Re: [linux-dvb] How to use scan-s2?
In message <1233017978.3061.2.ca...@palomino.walls.org>, Andy Walls wrote:
LO
>On Mon, 2009-01-26 at 22:31 +0200, Alex Betis wrote:
>>
>> On Mon, Jan 26, 2009 at 10:20 PM, Darron Broad
>> wrote:
>> In message
>> ,
>> Alex
>> Betis wrote:
>> >
>> >On Mon, Jan 26, 2009 at 7:32 PM, Darron Broad
>> wrote:
>> >
>> >> In message
>> ,
>> >> Alex Betis wrote:
>> >>
>> >> lo
>> >>
>> >>
>> >> >
>> >> >The bug is in S2API that doesn't return ANY error message
>> at all :)
>
>Aside from Darron's observation, doesn't the result field of any
>particular S2API property return with a non-0 value on failure?
>
>(Sorry, I missed the original thread on the S2API return values.)
The actual tuning occurs within a thread and not when issuing
the tuning IOCTL. The only means to determine whether tuning
worked or not is inspection of the frontend events generated
within that thread. So, if the params are wrong, the IOCTL
can fail, but that's not the problem Alex is experiencing
where the params are correctly formed yet not supported in
the driver.
I did look at a means to expose supported params a while ago
but it's ugly so I haven't gone forward with it.
Bye
--
// /
{:)==={ Darron Broad
\\ \
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
In message , Alex
Betis wrote:
hi
>On Mon, Jan 26, 2009 at 10:20 PM, Darron Broad wrote:
>
>> In message ,
>> Alex
>> Betis wrote:
>> >
>> >On Mon, Jan 26, 2009 at 7:32 PM, Darron Broad wrote:
>> >
>> >> In message > >,
>> >> Alex Betis wrote:
>> >>
>> >> lo
>> >>
>> >>
>> >> >
>> >> >The bug is in S2API that doesn't return ANY error message at all :)
>> >> >So the tuner is left locked on previous channel.
>> >> >
>> >> >There are many things that can be done in driver to improve the
>> situation,
>> >> >but I'll leave it to someone who has card with cx24116 chips.
>> >>
>> >> When tuning the event status should change to 0 and if
>> >> it stays that way the tuning operation failed.
>> >>
>> >> If you read the frontend status directly then you will
>> >> retrieve the state of the previous tuning operation
>> >> that suceeded.
>> >
>> >What do you call an event status and what direct status?
>> >
>> >scan-s2 uses FE_READ_STATUS that always success and indicates channel
>> lock,
>> >even if cx24116 driver returned an error due to AUTO parameters.
>>
>> refer to
>>
>> FE_SET_FRONTEND:
>>
>> http://www.linuxtv.org/docs/dvbapi/DVB_Frontend_API.html#SECTION00328000
>>
>> and,
>>
>> FE_GET_EVENT
>>
>> http://www.linuxtv.org/docs/dvbapi/DVB_Frontend_API.html#SECTION00321
>>
>Ohh, ok. So there is a solution for that after all. Thanks!
>Unfortunately no one gave me a clear answer on that when I asked about it
>last time.
>Seems to work for stb0899, waiting for confirmation on cx24116.
Okay. If there is a fault I will investigate.
>Darron, looks you're the right person to ask:
>How can I retrieve the REAL tuned parameters from the driver?
>Looks like using FE_GET_PROPERTY returns cached properties that were issued
>with FE_SET_PROPERTY before that.
At present that's all there is. With the cx24116 it is
actually possible to retrieve the actual FEC when requesting
FEC_AUTO for DVB-S but it's not implemented. Such a feature
though could be driver dependant in any case so probably
unreliable. I have not looked.
cya
--
// /
{:)==={ Darron Broad
\\ \
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
On Mon, 2009-01-26 at 22:31 +0200, Alex Betis wrote: > > On Mon, Jan 26, 2009 at 10:20 PM, Darron Broad > wrote: > In message > , > Alex > Betis wrote: > > > >On Mon, Jan 26, 2009 at 7:32 PM, Darron Broad > wrote: > > > >> In message > , > >> Alex Betis wrote: > >> > >> lo > >> > >> > >> > > >> >The bug is in S2API that doesn't return ANY error message > at all :) Aside from Darron's observation, doesn't the result field of any particular S2API property return with a non-0 value on failure? (Sorry, I missed the original thread on the S2API return values.) Regards, Andy -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
In message , Alex
Betis wrote:
>
>On Mon, Jan 26, 2009 at 7:32 PM, Darron Broad wrote:
>
>> In message ,
>> Alex Betis wrote:
>>
>> lo
>>
>>
>> >
>> >The bug is in S2API that doesn't return ANY error message at all :)
>> >So the tuner is left locked on previous channel.
>> >
>> >There are many things that can be done in driver to improve the situation,
>> >but I'll leave it to someone who has card with cx24116 chips.
>>
>> When tuning the event status should change to 0 and if
>> it stays that way the tuning operation failed.
>>
>> If you read the frontend status directly then you will
>> retrieve the state of the previous tuning operation
>> that suceeded.
>
>What do you call an event status and what direct status?
>
>scan-s2 uses FE_READ_STATUS that always success and indicates channel lock,
>even if cx24116 driver returned an error due to AUTO parameters.
refer to
FE_SET_FRONTEND:
http://www.linuxtv.org/docs/dvbapi/DVB_Frontend_API.html#SECTION00328000
and,
FE_GET_EVENT
http://www.linuxtv.org/docs/dvbapi/DVB_Frontend_API.html#SECTION00321
l8r
--
// /
{:)==={ Darron Broad
\\ \
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
> > As an owner of cx24116 device you should know that it doesn't allow any AUTO > > settings, so you have to create an INI file with all parameters explicitly > > specifed (FEC, modulation, rolloff). > > > > I believe this is the main problem. > > > > Also, please take the latest scan-s2, I've done some changes especily for > > cx24116 cards. > > Thanks for the hint, I will try to investigate this more. > I didn't know this because the old scan from dvb-apps have seemed to > find channels even with this simpler Satellite scan data that comes > withing dvb-apps for Astra. > > Could you or somebody else give me an example from the satellite conf file > where all those fields are filled in? I am little confused from those > parameters. please use the latest scan-s2 with this ini files http://www.vdr-settings.com/download/channels/CLyngsatSP.tar.bz2 > How about the channel data generated by the scan-s2 or scan with "-o vdr" > option. Should I also make some changes to those manually? no > I think there must however be a bug either in scan-s2 or hvr-4000 S2API > driver, if it's will start scanning even if the given input data is > invalid. I mean that I think the driver and S2API should "hide away" the > differences between different S/S2 chipsets in a way that same data given > by the user space application should be acceptable for any card/s2-driver. with hvr4000 and ini files from http://www.vdr-settings.com/download/channels/CLyngsatSP.tar.bz2 and with the latest scan-s2 I could scan dvb-s transponders without any problem I didn't try to scan dvb-s2 yet Goga -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
In message , Alex Betis wrote: lo > >The bug is in S2API that doesn't return ANY error message at all :) >So the tuner is left locked on previous channel. > >There are many things that can be done in driver to improve the situation, >but I'll leave it to someone who has card with cx24116 chips. When tuning the event status should change to 0 and if it stays that way the tuning operation failed. If you read the frontend status directly then you will retrieve the state of the previous tuning operation that suceeded. If this the above is not true then it needs investigation. cya -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
As an owner of cx24116 device you should know that it doesn't allow any AUTO settings, so you have to create an INI file with all parameters explicitly specifed (FEC, modulation, rolloff). I believe this is the main problem. Also, please take the latest scan-s2, I've done some changes especily for cx24116 cards. Thanks for the hint, I will try to investigate this more. I didn't know this because the old scan from dvb-apps have seemed to find channels even with this simpler Satellite scan data that comes withing dvb-apps for Astra. Could you or somebody else give me an example from the satellite conf file where all those fields are filled in? I am little confused from those parameters. How about the channel data generated by the scan-s2 or scan with "-o vdr" option. Should I also make some changes to those manually? I think there must however be a bug either in scan-s2 or hvr-4000 S2API driver, if it's will start scanning even if the given input data is invalid. I mean that I think the driver and S2API should "hide away" the differences between different S/S2 chipsets in a way that same data given by the user space application should be acceptable for any card/s2-driver. Is the bug in the scan-s2 not handling the error message from the driver about using "AUTO" values, or is the bug in the driver not "correctly" returning the error when all data needed is not set? Mika -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
On Sun, 25 Jan 2009, Alex Betis wrote: > On Sun, Jan 25, 2009 at 6:29 PM, Hans Werner wrote: > > > On Sun, Jan 25, 2009 at 4:41 PM, Hans Werner wrote: > > > > > If you have a stb0899 device, don't forget to add "-k 3". > > > > Oh. Can someone say what's different about the stb0899 here, > > > > and how -k 3 helps ? > > > stb0899 driver (or maybe the chip?) has some buffers inside that are not > > > reset between tunnings. > > > In that case messages from *previous* channel will arrive after the > > > tunning > > > to new channel is complete. > > > Those messages will create a big mess in the results, such as channels > > > without names, duplicate channels on different transponders. > > > -k option specifies how many messages should be ignored before processing > > > it. I couldn't think of a more elegant way to ignore messages from > > > previously tuned channel. I use "-k 3" by myself, but after playing > > around > > > with "-k 2" saw that its also working. "-k 1" was still not enough. > > OK, thanks, I will check if I see that problem. Which card(s) > > did you see this with? > I'm aware only about Twinhan 1041 and TT-3200 based stb0899 cards. Both have > the same problem. This may be going typically off-topic, but I do experience similar artifacts with some STV0299 cards (looks superficially alike; I don't know), which I'll toss out here just for giggles. It turns out I have three if not four such stv0299 cards, and I either experience `scan' difficulties or recording issues, or nothing. First off, for reference: a PCI SkyStar2 card that gets priority for recordings, using a 2.6.14-ish kernel that I'm in the long slow process of planning to update on that production machine. When making two recordings separated by time from the same transponder, often the second recording will have a few video frames left over from the previous recording. This appears in my quality-control as video frames with differing timestamps as well as errors when run through `mplayer' video codec ffmpeg12, but timing data remains intact (I can `dd' away the first second or more and get a flawless partial transport stream). This is not a problem when I switch between transponders to make the second recording. And it can be many hours between recordings from the same transponder, yet the leftover data still remains. I've never noticed that this affects `scan' which changes transponders; that in itself seems to be enough to lose the buffered data. This is only a minor concern as the first few frames of confused data are almost certainly disposable, as a fraction of a second in the padding leading up to the content of interest. As exhibit number two, where I have had problems with regular `scan' seeing data from the previous transponder and causing problems getting current data, another stv0299-based device, the Opera-1 USB-connected tuner. I have *never* seen any recordings made from this device contain frames from an earlier tuning session, though. As far as `scan' tuning goes, I would regularly see previous ``phantom'' channels appearing, combined with zero-value PIDs for channels on the intended current transponder. At least until recently; my latest scans have been flawless, either due to hacks I added to that `scan' or to kernel updates on that test machine. Exhibit C, m'lud, will be -- again on the 2.6.14-ish kernel machine, but this time connected via USB 1.1 -- an early Nova-S device. Apart from bandwidth issues due to the usb1 interface, I've never noticed problems with stale packets when recording from either the same or a different transponder. I do have other issues which may be due to the age of the kernel, but `scan' also has not had problems. Now with exhibit IV, again I see problems similar to those experienced with leftover packets, but which appear to be compounded by the internal mangling of the transport stream components into a proprietary- yet-open delivery stream. This device is the ttusb- dec DEC3000-s, of unknown-based-on-kernel-code heritage, though I may have taken it apart long ago and written the results on a long-since hidden drive. This device is connected via USB1, and is incapable of delivering more than an MPEG2 video and mp2 audio stream to a recording, making it useless for multiple audio, teletext, AC3, H.264, or PMT tables to start. It also internally converts the transport stream into the PVA format, with side-effects such as that the timestamps do not match the original transport stream components, cycling after some 40 000 secs rather than the 90 000-ish seconds delivered in the streams from other devices. Recordings from this device all-too-often would have timing problems as well as leftover data from a previous recording. (Whether from same or different transponder, I cannot say. I added a hack-workaround to my recordings to tune briefly a different txp, then tune back. Sometimes it worked. Often with high load, nothing could help.) Sometimes the timi
Re: [linux-dvb] How to use scan-s2?
I also run it with "-5". I personaly don't like to use network advertisements (-n switch) since I don't trust them. I use a full frequency filled INI file. Hi It might be that the signal is not the best possible for me as I can only scan about 500 channels with scan by using a command: ./scan -o vdr -a 1 Astra-19.2E In Astra-19.2E I have single line: #Astra 1KR (19.2E) - 10743.75 H - DVB-S (QPSK) - 22000 5/6 - NID:1 - TID:1051 S 10743750 H 2200 5/6 However, once scanned the channels like eurosport, arte, skynews, cnn international shows up just fine with vdr-1.6.0. But if I try to use the same Astra-19.2E file with scan-s2, it can only find the channels from frequency 10743750 if I have stopped the "scan" after it had found those channels... If I let the scan to run in the end to other frequencies, then scan-s2 can not find anything... ./scan-s2 -a 1 -5 -n Astra-19.2E Propably Klaus Schmidinger reported something related with his TT-3200 in http://www.mail-archive.com/v...@linuxtv.org/msg08493.html I have however hvr-4000. To prove how it goes, here is the tuning log for 4 different runs. 1) scan when allowed it to swich to other frequence after tuning channels from 10643750 2) scan-s2 run after that (no channels found) 3) scan when stopping it immediately after it has found channels from 10643750 4) scan-s2 after that (now it found correctly all 5 channels that are repoted to be in 10543750, but failed to tune from other freqs) 1) [lam...@tinka scan]$ ./scan -a 1 Astra-19.2E scanning Astra-19.2E using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0' initial transponder 10743750 H 2200 5 tune to: 10743:h:0:22000 DVB-S IF freq is 993750 0x 0x7031: pmt_pid 0x ARD -- EinsExtra (running) 0x 0x7032: pmt_pid 0x ARD -- EinsFestival (running) 0x 0x7033: pmt_pid 0x ARD -- EinsPlus (running) 0x 0x7034: pmt_pid 0x ARD -- arte (running) 0x 0x7035: pmt_pid 0x ARD -- Phoenix (running) Network Name 'ASTRA' tune to: 12692:h:0:22000 DVB-S IF freq is 2092250 0x045d 0x32c9: pmt_pid 0x03e9 ORF -- ORF1 (running, scrambled) 0x045d 0x32ca: pmt_pid 0x03ea ORF -- ORF2 (running, scrambled) 0x045d 0x32cb: pmt_pid 0x03f3 ORF -- ORF2 W (running, scrambled) 0x045d 0x32cc: pmt_pid 0x03f4 ORF -- ORF2 N (running, scrambled) 0x045d 0x32cd: pmt_pid 0x03f5 ORF -- ORF2 B (running, scrambled) 0x045d 0x32ce: pmt_pid 0x03f6 ORF -- ORF2 O (running, scrambled) 0x045d 0x32cf: pmt_pid 0x03f7 ORF -- ORF2 S (running, scrambled) 0x045d 0x32d0: pmt_pid 0x03f8 ORF -- ORF2 T (running, scrambled) 0x045d 0x32d1: pmt_pid 0x03f9 ORF -- ORF2 V (running, scrambled) 0x045d 0x32d2: pmt_pid 0x03fa ORF -- ORF2 St (running, scrambled) 0x045d 0x32d3: pmt_pid 0x03fb ORF -- ORF2 K (running, scrambled) 0x045d 0x32d4: pmt_pid 0x03fc ATV+ -- ATV+ (running, scrambled) 0x045d 0x32d5: pmt_pid 0x03eb ORF -- HITRADIO OE3 (running) 0x045d 0x32d6: pmt_pid 0x03ec ORF -- ORF2E (running) 0x045d 0x32d9: pmt_pid 0x03ef arena -- Bundesliga 5 (not running, scrambled) 0x045d 0x32da: pmt_pid 0x03f0 arena -- Bundesliga 6 (not running, scrambled) 0x045d 0x3390: pmt_pid 0x04b0 ORF -- AlphaCrypt (running) 0x045d 0x339a: pmt_pid 0x04ba ORS -- Siemens Download (running) 0x045d 0x33a4: pmt_pid 0x ORF -- VESTEL OAD2 (running) 0x045d 0x33ae: pmt_pid 0x04ce ORF -- VESTEL DOWNLOAD (running) ^CERROR: interrupted by SIGINT, dumping partial result... dumping lists (25 services) ... 2) [lam...@tinka scan-s2]$ ./scan-s2 -a 1 /home/lamikr/dvb/apps/dvb-apps_20090126/util/scan/Astra-19.2E API major 5, minor 0 scanning /home/lamikr/dvb/apps/dvb-apps_20090126/util/scan/Astra-19.2E using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0' initial transponder DVB-S2 10743750 H 2200 5/6 AUTO AUTO initial transponder DVB-S 10743750 H 2200 5/6 AUTO AUTO --> Using DVB-S2 tune to: 10743:hC56S1:S0.0W:22000: DVB-S IF freq is 993750 WARNING: >>> tuning failed!!! tune to: 10743:hC56S1:S0.0W:22000: (tuning failed) DVB-S IF freq is 993750 WARNING: >>> tuning failed!!! --> Using DVB-S tune to: 10743:hC56S0:S0.0W:22000: DVB-S IF freq is 993750 WARNING: >>> tuning failed!!! tune to: 10743:hC56S0:S0.0W:22000: (tuning failed) DVB-S IF freq is 993750 WARNING: >>> tuning failed!!! ERROR: initial tuning failed dumping lists (0 services) Done. 3) [lam...@tinka scan]$ ./scan -a 1 Astra-19.2E scanning Astra-19.2E using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0' initial transponder 10743750 H 2200 5 tune to: 10743:h:0:22000 DVB-S IF freq is 993750 0x 0x7031: pmt_pid 0x0064 ARD -- EinsExtra (running) 0x 0x7032: pmt_pid 0x00c8 ARD -- EinsFestival (running) 0x 0x7033: pmt_pid 0x012c ARD -- EinsPlus (running) 0x 0x7034: pmt_pid 0x0190 ARD -- arte (running) 0x 0x7035: pmt_pid 0x01f4 ARD -- Phoenix (running) ^X^CERROR: interrupted by SIGINT, dumping partial result... dumping lists (5 services) EinsExtra:10743:
Re: [linux-dvb] How to use scan-s2?
> I have run the scan using a TeVii S650. Now I have run then same using > my SkyStar HD and I got 1467 services. > > So there is something not working using the TeVii S650... have you any duplicates channels in channels list after of scan with tevii ? could you have a look on debug logs of cx24116 during of scan ? have you any messages like these unsupported rolloff selected (3) Goga -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
> On Sun, Jan 25, 2009 at 4:41 PM, Hans Werner wrote: > > > > If you have a stb0899 device, don't forget to add "-k 3". > > > > Oh. Can someone say what's different about the stb0899 here, > > and how -k 3 helps ? > > > Since I've added it, I'll try to defend it :) > > stb0899 driver (or maybe the chip?) has some buffers inside that are not > reset between tunnings. > In that case messages from *previous* channel will arrive after the > tunning > to new channel is complete. > Those messages will create a big mess in the results, such as channels > without names, duplicate channels on different transponders. > -k option specifies how many messages should be ignored before processing > it. I couldn't think of a more elegant way to ignore messages from > previously tuned channel. I use "-k 3" by myself, but after playing around > with "-k 2" saw that its also working. "-k 1" was still not enough. > > The proper way is to have an option to reset that buffer in the driver > after > tunning. > Since I don't know how it can be done and how it will affect tunning of > channels for viewing, I didn't want to go that way and solve it in > scan-s2. > > Regards, > Alex. OK, thanks, I will check if I see that problem. Which card(s) did you see this with? Hans -- Release early, release often. Pt! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
> If you have a stb0899 device, don't forget to add "-k 3". Oh. Can someone say what's different about the stb0899 here, and how -k 3 helps ? Thanks, Hans -- Release early, release often. Pt! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] How to use scan-s2?
Hi, Jens Krehbiel-Gräther schrieb: > Artem Makhutov schrieb: > >> Hello, >> >> I am wondering on how to use scan-s2. >> >> When running scan-s2 like this I am only getting 13 services: >> >> scan-s2 -a 2 -o zap /usr/share/dvb/dvb-s/Astra-19.2E > channels.conf >> >> when running >> >> scan-s2 -a 2 -n -o zap /usr/share/dvb/dvb-s/Astra-19.2E > channels.conf >> >> then I am getting 152 services. >> >> When running the old dvbscan application I am getting 1461 services: >> >> dvbscan -a 2 -o zap /usr/share/dvb/dvb-s/Astra-19.2E > channels.conf >> >> >> Have I missed a parameter in scan-s2 or what else could be the problem? >> >> Thanks, Artem >> > > > Hi Artem! > > I had the same "problem".When add no options I am only getting a few > services. > When I add the "-n" option I get some more services but all services I > only get, when I am adding "-n -5". > > the "-5" means: > multiply all filter timeouts by factor 5 for non-DVB-compliant section > repitition rates > > The scan takes a long time then, but I get 1476 services (Astra 19.2). > My device is a Pinnacle PCTV 452e (USB). > Perhaps this switch is working with your device, too? > I just tried it out. It does not work :( I am getting 217 services now. So I am still missing ~1200 services. I have run the scan using a TeVii S650. Now I have run then same using my SkyStar HD and I got 1467 services. So there is something not working using the TeVii S650... Any ideas? Regards, Artem -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
