233 lines
3.7 KiB
ReStructuredText
233 lines
3.7 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _dmx_types:
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****************
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Demux Data Types
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****************
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Output for the demux
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====================
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.. c:type:: dmx_output
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.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
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.. flat-table:: enum dmx_output
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:header-rows: 1
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:stub-columns: 0
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- .. row 1
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- ID
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- Description
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- .. row 2
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- .. _DMX-OUT-DECODER:
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DMX_OUT_DECODER
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- Streaming directly to decoder.
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- .. row 3
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- .. _DMX-OUT-TAP:
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DMX_OUT_TAP
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- Output going to a memory buffer (to be retrieved via the read
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command). Delivers the stream output to the demux device on which
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the ioctl is called.
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- .. row 4
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- .. _DMX-OUT-TS-TAP:
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DMX_OUT_TS_TAP
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- Output multiplexed into a new TS (to be retrieved by reading from
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the logical DVR device). Routes output to the logical DVR device
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``/dev/dvb/adapter?/dvr?``, which delivers a TS multiplexed from
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all filters for which ``DMX_OUT_TS_TAP`` was specified.
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- .. row 5
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- .. _DMX-OUT-TSDEMUX-TAP:
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DMX_OUT_TSDEMUX_TAP
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- Like :ref:`DMX_OUT_TS_TAP <DMX-OUT-TS-TAP>` but retrieved
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from the DMX device.
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dmx_input_t
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===========
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.. c:type:: dmx_input
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.. code-block:: c
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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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dmx_pes_type_t
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==============
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.. c:type:: dmx_pes_type
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.. code-block:: c
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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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struct dmx_filter
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=================
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.. c:type:: dmx_filter
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.. code-block:: c
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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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.. c:type:: dmx_sct_filter_params
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struct dmx_sct_filter_params
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============================
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.. code-block:: c
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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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.. c:type:: dmx_pes_filter_params
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.. code-block:: c
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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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struct dmx_event
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================
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.. c:type:: dmx_event
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.. code-block:: c
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struct dmx_event
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{
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dmx_event_t event;
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time_t timeStamp;
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union
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{
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dmx_scrambling_status_t scrambling;
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} u;
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};
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struct dmx_stc
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==============
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.. c:type:: dmx_stc
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.. code-block:: c
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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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struct dmx_caps
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===============
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.. c:type:: dmx_caps
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.. code-block:: c
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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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enum dmx_source
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===============
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.. c:type:: dmx_source
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.. code-block:: c
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typedef enum dmx_source {
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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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