TvHeadend on kernel 2.4.20

Pavol Grohol · 2012-10-24T16:56:12+00:00

Hi, is it possible to compile TvHeadend on a kernel 2.4.20? When I try to do it, I am getting errors about missing header files: In file included from /op...

Pavol Grohol

Adam, sorry for stupid question. But it is probably the quickest way how to get right way....

What should I do to get sources of 2.12?

Till now I just did what is described here:

https://www.lonelycoder.com/redmine/issues/1018

But this seems to get latest sources.

Adam Sutton

Actually looking at the code I think it will indeed require quite a bit of work to get this working properly.

We are planning to restructure some stuff quite a lot in 3.4, I will try and bare this in mind.

If you do get it working though, let me know I'd be interested in what you changed etc..

Adam

Adam Sutton

git clone FOO

git checkout 2.12

if you need to make your own changes and track those:
git checkout -b BLAH

will create a new branch named BLAH from 2.12

I think it might be easier with 2.12/3.0 just because it doesn't include my epg code which I know breaks the --disable-linuxdvb.

However I think its always been assumed the kernel headers would be there even if they're not used. This is something I will try and look at for 3.4, if I remember. If you do report as an issue that would be appreciated so I don't forget ;) and also good place to track what you find.

Adam

Pavol Grohol

Cool, I can help with testing "IPTV only" flags :-)

Adam Sutton

One issue that needs to be overcome is the rather blurred edge between real DVB (i.e. linux DVB) code and the stuff that sits on top of that to help us process stuff in the MPEGTS stream (including the SI tables).

Some of this is obviously is re-used for IPTV and the SI tables stuff in particular will cause problems here as that references our own DVB structures (where it need not) which in turn references the linux stuff.

We have talked about fixing this, so hopefully something will happen, its just finding the time.

Adam

Pavol Grohol

You have scared me now :-(

Adam Sutton

It's not as bad as it sounds, probably worse for me ;)

You can simply chop huge swathes of code out (with the #if's) to get what you need, but I need to give it more thought to be sure exactly where the axe should eventually fall.

Just shout if you get stuck. And thank's for the bug report.

Adam

Pavol Grohol

Hi Adam,

so I am working on latest TvHeadend for the start.

I have commented out a lot of code that is not needed in my opinion for IPTV.

But now I am stuck at:
- clock_nanosleep in file rawtsinput.c == seems that my system does not have the method

- atomic_add in file atomic.h == the same story. I have tried to usesync_fetch_and_add, but I am getting "undefined reference to `__sync_fetch_and_add_4'" error.

Any ideas?
Thanks

Adam Sutton

Not sure about when clock_nanosleep started appearing in libc/kernel etc.. But you can probably ignore that code as you possibly won't need it. Also the atomic code has recently been significantly changed to rely entirely on the built-in functions provided within GCC. However you must use GCC > 4.3/4?

To overcome the atomic's issue you could just use the release/3.2 branch which does not include the atomic mods.

Adam

Pavol Grohol

Hi Adam,

I was able to checkout 2.12 as you explained me (git checkout 2.12).
But how to get 3.2?
I have tried git checkout 3.2 and also git checkout v3.2 but this did not work....

Adam Sutton

git checkout v3.2 (that's the release tag)
or

git checkout release/3.2 (that's the release branch)

Adam

Pavol Grohol

Hi Adam,

I am still having a problem with atomic_add...
What would happen if the method is not atomic? Would it cause some problems?

Pavol Grohol

OK, so it seems I am done....
After a lot of code changes I was able to compile but when it is starting I just get lots of errors:

tcp_server: epoll_wait: Function not implemented

Seems that I would need to update the firmware of my router to be able to run TvHeadend.
It seems that on OpenWRT it could be done.
I am using Oleg firmware which is pretty old :-(
Ok, let's see if I will have a guts to start from beginning with router settings :-)
Now I am taking a break and looking forward to 3.4 version.

Igosr Petroff

Hi Pavol.

I'm also trying to compile stuff only for IPTV in regular PC (not for router) but from John Tornblom's transcoding branch ( without success too ). I need only IPTV but without cwc and dvb at all plus for transcoding HD from 1080i to 720p. Also will be great to add multicasting output too. Actually here is some code inside /src/iptv_output.c but think need to somehow to implement it.Can you please share your code work here?

Regards.

P.S. Try to compile 2.12 branch. Also error.with --disable-avahi --disable-linuxdvb --disable-v4l --disable-cwc options :(
/home/igosr/tvheadend/src/transports.c:1064: undefined reference to `dvb_transport_get_signal_status'
collect2: ld returned 1 exit status
make:* [build.Linux/tvheadend] Error 1
So will try older versions but it's buggy :(

Pavol Grohol

Hi,

do you also have some older kernel?
Because when I have compiled TvHeadend for "regular pc" (raspberry pi :-)), it was working without problems.

If you need just IPTV then use --disable-avahi --disable-linuxdvb --disable-v4l --disable-cwc options.

It is difficult to share my work because it is a lot of #ifdef lines added without too much sence :-)
I really just wanted to try what happens when it compiles.

But the result is not working.

If you really want to see it, I can try to put it to github to some branch.
By the way, I was working on 2.12 version.

Igosr Petroff

I compiled it on last 3 kernel in uname -a
Linux igosr 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:32:50 UTC 2012 i686 i686 i386 GNU/Linux
igosr@igosr:~$ I have some knowledge in C and assembler so I can uderstand what you did. If you can share your work please attach source here or somewhere.

Pavol Grohol

My biggest problem was missing dvb kernel headers and a couple of calls without implementation in my uClibc.
Find files that I have changed attached.
Please do not be disappointed. The changes are not worth a Nobel price :-)
If you have some comments or something that could be done better (especially atomic_add method) please let me know.

Igosr Petroff

Tonight I was testing last version from git 3.3.122~g3cd6336-dirty and can say that working pretty nice with mumudvb
from here: https://github.com/ostryck/MuMuDVB (this version of mumudvb with newcamd support). Before I can't get mumu up with Tvheadend. Why mumu if Tvheadnd supporting dvb-adapters? Simple - for generating tests multicast streams. ( mumu can sid, sdt rewrite and much more).Ofcourse I did quick and dirty things- simply commented in /src/main.c a couple of lines but for testing purpose it's ok :) So as I told before I need only iptv support. I want to know even possible to get scrambled iptv channels working with IPTV support of Tvheadend like it works with dvb adapters?

Nov 01 01:38:07 [INFO]:subscription: "HTTP" subscribing on "test2", weight: 100, adapter: "eth0", network: "<N/A>", mux: "239.100.0.0", provider: "<N/A>", service: "<N/A>", quality: 100

Last thing to get it up with transcoding. There is big problem to put right options in ffmpeg because for now something is wrong that ffmpeg's structure of stream a bit different then from mumudvb. Will try to analyse it later.

Rgards.

Pavol Grohol

Hi Adam,

I have updated to kernel 3.3.8 and I have build and started tvheadend 2.12.99 successfully :-).

I was also able to configure one channel and connect with XBMC to tvheadend. But when selecting the channel to play, I see that it is subscribing but then I get error "Graceperiod expired". What could be the reason?

Thanks.

Igosr Petroff

I have same thing with old 2.12.99 that's reason why I'm trying to play with latest git version.