RE: [vdr] Problem with audio sync in playback
>> I tested with VDR 1.4.3 and test_av app included in 22623 test >> firmware package, with firmwares 261a, 261f, 2622 and that test version >> 22623. >> Everytime playback stuttered and lost a/v sync after scene change situation. >> >> So I think this is more like dvb firmware/driver problem than VDR problem. >> However this is very annoying. >I agree, this is not VDR problem but firmware. However, I don't know which >mailing > list is better to report this problem: vdr or dvb thus I've sent this here. My gut feeling is that these problems appeared around when AC3 bitstream out came into DVB firmware, and I think that was done by Werner Fink. I think he has kept knowledge by himself, so maybe he should be able fix the situation? http://www.linuxtv.org/download/firmware/ 2004-12-26 dvb-ttpci-01.fw-261d Changes by Werner Fink: - Implement AC3/DTS replay capability - Proper handling of OSD bitmap loading with timeouts - Set interpolated option of video decoder to reduce block noise on hard picture changes - FlushTS command fixes 2003-10-13 dvb-ttpci-01.fw-261b fixed distortions when switching channel while recording .. 2003-07-09 dvb-ttpci-01.fw-261a (this is the first new type of firmware(is it?), and was already tested by you) But this is a feeling, not a fact. So maybe older default firmware for old type of driver should be tested, I mean not dvb-ttpci* type of file, I mean Root & Dpram -files. ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Problem with audio sync in playback - maybe caused by ntpd stepping local clock?
On Tue, Oct 17, 2006 at 12:51:33AM +0200, martin wrote: > Not sure, if this may relate to your problem, but .. > > I use xine plugin and every once in a while I had a short interruption of > sound. Today I was tail-ing -f syslog for another reason and there was this > little glitch again! Just a very short interruption with no sound. I spent > several weekends to find out, why xine always tells me, that "fixing sound > card drift". I was p***ed by my hardware, but now I found out, what cause > the problem. It's my ntpd, that steps the clock on my VDR hardware. To fix > this, I now start ntpd with the "-x" option. > > For Reference from man ntpd: > -x Ordinarily, if the time is to be adjusted more than 128 ms, it > is stepped, not gradually slewed. This option forces the > time > to be slewed in all cases. Hmm - I've configured VDR to adjust the system time. Possibly this is causing the same problem. Should VDR doing the same as "ntpd -x"? Greetings, Bernd ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Problem with audio sync in playback
Tero Siironen wrote: > On 14.10.2006 23.20, "Pasi Juppo" <[EMAIL PROTECTED]> wrote: > >> This problem is yet to be fixed to my understanding. Now I have a good >> recording (one episode from Lost) where this happens very often. The >> problem seems to be related to situations where the scene fades black >> before new scene. There is something strange in those situations.. >> >> If someone has the knowledge/talent to start debugging the problem I can >> put the recording available for downloading. > > Well, I don't have knowledge for debugging, but I ran some tests. I took few > minutes crop from a recording of same episodes and tried it with different > AV7110 firmwares. (TT DVB-C FF 2.1 card) > > I tested with VDR 1.4.3 and test_av app included in 22623 test firmware > package, with firmwares 261a, 261f, 2622 and that test version 22623. > Everytime playback stuttered and lost a/v sync after scene change situation. > > So I think this is more like dvb firmware/driver problem than VDR problem. > However this is very annoying. I agree, this is not VDR problem but firmware. However, I don't know which mailing list is better to report this problem: vdr or dvb thus I've sent this here. Br, Pasi ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Problem with audio sync in playback
Tero Siironen wrote: > On 14.10.2006 23.20, "Pasi Juppo" <[EMAIL PROTECTED]> wrote: > >> This problem is yet to be fixed to my understanding. Now I have a good >> recording (one episode from Lost) where this happens very often. The >> problem seems to be related to situations where the scene fades black >> before new scene. There is something strange in those situations.. >> >> If someone has the knowledge/talent to start debugging the problem I can >> put the recording available for downloading. > > Well, I don't have knowledge for debugging, but I ran some tests. I took few > minutes crop from a recording of same episodes and tried it with different > AV7110 firmwares. (TT DVB-C FF 2.1 card) > > I tested with VDR 1.4.3 and test_av app included in 22623 test firmware > package, with firmwares 261a, 261f, 2622 and that test version 22623. > Everytime playback stuttered and lost a/v sync after scene change situation. > > So I think this is more like dvb firmware/driver problem than VDR problem. > However this is very annoying. > > The only way i know how to fix that is to run your FF card with some kind of software playback (ie; xine). I wish we had a version of firmware that didn't have this problem.. or at least a way for it to recover itself. Regards. ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Problem with audio sync in playback
On 14.10.2006 23.20, "Pasi Juppo" <[EMAIL PROTECTED]> wrote: > This problem is yet to be fixed to my understanding. Now I have a good > recording (one episode from Lost) where this happens very often. The > problem seems to be related to situations where the scene fades black > before new scene. There is something strange in those situations.. > > If someone has the knowledge/talent to start debugging the problem I can > put the recording available for downloading. Well, I don't have knowledge for debugging, but I ran some tests. I took few minutes crop from a recording of same episodes and tried it with different AV7110 firmwares. (TT DVB-C FF 2.1 card) I tested with VDR 1.4.3 and test_av app included in 22623 test firmware package, with firmwares 261a, 261f, 2622 and that test version 22623. Everytime playback stuttered and lost a/v sync after scene change situation. So I think this is more like dvb firmware/driver problem than VDR problem. However this is very annoying. -- Tero Siironen ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
