DVB-S setup and scan
Native Dune UI includes DVB-S setup and scan functionality (available via
Setup / Applications / DVB-S).
The STB persistently stores (in the flash memory) the following kinds of
DVB-S configuration data:
- "Channel model" data.
- This enumerates all satellites and transponders known to the STB,
and DVB-S channels/bouquets found as the result of DVB-S scan
operation.
- It is possible to import the list of satellites and transponders
from the popular "satellites.xml" file format: put the XML file
named "satellites*.xml" to a USB flash drive, choose the XML file
in the Dune's file browser and press ENTER RC button. NOTE: As the
result of such an import, the list of DVB-S channels/bouquets is
cleared.
- Location in the filesystem:
/config/dvb_s_channels.xml
- Default initial state:
- Absent (no satellites defined).
- Is written:
- When the import of "satellies.xml" file via native Dune UI is
performed.
- As the result of the succesfull DVB-S scan operation.
- Is read/used:
- When "Edit LNB configuration" Setup UI is launched (to allow the
user to choose the satellite from the list of known satellites).
- When DVB-S scan is performed.
- When built-in UI (available via TV / DVB-S) for browsing
available DVB-S channels is accessed.
- "LNB configuration" data.
- This describes the DVB-S hardware connected to the STB: what LNBs
are available and what satellites are available through these LNBs
(and what DiSeqC options should be used for accessing these
satellites).
- Can be configured directly via native Dune Setup UI.
- Location in the filesystem:
/config/dvb_s_setup.xml
- Default initial state:
- Absent (no LNB configurations defined).
- Is written:
- When the user changes LNB configuration via native Dune Setup
UI.
- Is read/used:
- When DVB-S scan is performed.
- Scan results in M3U format.
- This contains the list of DVB-S channels found as the result of
DVB-S scan.
- Each DVB-S channel is represented as a DVB-S media_url (see "DVB-S
media_url syntax" section). NOTE: each media_url is valid as long
as "LNB configuration" data which was used during DVB-S scan
remains unchanged.
- Location in the filesystem:
/config/dvb_s_channels.m3u
- Default initial state:
- Absent (no DVB-S channels defined).
- Is written:
- As the result of the succesfull DVB-S scan operation.
- Is read/used:
- Is never used by the native Dune UI. Is generated mostly for
debugging purposes, and can also be used by 3-party
applications.
DVB-S media_url syntax
Syntax:
dvb:///<name>:<frequency>:S|S2
:<lnb_kind|lnb_spec>:<polarization>
:<modulation>:<symbol_rate>:<FEC_inner>
[:<roll_off>][:<switch_pos>][:<voltage_mode>][:<tone_mode>]
:<on_id>:<ts_id>:<service_id>:.ts
Examples:
dvb:///arte(ARD):10743000:S:UNIVERSAL:0:QPSK:22000000:FEC_5_6:401:402:28724:.ts
dvb:///arte(ARD):10743000:S:UNIVERSAL:0:QPSK:22000000:FEC_5_6:LNB_1:401:402:28724:.ts
Parameters:
name
TV channel caption used when the playback is performed via native
Dune UI (with native Dune OSD).
String should be encoded with UTF-8. Special chars should be escaped
using the form %hh, where hh is the hex code. List of escaped chars:
- Control chars with codes 1..31, 127.
- ":", "/", "\", "*", "?", quotation mark, "<", ">", "|", "&", "%".
frequency
Transponder frequency (Hz).
lnb_kind
LNB kind, possible values:
UNIVERSAL|CIRCULAR|C-BAND
lnb_spec
LNB frequencies (Hz), in one of the following forms:
<low>,<high>,<threshold>|<freq>
polarization
Polarization, possible values:
0|H|L (these values are equivalent to each other)
1|V|R (these values are equivalent to each other)
modulation
Modulation, possible values:
QPSK|8PSK
symbol_rate
Transponder symbol rate (symbols per second).
FEC_inner
FEC (Forward Error Correction), possible values:
FEC_AUTO|FEC_1_2|FEC_2_3|FEC_3_4|FEC_5_6|FEC_7_8|
FEC_8_9|FEC_3_5|FEC_4_5|FEC_9_10|FEC_6_7
roll_off
Roll-off (Only for DVB-S2), possible values:
ROLLOFF_AUTO|ROLLOFF_20|ROLLOFF_25|ROLLOFF_35
switch_pos
DiSeqC switch, possible values:
LNB_1|LNB_2|LNB_3|LNB_4
voltage_mode
Voltage mode, possible values:
VOLTAGE_MODE_POL|VOLTAGE_MODE_13V|VOLTAGE_MODE_18V
tone_mode
Tone mode, possible values:
TONE_MODE_BAND|TONE_MODE_ON|TONE_MODE_OFF
on_id
Original network ID.
ts_id
Transport stream ID.
service_id
Service ID.
DVB-C setup and scan
Native Dune UI includes DVB-C setup and scan functionality (available via
Setup / Applications / DVB-C).
The STB persistently stores (in the flash memory) the following kinds of
DVB-C configuration data:
- Scan configuration data.
- Defines DVB-C scan parameters.
- Can be configured directly via native Dune Setup UI.
- It is stored along with other STB settings in
"/config/settings.properties" and is not intended to be directly
used/modified by 3rd-party software.
- Default initial state:
- Some typical DVB-C parameters.
- Is written:
- When the user changes DVB-C configuration via native Dune Setup
UI.
- Is read/used:
- When DVB-C scan is performed.
- Scan results.
- Contains the list of DVB-C channels found as the result of
DVB-C scan.
- Each DVB-C channel is represented as a DVB-C media_url (see "DVB-C
media_url syntax" section). A folder is created for each scanned
channel, named with service name (in escaped form as described in
DVB media_url format), containing the "dune_folder.txt" with the
media_url in its content. NOTE: This representation is likely to
change (become more consistent with the way scan results are stored
for DVB-S) in future firmware versions.
- Location in the filesystem:
"/flashdata/DVBC_channels"
- Default initial state:
- Absent (no DVB-C channels defined).
- Is written:
- As the result of the succesfull DVB-C scan operation.
- Is read/used:
- When built-in UI (available via TV / DVB-C) for browsing
available DVB-C channels is accessed.
DVB-C media_url syntax
Syntax:
dvb:///<name>:<frequency>:C
:<bandwidth>
:<modulation>:<symbol_rate>[:<FEC>]
[:<inversion>]
:<on_id>:<ts_id>:<service_id>:.ts
Examples:
dvb:///OnLime%201:200000000:C:BW_6:QAM_AUTO:5157000:FEC_AUTO:5910:1:1:.ts
Parameters:
name
TV channel caption used when the playback is performed via native
Dune UI (with native Dune OSD).
String should be encoded with UTF-8. Special chars should be escaped
using the form %hh, where hh is the hex code. List of escaped chars:
- Control chars with codes 1..31, 127.
- ":", "/", "\", "*", "?", quotation mark, "<", ">", "|", "&", "%".
frequency
Transponder frequency (Hz).
bandwidth
Bandwidth, possible values:
BW_5|BW_6|BW_7|BW_8
modulation
Modulation, possible values (including the AUTO):
QAM_AUTO|QAM_16|QAM_32|QAM_64|QAM_128|QAM_256
symbol_rate
Transponder symbol rate (symbols per second).
FEC
FEC (Forward Error Correction), possible values (default is AUTO):
FEC_AUTO|FEC_1_2|FEC_2_3|FEC_3_4|FEC_5_6|FEC_7_8|
FEC_8_9|FEC_3_5|FEC_4_5|FEC_9_10|FEC_6_7
inversion
Pssible values (default is AUTO):
INVERSION_OFF|INVERSION_ON|INVERSION_AUTO
on_id
Original network ID.
ts_id
Transport stream ID.
service_id
Service ID.
DVB-C hardware
Dune HD TV-102C uses Maxlinear MXL241SF single-chip chipset. It supports:
- Frequency range: from 44 MHz to 1002 MHz.
- Bandwitdh: 6 MHz, 8 MHz.
- Symbol rate: unrestricted (any allowed by the DVB-C spec).
DVB-T setup and scan
Native Dune UI includes DVB-T setup and scan functionality (available via
Setup / Applications / DVB-T).
The STB persistently stores (in the flash memory) the following kinds of
DVB-T configuration data:
- Scan configuration data.
- Defines DVB-T scan parameters.
- Can be configured directly via native Dune Setup UI.
- It is stored along with other STB settings in
"/config/settings.properties" and is not intended to be directly
used/modified by 3rd-party software.
- Default initial state:
- Full automatic scan.
- Is written:
- When the user changes DVB-T configuration via native Dune Setup
UI.
- Is read/used:
- When DVB-T scan is performed.
- Scan results.
- Contains the list of DVB-T channels found as the result of
DVB-T scan.
- Each DVB-T channel is represented as a DVB-T media_url (see "DVB-T
media_url syntax" section). A folder is created for each scanned
channel, named with service name (in escaped form as described in
DVB media_url format), containing the "dune_folder.txt" with the
media_url in its content. NOTE: This representation is likely to
change (become more consistent with the way scan results are stored
for DVB-S) in future firmware versions.
- Location in the filesystem:
"/flashdata/DVBT_channels"
- Default initial state:
- Absent (no DVB-T channels defined).
- Is written:
- As the result of the succesfull DVB-T scan operation.
- Is read/used:
- When built-in UI (available via TV / DVB-T) for browsing
available DVB-T channels is accessed.
DVB-T media_url syntax
Syntax:
dvb:///<name>:<frequency>:T|T2
:<bandwidth>
[:<inversion>][:<FEC_HP>[:<FEC_LP>]][:<modulation>]
[:<transmission_mode>][:<guard_interval>][:<hierarchy>]
:<on_id>:<ts_id>:<service_id>:.ts
Examples:
dvb:///Channel_T:578000000:T:BW_8:8835:1:7:.ts
dvb:///Channel_T2:546000000:T2:0:BW_8:8835:1:7:.ts
Parameters:
name
TV channel caption used when the playback is performed via native
Dune UI (with native Dune OSD).
String should be encoded with UTF-8. Special chars should be escaped
using the form %hh, where hh is the hex code. List of escaped chars:
- Control chars with codes 1..31, 127.
- ":", "/", "\", "*", "?", quotation mark, "<", ">", "|", "&", "%".
frequency
Transponder frequency (Hz).
inversion
Inversion mode, possible values (default is AUTO):
INVERSION_OFF|INVERSION_ON|INVERSION_AUTO
FEC_HP
FEC (Forward Error Correction) for High Profile, possible values
(default is AUTO):
FEC_AUTO|FEC_1_2|FEC_2_3|FEC_3_4|FEC_5_6|FEC_7_8|
FEC_8_9|FEC_3_5|FEC_4_5|FEC_9_10|FEC_6_7
FEC_LP
FEC (Forward Error Correction) for Low Profile, possible values
(default is AUTO):
FEC, possible values (default is AUTO):
FEC_AUTO|FEC_1_2|FEC_2_3|FEC_3_4|FEC_5_6|FEC_7_8|
FEC_8_9|FEC_3_5|FEC_4_5|FEC_9_10|FEC_6_7
modulation
Modulation, possible values (including the AUTO; QAM_256 valid for
T2 but not for T):
QPSK|QAM_16|QAM_64|QAM_256|QAM_AUTO
transmission_mode
Transmission mode, possible values (default is AUTO):
TRANSMISSION_MODE_2K|TRANSMISSION_MODE_8K|TRANSMISSION_MODE_AUTO
guard_interval
Guard interval, possible values (default is AUTO):
GUARD_INTERVAL_1_16|GUARD_INTERVAL_1_32|GUARD_INTERVAL_1_4|
GUARD_INTERVAL_1_8|GUARD_INTERVAL_AUTO
hierarchy
Hierarchy information, possible values (default is AUTO):
HIERARCHY_1|HIERARCHY_2|HIERARCHY_4|HIERARCHY_NONE|HIERARCHY_AUTO
symbol_rate
Transponder symbol rate (symbols per second).
on_id
Original network ID.
ts_id
Transport stream ID.
service_id
Service ID.
NOTE: Dune's playback engine also accepts legacy syntax of DVB media_url
which uses "dvb://" prefix instead of "dvb:///". The legacy syntax is not
recommended to be used in any new developments.
STB API for working with DVB
See here:
- http://files.dune-hd.com/sdk/doc/html/sdk.html, "JS STB SDK" =>
- js_stb_sdk-*/doc/dune_js_stb_api.txt, "DVB" section