Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
Hi, juste a note to say that we also have teletext subtitles in France. I have tried vdr 1.7.4 which works perfectly except for the ttxt subs. I have to hold my final migration to 1.7.4 until I get ttxtsubs working again ... Regards 2009/3/2 Luca Olivetti l...@ventoso.org En/na Luca Olivetti ha escrit: En/na Klaus Schmidinger ha escrit: On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Strange, I see them a little bit early right now (not much) but it's worse with recordings. Maybe it's just Poirot, but I swear I have to use teletext subtitles with those recordings. Definitely it's Poirot: today recording has no dvb subtitles at all (though they're advertised), but the teletext subtitles are there. Guess I'll have to look Sherlock Holmes instead ;-) Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Luca Olivetti ha escrit: En/na Klaus Schmidinger ha escrit: On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Strange, I see them a little bit early right now (not much) but it's worse with recordings. Maybe it's just Poirot, but I swear I have to use teletext subtitles with those recordings. I uploaded a short (14M bytes) clip with the subtitles out of sync. http://personales.ya.com/ventoso/poirot.tar Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On Sat, 28 Feb 2009 19:29:07 +0100 Luca Olivetti l...@ventoso.org wrote: [Subtitles out of sync] En/na Klaus Schmidinger ha escrit: On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Strange, I see them a little bit early right now (not much) but it's worse with recordings. Maybe it's just Poirot, but I swear I have to use teletext subtitles with those recordings. What sort of output device are you using? Maybe xine or whatever your decoder is has a problem that Klaus' hardware decoder doesn't? I've also noticed that A/V sync problems are much more likely and/or severe with recordings than live TV. Maybe the switch to TS recording will correct that. Additionally, it seems to me that old programmes, especially films, are the most prone to A/V sync problems. -- TH * http://www.realh.co.uk ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Tony Houghton ha escrit: On Sat, 28 Feb 2009 19:29:07 +0100 Luca Olivetti l...@ventoso.org wrote: [Subtitles out of sync] En/na Klaus Schmidinger ha escrit: On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Strange, I see them a little bit early right now (not much) but it's worse with recordings. Maybe it's just Poirot, but I swear I have to use teletext subtitles with those recordings. What sort of output device are you using? Maybe xine or whatever your decoder is has a problem that Klaus' hardware decoder doesn't? I thought of that (I'm using both xine and a dxr3), but that's the only channel where I have dvb subtitles out of sync. In fact, with networked xine, teletext subtitles are usually quite bad in recordings (that's the reason at the time I patched the plugin to delay them), while I never had problems with dvb subtitles (except for the above mentioned itv3). I've also noticed that A/V sync problems are much more likely and/or severe with recordings than live TV. Maybe the switch to TS recording will correct that. Additionally, it seems to me that old programmes, especially films, are the most prone to A/V sync problems. No, I don't have any problem with A/V sync. Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On 26.02.2009 12:08, Magnus Hörlin wrote:
Hi. I've just made the switch to S2API and vdr-1.7.4 and it seems to work
quite well both with xineliboutput (with vdpau) and streamdev now. The thing
I'm missing is teletext subtitles and I don't know how hard it would be to
update it for ts. Has anyone started on this? What countries other than
Sweden and Finland use teletext subtitles frequently? I understand that it
is not one of your (Klaus) top priorities, but do you have access to any
channels that use it? Otherwise it's probably even lower on the priorities
list.
I believe the German ZDF channel broadcasts both ttxt and DVB subtitles.
One feature request for VDR: a setup option to record all pids, including
all audio and teletext pids. That way I guess it would be easier to develop
a plugin for it (and I'd be happy to send you some recordings).
It already records all audio pids.
I wouldn't want to record the ttxt pid just because of a few bytes for
subtitles. Here's a copy of a message I just sent to Rolf Ahrenberg
privately, after he sent me a suggested patch to record the ttxt pid:
--
...teletext subtitles are a thing from the past, the normal way
of broadcasting subtitles should be DVB subtitles. I hardly think a
DVD player would be able to handle teletext subtitles (or am I wrong here?).
I would prefer a solution where the teletext subtitles are converted into
DVB subtitles during recording (and also during live viewing). Then the
rest of VDR would only have to handle one single subtitle format.
I suggest you first write a class that accepts a teletext TS data
stream and outputs a DVB subtitle TS stream. Then we can see how
this can be inserted into the recording chain and during live viewing.
Something like
class cTtxtToDvbSubtitles {
...
public:
cTtxtToDvbSubtitles(int Page); // the teletext page containing the subtitles
void PutTtxtTs(uchar *Data, int Length); // put a single TS packet of ttxt
data
// into the converter
uchar *GetDvbTs(int Length); // get one or more TS packets containing a
complete
// DVB subtitle page
...
};
What we also need is a way of detecting whether there are any ttxt subtitles,
and on which page they are broadcast (haven't looked into the DVB standard
about this yet, but I believe every broadcaster uses a different page).
Once we have these facilities, this could well go into the core VDR.
--
Klaus
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Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On 28.02.2009 11:42, Klaus Schmidinger wrote: What we also need is a way of detecting whether there are any ttxt subtitles, and on which page they are broadcast (haven't looked into the DVB standard about this yet, but I believe every broadcaster uses a different page). The teletext standard defines a teletext subtitle flag that any subtitle page should have set. Specifically, its the C6 flag, placed at byte 11 bit 8 of line 0 of the teletext page. (see cTxtReceiver::DecodeTXT of OSDTeletext on how to get that flag.) However, I don't know how consequently this flag is used. The C5 (Newsflash) flag also sets a transparent background, and could be used alternatively. Other transparent pages could also falsely set the C6 flag. It also may be a good idea to interpret different teletext pages as different subtitles, in case a channel has more than one subtitle page. Cheers, Udo ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Klaus Schmidinger ha escrit: ...teletext subtitles are a thing from the past, the normal way of broadcasting subtitles should be DVB subtitles. I hardly think a DVD player would be able to handle teletext subtitles (or am I wrong here?). While I agree that dvb subtitles are usually better than teletext subtitles, there are cases when it isn't so. For example, itv3 (shoot me, but I like Poirot) broadcasts both teletext and dvb subtitles, but the dvb subtitles are ~6 seconds early, so they're unusable. Btw, a 20€ dvb-t set-top box handles teletext subtitles just fine. Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On 28.02.2009 15:54, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: ...teletext subtitles are a thing from the past, the normal way of broadcasting subtitles should be DVB subtitles. I hardly think a DVD player would be able to handle teletext subtitles (or am I wrong here?). While I agree that dvb subtitles are usually better than teletext subtitles, there are cases when it isn't so. For example, itv3 (shoot me, but I like Poirot) broadcasts both teletext and dvb subtitles, but the dvb subtitles are ~6 seconds early, so they're unusable. Have you ever inquired why they don't fix this? Klaus ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Klaus Schmidinger ha escrit: On 28.02.2009 15:54, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: ...teletext subtitles are a thing from the past, the normal way of broadcasting subtitles should be DVB subtitles. I hardly think a DVD player would be able to handle teletext subtitles (or am I wrong here?). While I agree that dvb subtitles are usually better than teletext subtitles, there are cases when it isn't so. For example, itv3 (shoot me, but I like Poirot) broadcasts both teletext and dvb subtitles, but the dvb subtitles are ~6 seconds early, so they're unusable. Have you ever inquired why they don't fix this? No, I'm using teletex subtitles instead ;-) I'm not supposed to be receiving uk channels (in theory the beam is focused on the uk), so I cannot really complain. Besides, I'm not knowledgeable enough to be sure it's their problem or vdr problem (after all, if it didn't work with the freeview set-top boxes, they'd surely fix it, wouldn't they?) OTOH I never had problems with dvb subtitles on the bbc channels (other than vdr not recognizing they're there in recordings, while they automatically show in live view). Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On 28.02.2009 16:38, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: On 28.02.2009 15:54, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: ...teletext subtitles are a thing from the past, the normal way of broadcasting subtitles should be DVB subtitles. I hardly think a DVD player would be able to handle teletext subtitles (or am I wrong here?). While I agree that dvb subtitles are usually better than teletext subtitles, there are cases when it isn't so. For example, itv3 (shoot me, but I like Poirot) broadcasts both teletext and dvb subtitles, but the dvb subtitles are ~6 seconds early, so they're unusable. Have you ever inquired why they don't fix this? No, I'm using teletex subtitles instead ;-) I'm not supposed to be receiving uk channels (in theory the beam is focused on the uk), so I cannot really complain. Besides, I'm not knowledgeable enough to be sure it's their problem or vdr problem (after all, if it didn't work with the freeview set-top boxes, they'd surely fix it, wouldn't they?) OTOH I never had problems with dvb subtitles on the bbc channels (other than vdr not recognizing they're there in recordings, while they automatically show in live view). Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. Klaus ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Klaus ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] Anyone working on ttxtsubs for 1.7.4?
En/na Klaus Schmidinger ha escrit: On 28.02.2009 18:35, Luca Olivetti wrote: En/na Klaus Schmidinger ha escrit: Please send me the channels.conf line of itv3 - I'd like to take a look at this myself. ITV3;BSkyB:10906:vC56M2O0S0:S28.2E:22000:3348:3349=eng,3350=NAR:2373:0:10260:2:2054:0 Just took a look, and they are perfectly in sync. Strange, I see them a little bit early right now (not much) but it's worse with recordings. Maybe it's just Poirot, but I swear I have to use teletext subtitles with those recordings. Bye -- Luca ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
