* [linux-dvb] S2API: Future support for DVB-T2 [not found] ` <200810251103.27574@centrum.cz> @ 2008-10-25 9:03 ` SKOČDOPOLE Tomáš 2008-10-25 12:31 ` Mauro Carvalho Chehab 2008-10-26 14:40 ` Patrick Boettcher 0 siblings, 2 replies; 8+ messages in thread From: SKOČDOPOLE Tomáš @ 2008-10-25 9:03 UTC (permalink / raw) To: linux-dvb Hello, according to www.dvb.org: DVB-T2 standard was released. I want to ask there: is S2API ready for this standard? Or it needs some relative big chagnes? Best regards Tomas _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-25 9:03 ` [linux-dvb] S2API: Future support for DVB-T2 SKOČDOPOLE Tomáš @ 2008-10-25 12:31 ` Mauro Carvalho Chehab 2008-10-25 13:02 ` Goga777 2008-10-26 14:40 ` Patrick Boettcher 1 sibling, 1 reply; 8+ messages in thread From: Mauro Carvalho Chehab @ 2008-10-25 12:31 UTC (permalink / raw) To: SKO__DOPOLE Tom____; +Cc: linux-dvb On Sat, 25 Oct 2008 11:03:54 +0200 " SKOČDOPOLE Tomáš" <hoppik@centrum.cz> wrote: > Hello, > > according to www.dvb.org: DVB-T2 standard was released. > I want to ask there: is S2API ready for this standard? Or it needs some relative big chagnes? S2API currently doesn't support DVB-T2. However, it were designed in a way that it should be easy to extend to support any standard. Cheers, Mauro _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-25 12:31 ` Mauro Carvalho Chehab @ 2008-10-25 13:02 ` Goga777 2008-10-25 14:31 ` david may 0 siblings, 1 reply; 8+ messages in thread From: Goga777 @ 2008-10-25 13:02 UTC (permalink / raw) To: linux-dvb > > according to www.dvb.org: DVB-T2 standard was released. > > I want to ask there: is S2API ready for this standard? Or it needs some relative big chagnes? > > S2API currently doesn't support DVB-T2. However, it were designed in a way that > it should be easy to extend to support any standard. I'm wondering where is dvb-t2 broadcasting ? is it in h264 ? Goga _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-25 13:02 ` Goga777 @ 2008-10-25 14:31 ` david may 2008-10-25 19:27 ` BOUWSMA Barry 0 siblings, 1 reply; 8+ messages in thread From: david may @ 2008-10-25 14:31 UTC (permalink / raw) To: linux-dvb Hello Goga777, Saturday, October 25, 2008, 2:02:07 PM, you wrote: >> > according to www.dvb.org: DVB-T2 standard was released. >> > I want to ask there: is S2API ready for this standard? Or it needs some relative big chagnes? >> >> S2API currently doesn't support DVB-T2. However, it were designed in a way that >> it should be easy to extend to support any standard. > I'm wondering where is dvb-t2 broadcasting ? is it in h264 ? > Goga see: "http://www.tivocommunity.com/tivo-vb/showthread.php?s=aa1a55bd8c8ae60d668b4501352fea0b&p=6711180#post6711180 "Sneals2000 said: 09-25-2008, 06:07 AM The BBC are currently running the first proper live tests of DVB-T2 from a real transmitter (using BBC designed modulators and demodulators) in Guildford. It is carrying 3x11Mbs H.264 1080/50i HD video streams (using a new Thompson encoder - and delivering higher quality video than the 16.5Mbs BBC HD on DSat...) in a 36Mbs DVB-T2 mux (32k carriers and 256QAM rather than 2k/8k carriers and 16/64QAM as used by DVB-T) " its clear we need DVB-T2 ASAP or we in the UK cant see this T2 when it soon moves off the limited Guildford transmitter and on to the UK winterhill /NW transmitters later this year. -- Best regards, david _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-25 14:31 ` david may @ 2008-10-25 19:27 ` BOUWSMA Barry 0 siblings, 0 replies; 8+ messages in thread From: BOUWSMA Barry @ 2008-10-25 19:27 UTC (permalink / raw) To: linux-dvb On Sat, 25 Oct 2008, david may wrote: > Hello Goga777, > > I'm wondering where is dvb-t2 broadcasting ? is it in h264 ? The payload of DVB-T2 is -- at least from the perspective of linux-dvb -- completely independent. While Auntie is sending H.264 in their tests, there is nothing to prevent other types of payloads to be used with the better modulation ... Of particular interest is that DVB-T2 allows use of a 1,7MHz bandwidth channel, which happens to coincide with that of DAB+ / DAB as currently in use, but with potentially a greater bitrate (more stations, or possibly better quality for those suffering from economy pressure) -- possibly making those who have just binned their DAB boxen in favour of DAB+ once again having to throw their antiquated technology to the wolves. Or something. > its clear we need DVB-T2 ASAP or we in the UK cant see this T2 when Agreed, but one also needs hardware capable of the exended QAM and whatnot compared with existing DVB-T (also today existing with H.264). 'Twould be nice if the underlying support for the extended modulation techniques were already present ahead of widespread hardware availability, but often it takes months after 'Doze supported hardware is available for Linux to be able to support that hardware. > it soon moves off the limited Guildford transmitter and on to the > UK winterhill /NW transmitters later this year. Sorry, but don't you mean next year (2009) about this time? That's what I've read for the start of the DVB-T2 mux -- though I've also recently read that the Beeb is intending to start DVB-T2 ahead of the scheduled DSO in selected larger towns, thereby making DVB-T2 more widespread earlier than originally planned, and thus driving up demand for hardware capable of receiving these broadcasts that will be widespread in a bit more than a few years... An' givin' ye sprites the boot up the a*se ye need ta get DVB-T2 support right 'n' proper, innit? Chin chin, beery bouwsma drunken b'stard _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-25 9:03 ` [linux-dvb] S2API: Future support for DVB-T2 SKOČDOPOLE Tomáš 2008-10-25 12:31 ` Mauro Carvalho Chehab @ 2008-10-26 14:40 ` Patrick Boettcher 2008-10-27 17:54 ` BOUWSMA Barry 1 sibling, 1 reply; 8+ messages in thread From: Patrick Boettcher @ 2008-10-26 14:40 UTC (permalink / raw) To: SKOČDOPOLE Tomáš; +Cc: linux-dvb [-- Attachment #1: Type: TEXT/PLAIN, Size: 690 bytes --] On Sat, 25 Oct 2008, SKO?DOPOLE Tomáš wrote: > Hello, > > according to www.dvb.org: DVB-T2 standard was released. > I want to ask there: is S2API ready for this standard? Or it needs some relative big chagnes? Adding support to the API is only part of the job. The question is which currently available receiver hardware is supporting DVB-T2 and where can we get a driver for this hardware? Don't get me wrong, surely we can add support for a standard without having any hardware or drivers available. But it would be much more interesting with ;) . best regards, Patrick. -- Mail: patrick.boettcher@desy.de WWW: http://www.wi-bw.tfh-wildau.de/~pboettch/ [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-26 14:40 ` Patrick Boettcher @ 2008-10-27 17:54 ` BOUWSMA Barry 2008-10-27 18:13 ` Michael Krufky 0 siblings, 1 reply; 8+ messages in thread From: BOUWSMA Barry @ 2008-10-27 17:54 UTC (permalink / raw) To: Patrick Boettcher; +Cc: linux-dvb On Sun, 26 Oct 2008, Patrick Boettcher wrote: > Adding support to the API is only part of the job. The question is which > currently available receiver hardware is supporting DVB-T2 and where can we Apparently the following were used at a recent demo in Amsterdam: Tuner chip TDA18211HN, prototype demodulator TDA10055, both from NXP. > get a driver for this hardware? Won't it be that some poor sucker signs away their soul for NDA access to the specifics of the chips, or is it possible that the chip manufacturer might deliver already-written drivers (though looking at the existing TDAxxxxx frontend code, the former seems most likely, and I don't know how well this one manufacturer is generally with linux support) ? Support for the tuner chip above seems to have been attempted about a year ago. The above chips might make their way into set-top-boxen in half a year or so; whether they'd also be found eventually in PC-cards or USB-sticks so soon is hard to say -- but possibly by the time DVB-T2 starts for real, there may be some other cards based on other chipsets presently on the drawing board as well. And speaking of chipsets used in available hardware, does anyone know what might be used in the recently-released Hauppauge HVR-930C, a USB 2.0 stick with DVB-C as well as DVB-T support? thanks, barry bouwsma _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [linux-dvb] S2API: Future support for DVB-T2 2008-10-27 17:54 ` BOUWSMA Barry @ 2008-10-27 18:13 ` Michael Krufky 0 siblings, 0 replies; 8+ messages in thread From: Michael Krufky @ 2008-10-27 18:13 UTC (permalink / raw) To: BOUWSMA Barry; +Cc: linux-dvb On Mon, Oct 27, 2008 at 1:54 PM, BOUWSMA Barry <freebeer.bouwsma@gmail.com> wrote: > On Sun, 26 Oct 2008, Patrick Boettcher wrote: > >> Adding support to the API is only part of the job. The question is which >> currently available receiver hardware is supporting DVB-T2 and where can we > > Apparently the following were used at a recent demo in Amsterdam: > Tuner chip TDA18211HN, prototype demodulator TDA10055, both from > NXP. > > > >> get a driver for this hardware? > > Won't it be that some poor sucker signs away their soul for NDA > access to the specifics of the chips, or is it possible that > the chip manufacturer might deliver already-written drivers > (though looking at the existing TDAxxxxx frontend code, the > former seems most likely, and I don't know how well this one > manufacturer is generally with linux support) ? > > Support for the tuner chip above seems to have been attempted > about a year ago. The TDA18211HN is fully supported by the tda18271 module. The driver will not need anything specific to tune into new broadcast standards -- just the filters need to be set up properly. All of the differences in setup are exposed by the driver in the attach-time configuration structure, so the driver would not need any modification to work properly with new demodulator hardware, other than some tweaking in the attach-time configuration structure overrides. (without the overrides, the driver will use default behavior, which is appropriate for some but not all designs). I do not know of anybody working on a driver for the tda10055. Regards, Mike _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 8+ messages in thread
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[not found] ` <200810251103.27574@centrum.cz>
2008-10-25 9:03 ` [linux-dvb] S2API: Future support for DVB-T2 SKOČDOPOLE Tomáš
2008-10-25 12:31 ` Mauro Carvalho Chehab
2008-10-25 13:02 ` Goga777
2008-10-25 14:31 ` david may
2008-10-25 19:27 ` BOUWSMA Barry
2008-10-26 14:40 ` Patrick Boettcher
2008-10-27 17:54 ` BOUWSMA Barry
2008-10-27 18:13 ` Michael Krufky
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