S2API pctv452e stb0899 simples2apitune

linux-dvb Dominik Kuhlen 3 participants 6 messages Oct 18, 2008 Media (V4L/DVB)

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Dominik Kuhlen

author

2008-10-18 12:06 UTC #0 lore raw

Hi,

Attached patch makes the pct452e working for me with S2API based on changeset 9263
http://mercurial.intuxication.org/hg/s2-liplianin

- mostly cleanup (remove commented code)
- proper frequency reporting for stb0899 (dvb-s and dvb-s2)
- fast and always lock for DVB-S (up to 8MHz frequency offset allowed) (only tested with symrates: 22 and 27.5)
- DVB-S2 checked 19.2E 11915 H 27500 only (I cant test others)
- PCTV452e LED green: FE open orange: FE closed
does the TT S2 3600 (3650CI) also have this led and is it attached to the same GPIO?

What I still dislike is the very long blocking if no signal is found or wrong parameters were specified. This could be easily avoid: if there were a signal locking would be quite fast ;)
But i haven't had time to search for the solution to speed up...

also attached simples2apitune which is same as simpledvbtune but for S2API

happy testing,
Dominik

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Igor M. Liplianin

2008-10-18 12:27 UTC #1 lore raw

В сообщении от 18 October 2008 15:05:42 Dominik Kuhlen написал(а):

Quoted 20 lines

Hi,
Attached patch makes the pct452e working for me with S2API based on changeset 9263
http://mercurial.intuxication.org/hg/s2-liplianin
- mostly cleanup (remove commented code)
- proper frequency reporting for stb0899 (dvb-s and dvb-s2)
- fast and always lock for DVB-S (up to 8MHz frequency offset allowed) (only tested with symrates: 22 and 27.5) - DVB-S2 checked 19.2E 11915 H 27500 only (I cant test others)
- PCTV452e LED green: FE open orange: FE closed
does the TT S2 3600 (3650CI) also have this led and is it attached to the
same GPIO?
What I still dislike is the very long blocking if no signal is found or wrong parameters were specified. This could be easily avoid: if there were a signal locking would be quite fast ;) But i haven't had time to search for the solution to speed up...

Quoted 4 lines

also attached simples2apitune which is same as simpledvbtune but for S2API
happy testing,
Dominik

Hi Dominik

I will test it today with s2-3200 and give you feedback And thank you.

Igor

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Faruk A

2008-10-18 14:08 UTC #2 lore raw

In reply to Dominik Kuhlen

Hi Dominik!

Quoted 1 line

- fast and always lock for DVB-S (up to 8MHz frequency offset allowed) (only tested with symrates: 22 and 27.5)

yes channel lock is very fast and it always locks, i had no problem locking on DVB-S with 30000 symrate.

Quoted 1 line

- DVB-S2 checked 19.2E 11915 H 27500 only (I cant test others)

it locks fine on 13E DVB-S2 channels (27500)

Quoted 2 lines

- PCTV452e LED green: FE open orange: FE closed
does the TT S2 3600 (3650CI) also have this led and is it attached to the same GPIO?

The LED is working on TT-S2-3650CI

Quoted 1 line

also attached simples2apitune which is same as simpledvbtune but for S2API

simples2apitune is not working for me on both DVB-S and DVB-S2.

[faruk@archer simples2apitune]$ ./simples2apitune -f 10975 -p h -s 27500 using '/dev/dvb/adapter0/frontend0' as frontend
frontend fd=3: type=0 name=STB0899 Multistandard
ioclt: FE_SET_VOLTAGE : 1
Low band
set tone: 0
set symbol rate: 27500000 Sym/s
set frequency: 1225000 kHz
do tune....
tuning qpsk failed

Dominik are you too facing packet losses from TS?

Thanks
Faruk

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Dominik Kuhlen

author

2008-10-18 15:15 UTC #3 lore raw

Hi,

Quoted 12 lines · Faruk A

Hi Dominik!
Quoted 1 line
- fast and always lock for DVB-S (up to 8MHz frequency offset allowed) (only tested with symrates: 22 and 27.5)
yes channel lock is very fast and it always locks, i had no problem locking on DVB-S with 30000 symrate.
Quoted 1 line
- DVB-S2 checked 19.2E 11915 H 27500 only (I cant test others)
it locks fine on 13E DVB-S2 channels (27500)

Quoted 8 lines

Quoted 2 lines
- PCTV452e LED green: FE open orange: FE closed
does the TT S2 3600 (3650CI) also have this led and is it attached to the same GPIO?
The LED is working on TT-S2-3650CI
Quoted 1 line
also attached simples2apitune which is same as simpledvbtune but for S2API
simples2apitune is not working for me on both DVB-S and DVB-S2.

Oh yes, I haven't set the return value...
please find attached a new version which has that issue fixed

Quoted 11 lines

[faruk@archer simples2apitune]$ ./simples2apitune -f 10975 -p h -s 27500 using '/dev/dvb/adapter0/frontend0' as frontend
frontend fd=3: type=0 name=STB0899 Multistandard
ioclt: FE_SET_VOLTAGE : 1
Low band
set tone: 0
set symbol rate: 27500000 Sym/s
set frequency: 1225000 kHz
do tune....
tuning qpsk failed

yes, the return value of set_qpsk_channel() is random :(

Quoted 2 lines

Dominik are you too facing packet losses from TS?

Not in the streams i have tested so far. how often and on which channels do you get errors? what is the SNR for them?

Quoted 4 lines

Thanks
Faruk

Thanks for the feedback,
Dominik

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Faruk A

2008-10-18 18:33 UTC #4 lore raw

Quoted 4 lines

Quoted 1 line
Dominik are you too facing packet losses from TS?
Not in the streams i have tested so far. how often and on which channels do you get errors? what is the SNR for them?

I get image distortions on all channels.
I have tested with vdr, kaffeine and szap-s2 + mplayer/vlc/xine.

Is the same problem we had before back in February/March and then you fixed in the final release.

[faruk@archer szap-s2]$ ./szap-s2 -r -p -V -c ~/.vdr/channels.conf -n 115 reading channels from file '/home/faruk/.vdr/channels.conf' zapping to 115 'FOLKLOR TV;EUTELSAT':
delivery DVB-S, modulation QPSK
sat 0, frequency 11304 MHz V, symbolrate 30000000, coderate auto, rolloff auto vpid 0x0dc1, apid 0x0dc2, sid 0x0005
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'

status 1f | signal 011e | snr 0080 | ber 00000000 | unc fffffffe | FE_HAS_LOCK
status 1f | signal 0122 | snr 007f | ber 00000000 | unc fffffffe | FE_HAS_LOCK
status 1f | signal 011e | snr 007e | ber 00000000 | unc fffffffe | FE_HAS_LOCK
status 1f | signal 0122 | snr 0081 | ber 00000000 | unc fffffffe | FE_HAS_LOCK
status 1f | signal 0122 | snr 0080 | ber 00000000 | unc fffffffe | FE_HAS_LOCK

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Faruk A

2008-10-18 20:00 UTC #5 lore raw

In reply to Dominik Kuhlen

Quoted 4 lines

Quoted 1 line
Dominik are you too facing packet losses from TS?
Not in the streams i have tested so far. how often and on which channels do you get errors? what is the SNR for them?

Never mind that, i think there is something wrong with my device. I have the same problem in windows xp and vista.
The channels are working fine on my set top box (Samsung DSR 9500 VIA CI) which i haven't used in months
since i bought the tt-s2-3650.

Faruk

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