dvb-format-convert

From LinuxTVWiki
Jump to navigation Jump to search

dvb-format-convert is a command line tool for digital TV services that is compliant with version 5 of the DVB API, and backward compatable with the older v3 DVB API. It was developed as part of DVBv5 Tools suite, which resides in the v4l-utils git repositiory [1].

dvb-format-convert is a tool meant to convert among different file formats.

For other dvbv5 tools, please see the main article.

At v4l-utils version 1.4.0, there are 3 different formats supported: - dvbv5 - the standard format at libdvbv5, capable of representing all different TV standards; - channel - the dvb-apps legacy channel format, with supports only ATSC, DVB-C, DVB-S and DVB-T standards, extended to also support s2-scan format for DVB-S2 files, and to support DVB-T2. - zap - the dvb-apps legacy format for tuning, with supports only ATSC, DVB-C, DVB-S and DVB-T standards.

Unfortunately, the dvb-apps legacy zap format doesn't store the DVB standard. So, any conversions to and/or from this format requires an extra parameter, to specify the delivery system.

Examples:

To convert a channel file from legacy dvb-apps format: 

$ dvb-format-convert -I channel -O dvbv5 dvbc-channel-legacy dvbc-channel
Reading file dvbc-channel-legacy
Writing file dvbc-channel

To convert a dvbv5 file with services on it to legacy dvb-apps zap format: 

$ dvb-format-convert -I dvbv5 -O zap -s dvbc/annex_a dvb_channel.conf legacy.conf
Reading file dvb_channel.conf
Writing file legacy.conf
WARNING: missing video PID while parsing entry 8 of legacy.conf
WARNING: missing audio PID while parsing entry 8 of legacy.conf
WARNING: missing video PID while parsing entry 9 of legacy.conf
WARNING: missing audio PID while parsing entry 9 of legacy.conf
WARNING: missing video PID while parsing entry 10 of legacy.conf
WARNING: missing video PID while parsing entry 11 of legacy.conf
WARNING: missing video PID while parsing entry 12 of legacy.conf
WARNING: missing video PID while parsing entry 13 of legacy.conf
WARNING: missing video PID while parsing entry 14 of legacy.conf
WARNING: missing video PID while parsing entry 15 of legacy.conf
WARNING: missing audio PID while parsing entry 15 of legacy.conf
WARNING: missing video PID while parsing entry 16 of legacy.conf
WARNING: missing audio PID while parsing entry 16 of legacy.conf

Please notice that the legacy dvb-apps format assumes that every channel will have one (and just one) audio PID and one (and just one) video PID, while the dvbv5 format supports multiple PID per service type.

The above warnings happened on pure-audio channels and on data-only channels:

Original dvb_channel.conf file: 

[SBT]
	SERVICE_ID = 4
	VIDEO_PID = 42
	AUDIO_PID = 257
	PID_f1 = 768
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Globo]
	SERVICE_ID = 5
	VIDEO_PID = 288
	AUDIO_PID = 289
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Record]
	SERVICE_ID = 7
	VIDEO_PID = 36
	AUDIO_PID = 305
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Band]
	SERVICE_ID = 13
	VIDEO_PID = 272
	AUDIO_PID = 273
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Boa Vontade TV]
	SERVICE_ID = 18
	VIDEO_PID = 368
	AUDIO_PID = 369
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[TNT]
	SERVICE_ID = 48
	VIDEO_PID = 336
	AUDIO_PID = 337 338 849
	PID_86 = 816
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Boomerang]
	SERVICE_ID = 57
	VIDEO_PID = 352
	AUDIO_PID = 353 354
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Cartoon]
	SERVICE_ID = 104
	VIDEO_PID = 320
	AUDIO_PID = 321 322
	PID_86 = 1840
	PID_05 = 3295
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[NET Games]
	SERVICE_ID = 252
	PID_05 = 3047 3046 3045 3044 3042
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[NET Música]
	SERVICE_ID = 300
	PID_05 = 3314
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Pagode]
	SERVICE_ID = 307
	AUDIO_PID = 102
	PID_05 = 202
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Axé]
	SERVICE_ID = 309
	AUDIO_PID = 101
	PID_05 = 201
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Festa]
	SERVICE_ID = 326
	AUDIO_PID = 103
	PID_05 = 203
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Trilhas Sonoras]
	SERVICE_ID = 342
	AUDIO_PID = 104
	PID_05 = 204
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[Rádio Globo RJ]
	SERVICE_ID = 347
	AUDIO_PID = 629
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[01070138]
	SERVICE_ID = 800
	PID_05 = 40
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A


[01070238]
	SERVICE_ID = 801
	PID_05 = 7441
	FREQUENCY = 573000000
	MODULATION = QAM/256
	INVERSION = AUTO
	SYMBOL_RATE = 5217000
	INNER_FEC = NONE
	DELIVERY_SYSTEM = DVBC/ANNEX_A

So, for the channels with multiple PIDs, the converted legacy.conf file will have just the first one.

For the channels without an audio or video PID, it will store PID=0.

This is the output file for the above channel list. 

SBT:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:42:257:4
Globo:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:288:289:5
Record:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:36:305:7
Band:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:272:273:13
Boa Vontade TV:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:368:369:18
TNT:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:336:337:48
Boomerang:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:352:353:57
Cartoon:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:320:321:104
NET Games:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:0:252
NET Música:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:0:300
Pagode:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:102:307
Axé:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:101:309
Festa:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:103:326
Trilhas Sonoras:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:104:342
Rádio Globo RJ:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:629:347
01070138:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:0:800
01070238:573000000:INVERSION_AUTO:5217000:FEC_NONE:QAM_256:0:0:801
Retrieved from "https://www.linuxtv.org/wiki/index.php?title=Dvb-format-convert&oldid=33590"