File Format Comparison: Difference between revisions
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</pre> |
</pre> |
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Can only represent DVBS. |
* Can only represent DVBS. |
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From libdvb - cannot find other examples. |
* From libdvb - cannot find other examples. |
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Can be edited in a text editor. |
* Can be edited in a text editor. |
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Easy to parse. |
* Easy to parse. |
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Appears to be the format used by an unknown nokia receiver (?) |
* Appears to be the format used by an unknown nokia receiver (?) |
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May not be the same across all nokia devices. |
* May not be the same across all nokia devices. |
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Example: |
Example: |
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<pre> |
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<?xml version="1.0"?> |
<?xml version="1.0"?> |
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<satellite> |
<satellite> |
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</stream> |
</stream> |
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</satellite> |
</satellite> |
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</pre> |
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Can represent all FE types. |
* Can represent all FE types. |
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Extensible |
* Extensible |
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Can be edited in a text editor, but XML reduces clarity. |
* Can be edited in a text editor, but XML reduces clarity. |
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Easy to parse, but requires XML parser. |
* Easy to parse, but requires XML parser. |
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Revision as of 14:55, 14 June 2005
Comparison of existing DVB file formats.
"Nokia" format.
Example:
:SAT "Astra" 19.2 E :NET "Canal Sat :TRP 1074 1189500 275000 1 V 0 3/4 :CHN "Canal Sat :CHN "Hit List" 29461 R
- Can only represent DVBS.
- From libdvb - cannot find other examples.
- Can be edited in a text editor.
- Easy to parse.
- Appears to be the format used by an unknown nokia receiver (?)
- May not be the same across all nokia devices.
meztler bros' libdvb XML
Example:
<?xml version="1.0"?> <satellite> <transponder type="S" freq="11817000" srate="27500000" polarity="V" > <service id="8001" ca="1"> <description tag="0x48" type="1" provider_name="CANALSATELLITE" service_name="S$ <ca_descriptor tag="0x09" system_id="0x0500" ca_pid="2" /> <ca_descriptor tag="0x09" system_id="0x0500" ca_pid="5" /> <stream type="198" pid="1251"> </stream> </satellite>
- Can represent all FE types.
- Extensible
- Can be edited in a text editor, but XML reduces clarity.
- Easy to parse, but requires XML parser.
meztler bros' libdvb plaintext
Example:
LNB ID 2 TYPE 0 LOF1 9750000 LOF2 10600000 SLOF 11700000 DISEQCNR 2
SAT ID 3592 NAME "Thor 2,3 " LNBID 2 FMIN 10700000 FMAX 12700000
TRANSPONDER ID 0001 SATID 3592 TYPE 0 FREQ 11229000 POL H SRATE 24500000 FEC 7/8
CHANNEL ID 0 SATID 3592 TPID 1 SID ca TYPE 0 VPID 2bc APID 2bd ANAME "eng" TTPID c9 PCRPID 2bc
CHANNEL ID 1 SATID 3592 TPID 1 SID cb TYPE 0 VPID 200 APID 280 TTPID 240
CHANNEL ID 2 SATID 3592 TPID 1 SID cd TYPE 0 VPID 258 APID 259 TTPID cb
CHANNEL ID 3 SATID 3592 TPID 1 SID 196 TYPE 0 VPID 384 APID 385 TTPID 12d
Can represent all FE types.
Exact meaning of some values unclear.
Extensible.
Easy to edit in a text editor.
Easy to parse.
satcodx
Example:
SATCODX103PANAMSAT 9 TDIC10037200001USA Amer3020PAN009CA______195103000000000000000030000100001ESP__________ica Latina SATCODX103PANAMSAT 9 TDIC10037200001Cino Lat3020PAN009CA______195103000000000000000040000100001ESP__________ino SATCODX103PANAMSAT 9 TDIC10037200001Exa TV 3020PAN009CA______195103000000000000000050000100001ESP__________ SATCODX103PANAMSAT 9 TDIC10037200001Hallmark3020PAN009CA______195103000000000000000060000100001ESP__________ Channel Mex SATCODX103PANAMSAT 9 TDIC10037200001MVS Empr3020PAN009CA______195103000000000000000070000100001ESP__________esarial
Likely can only be able to represent DVBS. Not easily editable.. or understood :) Easy to parse. Not extensible.
- zap
BBC Radio 1:658166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6210:14336 BBC Radio 2:658166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6226:14400 BBC Radio 3:658166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6242:14464 BBC Radio 4:658166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6258:14528
Can represent all FE types - but exact FE type is not encoded in the file. Easily editable and understood. Easy to parse. Not easily extensible - you can keep adding on more stuff at the end, but this reduces clarity a great deal.