Digital TV property parameters
******************************
+There are several different Digital TV parameters that can be used by
+:ref:`FE_SET_PROPERTY and FE_GET_PROPERTY ioctls<FE_GET_PROPERTY>`.
+This section describes each of them. Please notice, however, that only
+a subset of them are needed to setup a frontend.
+
.. _DTV-UNDEFINED:
==============
Specifies the frontend modulation type for delivery systems that
-supports more than one modulation type. The modulation can be one of the
-types defined by enum :c:type:`fe_modulation`.
-
+supports more multiple modulations.
+
+The modulation can be one of the types defined by enum :c:type:`fe_modulation`.
+
+Most of the digital TV standards offers more than one possible
+modulation type.
+
+The table below presents a summary of the types of modulation types
+supported by each delivery system, as currently defined by specs.
+
+======================= =======================================================
+Standard Modulation types
+======================= =======================================================
+ATSC (version 1) 8-VSB and 16-VSB.
+DMTB 4-QAM, 16-QAM, 32-QAM, 64-QAM and 4-QAM-NR.
+DVB-C Annex A/C 16-QAM, 32-QAM, 64-QAM and 256-QAM.
+DVB-C Annex B 64-QAM.
+DVB-T QPSK, 16-QAM and 64-QAM.
+DVB-T2 QPSK, 16-QAM, 64-QAM and 256-QAM.
+DVB-S No need to set. It supports only QPSK.
+DVB-S2 QPSK, 8-PSK, 16-APSK and 32-APSK.
+ISDB-T QPSK, DQPSK, 16-QAM and 64-QAM.
+ISDB-S 8-PSK, QPSK and BPSK.
+======================= =======================================================
-.. c:type:: fe_modulation
+.. note::
-Modulation property
--------------------
+ Please notice that some of the above modulation types may not be
+ defined currently at the Kernel. The reason is simple: no driver
+ needed such definition yet.
-Most of the digital TV standards currently offers more than one possible
-modulation (sometimes called as "constellation" on some standards). This
-enum contains the values used by the Kernel. Please note that not all
-modulations are supported by a given standard.
+.. _DTV-BANDWIDTH-HZ:
-.. flat-table:: enum fe_modulation
- :header-rows: 1
- :stub-columns: 0
+DTV_BANDWIDTH_HZ
+================
+Bandwidth for the channel, in HZ.
- - .. row 1
+Should be set only for terrestrial delivery systems.
- - ID
+Possible values: ``1712000``, ``5000000``, ``6000000``, ``7000000``,
+``8000000``, ``10000000``.
- - Description
+======================= =======================================================
+Terrestrial Standard Possible values for bandwidth
+======================= =======================================================
+ATSC (version 1) No need to set. It is always 6MHz.
+DMTB No need to set. It is always 8MHz.
+DVB-T 6MHz, 7MHz and 8MHz.
+DVB-T2 1.172 MHz, 5MHz, 6MHz, 7MHz, 8MHz and 10MHz
+ISDB-T 5MHz, 6MHz, 7MHz and 8MHz, although most places
+ use 6MHz.
+======================= =======================================================
- - .. row 2
- - .. _QPSK:
+.. note::
- ``QPSK``
- - QPSK modulation
+ #. For ISDB-Tsb, the bandwidth can vary depending on the number of
+ connected segments.
- - .. row 3
+ It can be easily derived from other parameters
+ (DTV_ISDBT_SB_SEGMENT_IDX, DTV_ISDBT_SB_SEGMENT_COUNT).
- - .. _QAM-16:
+ #. On Satellite and Cable delivery systems, the bandwidth depends on
+ the symbol rate. So, the Kernel will silently ignore any setting
+ :ref:`DTV-BANDWIDTH-HZ`. I will however fill it back with a
+ bandwidth estimation.
- ``QAM_16``
+ Such bandwidth estimation takes into account the symbol rate set with
+ :ref:`DTV-SYMBOL-RATE`, and the rolloff factor, with is fixed for
+ DVB-C and DVB-S.
- - 16-QAM modulation
+ For DVB-S2, the rolloff should also be set via :ref:`DTV-ROLLOFF`.
- - .. row 4
- - .. _QAM-32:
+.. _DTV-INVERSION:
- ``QAM_32``
+DTV_INVERSION
+=============
- - 32-QAM modulation
+Specifies if the frontend should do spectral inversion or not.
- - .. row 5
+The acceptable values are defined by :c:type:`fe_spectral_inversion`.
- - .. _QAM-64:
- ``QAM_64``
+.. _DTV-DISEQC-MASTER:
- - 64-QAM modulation
+DTV_DISEQC_MASTER
+=================
- - .. row 6
+Currently not implemented.
- - .. _QAM-128:
- ``QAM_128``
+.. _DTV-SYMBOL-RATE:
- - 128-QAM modulation
+DTV_SYMBOL_RATE
+===============
- - .. row 7
+Used on cable and satellite delivery systems.
- - .. _QAM-256:
+Digital TV symbol rate, in bauds (symbols/second).
- ``QAM_256``
- - 256-QAM modulation
+.. _DTV-INNER-FEC:
- - .. row 8
+DTV_INNER_FEC
+=============
- - .. _QAM-AUTO:
+Used on cable and satellite delivery systems.
- ``QAM_AUTO``
+The acceptable values are defined by :c:type:`fe_code_rate`.
- - Autodetect QAM modulation
- - .. row 9
+.. _DTV-VOLTAGE:
- - .. _VSB-8:
+DTV_VOLTAGE
+===========
- ``VSB_8``
+Used on satellite delivery systems.
- - 8-VSB modulation
+The voltage is usually used with non-DiSEqC capable LNBs to switch the
+polarzation (horizontal/vertical). When using DiSEqC epuipment this
+voltage has to be switched consistently to the DiSEqC commands as
+described in the DiSEqC spec.
- - .. row 10
+The acceptable values are defined by :c:type:`fe_sec_voltage`.
- - .. _VSB-16:
- ``VSB_16``
+.. _DTV-TONE:
- - 16-VSB modulation
+DTV_TONE
+========
- - .. row 11
+Currently not used.
- - .. _PSK-8:
- ``PSK_8``
+.. _DTV-PILOT:
- - 8-PSK modulation
+DTV_PILOT
+=========
- - .. row 12
+Used on DVB-S2.
- - .. _APSK-16:
+Sets DVB-S2 pilot.
- ``APSK_16``
+The acceptable values are defined by :c:type:`fe_pilot`.
- - 16-APSK modulation
- - .. row 13
+.. _DTV-ROLLOFF:
- - .. _APSK-32:
+DTV_ROLLOFF
+===========
- ``APSK_32``
+Used on DVB-S2.
- - 32-APSK modulation
+Sets DVB-S2 rolloff.
- - .. row 14
+The acceptable values are defined by :c:type:`fe_rolloff`.
- - .. _DQPSK:
- ``DQPSK``
+.. _DTV-DISEQC-SLAVE-REPLY:
- - DQPSK modulation
+DTV_DISEQC_SLAVE_REPLY
+======================
- - .. row 15
+Currently not implemented.
- - .. _QAM-4-NR:
- ``QAM_4_NR``
+.. _DTV-FE-CAPABILITY-COUNT:
- - 4-QAM-NR modulation
+DTV_FE_CAPABILITY_COUNT
+=======================
+Currently not implemented.
-.. _DTV-BANDWIDTH-HZ:
+.. _DTV-FE-CAPABILITY:
-DTV_BANDWIDTH_HZ
-================
+DTV_FE_CAPABILITY
+=================
-Bandwidth for the channel, in HZ.
+Currently not implemented.
-Possible values: ``1712000``, ``5000000``, ``6000000``, ``7000000``,
-``8000000``, ``10000000``.
-.. note::
+.. _DTV-DELIVERY-SYSTEM:
- #. DVB-T supports 6, 7 and 8MHz.
+DTV_DELIVERY_SYSTEM
+===================
- #. DVB-T2 supports 1.172, 5, 6, 7, 8 and 10MHz.
+Specifies the type of the delivery system.
- #. ISDB-T supports 5MHz, 6MHz, 7MHz and 8MHz, although most
- places use 6MHz.
+The acceptable values are defined by :c:type:`fe_delivery_system`.
- #. On DVB-C and DVB-S/S2, the bandwidth depends on the symbol rate.
- So, the Kernel will silently ignore setting :ref:`DTV-BANDWIDTH-HZ`.
- #. For DVB-C and DVB-S/S2, the Kernel will return an estimation of the
- bandwidth, calculated from :ref:`DTV-SYMBOL-RATE` and from
- the rolloff, with is fixed for DVB-C and DVB-S.
+.. _DTV-ISDBT-PARTIAL-RECEPTION:
- #. For DVB-S2, the bandwidth estimation will use :ref:`DTV-ROLLOFF`.
+DTV_ISDBT_PARTIAL_RECEPTION
+===========================
- #. For ISDB-Tsb, it can vary depending on the number of connected
- segments.
+Used only on ISDB.
- #. Bandwidth in ISDB-Tsb can be easily derived from other parameters
- (DTV_ISDBT_SB_SEGMENT_IDX, DTV_ISDBT_SB_SEGMENT_COUNT).
+If ``DTV_ISDBT_SOUND_BROADCASTING`` is '0' this bit-field represents
+whether the channel is in partial reception mode or not.
+If '1' ``DTV_ISDBT_LAYERA_*`` values are assigned to the center segment
+and ``DTV_ISDBT_LAYERA_SEGMENT_COUNT`` has to be '1'.
-.. _DTV-INVERSION:
+If in addition ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'
+``DTV_ISDBT_PARTIAL_RECEPTION`` represents whether this ISDB-Tsb channel
+is consisting of one segment and layer or three segments and two layers.
-DTV_INVERSION
-=============
+Possible values: 0, 1, -1 (AUTO)
-Specifies if the frontend should do spectral inversion or not.
-.. c:type:: fe_spectral_inversion
+.. _DTV-ISDBT-SOUND-BROADCASTING:
-enum fe_modulation: Frontend spectral inversion
------------------------------------------------
+DTV_ISDBT_SOUND_BROADCASTING
+============================
-This parameter indicates if spectral inversion should be presumed or
-not. In the automatic setting (``INVERSION_AUTO``) the hardware will try
-to figure out the correct setting by itself. If the hardware doesn't
-support, the DVB core will try to lock at the carrier first with
-inversion off. If it fails, it will try to enable inversion.
+Used only on ISDB.
+This field represents whether the other DTV_ISDBT_*-parameters are
+referring to an ISDB-T and an ISDB-Tsb channel. (See also
+``DTV_ISDBT_PARTIAL_RECEPTION``).
-.. flat-table:: enum fe_modulation
- :header-rows: 1
- :stub-columns: 0
+Possible values: 0, 1, -1 (AUTO)
- - .. row 1
+.. _DTV-ISDBT-SB-SUBCHANNEL-ID:
- - ID
+DTV_ISDBT_SB_SUBCHANNEL_ID
+==========================
- - Description
+Used only on ISDB.
- - .. row 2
+This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
- - .. _INVERSION-OFF:
+(Note of the author: This might not be the correct description of the
+``SUBCHANNEL-ID`` in all details, but it is my understanding of the
+technical background needed to program a device)
- ``INVERSION_OFF``
+An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a
+set of connected ISDB-Tsb channels. In this set of channels every
+channel can be received independently. The number of connected ISDB-Tsb
+segment can vary, e.g. depending on the frequency spectrum bandwidth
+available.
- - Don't do spectral band inversion.
+Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The
+broadcaster has several possibilities to put those channels in the air:
+Assuming a normal 13-segment ISDB-T spectrum he can align the 8 segments
+from position 1-8 to 5-13 or anything in between.
- - .. row 3
+The underlying layer of segments are subchannels: each segment is
+consisting of several subchannels with a predefined IDs. A sub-channel
+is used to help the demodulator to synchronize on the channel.
- - .. _INVERSION-ON:
+An ISDB-T channel is always centered over all sub-channels. As for the
+example above, in ISDB-Tsb it is no longer as simple as that.
- ``INVERSION_ON``
+``The DTV_ISDBT_SB_SUBCHANNEL_ID`` parameter is used to give the
+sub-channel ID of the segment to be demodulated.
- - Do spectral band inversion.
+Possible values: 0 .. 41, -1 (AUTO)
- - .. row 4
- - .. _INVERSION-AUTO:
+.. _DTV-ISDBT-SB-SEGMENT-IDX:
- ``INVERSION_AUTO``
+DTV_ISDBT_SB_SEGMENT_IDX
+========================
- - Autodetect spectral band inversion.
+Used only on ISDB.
+This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
+``DTV_ISDBT_SB_SEGMENT_IDX`` gives the index of the segment to be
+demodulated for an ISDB-Tsb channel where several of them are
+transmitted in the connected manner.
-.. _DTV-DISEQC-MASTER:
+Possible values: 0 .. ``DTV_ISDBT_SB_SEGMENT_COUNT`` - 1
-DTV_DISEQC_MASTER
-=================
+Note: This value cannot be determined by an automatic channel search.
-Currently not implemented.
+.. _DTV-ISDBT-SB-SEGMENT-COUNT:
-.. _DTV-SYMBOL-RATE:
+DTV_ISDBT_SB_SEGMENT_COUNT
+==========================
-DTV_SYMBOL_RATE
-===============
+Used only on ISDB.
-Digital TV symbol rate, in bauds (symbols/second). Used on cable
-standards.
+This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
+``DTV_ISDBT_SB_SEGMENT_COUNT`` gives the total count of connected
+ISDB-Tsb channels.
-.. _DTV-INNER-FEC:
+Possible values: 1 .. 13
-DTV_INNER_FEC
-=============
+Note: This value cannot be determined by an automatic channel search.
-Used cable/satellite transmissions. The acceptable values are:
-.. c:type:: fe_code_rate
+.. _isdb-hierq-layers:
-enum fe_code_rate: type of the Forward Error Correction.
---------------------------------------------------------
+DTV-ISDBT-LAYER[A-C] parameters
+===============================
-.. flat-table:: enum fe_code_rate
- :header-rows: 1
- :stub-columns: 0
+Used only on ISDB.
+ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
+ISDB-T hierarchical layers can be decoded simultaneously. For that
+reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders.
- - .. row 1
+ISDB-T has 3 hierarchical layers which each can use a part of the
+available segments. The total number of segments over all layers has to
+13 in ISDB-T.
- - ID
+There are 3 parameter sets, for Layers A, B and C.
- - Description
- - .. row 2
+.. _DTV-ISDBT-LAYER-ENABLED:
- - .. _FEC-NONE:
+DTV_ISDBT_LAYER_ENABLED
+-----------------------
- ``FEC_NONE``
+Used only on ISDB.
- - No Forward Error Correction Code
+Hierarchical reception in ISDB-T is achieved by enabling or disabling
+layers in the decoding process. Setting all bits of
+``DTV_ISDBT_LAYER_ENABLED`` to '1' forces all layers (if applicable) to
+be demodulated. This is the default.
- - .. row 3
+If the channel is in the partial reception mode
+(``DTV_ISDBT_PARTIAL_RECEPTION`` = 1) the central segment can be decoded
+independently of the other 12 segments. In that mode layer A has to have
+a ``SEGMENT_COUNT`` of 1.
- - .. _FEC-AUTO:
+In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb according
+to ``DTV_ISDBT_PARTIAL_RECEPTION``. ``SEGMENT_COUNT`` must be filled
+accordingly.
- ``FEC_AUTO``
+Only the values of the first 3 bits are used. Other bits will be silently ignored:
- - Autodetect Error Correction Code
+``DTV_ISDBT_LAYER_ENABLED`` bit 0: layer A enabled
- - .. row 4
+``DTV_ISDBT_LAYER_ENABLED`` bit 1: layer B enabled
- - .. _FEC-1-2:
+``DTV_ISDBT_LAYER_ENABLED`` bit 2: layer C enabled
- ``FEC_1_2``
+``DTV_ISDBT_LAYER_ENABLED`` bits 3-31: unused
- - Forward Error Correction Code 1/2
- - .. row 5
+.. _DTV-ISDBT-LAYER-FEC:
- - .. _FEC-2-3:
+DTV_ISDBT_LAYER[A-C]_FEC
+------------------------
- ``FEC_2_3``
+Used only on ISDB.
- - Forward Error Correction Code 2/3
+The Forward Error Correction mechanism used by a given ISDB Layer, as
+defined by :c:type:`fe_code_rate`.
- - .. row 6
- - .. _FEC-3-4:
+Possible values are: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``,
+``FEC_5_6``, ``FEC_7_8``
- ``FEC_3_4``
- - Forward Error Correction Code 3/4
+.. _DTV-ISDBT-LAYER-MODULATION:
- - .. row 7
+DTV_ISDBT_LAYER[A-C]_MODULATION
+-------------------------------
- - .. _FEC-4-5:
+Used only on ISDB.
- ``FEC_4_5``
+The modulation used by a given ISDB Layer, as defined by
+:c:type:`fe_modulation`.
- - Forward Error Correction Code 4/5
+Possible values are: ``QAM_AUTO``, ``QPSK``, ``QAM_16``, ``QAM_64``, ``DQPSK``
- - .. row 8
+.. note::
- - .. _FEC-5-6:
+ #. If layer C is ``DQPSK``, then layer B has to be ``DQPSK``.
- ``FEC_5_6``
+ #. If layer B is ``DQPSK`` and ``DTV_ISDBT_PARTIAL_RECEPTION``\ = 0,
+ then layer has to be ``DQPSK``.
- - Forward Error Correction Code 5/6
- - .. row 9
+.. _DTV-ISDBT-LAYER-SEGMENT-COUNT:
- - .. _FEC-6-7:
+DTV_ISDBT_LAYER[A-C]_SEGMENT_COUNT
+----------------------------------
- ``FEC_6_7``
+Used only on ISDB.
- - Forward Error Correction Code 6/7
+Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)
- - .. row 10
+Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and
+``DTV_ISDBT_PARTIAL_RECEPTION`` and ``LAYER[A-C]_SEGMENT_COUNT``
- - .. _FEC-7-8:
+.. _isdbt-layer_seg-cnt-table:
- ``FEC_7_8``
+.. flat-table:: Truth table for ISDB-T Sound Broadcasting
+ :header-rows: 1
+ :stub-columns: 0
- - Forward Error Correction Code 7/8
- - .. row 11
+ - .. row 1
- - .. _FEC-8-9:
+ - Partial Reception
- ``FEC_8_9``
+ - Sound Broadcasting
- - Forward Error Correction Code 8/9
+ - Layer A width
- - .. row 12
+ - Layer B width
- - .. _FEC-9-10:
+ - Layer C width
- ``FEC_9_10``
+ - total width
- - Forward Error Correction Code 9/10
+ - .. row 2
- - .. row 13
+ - 0
- - .. _FEC-2-5:
+ - 0
- ``FEC_2_5``
+ - 1 .. 13
- - Forward Error Correction Code 2/5
+ - 1 .. 13
- - .. row 14
+ - 1 .. 13
- - .. _FEC-3-5:
+ - 13
- ``FEC_3_5``
+ - .. row 3
- - Forward Error Correction Code 3/5
+ - 1
+ - 0
+ - 1
-.. _DTV-VOLTAGE:
+ - 1 .. 13
-DTV_VOLTAGE
-===========
+ - 1 .. 13
-The voltage is usually used with non-DiSEqC capable LNBs to switch the
-polarzation (horizontal/vertical). When using DiSEqC epuipment this
-voltage has to be switched consistently to the DiSEqC commands as
-described in the DiSEqC spec.
+ - 13
+ - .. row 4
-.. c:type:: fe_sec_voltage
+ - 0
-.. flat-table:: enum fe_sec_voltage
- :header-rows: 1
- :stub-columns: 0
+ - 1
+ - 1
- - .. row 1
+ - 0
- - ID
+ - 0
- - Description
+ - 1
- - .. row 2
+ - .. row 5
- - .. _SEC-VOLTAGE-13:
+ - 1
- ``SEC_VOLTAGE_13``
+ - 1
- - Set DC voltage level to 13V
+ - 1
- - .. row 3
+ - 2
- - .. _SEC-VOLTAGE-18:
+ - 0
- ``SEC_VOLTAGE_18``
+ - 13
- - Set DC voltage level to 18V
- - .. row 4
- - .. _SEC-VOLTAGE-OFF:
+.. _DTV-ISDBT-LAYER-TIME-INTERLEAVING:
- ``SEC_VOLTAGE_OFF``
+DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING
+--------------------------------------
- - Don't send any voltage to the antenna
+Used only on ISDB.
+Valid values: 0, 1, 2, 4, -1 (AUTO)
+when DTV_ISDBT_SOUND_BROADCASTING is active, value 8 is also valid.
-.. _DTV-TONE:
-
-DTV_TONE
-========
-
-Currently not used.
-
-
-.. _DTV-PILOT:
-
-DTV_PILOT
-=========
-
-Sets DVB-S2 pilot
-
-
-.. c:type:: fe_pilot
-
-fe_pilot type
--------------
-
-
-.. flat-table:: enum fe_pilot
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _PILOT-ON:
-
- ``PILOT_ON``
-
- - Pilot tones enabled
-
- - .. row 3
-
- - .. _PILOT-OFF:
-
- ``PILOT_OFF``
-
- - Pilot tones disabled
-
- - .. row 4
-
- - .. _PILOT-AUTO:
-
- ``PILOT_AUTO``
-
- - Autodetect pilot tones
-
-
-
-.. _DTV-ROLLOFF:
-
-DTV_ROLLOFF
-===========
-
-Sets DVB-S2 rolloff
-
-
-.. c:type:: fe_rolloff
-
-fe_rolloff type
----------------
-
-
-.. flat-table:: enum fe_rolloff
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ROLLOFF-35:
-
- ``ROLLOFF_35``
-
- - Roloff factor: α=35%
-
- - .. row 3
-
- - .. _ROLLOFF-20:
-
- ``ROLLOFF_20``
-
- - Roloff factor: α=20%
-
- - .. row 4
-
- - .. _ROLLOFF-25:
-
- ``ROLLOFF_25``
-
- - Roloff factor: α=25%
-
- - .. row 5
-
- - .. _ROLLOFF-AUTO:
-
- ``ROLLOFF_AUTO``
-
- - Auto-detect the roloff factor.
-
-
-
-.. _DTV-DISEQC-SLAVE-REPLY:
-
-DTV_DISEQC_SLAVE_REPLY
-======================
-
-Currently not implemented.
-
-
-.. _DTV-FE-CAPABILITY-COUNT:
-
-DTV_FE_CAPABILITY_COUNT
-=======================
-
-Currently not implemented.
-
-
-.. _DTV-FE-CAPABILITY:
-
-DTV_FE_CAPABILITY
-=================
-
-Currently not implemented.
-
-
-.. _DTV-DELIVERY-SYSTEM:
-
-DTV_DELIVERY_SYSTEM
-===================
-
-Specifies the type of Delivery system
-
-
-.. c:type:: fe_delivery_system
-
-fe_delivery_system type
------------------------
-
-Possible values:
-
-
-.. flat-table:: enum fe_delivery_system
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _SYS-UNDEFINED:
-
- ``SYS_UNDEFINED``
-
- - Undefined standard. Generally, indicates an error
-
- - .. row 3
-
- - .. _SYS-DVBC-ANNEX-A:
-
- ``SYS_DVBC_ANNEX_A``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex A spec
-
- - .. row 4
-
- - .. _SYS-DVBC-ANNEX-B:
-
- ``SYS_DVBC_ANNEX_B``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex B spec (ClearQAM)
-
- - .. row 5
-
- - .. _SYS-DVBC-ANNEX-C:
-
- ``SYS_DVBC_ANNEX_C``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex C spec
-
- - .. row 6
-
- - .. _SYS-ISDBC:
-
- ``SYS_ISDBC``
-
- - Cable TV: ISDB-C (no drivers yet)
-
- - .. row 7
-
- - .. _SYS-DVBT:
-
- ``SYS_DVBT``
-
- - Terrestral TV: DVB-T
-
- - .. row 8
-
- - .. _SYS-DVBT2:
-
- ``SYS_DVBT2``
-
- - Terrestral TV: DVB-T2
-
- - .. row 9
-
- - .. _SYS-ISDBT:
-
- ``SYS_ISDBT``
-
- - Terrestral TV: ISDB-T
-
- - .. row 10
-
- - .. _SYS-ATSC:
-
- ``SYS_ATSC``
-
- - Terrestral TV: ATSC
-
- - .. row 11
-
- - .. _SYS-ATSCMH:
-
- ``SYS_ATSCMH``
-
- - Terrestral TV (mobile): ATSC-M/H
-
- - .. row 12
-
- - .. _SYS-DTMB:
-
- ``SYS_DTMB``
-
- - Terrestrial TV: DTMB
-
- - .. row 13
-
- - .. _SYS-DVBS:
-
- ``SYS_DVBS``
-
- - Satellite TV: DVB-S
-
- - .. row 14
-
- - .. _SYS-DVBS2:
-
- ``SYS_DVBS2``
-
- - Satellite TV: DVB-S2
-
- - .. row 15
-
- - .. _SYS-TURBO:
-
- ``SYS_TURBO``
-
- - Satellite TV: DVB-S Turbo
-
- - .. row 16
-
- - .. _SYS-ISDBS:
-
- ``SYS_ISDBS``
-
- - Satellite TV: ISDB-S
-
- - .. row 17
-
- - .. _SYS-DAB:
-
- ``SYS_DAB``
-
- - Digital audio: DAB (not fully supported)
-
- - .. row 18
-
- - .. _SYS-DSS:
-
- ``SYS_DSS``
-
- - Satellite TV:"DSS (not fully supported)
-
- - .. row 19
-
- - .. _SYS-CMMB:
-
- ``SYS_CMMB``
-
- - Terrestral TV (mobile):CMMB (not fully supported)
-
- - .. row 20
-
- - .. _SYS-DVBH:
-
- ``SYS_DVBH``
-
- - Terrestral TV (mobile): DVB-H (standard deprecated)
-
-
-
-.. _DTV-ISDBT-PARTIAL-RECEPTION:
-
-DTV_ISDBT_PARTIAL_RECEPTION
-===========================
-
-If ``DTV_ISDBT_SOUND_BROADCASTING`` is '0' this bit-field represents
-whether the channel is in partial reception mode or not.
-
-If '1' ``DTV_ISDBT_LAYERA_*`` values are assigned to the center segment
-and ``DTV_ISDBT_LAYERA_SEGMENT_COUNT`` has to be '1'.
-
-If in addition ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'
-``DTV_ISDBT_PARTIAL_RECEPTION`` represents whether this ISDB-Tsb channel
-is consisting of one segment and layer or three segments and two layers.
-
-Possible values: 0, 1, -1 (AUTO)
-
-
-.. _DTV-ISDBT-SOUND-BROADCASTING:
-
-DTV_ISDBT_SOUND_BROADCASTING
-============================
-
-This field represents whether the other DTV_ISDBT_*-parameters are
-referring to an ISDB-T and an ISDB-Tsb channel. (See also
-``DTV_ISDBT_PARTIAL_RECEPTION``).
-
-Possible values: 0, 1, -1 (AUTO)
-
-
-.. _DTV-ISDBT-SB-SUBCHANNEL-ID:
-
-DTV_ISDBT_SB_SUBCHANNEL_ID
-==========================
-
-This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
-
-(Note of the author: This might not be the correct description of the
-``SUBCHANNEL-ID`` in all details, but it is my understanding of the
-technical background needed to program a device)
-
-An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a
-set of connected ISDB-Tsb channels. In this set of channels every
-channel can be received independently. The number of connected ISDB-Tsb
-segment can vary, e.g. depending on the frequency spectrum bandwidth
-available.
-
-Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The
-broadcaster has several possibilities to put those channels in the air:
-Assuming a normal 13-segment ISDB-T spectrum he can align the 8 segments
-from position 1-8 to 5-13 or anything in between.
-
-The underlying layer of segments are subchannels: each segment is
-consisting of several subchannels with a predefined IDs. A sub-channel
-is used to help the demodulator to synchronize on the channel.
-
-An ISDB-T channel is always centered over all sub-channels. As for the
-example above, in ISDB-Tsb it is no longer as simple as that.
-
-``The DTV_ISDBT_SB_SUBCHANNEL_ID`` parameter is used to give the
-sub-channel ID of the segment to be demodulated.
-
-Possible values: 0 .. 41, -1 (AUTO)
-
-
-.. _DTV-ISDBT-SB-SEGMENT-IDX:
-
-DTV_ISDBT_SB_SEGMENT_IDX
-========================
-
-This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
-
-``DTV_ISDBT_SB_SEGMENT_IDX`` gives the index of the segment to be
-demodulated for an ISDB-Tsb channel where several of them are
-transmitted in the connected manner.
-
-Possible values: 0 .. ``DTV_ISDBT_SB_SEGMENT_COUNT`` - 1
-
-Note: This value cannot be determined by an automatic channel search.
-
-
-.. _DTV-ISDBT-SB-SEGMENT-COUNT:
-
-DTV_ISDBT_SB_SEGMENT_COUNT
-==========================
-
-This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
-
-``DTV_ISDBT_SB_SEGMENT_COUNT`` gives the total count of connected
-ISDB-Tsb channels.
-
-Possible values: 1 .. 13
-
-Note: This value cannot be determined by an automatic channel search.
-
-
-.. _isdb-hierq-layers:
-
-DTV-ISDBT-LAYER[A-C] parameters
-===============================
-
-ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
-ISDB-T hierarchical layers can be decoded simultaneously. For that
-reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders.
-
-ISDB-T has 3 hierarchical layers which each can use a part of the
-available segments. The total number of segments over all layers has to
-13 in ISDB-T.
-
-There are 3 parameter sets, for Layers A, B and C.
-
-
-.. _DTV-ISDBT-LAYER-ENABLED:
-
-DTV_ISDBT_LAYER_ENABLED
------------------------
-
-Hierarchical reception in ISDB-T is achieved by enabling or disabling
-layers in the decoding process. Setting all bits of
-``DTV_ISDBT_LAYER_ENABLED`` to '1' forces all layers (if applicable) to
-be demodulated. This is the default.
-
-If the channel is in the partial reception mode
-(``DTV_ISDBT_PARTIAL_RECEPTION`` = 1) the central segment can be decoded
-independently of the other 12 segments. In that mode layer A has to have
-a ``SEGMENT_COUNT`` of 1.
-
-In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb according
-to ``DTV_ISDBT_PARTIAL_RECEPTION``. ``SEGMENT_COUNT`` must be filled
-accordingly.
-
-Only the values of the first 3 bits are used. Other bits will be silently ignored:
-
-``DTV_ISDBT_LAYER_ENABLED`` bit 0: layer A enabled
-
-``DTV_ISDBT_LAYER_ENABLED`` bit 1: layer B enabled
-
-``DTV_ISDBT_LAYER_ENABLED`` bit 2: layer C enabled
-
-``DTV_ISDBT_LAYER_ENABLED`` bits 3-31: unused
-
-
-.. _DTV-ISDBT-LAYER-FEC:
-
-DTV_ISDBT_LAYER[A-C]_FEC
-------------------------
-
-Possible values: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``,
-``FEC_5_6``, ``FEC_7_8``
-
-
-.. _DTV-ISDBT-LAYER-MODULATION:
-
-DTV_ISDBT_LAYER[A-C]_MODULATION
--------------------------------
-
-Possible values: ``QAM_AUTO``, QP\ ``SK, QAM_16``, ``QAM_64``, ``DQPSK``
-
-Note: If layer C is ``DQPSK`` layer B has to be ``DQPSK``. If layer B is
-``DQPSK`` and ``DTV_ISDBT_PARTIAL_RECEPTION``\ =0 layer has to be
-``DQPSK``.
-
-
-.. _DTV-ISDBT-LAYER-SEGMENT-COUNT:
-
-DTV_ISDBT_LAYER[A-C]_SEGMENT_COUNT
-----------------------------------
-
-Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)
-
-Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and
-``DTV_ISDBT_PARTIAL_RECEPTION`` and ``LAYER[A-C]_SEGMENT_COUNT``
-
-.. _isdbt-layer_seg-cnt-table:
-
-.. flat-table:: Truth table for ISDB-T Sound Broadcasting
- :header-rows: 0
- :stub-columns: 0
-
-
- - .. row 1
-
- - PR
-
- - SB
-
- - Layer A width
-
- - Layer B width
-
- - Layer C width
-
- - total width
-
- - .. row 2
-
- - 0
-
- - 0
-
- - 1 .. 13
-
- - 1 .. 13
-
- - 1 .. 13
-
- - 13
-
- - .. row 3
-
- - 1
-
- - 0
-
- - 1
-
- - 1 .. 13
-
- - 1 .. 13
-
- - 13
-
- - .. row 4
-
- - 0
-
- - 1
-
- - 1
-
- - 0
-
- - 0
-
- - 1
-
- - .. row 5
-
- - 1
-
- - 1
-
- - 1
-
- - 2
-
- - 0
-
- - 13
-
-
-
-.. _DTV-ISDBT-LAYER-TIME-INTERLEAVING:
-
-DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING
---------------------------------------
-
-Valid values: 0, 1, 2, 4, -1 (AUTO)
-
-when DTV_ISDBT_SOUND_BROADCASTING is active, value 8 is also valid.
-
-Note: The real time interleaving length depends on the mode (fft-size).
-The values here are referring to what can be found in the
-TMCC-structure, as shown in the table below.
-
-
-.. c:type:: isdbt_layer_interleaving_table
-
-.. flat-table:: ISDB-T time interleaving modes
- :header-rows: 0
- :stub-columns: 0
-
-
- - .. row 1
-
- - ``DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING``
-
- - Mode 1 (2K FFT)
-
- - Mode 2 (4K FFT)
-
- - Mode 3 (8K FFT)
-
- - .. row 2
-
- - 0
-
- - 0
-
- - 0
-
- - 0
-
- - .. row 3
-
- - 1
-
- - 4
-
- - 2
-
- - 1
-
- - .. row 4
-
- - 2
-
- - 8
-
- - 4
-
- - 2
-
- - .. row 5
-
- - 4
-
- - 16
-
- - 8
-
- - 4
-
-
-
-.. _DTV-ATSCMH-FIC-VER:
-
-DTV_ATSCMH_FIC_VER
-------------------
-
-Version number of the FIC (Fast Information Channel) signaling data.
-
-FIC is used for relaying information to allow rapid service acquisition
-by the receiver.
-
-Possible values: 0, 1, 2, 3, ..., 30, 31
-
-
-.. _DTV-ATSCMH-PARADE-ID:
-
-DTV_ATSCMH_PARADE_ID
---------------------
-
-Parade identification number
-
-A parade is a collection of up to eight MH groups, conveying one or two
-ensembles.
-
-Possible values: 0, 1, 2, 3, ..., 126, 127
-
-
-.. _DTV-ATSCMH-NOG:
-
-DTV_ATSCMH_NOG
---------------
-
-Number of MH groups per MH subframe for a designated parade.
-
-Possible values: 1, 2, 3, 4, 5, 6, 7, 8
-
-
-.. _DTV-ATSCMH-TNOG:
-
-DTV_ATSCMH_TNOG
----------------
-
-Total number of MH groups including all MH groups belonging to all MH
-parades in one MH subframe.
-
-Possible values: 0, 1, 2, 3, ..., 30, 31
-
-
-.. _DTV-ATSCMH-SGN:
-
-DTV_ATSCMH_SGN
---------------
-
-Start group number.
-
-Possible values: 0, 1, 2, 3, ..., 14, 15
-
-
-.. _DTV-ATSCMH-PRC:
-
-DTV_ATSCMH_PRC
---------------
-
-Parade repetition cycle.
-
-Possible values: 1, 2, 3, 4, 5, 6, 7, 8
-
-
-.. _DTV-ATSCMH-RS-FRAME-MODE:
-
-DTV_ATSCMH_RS_FRAME_MODE
-------------------------
-
-Reed Solomon (RS) frame mode.
-
-Possible values are:
-
-.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
-
-.. c:type:: atscmh_rs_frame_mode
-
-.. flat-table:: enum atscmh_rs_frame_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSFRAME-PRI-ONLY:
-
- ``ATSCMH_RSFRAME_PRI_ONLY``
-
- - Single Frame: There is only a primary RS Frame for all Group
- Regions.
-
- - .. row 3
-
- - .. _ATSCMH-RSFRAME-PRI-SEC:
-
- ``ATSCMH_RSFRAME_PRI_SEC``
-
- - Dual Frame: There are two separate RS Frames: Primary RS Frame for
- Group Region A and B and Secondary RS Frame for Group Region C and
- D.
-
-
-
-.. _DTV-ATSCMH-RS-FRAME-ENSEMBLE:
-
-DTV_ATSCMH_RS_FRAME_ENSEMBLE
-----------------------------
-
-Reed Solomon(RS) frame ensemble.
-
-Possible values are:
-
-
-.. c:type:: atscmh_rs_frame_ensemble
-
-.. flat-table:: enum atscmh_rs_frame_ensemble
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSFRAME-ENS-PRI:
-
- ``ATSCMH_RSFRAME_ENS_PRI``
-
- - Primary Ensemble.
-
- - .. row 3
-
- - .. _ATSCMH-RSFRAME-ENS-SEC:
-
- ``AATSCMH_RSFRAME_PRI_SEC``
-
- - Secondary Ensemble.
-
- - .. row 4
-
- - .. _ATSCMH-RSFRAME-RES:
-
- ``AATSCMH_RSFRAME_RES``
-
- - Reserved. Shouldn't be used.
-
-
-
-.. _DTV-ATSCMH-RS-CODE-MODE-PRI:
-
-DTV_ATSCMH_RS_CODE_MODE_PRI
----------------------------
-
-Reed Solomon (RS) code mode (primary).
-
-Possible values are:
-
-
-.. c:type:: atscmh_rs_code_mode
-
-.. flat-table:: enum atscmh_rs_code_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSCODE-211-187:
-
- ``ATSCMH_RSCODE_211_187``
-
- - Reed Solomon code (211,187).
-
- - .. row 3
-
- - .. _ATSCMH-RSCODE-223-187:
-
- ``ATSCMH_RSCODE_223_187``
-
- - Reed Solomon code (223,187).
-
- - .. row 4
-
- - .. _ATSCMH-RSCODE-235-187:
-
- ``ATSCMH_RSCODE_235_187``
-
- - Reed Solomon code (235,187).
-
- - .. row 5
-
- - .. _ATSCMH-RSCODE-RES:
-
- ``ATSCMH_RSCODE_RES``
-
- - Reserved. Shouldn't be used.
-
-
-
-.. _DTV-ATSCMH-RS-CODE-MODE-SEC:
-
-DTV_ATSCMH_RS_CODE_MODE_SEC
----------------------------
-
-Reed Solomon (RS) code mode (secondary).
-
-Possible values are the same as documented on enum
-:c:type:`atscmh_rs_code_mode`:
-
-
-.. _DTV-ATSCMH-SCCC-BLOCK-MODE:
-
-DTV_ATSCMH_SCCC_BLOCK_MODE
---------------------------
-
-Series Concatenated Convolutional Code Block Mode.
-
-Possible values are:
-
-.. tabularcolumns:: |p{4.5cm}|p{13.0cm}|
-
-.. c:type:: atscmh_sccc_block_mode
-
-.. flat-table:: enum atscmh_scc_block_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-SCCC-BLK-SEP:
-
- ``ATSCMH_SCCC_BLK_SEP``
-
- - Separate SCCC: the SCCC outer code mode shall be set independently
- for each Group Region (A, B, C, D)
-
- - .. row 3
-
- - .. _ATSCMH-SCCC-BLK-COMB:
-
- ``ATSCMH_SCCC_BLK_COMB``
-
- - Combined SCCC: all four Regions shall have the same SCCC outer
- code mode.
-
- - .. row 4
-
- - .. _ATSCMH-SCCC-BLK-RES:
-
- ``ATSCMH_SCCC_BLK_RES``
-
- - Reserved. Shouldn't be used.
-
-
-
-.. _DTV-ATSCMH-SCCC-CODE-MODE-A:
-
-DTV_ATSCMH_SCCC_CODE_MODE_A
----------------------------
-
-Series Concatenated Convolutional Code Rate.
-
-Possible values are:
+Note: The real time interleaving length depends on the mode (fft-size).
+The values here are referring to what can be found in the
+TMCC-structure, as shown in the table below.
-.. c:type:: atscmh_sccc_code_mode
+.. c:type:: isdbt_layer_interleaving_table
-.. flat-table:: enum atscmh_sccc_code_mode
+.. flat-table:: ISDB-T time interleaving modes
:header-rows: 1
:stub-columns: 0
- .. row 1
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-SCCC-CODE-HLF:
-
- ``ATSCMH_SCCC_CODE_HLF``
-
- - The outer code rate of a SCCC Block is 1/2 rate.
-
- - .. row 3
-
- - .. _ATSCMH-SCCC-CODE-QTR:
-
- ``ATSCMH_SCCC_CODE_QTR``
-
- - The outer code rate of a SCCC Block is 1/4 rate.
-
- - .. row 4
-
- - .. _ATSCMH-SCCC-CODE-RES:
+ - ``DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING``
- ``ATSCMH_SCCC_CODE_RES``
+ - Mode 1 (2K FFT)
- - to be documented.
+ - Mode 2 (4K FFT)
+ - Mode 3 (8K FFT)
+ - .. row 2
-.. _DTV-ATSCMH-SCCC-CODE-MODE-B:
+ - 0
-DTV_ATSCMH_SCCC_CODE_MODE_B
----------------------------
+ - 0
-Series Concatenated Convolutional Code Rate.
+ - 0
-Possible values are the same as documented on enum
-:c:type:`atscmh_sccc_code_mode`.
+ - 0
+ - .. row 3
-.. _DTV-ATSCMH-SCCC-CODE-MODE-C:
+ - 1
-DTV_ATSCMH_SCCC_CODE_MODE_C
----------------------------
+ - 4
-Series Concatenated Convolutional Code Rate.
+ - 2
-Possible values are the same as documented on enum
-:c:type:`atscmh_sccc_code_mode`.
+ - 1
+ - .. row 4
-.. _DTV-ATSCMH-SCCC-CODE-MODE-D:
+ - 2
-DTV_ATSCMH_SCCC_CODE_MODE_D
----------------------------
+ - 8
-Series Concatenated Convolutional Code Rate.
+ - 4
-Possible values are the same as documented on enum
-:c:type:`atscmh_sccc_code_mode`.
+ - 2
+ - .. row 5
-.. _DTV-API-VERSION:
+ - 4
-DTV_API_VERSION
-===============
+ - 16
-Returns the major/minor version of the DVB API
+ - 8
+ - 4
-.. _DTV-CODE-RATE-HP:
-DTV_CODE_RATE_HP
-================
-Used on terrestrial transmissions. The acceptable values are the ones
-described at :c:type:`fe_transmit_mode`.
+.. _DTV-ATSCMH-FIC-VER:
+DTV_ATSCMH_FIC_VER
+------------------
-.. _DTV-CODE-RATE-LP:
+Used only on ATSC-MH.
-DTV_CODE_RATE_LP
-================
+Version number of the FIC (Fast Information Channel) signaling data.
-Used on terrestrial transmissions. The acceptable values are the ones
-described at :c:type:`fe_transmit_mode`.
+FIC is used for relaying information to allow rapid service acquisition
+by the receiver.
+Possible values: 0, 1, 2, 3, ..., 30, 31
-.. _DTV-GUARD-INTERVAL:
-DTV_GUARD_INTERVAL
-==================
+.. _DTV-ATSCMH-PARADE-ID:
-Possible values are:
+DTV_ATSCMH_PARADE_ID
+--------------------
+Used only on ATSC-MH.
-.. c:type:: fe_guard_interval
+Parade identification number
-Modulation guard interval
--------------------------
+A parade is a collection of up to eight MH groups, conveying one or two
+ensembles.
+Possible values: 0, 1, 2, 3, ..., 126, 127
-.. flat-table:: enum fe_guard_interval
- :header-rows: 1
- :stub-columns: 0
+.. _DTV-ATSCMH-NOG:
- - .. row 1
+DTV_ATSCMH_NOG
+--------------
- - ID
+Used only on ATSC-MH.
- - Description
+Number of MH groups per MH subframe for a designated parade.
- - .. row 2
+Possible values: 1, 2, 3, 4, 5, 6, 7, 8
- - .. _GUARD-INTERVAL-AUTO:
- ``GUARD_INTERVAL_AUTO``
+.. _DTV-ATSCMH-TNOG:
- - Autodetect the guard interval
+DTV_ATSCMH_TNOG
+---------------
- - .. row 3
+Used only on ATSC-MH.
- - .. _GUARD-INTERVAL-1-128:
+Total number of MH groups including all MH groups belonging to all MH
+parades in one MH subframe.
- ``GUARD_INTERVAL_1_128``
+Possible values: 0, 1, 2, 3, ..., 30, 31
- - Guard interval 1/128
- - .. row 4
+.. _DTV-ATSCMH-SGN:
- - .. _GUARD-INTERVAL-1-32:
+DTV_ATSCMH_SGN
+--------------
- ``GUARD_INTERVAL_1_32``
+Used only on ATSC-MH.
- - Guard interval 1/32
+Start group number.
- - .. row 5
+Possible values: 0, 1, 2, 3, ..., 14, 15
- - .. _GUARD-INTERVAL-1-16:
- ``GUARD_INTERVAL_1_16``
+.. _DTV-ATSCMH-PRC:
- - Guard interval 1/16
+DTV_ATSCMH_PRC
+--------------
- - .. row 6
+Used only on ATSC-MH.
- - .. _GUARD-INTERVAL-1-8:
+Parade repetition cycle.
- ``GUARD_INTERVAL_1_8``
+Possible values: 1, 2, 3, 4, 5, 6, 7, 8
- - Guard interval 1/8
- - .. row 7
+.. _DTV-ATSCMH-RS-FRAME-MODE:
- - .. _GUARD-INTERVAL-1-4:
+DTV_ATSCMH_RS_FRAME_MODE
+------------------------
- ``GUARD_INTERVAL_1_4``
+Used only on ATSC-MH.
- - Guard interval 1/4
+Reed Solomon (RS) frame mode.
- - .. row 8
+The acceptable values are defined by :c:type:`atscmh_rs_frame_mode`.
- - .. _GUARD-INTERVAL-19-128:
- ``GUARD_INTERVAL_19_128``
+.. _DTV-ATSCMH-RS-FRAME-ENSEMBLE:
- - Guard interval 19/128
+DTV_ATSCMH_RS_FRAME_ENSEMBLE
+----------------------------
- - .. row 9
+Used only on ATSC-MH.
- - .. _GUARD-INTERVAL-19-256:
+Reed Solomon(RS) frame ensemble.
- ``GUARD_INTERVAL_19_256``
+The acceptable values are defined by :c:type:`atscmh_rs_frame_ensemble`.
- - Guard interval 19/256
- - .. row 10
+.. _DTV-ATSCMH-RS-CODE-MODE-PRI:
- - .. _GUARD-INTERVAL-PN420:
+DTV_ATSCMH_RS_CODE_MODE_PRI
+---------------------------
- ``GUARD_INTERVAL_PN420``
+Used only on ATSC-MH.
- - PN length 420 (1/4)
+Reed Solomon (RS) code mode (primary).
- - .. row 11
+The acceptable values are defined by :c:type:`atscmh_rs_code_mode`.
- - .. _GUARD-INTERVAL-PN595:
- ``GUARD_INTERVAL_PN595``
+.. _DTV-ATSCMH-RS-CODE-MODE-SEC:
- - PN length 595 (1/6)
+DTV_ATSCMH_RS_CODE_MODE_SEC
+---------------------------
- - .. row 12
+Used only on ATSC-MH.
- - .. _GUARD-INTERVAL-PN945:
+Reed Solomon (RS) code mode (secondary).
- ``GUARD_INTERVAL_PN945``
+The acceptable values are defined by :c:type:`atscmh_rs_code_mode`.
- - PN length 945 (1/9)
+.. _DTV-ATSCMH-SCCC-BLOCK-MODE:
-Notes:
+DTV_ATSCMH_SCCC_BLOCK_MODE
+--------------------------
-1) If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the
-hardware will try to find the correct guard interval (if capable) and
-will use TMCC to fill in the missing parameters.
+Used only on ATSC-MH.
-2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at
-present
+Series Concatenated Convolutional Code Block Mode.
-3) DTMB specifies PN420, PN595 and PN945.
+The acceptable values are defined by :c:type:`atscmh_sccc_block_mode`.
-.. _DTV-TRANSMISSION-MODE:
+.. _DTV-ATSCMH-SCCC-CODE-MODE-A:
-DTV_TRANSMISSION_MODE
-=====================
+DTV_ATSCMH_SCCC_CODE_MODE_A
+---------------------------
-Specifies the number of carriers used by the standard. This is used only
-on OFTM-based standards, e. g. DVB-T/T2, ISDB-T, DTMB
+Used only on ATSC-MH.
+Series Concatenated Convolutional Code Rate.
-.. c:type:: fe_transmit_mode
+The acceptable values are defined by :c:type:`atscmh_sccc_code_mode`.
-enum fe_transmit_mode: Number of carriers per channel
------------------------------------------------------
+.. _DTV-ATSCMH-SCCC-CODE-MODE-B:
-.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
+DTV_ATSCMH_SCCC_CODE_MODE_B
+---------------------------
-.. flat-table:: enum fe_transmit_mode
- :header-rows: 1
- :stub-columns: 0
+Used only on ATSC-MH.
+Series Concatenated Convolutional Code Rate.
- - .. row 1
+Possible values are the same as documented on enum
+:c:type:`atscmh_sccc_code_mode`.
- - ID
- - Description
+.. _DTV-ATSCMH-SCCC-CODE-MODE-C:
- - .. row 2
+DTV_ATSCMH_SCCC_CODE_MODE_C
+---------------------------
- - .. _TRANSMISSION-MODE-AUTO:
+Used only on ATSC-MH.
- ``TRANSMISSION_MODE_AUTO``
+Series Concatenated Convolutional Code Rate.
- - Autodetect transmission mode. The hardware will try to find the
- correct FFT-size (if capable) to fill in the missing parameters.
+Possible values are the same as documented on enum
+:c:type:`atscmh_sccc_code_mode`.
- - .. row 3
- - .. _TRANSMISSION-MODE-1K:
+.. _DTV-ATSCMH-SCCC-CODE-MODE-D:
- ``TRANSMISSION_MODE_1K``
+DTV_ATSCMH_SCCC_CODE_MODE_D
+---------------------------
- - Transmission mode 1K
+Used only on ATSC-MH.
- - .. row 4
+Series Concatenated Convolutional Code Rate.
- - .. _TRANSMISSION-MODE-2K:
+Possible values are the same as documented on enum
+:c:type:`atscmh_sccc_code_mode`.
- ``TRANSMISSION_MODE_2K``
- - Transmission mode 2K
+.. _DTV-API-VERSION:
- - .. row 5
+DTV_API_VERSION
+===============
- - .. _TRANSMISSION-MODE-8K:
+Returns the major/minor version of the Digital TV API
- ``TRANSMISSION_MODE_8K``
- - Transmission mode 8K
+.. _DTV-CODE-RATE-HP:
- - .. row 6
+DTV_CODE_RATE_HP
+================
- - .. _TRANSMISSION-MODE-4K:
+Used on terrestrial transmissions.
- ``TRANSMISSION_MODE_4K``
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
- - Transmission mode 4K
- - .. row 7
+.. _DTV-CODE-RATE-LP:
- - .. _TRANSMISSION-MODE-16K:
+DTV_CODE_RATE_LP
+================
- ``TRANSMISSION_MODE_16K``
+Used on terrestrial transmissions.
- - Transmission mode 16K
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
- - .. row 8
- - .. _TRANSMISSION-MODE-32K:
+.. _DTV-GUARD-INTERVAL:
- ``TRANSMISSION_MODE_32K``
+DTV_GUARD_INTERVAL
+==================
- - Transmission mode 32K
+The acceptable values are defined by :c:type:`fe_guard_interval`.
- - .. row 9
+.. note::
- - .. _TRANSMISSION-MODE-C1:
+ #. If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the
+ hardware will try to find the correct guard interval (if capable) and
+ will use TMCC to fill in the missing parameters.
+ #. Intervals ``GUARD_INTERVAL_1_128``, ``GUARD_INTERVAL_19_128``
+ and ``GUARD_INTERVAL_19_256`` are used only for DVB-T2 at
+ present.
+ #. Intervals ``GUARD_INTERVAL_PN420``, ``GUARD_INTERVAL_PN595`` and
+ ``GUARD_INTERVAL_PN945`` are used only for DMTB at the present.
+ On such standard, only those intervals and ``GUARD_INTERVAL_AUTO``
+ are valid.
- ``TRANSMISSION_MODE_C1``
+.. _DTV-TRANSMISSION-MODE:
- - Single Carrier (C=1) transmission mode (DTMB)
+DTV_TRANSMISSION_MODE
+=====================
- - .. row 10
- - .. _TRANSMISSION-MODE-C3780:
+Used only on OFTM-based standards, e. g. DVB-T/T2, ISDB-T, DTMB.
- ``TRANSMISSION_MODE_C3780``
+Specifies the FFT size (with corresponds to the approximate number of
+carriers) used by the standard.
- - Multi Carrier (C=3780) transmission mode (DTMB)
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
+.. note::
-Notes:
+ #. ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
+ **mode** on such standard, and are numbered from 1 to 3:
-1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
-'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K
+ ==== ======== ========================
+ Mode FFT size Transmission mode
+ ==== ======== ========================
+ 1 2K ``TRANSMISSION_MODE_2K``
+ 2 4K ``TRANSMISSION_MODE_4K``
+ 3 8K ``TRANSMISSION_MODE_8K``
+ ==== ======== ========================
-2) If ``DTV_TRANSMISSION_MODE`` is set the ``TRANSMISSION_MODE_AUTO``
-the hardware will try to find the correct FFT-size (if capable) and will
-use TMCC to fill in the missing parameters.
+ #. If ``DTV_TRANSMISSION_MODE`` is set the ``TRANSMISSION_MODE_AUTO``
+ the hardware will try to find the correct FFT-size (if capable) and
+ will use TMCC to fill in the missing parameters.
-3) DVB-T specifies 2K and 8K as valid sizes.
+ #. DVB-T specifies 2K and 8K as valid sizes.
-4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.
+ #. DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.
-5) DTMB specifies C1 and C3780.
+ #. DTMB specifies C1 and C3780.
.. _DTV-HIERARCHY:
DTV_HIERARCHY
=============
-Frontend hierarchy
-
-
-.. c:type:: fe_hierarchy
-
-Frontend hierarchy
-------------------
-
-
-.. flat-table:: enum fe_hierarchy
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _HIERARCHY-NONE:
-
- ``HIERARCHY_NONE``
-
- - No hierarchy
-
- - .. row 3
-
- - .. _HIERARCHY-AUTO:
-
- ``HIERARCHY_AUTO``
-
- - Autodetect hierarchy (if supported)
-
- - .. row 4
-
- - .. _HIERARCHY-1:
-
- ``HIERARCHY_1``
-
- - Hierarchy 1
-
- - .. row 5
-
- - .. _HIERARCHY-2:
-
- ``HIERARCHY_2``
-
- - Hierarchy 2
-
- - .. row 6
-
- - .. _HIERARCHY-4:
-
- ``HIERARCHY_4``
+Used only on DVB-T and DVB-T2.
- - Hierarchy 4
+Frontend hierarchy.
+The acceptable values are defined by :c:type:`fe_hierarchy`.
.. _DTV-STREAM-ID:
DTV_STREAM_ID
=============
+Used on DVB-S2, DVB-T2 and ISDB-S.
+
DVB-S2, DVB-T2 and ISDB-S support the transmission of several streams on
-a single transport stream. This property enables the DVB driver to
+a single transport stream. This property enables the digital TV driver to
handle substream filtering, when supported by the hardware. By default,
substream filtering is disabled.
legacy frontend, the result is just the same as with FE_GET_INFO, but
in a more structured format
+The acceptable values are defined by :c:type:`fe_delivery_system`.
+
.. _DTV-INTERLEAVING:
DTV_INTERLEAVING
================
-Time interleaving to be used. Currently, used only on DTMB.
-
-
-.. c:type:: fe_interleaving
-
-.. flat-table:: enum fe_interleaving
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _INTERLEAVING-NONE:
-
- ``INTERLEAVING_NONE``
-
- - No interleaving.
-
- - .. row 3
-
- - .. _INTERLEAVING-AUTO:
-
- ``INTERLEAVING_AUTO``
-
- - Auto-detect interleaving.
-
- - .. row 4
-
- - .. _INTERLEAVING-240:
-
- ``INTERLEAVING_240``
-
- - Interleaving of 240 symbols.
-
- - .. row 5
-
- - .. _INTERLEAVING-720:
-
- ``INTERLEAVING_720``
-
- - Interleaving of 720 symbols.
+Time interleaving to be used.
+The acceptable values are defined by :c:type:`fe_interleaving`.
.. _DTV-LNA:
git.samba.org / sfrench / cifs-2.6.git / blobdiff