| --- | Log | opened Mon Jan 22 00:00:48 2007 |
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| 01:10 | <visit0r> | kormoc: so my find_meta.py should do the following: get the video dir/file to find metadata for as an argument. If metadata found (by scanning a .nfo for imdb id or somehow other), return successfully without printing out anything, otherwise, print a list of number: title pairs for interacting with the user in php |
| 01:11 | <kormoc> | hrm, how to indicate if there was 0 matches found? |
| 01:11 | <visit0r> | kormoc: then the find_meta.py can be called with additional argument (in addition to the video file), the id |
| 01:11 | <visit0r> | kormoc: I can print out "No metadata found" |
| 01:11 | <kormoc> | that would work fine |
| 01:11 | <visit0r> | kormoc: or some other fixed string |
| 01:12 | [~] | kormoc nods |
| 01:12 | <kormoc> | yeah, that all sounds good |
| 01:12 | <visit0r> | kormoc: anyways, the find_meta.py inserts the data to MythDB if it finds it, overwrites old data only if forced with a switch (which your php probably wants to use) |
| 01:13 | [~] | kormoc nods |
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| 01:18 | <visit0r> | kormoc: oh yes, 3rd motivation for .metadata is that when you move the video/dir around, metadata in MythVideo does not get lost |
| 01:18 | [~] | kormoc nods |
| 01:19 | <kormoc> | wonder how orphaned metadata files should be handled. |
| 01:20 | <kormoc> | cause if they are .file, most people won't see them |
| 01:20 | <visit0r> | no they are not, they are [filenamebody].metadata or video.metadata for DVDs and "video rip folders" |
| 01:20 | <visit0r> | dvd-rip folders, I meant |
| 01:20 | <kormoc> | ahh, kk |
| 01:24 | <hads> | visit0r: How does .metadata help when you shift the original file? Doesn't that have the same problem (unless the user shifts the metadata file too obviously). |
| 01:27 | <visit0r> | hads: surely, but when you move the whole dir, the metadata comes along automatically |
| 01:28 | <hads> | True, if the user moves directories rather than files :) |
| 01:29 | <visit0r> | yep |
| 01:29 | <kormoc> | Readonly shares are going to have fun with it too |
| 01:29 | <hads> | Yeah, like my video share :) |
| 01:29 | <visit0r> | yep, that's why I'm going to implement the "insert to MythDB directly" switch |
| 01:29 | <hads> | Also, I'm anal and don't like other files in with my videos :) |
| 01:30 | <visit0r> | well I already have the subtitle files so it doesn't irritate me so much :) |
| 01:30 | <hads> | True, I have one subtitle file but Myth doesn't seem to read it - I haven't bothered to figure it out yet. |
| 01:31 | <kormoc> | heh, I'm a fan of embedded subs, like MVK files can do |
| 01:31 | <hads> | Yeah, that's cooler. |
| 01:31 | <visit0r> | hads: it has to be named similarly e.g. foobar.sub |
| 01:32 | <visit0r> | hads: with foobar.avi |
| 01:32 | <hads> | visit0r: Yeah, it's the same .srt from memory. I'm not really worried about it yet, I don't like that movie anyway :) |
| 01:33 | <visit0r> | heh |
| 01:34 | <hads> | Amarok does something interesting with music files - ATF I believe it's called - inserting a UID into the file and tracking it that way. |
| 01:36 | <visit0r> | yep, was thinking about the same thing |
| 01:37 | <visit0r> | basically it's a hash which is also stored in the file also |
| 01:37 | <visit0r> | then refer to that has instead of the file name |
| 01:37 | <visit0r> | in DB metadata tables |
| 01:37 | <kormoc> | hads, music files have areas dedicated to meta data, alas, video files don't |
| 01:37 | <visit0r> | kormoc: yep, but we could also use a hash to refer to the file instead, as they don't change like mp3s do due to ID3 |
| 01:38 | <hads> | kormoc: Yeah, unfortunate, but ^^ what he said |
| 01:38 | <kormoc> | yeah, assuming myth is going to be the only thing browsing the files |
| 01:38 | <hads> | Unfortunately video files are large and take a long time to hash |
| 01:39 | <hads> | kormoc: Why would it matter if something else is browsing the files? |
| 01:40 | <kormoc> | hads, ooh, never mind |
| 01:40 | <kormoc> | hads, I thought you ment rename them to a uuid |
| 01:40 | <hads> | Ah, no way! :) I don't always use Myth to watch mine so that would be uncool |
| 01:41 | <visit0r> | hads: yep, of course we could hash only, let's say 10 blocks in several places in the file |
| 01:41 | <hads> | visit0r: Good thinking. Obviously your brain is working faster than mine. |
| 01:42 | <visit0r> | hads: not my idea, unfortunately ;-) |
| 01:42 | <hads> | I think some sort of auto-tracking would be nicer than any other method. |
| 01:42 | <visit0r> | ? |
| 01:43 | <hads> | (as in the hashing type deal) I'd be happy to collaborate on something like that (I can do Python and PHP, not C unfortunately) |
| 01:43 | <hads> | auto-tracking as in it doesn't matter if the file gets moved around. |
| 01:43 | [~] | kormoc nods |
| 01:43 | <kormoc> | that would be sweet |
| 01:44 | <kormoc> | would solve a lot of people's complaints |
| 01:48 | <visit0r> | hads: right, well it means hash instead of filename in DB pretty much... |
| 01:49 | <hads> | Yeah |
| 01:52 | <xris> | visit0r: re-scanning directories on view would be good, too... but with hashing, that could get slow |
| 01:53 | <xris> | of course, could probably seriously narrow things down by tracking filesize, too |
| 01:53 | [~] | kormoc nods |
| 01:54 | <xris> | of course, meta data files could help, too |
| 01:59 | <kormoc> | filesize + hash is my fav pick to be honest :P |
| 02:00 | <xris> | yeah. |
| 02:00 | <xris> | meta data files are mainly for the initial data import. |
| 02:04 | <xris> | visit0r: you'd still probably want to store a "last known path" in the db.. *especially* for when the backend starts being able to stream video files. You'd need to know where to go looking for the file. |
| 02:06 | <hads> | Good point |
| 02:13 | <hads> | So, I'm just having a play... for hashing parts of a file, I could divide the filesize into 8 or somthing and then read x bytes, add them together and hash that. Sound reasonable or is there a better way? |
| 02:14 | [~] | kormoc ponders |
| 02:15 | <kormoc> | I'd be tempted to say that if you read say 256 bytes each time it'd give you a nice bit |
| 02:15 | <hads> | Yeah, that's about the amount I was thinking |
| 02:16 | <kormoc> | well, that gives you a a full frame each snag if the bitrate is under 2,880 kbps |
| 02:17 | <hads> | I'm just hacking together a script to check out how fast it is and such. |
| 02:17 | <kormoc> | which should be fine |
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| 02:45 | <hads> | OK, that took just under 3 minutes to hash 200GB in 651 files on a P3 900 with the data mounted over NFS |
| 02:46 | <hads> | including printing the output to the terminal, which wouldn't slow it down much |
| 02:47 | <hads> | Oh, and over wireless. |
| 02:47 | <hads> | So it's not going to get too much slower. |
| 02:51 | <hads> | 45 seconds on my Core 2 duo box with 100Mbit wired to the same NFS |
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| 02:56 | <slaine_> | Is it possible to passively cool a Core 2 Duo box ? |
| 02:56 | <slaine_> | CPU I should say, you'd obviously need case fan |
| 03:00 | <xris> | slaine_: wrong channel |
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| 03:00 | <slaine_> | xris, Why, this is home of mythtv |
| 03:00 | <slaine_> | and most people would run that in some sort of htpc, so I would have thought it relevant. Oh, and you've buggered off |
| 03:01 | <visit0r> | slaine_: check the topic |
| 03:01 | <slaine_> | Hmmm |
| 03:02 | [~] | slaine_ frowns |
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| 05:05 | <stuarta> | gbee: what sort of funky issues were you getting with those mythmusic changes? |
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| 05:13 | <gbee> | didn't see them personally - reverted it locally as soon as I heard, but people were getting failed autoexpiry, recordings which never ended, unable to play back recordings |
| 05:13 | <stuarta> | hmmm... |
| 05:13 | <gbee> | backend or frontend hanging or losing connectivity |
| 05:14 | <gbee> | see Otto's email to the dev list just now, also Robin Gilks email "Backend hangups in r12594" |
| 05:15 | <stuarta> | yeah i did. |
| 05:15 | <gbee> | xris, GreyFoxx and a guy called wylie all saw problems |
| 05:16 | <gbee> | so all round, not good |
| 05:16 | <stuarta> | no, not good. |
| 05:16 | <stuarta> | i'll eyeball the patch later and see if there's anything i can see |
| 05:17 | <gbee> | I'm probably overlooking the obvious |
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| 05:22 | <stuarta> | the changes to output.cpp look suspicious |
| 05:22 | <stuarta> | in that the complete set of listeners isn't notified. |
| 05:24 | <gbee> | heh - missed the "object = nextListener();" within the loop |
| 05:24 | [~] | stuarta slaps gbee with a trout |
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| 05:25 | <stuarta> | needs a DispatchToAllListeners() or equivalent |
| 05:25 | [~] | gbee passes the slap onto eskil |
| 05:26 | [~] | stuarta slaps gbee with the code review trout |
| 05:26 | [~] | gbee takes that one on the chin |
| 05:26 | <stuarta> | :) |
| 05:27 | <gbee> | ok, I'll fix that when I've got a free moment and test it thoroughly this time |
| 05:28 | <stuarta> | another set of eyes always helps :) |
| 05:28 | <gbee> | yep |
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| 05:53 | <stuarta> | gbee: did you ever revert from 0.20-fixes? |
| 05:54 | <gbee> | yep |
| 05:54 | <gbee> | 12599 |
| 05:54 | <stuarta> | haven't got to the bottom of my email yet :) |
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| 09:25 | <MrGandalf> | janneg: Have you completed your merge of the newest ffmpeg? |
| 09:30 | <stuarta> | there was a note on one of the tickets to that effect. |
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| 09:50 | <janneg> | MrGandalf: unfortunately not. ffmpeg has major build system changes |
| 09:50 | <janneg> | s/major/big/ |
| 09:53 | <janneg> | and h264 playback isn't faster |
| 10:04 | <MrGandalf> | ah, I see |
| 10:04 | <MrGandalf> | that sucks.. oh well |
| 10:26 | <Chutt> | i'd want to do the merge.. it's tricky in places, since we have a bunch of local changes. |
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| 10:41 | <janneg> | Chutt: I'm almost finished but I won't commit it |
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| 13:32 | <eskil> | gbee, I found out some of the id3 tag craziness. Writing the id3v2 tag would still leave any existing id3v1 tag at the end of the file and unmodified, and most tools shortcut by first looking for a v1 tag. |
| 13:33 | <gbee> | could explain the problems I was having |
| 13:36 | <eskil> | gbee, yeah, very annoying. I'll submit a patch next time I have a clean tree. |
| 13:37 | <eskil> | gbee, about ticket 2557 (sigsegv in music)... |
| 13:37 | <gbee> | spotted the problem |
| 13:38 | <eskil> | gbee, what was it ? |
| 13:39 | <gbee> | the change in output.cpp |
| 13:39 | <eskil> | Yeah I saw your comment, but didn't quite get it. |
| 13:39 | <eskil> | Are you saying that it shouldn't notify all listeners anymore ? |
| 13:39 | <gbee> | wasn't handling all the listeners - the original iterates through them all, the patch doesn't |
| 13:40 | <gbee> | well tbh stuarta pointed that out |
| 13:40 | <eskil> | The patch calls MythObservable::dispatch, which should iterate over them. |
| 13:40 | <gbee> | haven't had time yet to look over it |
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| 13:41 | <gbee> | eskil: if that's the case, then it's not the problem ;) |
| 13:42 | <eskil> | gbee, yeah I don't think that's the culprit. |
| 13:42 | <gbee> | seemed credible at the time stuarta mentioned it, but I didn't double check |
| 13:43 | <eskil> | gbee, maybe the extra locking is causing havoc. |
| 13:43 | <stuarta> | evening |
| 13:44 | <eskil> | gbee, you should know better than anyone else to not trust people called Stuart. |
| 13:44 | [~] | stuarta hides |
| 13:45 | <gbee> | I seem to recall noting that dispatch handled the iteration when I first looked at the patch - but I'd forgotten |
| 13:45 | <gbee> | when I have some time I'll play around with it, right now I'm busy with work |
| 13:46 | <eskil> | Yeah, just thought I mention it while you were here. |
| 13:46 | [~] | eskil too has to work (= lunch...) |
| 13:46 | <gbee> | stuarta: nothing to worry about, just the changes in output.cpp aren't so obviously to blame |
| 13:47 | <stuarta> | fair enough. i was lacking source code to use as cross examination material when I found that. |
| 13:47 | <stuarta> | it just looked very suspicious. |
| 13:48 | <gbee> | yeah, well I didn't bother to check the source either and it sounded like a good reason :) |
| 13:49 | <gbee> | I just wasn't remembering that MythObservable::dispatch handles notifying the listeners |
| 13:50 | <gbee> | all the listeners, that is |
| 13:53 | <gbee> | eskil: not sure how the locking could be to blame, unless it's creating delays which cause other areas to hit timeouts |
| 13:54 | <gbee> | but I could be talking a lot of rubbish - should get back to what I was doing |
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| 13:58 | <cmcgee> | Hello all |
| 13:59 | <cmcgee> | I was wondering if anyone has had any experience trying to performance optimize their mythtv systems? |
| 14:00 | <gbee> | cmcgee: #mythtv-users |
| 14:00 | <cmcgee> | gbee: Sorry |
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| 14:21 | <tkooda> | can the development version of myth record from more than one ATSC channel (on the same frequency) at the same time? |
| 14:21 | <GreyFoxx> | no |
| 14:22 | <tkooda> | does myth use 3rd party binary to tune ntsc/atsc tuners, or it's own internal source? |
| 14:22 | <GreyFoxx> | it's own internal source |
| 14:25 | <tkooda> | I wrote this tiny app a few days ago (as a POC, but I use it daily), that might be of interest to any myth devs here: http://devsec.org/software/dvb-pids/dvb-pids-tune-0.1.c (just tunes a dvb card to a fequency and sets pes_filter's for 1 or more pids (so I can dump multiple atsc chans at once)) |
| 14:25 | <tkooda> | ..although I'm certain that the myth devs know how to do the same task already. |
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| 14:28 | <janneg> | tkooda: getting the data from the card is simple. the hard part is to integrate it into the mythtv framework |
| 14:29 | <janneg> | but mythtv will support it soonish |
| 14:31 | <tkooda> | janneg, yah, I speculated the hurdle was well after the adding of the pes_filters.. -I noticed a hastle or two in my own stuff; in trying to sanely tie the proper pid streams in the ts back to a sane channel name, etc |
| 14:31 | <tkooda> | I'm getting sick of not having the scheduling so I'll probably give myth another whirl soon |
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| 15:38 | <janneg> | configure is properly merged. mpegts playback has some issues. only the first playback works |
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| 16:03 | <janneg> | eskil, gbee: Re #2557. I would bet that it is a deadlock |
| 16:05 | <eskil> | janneg, you think ? |
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| 16:06 | <stuarta> | quite possible |
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| 16:07 | <Snow-Man> | Chutt: The array's rebuilding. |
| 16:07 | <eskil> | I kinda doubt that. The lock is held while traversing and calling QApplication::postEvent, which shouldn't lead to a call back into mythobservable. |
| 16:07 | <xris> | Snow-Man: cool |
| 16:08 | <Chutt> | Snow-Man, did you get the guy to replace it? |
| 16:08 | <eskil> | Of course, when locks are added and things break... deadlock does seem like a plausible cause... |
| 16:08 | <janneg> | eskil: a deadlock is a good explanation for the errors |
| 16:09 | <Chutt> | the guy sent an email like 15 minutes ago, that was quick :p |
| 16:09 | <Snow-Man> | Chutt: yeah |
| 16:10 | <Snow-Man> | Chutt: It's all replaced and whatnot. |
| 16:10 | <Chutt> | cool |
| 16:10 | <Chutt> | thanks |
| 16:10 | <Snow-Man> | np. It only took like 10 minutes once I showed up. :) |
| 16:10 | <Snow-Man> | It'll probably be overnight before the rebuild is done tho. |
| 16:10 | <Chutt> | heh |
| 16:10 | <xris> | Snow-Man: just make sure they send the old drive back. the support guys hate it when people don't |
| 16:10 | <bsjeep> | any reason why my .iso playback with Internal player broke with svn/trunk from last week? |
| 16:10 | <Snow-Man> | xris: He said it's alrady in the box |
| 16:11 | <xris> | cool |
| 16:11 | <bsjeep> | or maybe two weeks ago? |
| 16:11 | <bsjeep> | Anyone seen any bug submits on that recently? |
| 16:12 | <bsjeep> | 2nd Q, anyone know offhand where the popup menu for done watching, delete? save? etc is in code? |
| 16:14 | <eskil> | janneg, I guess, I honestly know, having not used anything but MythMusic.... |
| 16:15 | <jwestfall> | deadlock can be caused by MainServer::customEvent dispatching an event |
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| 16:24 | <eskil> | jwestfall, but wouldn't MainServer::customEvent get called from the QT event thread, and not from MythObservable::dispatch ? |
| 16:27 | <jwestfall> | not always |
| 16:27 | <jwestfall> | i had a stack trace where it was direct |
| 16:27 | <xris> | Chutt: ever give much thought to implementing different queries (like the scheduler) for different versions of mysql. Was talking with kormoc just now and it seems that adding subqueries (mysql 5+) can speed the scheduler query up by a factor of 10 or more. |
| 16:28 | <jwestfall> | easiest was to test is to just gdb attach when things go crazy |
| 16:28 | <jwestfall> | and bt it |
| 16:29 | <eskil> | jwestfall, true. |
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| 17:35 | <Chutt> | xris, get some actual numbers and post it to the developers list |
| 17:38 | <xris> | ok. |
| 17:42 | <xris> | he apparently also has some index-size changes that speed things up. I'll get a diff and list of changes and test them out on my own system, too |
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| 18:48 | <janneg> | ah, I found the issue with broken playback after playback in the ffmpeg merge |
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| 19:48 | <briand> | xris: I'm still running analysis, so I don't have hard/fast numbers or specifics yet.. but there seems to be some room for improvement in the SQL queries in general... my analysis software (mysqlard) indicates 21 "slow queries", several full-table scans, etc. |
| 19:51 | <xris> | briand: not surprising |
| 19:51 | <briand> | ;) |
| 19:51 | <xris> | the scheduler query is almost assuredly the worst |
| 19:52 | <briand> | dunno... |
| 19:52 | <xris> | well, the worst that runs on a regular basis |
| 19:52 | <briand> | but, definitely a *big* spike in the graph once daily.... ;) |
| 19:52 | <briand> | ..assuming my internet connection is up. ;) |
| 19:52 | <xris> | only once? you must not do much scheduling. |
| 19:52 | <briand> | oh, i do plenty of scheduling |
| 19:52 | <briand> | but the big spike seems to be mythfilldatabase |
| 19:53 | <briand> | the slow queries may be in the scheduler, tho |
| 19:53 | <xris> | oh, mfdb *would* be slow, yes. |
| 19:53 | <briand> | that's the full-table scan, methinks... |
| 19:53 | <briand> | if you're interested in peeking at the analysis, i'll pvt you the url |
| 19:54 | <xris> | maybe later when I'm not at work |
| 19:55 | <xris> | what's the name of the software you use to get that? |
| 19:55 | <briand> | sure, it's there, running whenever comcast decides to make my internet connection active. (they apparently think ISP means Intermittent Service Provider) |
| 19:55 | <briand> | mysqlar |
| 19:55 | <briand> | link on the page, actually.. and really easy to set up/install |
| 19:56 | <briand> | you just create an account for it in mysql, and it logs into the server and checks the stats |
| 19:57 | <xris> | that's cool |
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| 19:58 | <briand> | it's really a low cpu usage tool that seems to give lots of friendly info/advice... |
| 19:58 | <briand> | you do need to run it for a bit before it's analysis is valid, tho.. (they warn you of this, actually, on the results page) |
| 19:59 | <xris> | yeah, like any stats tool. could be really handy for work, and/or for a friend who is admining a mud with some query problems. |
| 20:00 | <briand> | :nod: |
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| 20:00 | <briand> | I happened across it while playing around with rrdtool, mrtg, et al |
| 20:03 | <xris> | annoying. doesn't seem to compile for me with the newer mysql libraries |
| 20:04 | <briand> | :( |
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| 20:07 | <xris> | wtf. builds on another system just fine |
| 20:08 | <briand> | what distro are you using? |
| 20:09 | <xris> | fc5 |
| 20:09 | <xris> | with non-fedora mysql packages |
| 20:09 | <xris> | make that fc4 |
| 20:09 | <xris> | fc5 has mysql 5 packages by default |
| 20:11 | <briand> | i'm on fc5 here... hmm. |
| 20:13 | <xris> | yeah, compiles in fc5 |
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| 20:18 | <xris> | ok, upgraded mysql. looks like it was just an issue with 5.0.22 |
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| 20:24 | <briand> | hmm. well, i think you'll like that tool.. pretty nifty, i thought |
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| 20:24 | <trend> | hello |
| 20:25 | <trend> | is the bttv the best linux driver for tv tuners? |
| 20:25 | <trend> | i am looking to buy a new pci tv tuner.. and need some help narrowing it down.. but it looks like bttv drivers are the most used.. so i should stick with a card that supports them |
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| 20:27 | <briand> | it may or may not be, but this is probably not the best channel to ask that question on... check the topic |
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| 20:28 | <trend> | hmm.. ok, I will ask in mythtv-users.. just thought i might get a better answer here.. anyways.. thanks for the heads up :) |
| 20:44 | <Snow-Man> | Chutt: rebuild finished. |
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| 21:44 | <jwestfall> | hey xris |
| 21:44 | <xris> | ? |
| 21:45 | <jwestfall> | sorry one sec |
| 21:47 | <jwestfall> | can you double check the 'Check for duplicates in' code for 'Only New Episodes' in mythweb |
| 21:48 | <xris> | what about it? |
| 21:48 | <jwestfall> | its setting dupin to 4, which doesnt look right since its 0x10 in the c++ code |
| 21:48 | <xris> | odd |
| 21:48 | <jwestfall> | all my 'only new episodes' end up selecting all episodes |
| 21:49 | <xris> | define('dupsin_newepisodes', 0x10); |
| 21:51 | <xris> | dunno. if I set "check in all" and "only new episodes" I get a value of 31, which is correct |
| 21:52 | <jwestfall> | hrm |
| 21:52 | <jwestfall> | let me make sure i am fully updated |
| 21:52 | <jwestfall> | doing a select in the database they all return 4 |
| 21:52 | <xris> | weird |
| 21:53 | <jwestfall> | modules/tv/tmpl/lite/detail.php: if ($schedule->dupin == 4) |
| 21:53 | <xris> | lite doesn't work yet |
| 21:54 | <xris> | I'm surprised it works at all |
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| 21:55 | <xris> | I'm still in the middle of an interface overhaul.. need to finish that before I migrate all changes to the lite template. |
| 21:56 | <jwestfall> | ah |
| 21:56 | <jwestfall> | i must have had a bad version |
| 21:56 | <jwestfall> | sorry to bug you |
| 22:06 | <xris> | no, it's the correct/current version. |
| 22:06 | <xris> | lite is just not to be trusted at the moment. |
| 22:12 | <jwestfall> | dunno something else must have happened to |
| 22:12 | <jwestfall> | not like mythweb went and re-setup all my recordings |
| 22:13 | <jwestfall> | not sure how they all became 4 |
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| --- | Log | closed Tue Jan 23 00:00:30 2007 |