Em 25-12-2009 09:25, Patrick Boettcher escreveu: > Hi Mauro, > > On Fri, 25 Dec 2009, Mauro Carvalho Chehab wrote: > >> Em 24-12-2009 00:17, Mauro Carvalho Chehab escreveu: >>> I wrote several patches those days in order to allow dvb-apps to >>> properly >>> parse ISDB-T channel.conf. >>> >>> On ISDB-T, there are several new parameters, so the parsing is more >>> complex >>> than all the other currently supported video standards. >>> >>> I've added the changes at: >>> >>> http://linuxtv.org/hg/~mchehab/dvb-apps-isdbt/ >>> >>> I've merged there Patrick's dvb-apps-isdbt tree. >>> >>> While there, I fixed a few bugs I noticed on the parser and converted it >>> to work with the DVB API v5 headers that are bundled together with >>> dvb-apps. >>> This helps to avoid adding lots of extra #if DVB_ABI_VERSION tests. >>> The ones >>> there can now be removed. >>> >>> TODO: >>> ===== >>> >>> The new ISDB-T parameters are parsed, but I haven't add yet a code to >>> make >>> them to be used; >>> >>> There are 3 optional parameters with ISDB-T, related to 1seg/3seg: the >>> segment parameters. Currently, the parser will fail if those >>> parameters are found. >>> >>> gnutv is still reporting ISDB-T as "DVB-T". >>> >> >> I've just fixed the issues on the TODO list. The DVB v5 code is now >> working fine >> for ISDB-T. >> >> Pending stuff (patches are welcome): >> - Implement v5 calls for other video standards; >> - Remove the duplicated DVBv5 code on /util/scan/scan.c (the code >> for calling >> DVBv5 is now at /lib/libdvbapi/v5api.c); >> - Test/use the functions to retrieve values via DVBv5 API. The >> function is >> already there, but I haven't tested. >> >> With the DVBv5 API implementation, zap is now working properly with >> ISDB-T. >> gnutv also works (although some outputs - like decoder - may need some >> changes, in >> order to work with mpeg4/AAC video/audio codecs). > > Very good job! Thanks! > Have you had a look here on this one > > http://www.mail-archive.com/vdr@xxxxxxxxxxx/msg11125.html > > ? > > I had this on my list because I wanted to spent some time on DVB-S2 > myself and it seemed to be a good step to merge it (back) into dvb-apps. > Though I haven't yet looked at it in detail. > > I will check your changes soon, but after the holidays. > > So, now you should have some quiet time for yourself! ;-) It shouldn't be hard to add DVB-S2 to dvb-apps, now that I've added support for ISDB-T. Basically, it needs to move the DVB-S code that it is inside /util/scan/scan.c to /lib/libdvbapi/v5api.c, extend it to DVB-S2 and write the parser and the new fields for DVB-S2. Since the dvb-apps library has an abstraction layer, the biggest part is to add the abstraction layer bits, but this is not a hard part, and, as DVB-S2 will share several parts with DVB-S, probably it will require less work. Cheers, Mauro. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
