE2,
DMX_PES_PCR2,
DMX_PES_AUDIO3,
DMX_PES_VIDEO3,
DMX_PES_TELETEXT3,
DMX_PES_SUBTITLE3,
DMX_PES_PCR3,
DMX_PES_OTHER
} dmx_pes_type_t;
struct dmx_filter
=================
.. c:type:: dmx_filter
.. code-block:: c
typedef struct dmx_filter
{
__u8 filter[DMX_FILTER_SIZE];
__u8 mask[DMX_FILTER_SIZE];
__u8 mode[DMX_FILTER_SIZE];
} dmx_filter_t;
.. c:type:: dmx_sct_filter_params
struct dmx_sct_filter_params
============================
.. code-block:: c
struct dmx_sct_filter_params
{
__u16 pid;
dmx_filter_t filter;
__u32 timeout;
__u32 flags;
#define DMX_CHECK_CRC 1
#define DMX_ONESHOT 2
#define DMX_IMMEDIATE_START 4
#define DMX_KERNEL_CLIENT 0x8000
};
struct dmx_pes_filter_params
============================
.. c:type:: dmx_pes_filter_params
.. code-block:: c
struct dmx_pes_filter_params
{
__u16 pid;
dmx_input_t input;
dmx_output_t output;
dmx_pes_type_t pes_type;
__u32 flags;
};
struct dmx_event
================
.. c:type:: dmx_event
.. code-block:: c
struct dmx_event
{
dmx_event_t event;
time_t timeStamp;
union
{
dmx_scrambling_status_t scrambling;
} u;
};
struct dmx_stc
==============
.. c:type:: dmx_stc
.. code-block:: c
struct dmx_stc {
unsigned int num; /* input : which STC? 0..N */
unsigned int base; /* output: divisor for stc to get 90 kHz clock */
__u64 stc; /* output: stc in 'base'*90 kHz units */
};
struct dmx_caps
===============
.. c:type:: dmx_caps
.. code-block:: c
typedef struct dmx_caps {
__u32 caps;
int num_decoders;
} dmx_caps_t;
enum dmx_source
===============
.. c:type:: dmx_source
.. code-block:: c
typedef enum dmx_source {
DMX_SOURCE_FRONT0 = 0,
DMX_SOURCE_FRONT1,
DMX_SOURCE_FRONT2,
DMX_SOURCE_FRONT3,
DMX_SOURCE_DVR0 = 16,
DMX_SOURCE_DVR1,
DMX_SOURCE_DVR2,
DMX_SOURCE_DVR3
} dmx_source_t;
|
