Re: [RFC] dvb-apps ported for ISDB-T

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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!

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! ;-)

regards,

--

Patrick Boettcher - Kernel Labs
http://www.kernellabs.com/
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