#linuxtv 2016-05-21,Sat

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WhoWhatWhen
pahi
anyone with a dvb-s2 card aligned to Hotbird 13E in here?
[16:36]
............. (idle for 1h1mn)
Ormupa: i have a standalone receiver pointed to 13E
does anyone here have experience on DVB cards on Windows?
i have Technotrend TT-Budget C-1501, which shows lots of artifacts when watched using ProgDVB on Windows. On Linux, it works fine (with VLC and Kaffeine). However, if I boot to Linux, then reboot to Windows, the artifacts are gone
so I suppose the Linux driver loads a properly working firmware or configuration to the card, but the Windows driver does not
or could this be something related to the motherboard settings?
the Windows driver is the latest version provided by Technotrend, and it's a BDA driver
[17:37]
...... (idle for 25mn)
paOrmu, oh okay.. no i need someone who can use linux apps with the card..
Ormu, i have the same problem
on windoze progdvb shows artifacts
but they persist iirc
but i have a different card
[18:04]
.... (idle for 19mn)
xdarklight_crope: hello :) are you aware of any issues with those Astrometa AMDVB-T2 v2 devices and DVB-C? I get -EINVAL when vlc calls the DMX_SET_PES_FILTER ioctl: https://paste.kde.org/prl8axlvs#line-19 [18:23]
(v2 as in r828d and MN88473) [18:36]
.......... (idle for 45mn)
merbananxdarklight_: DMX_SET_PES_FILTER should work, I added support for PID filters
xdarklight: what kernel/driver do you use ?
[19:21]
xdarklightmerbanan: 4.6.0 and dvb_usb_rtl28xxu [19:25]
merbananxdarklight: I'll check
xdarklight: can you receive or does it not work ?=
[19:27]
xdarklight(I'm using vlc which works fine on my other em28xx based card) vlc does not even try to open the frontend -> I'm not receiving anything
merbanan: please note that this is the special case with a slave demod (might be relevant)
merbanan: sorry, but I have to go for half an hour - I'll be back in 30 min
[19:30]
merbananxdarklight: yeah, my changes are not in 4.6 :/
you might need to compile newer drivers
[19:35]
..... (idle for 22mn)
cropemerbanan: your pid filter patch didnt applied and told that you. you have just forgot to send new patch [19:57]
merbanancrope: look at that :/ my bad [19:59]
cropexdarklight: can you test it using vlc?
$ dvbv5-zap "Yle TV1 HD" --adapter=0 --frontend=1 --record
$ vlc --dvb-budget-mode dvb://
[19:59]
xdarklightmerbanan: ah, found your patch - however, latest comment is that you want to rebase it: https://patchwork.linuxtv.org/patch/32030/
I just rebased it manually, let's see
crope: let me test that also - I just have to figure out the channels.conf format for dvbv5-zap
[20:08]
merbananxdarklight: my patch will not magically make stuff work, it will just enable pid filter support [20:09]
xdarklightcrope: hmm: https://paste.kde.org/pqt1be26b
(here's my channels.conf / test.conf: https://paste.kde.org/purvmopdr )
[20:11]
merbanantuning to 122000000 Hz ? [20:12]
xdarklightmerbanan: well, provider says symbol rate = 6900, 122MHz, QAM 256 is where channel block 02 lives :)
ah, a channel at 442MHz seems to work better (QAM 64 though)
[20:14]
merbananI think I know what the problem might be
I have only tested the demod + tuner at 290MHz at the lowest
122MHz probably uses the wrong tuner settings for DVB-C
[20:16]
xdarklightcrope: 422MHz QAM64 channel: https://paste.kde.org/pftev9qyt - but vlc reports: [00007fe0a4000e28] dvb access error: FrontEndOpen: opening device failed: Device or resource busy
merbanan: in which part of the puzzle (assuming you're speaking of mn88473)?
[20:18]
merbananxdarklight: just to be sure, do you have digital channels at 122MHz ? [20:19]
xdarklightmerbanan: yes - and my em28xx based card receives the programs there just fine [20:19]
merbananastrometa has a R828D tuner and mn88473 demod [20:19]
xdarklightah, we're one level further down now - that's where R828D comes into play :) [20:20]
merbananxdarklight: I have never had digital tv working at that low frequency with the R828D, thus not tested
I am 90% sure the tuner settings are wrong for that scenario
[20:21]
xdarklightok, I have lots of channels below 290MHz
let's see where it breaks
[20:22]
merbanando you get lock at 300MHz ?
and working reception?
[20:23]
xdarklight274MHz still seems to lock [20:23]
cropeERROR command SYMBOL_RATE (8) not found during store
ERROR command INNER_FEC (9) not found during store
you are missing those 2 required parameters
[20:23]
xdarklightcrope: but they're there: https://paste.kde.org/pmlxuiipw
or do I have the wrong format?
[20:26]
cropemy live cable frquencies are between 266000000 - 378000000 and all are working. got many bug raports that higher frequencies are not working
[Eurosport] SERVICE_ID = 905 VIDEO_PID = 1103 AUDIO_PID = 3098 4083 4086 4087 PID_06 = 6016 FREQUENCY = 370000000 MODULATION = QAM/128 INVERSION = OFF SYMBOL_RATE = 6875000 INNER_FEC = NONE DELIVERY_SYSTEM = DVBC/ANNEX_A
[20:26]
xdarklightmy provider uses freqs between 122MHz and 442MHz [20:27]
merbananxdarklight: do you have the ability to run the astrometa card with the windows drivers ?
and sniff the usb traffic
[20:29]
xdarklightmerbanan: ah, one step closer: frontend0 is the mn88473 demod, not frontend1
with the correct frontend I can also tune below 174MHz (which is the lower limit in rtl2832.c)
[20:30]
merbananxdarklight: but does it work ? [20:31]
cropefrequency limits are tuner specific
but many times those are just set ~170-860 MHz in demod driver as in real life DVB-T frequency allocations are on that
[20:32]
xdarklightmerbanan: not yet, this is the first time I see the dvb-demod-mn88473-01.fw firmware message
crope: is your webserver down currently? http://palosaari.fi/linux/v4l-dvb/firmware/MN88473/01/
[20:35]
cropexdarklight: works for me [20:36]
merbananworks here also [20:36]
xdarklightindeed, works via VPN to my server
yay, LOCK :)
ok, so with dvbv5-zap it's working fine now
[20:37]
crope[DVBC] FREQUENCY = 274000000 MODULATION = QAM/256 INVERSION = OFF SYMBOL_RATE = 6875000 INNER_FEC = NONE DELIVERY_SYSTEM = DVBC/ANNEX_A
just add single entry to scan file and do dvbv5-scan. it creates channel file for you
usually single working mux is enough as all the rest neighbour muxes are got from that working one NIT tables
[20:41]
xdarklightcrope: yes, got it - dvbv5-zap is working fine now, but vlc still reports "cannot setup TS demultiplexer: Invalid argument" [20:43]
merbananxdarklight: I posted a patch on the linuxtv mailinglist, please test it if you still think the error is the pid filter stuff [20:43]
xdarklightmerbanan: I had to rebase your patch manually as it didn't apply (that's why it's not upstream yet) [20:45]
merbananI just sent a patch, please test the patch if you test the code at all [20:45]
xdarklightmerbanan: https://patchwork.linuxtv.org/patch/34358/ <-this one seems to be missing the rtl2832_slave_ts_ctrl bit, this is my rebased version: https://paste.kde.org/pa79sqlen [20:48]
merbananlooks like my rebased patch also [20:52]
xdarklightmerbanan: dev->slave_ts = 1; <-in your patch that line is inside rtl2832_pid_filter_ctrl (which looks suspicious to me)
in your original patch that line was in rtl2832_enable_slave_ts, which is now replaced by rtl2832_slave_ts_ctrl (which not only allows enabling, but also disabling slave TS')
[20:57]
merbananyeah, that is not correct :/ [21:03]
paHi! anyone with a dvb-s2 card aligned to Hotbird 13E in here at this time? :-) [21:05]
merbananxdarklight: do you have the energy to update/test the patch and send it upstream ? [21:05]
xdarklightmerbanan: sure, just maybe not tonight (will continue tomorrow) [21:06]
merbananxdarklight: the rtl2832_slave_ts_ctrl() should handle the dev->slave_ts parameter on it's own [21:06]
***Rondom has quit IRC (Remote host closed the connection) [21:07]
merbananie the rtl2832_init() hunk should be removed [21:07]
xdarklightmerbanan: any reason for removing the rtl2832_init hunk? I know that bool defaults to false, but this way it's easier to read (personal preference though) [21:10]
merbananxdarklight: do whatever is more clear, I just mean that rtl2832_slave_ts_ctrl() should control it also and not just only enable like my original patch did [21:11]
xdarklightokay [21:15]
cropejust add flag and set its value inside rtl2832_slave_ts_ctrl(). then select used PID filter according to that flag
when flag is set use slave ts pid filter and when flag is not se use normal pid-filter
[21:17]
xdarklightcrope: yep, merbanan already prepared that - this is my updated version which hooks into rtl2832_slave_ts_ctrl https://paste.kde.org/pa79sqlen
I'll test it tomorrow morning
[21:18]
cropenow it uses always normal pid filter, so if you are using pid filters for mn88473 slave demod it does not work as wrong filter is used [21:19]
.... (idle for 16mn)
pait's funny how in all IRC there's nobody else using dvb-s2 :D [21:35]
iivepa: you are asking your question in a wrong way. E.g. somebody might have dvb-s2 and dish with a motor, that is currently not pointing to that satellite.
pa: you should actually ask your real question...
(btw, i don't have any dvb-s)
[21:49]
pahm.. that's right
iive, well the real question is:
i have a skystar s2 card, with the liplianin drivers, which works wonderfully (e.g., even better than on windows with proprietary drivers)
BUT
there is ONE (only one) specific transponder on Hotbird that i cannot scan
i can scan and tune on windows
but not on linux with liplianin drivers
other DVB-S2 transponders work
this one somehow doesnt
and the problem is that it is not even found
now, since other transponders with the same symbol rate and codec and whatnot works just fine
i wanted to find someone with perhaps another dvb-s2 card able to tune that transponder, scan it with kaffeine, and hand me over the sqlite database containing the binaries of the channel
and see if with that one i can tune the channel
[21:54]
iiveby database, you mean the list of transponders? [21:58]
paiive, kinda long story.thats why i wasnt asking the right question
iive, no, kaffeine actually stores something more into sqlite
some binary stuff that the satellite transmits
i don't fully know the specs, so i donno what that is
[21:58]
iivenetwork information table? [21:59]
papossibly..
but i know the transponder params
[21:59]
iivewhat are the params of the missing transponder? [21:59]
palike frequency, polarization, symbol rate, FEC, etc
so
moment
i dig it up
iive, S2 12475500 H 29900000 3/4 AUTO 8PSK
i tried also to step around that frequency (between 12475 and 12476), to change the rolloff
but nothing
[22:00]
iivehave you tried with stepping the symbol rate? [22:05]
pabut for example i have no problem in scanning and tuning S2 12437000 H 29900000 3/4 AUTO 8PSK
hm not
but it's documented 29900000 iirc
[22:05]
iivethe symbol rate could be off by a little [22:06]
pahm
i can try
thanks
although.. iirc these were the params spitted by progdvb too
12475500 for example
(it was documented 12476)
but anyway
i will try to step the symbol rate :)
weird thing is: only kaffeine seems to have no problems with dvb-s2
everything else struggles
(mplayer, vlc, etc)
[22:06]
iive, so that's what happens
http://codepad.org/Q2FZDkWM
stepping the symbol rate
it can tune around the symbol rate i wrote
but it has problems finding the channels
i also tried w_scan (i think)
it also didnt find the channels
and actually kaffeine is the only soft who was able to at least tune 12437 (the other S2 transponder i was mentioning)
[22:20]
iivei guess tuning succeeded mean it was able to get a lock.
the timeout however means that it probably gets only broken data.
try with another fec, or set it on auto.
[22:24]
pai tried 2/3
i can try on AUTO (is it possible?)
[22:25]
iivetry and see
btw, you may try to use the "working" SR as base and do some stepping at the frequency.
frequency and SR are controller by clocks and they could be off. That's why tuners and demodulator have automatic fine-tuning.
however testing for perfect match takes time, and sometime the driver doesn't give enough time to the hardware.
[22:26]
paso i tried to AUTO the FEC. apparently it's supported. but the result is the same
so i tried to use the working SR and stepping the frequency already
but do you mean to step both?
together?
[22:28]
iivekeep the "working" SR [22:29]
paok, then i did the test already
is there maybe some timeout i can change in the driver?
i mean i have the source so i guess i could try
btw i tried also the driver for the SS-S2 that is in the 4.4? kernel
and that can't tune ANY S2 transponder O_o
[22:30]
iivefor that maybe the real developers could answer :} [22:36]
pa:-) [22:37]
..... (idle for 22mn)
well so, after all those tests, my last hope was to make someone else tune the channel with kaffeine, and use that database to try to tune it here :-) [22:59]
iivebtw, that frequency is not at the edge of the supported freq, is it?
i mean, you probably have transponders with higher and with lower freq.
[23:06]

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