--- | Log | opened Mon Nov 26 00:00:10 2007 |
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01:38 | <axscode> | hi, do mythtv supports dvb input right? |
02:02 | <superm1> | wrong channel, please see /t |
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02:37 | <axscode> | oh yah, primary question, just developing on embeded platform |
02:37 | <axscode> | sorry for the question.. ill move somewhere else |
02:37 | <xris> | axscode: fyi, I answered your question in the correct channel |
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04:11 | <stuarta> | janneg: rewriting EIT is on my todo list too. |
04:11 | <stuarta> | we'll have to do the design part together... |
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06:08 | <justinh> | see there's plenty of comment about #4222 at svn.mythtv.org on the discussion list. er.. I mean in the trac comments |
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09:47 | <gbee> | anyone know where I can find some mpeg2 HD samples? The h.264 ones I've got refuse to work even though they were ok with earlier versions of trunk, I just need to grab some more HD screenshots of the OSD |
09:49 | <stuarta> | just transcode it. |
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10:01 | <gbee> | stuarta: didn't think of that :) |
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10:05 | <stuarta> | :) |
10:05 | <stuarta> | might take a while. |
10:06 | <gbee> | eww, why does mythtranscode want a profile number instead of a user friendly name |
10:08 | <gbee> | not that long, it was an 8 second sample :) |
10:10 | <gbee> | hey, this ain't bad - uses less space as mpeg4 than h.264, transcoding has probably deleted some datastreams which would account for that |
10:14 | <gbee> | 19Mb as h.264, 12Mb as Mpeg4 |
10:14 | <gbee> | 7Mb of data in 8 seconds of footage? that can't be right |
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10:15 | <stuarta> | i'd use ffmpeg to do the transcode |
10:15 | <stuarta> | that way you'll have full control over the bitrate etc. |
10:15 | <gbee> | mythtranscode worked well enough using an existing mpeg4 profile I'd setup |
10:16 | <gbee> | doesn't actually need to be a high quality bitrate since it's being downscaled to 1280x720 |
10:17 | <gbee> | the screenshots look just as good as they did against the original copy (when I was able to play it) |
10:19 | <stuarta> | nice :) |
10:22 | <gbee> | left is taken against the original, right against the transcoded version - http://miffteevee.co.uk/themes/metallurgy.html#OSDHD |
10:26 | <gbee> | just trying the same transcode profile on a 1.7Gb h264 sample |
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11:15 | <jk1joel> | so do most devs keep a stable setup for daily use and a svn setup for development and testing? or do most run the svn code "in production"? |
11:18 | <gbee> | I'd say most run svn |
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11:19 | <gbee> | I do, both from choice and the lack of hardware to test on (unless someone wants to pay for a development rig) |
11:20 | <jk1joel> | I don't know if I dare |
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11:21 | <bendailey> | jk1joel: I run svn on my main tv so I can help provide testing I rebuild about every other day and my wife uses the system daily |
11:21 | <justinh> | that's what my spare box is for :) |
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11:24 | <jk1joel> | bendailey: how often does your wife complain about something breaking from one build to the next? |
11:25 | <GreyFoxx> | jk1joel: I think most do run svn all the time |
11:25 | <GreyFoxx> | I update mine weekly for the most part unless something specific goes in I want to try |
11:26 | <bendailey> | jk1joel: I taught her how to press up on the keyboard and then enter which reruns the startx command fixing most of the crashes she sees |
11:26 | <bendailey> | jk1joel: I have about 1 major complaint every month or two |
11:27 | <jk1joel> | crashes are one thing... what about shows not recording, or a feature being broken? |
11:27 | <GreyFoxx> | jk1joel: It's down to this. Nothing is guaranteed |
11:27 | <GreyFoxx> | neither in a release or SVN |
11:28 | <GreyFoxx> | but developers use svn, so buggs are likely to get fixed faster |
11:28 | <bendailey> | jk1joel: I have to agree with GreyFoxx YMMV but I have only had 3 or so shows not record |
11:29 | <GreyFoxx> | And I've had none that weren't my fault |
11:29 | <bendailey> | I should clarify mine have only been because of hard drive fillup and not code problems |
11:30 | <jk1joel> | yeah, I get it, I'm just wondering how "stable" svn is, doing frequent updates. I think I'll stick with stable for my main setup and make a test setup for svn. Of course, once I notice some new feature that I can't live without in svn, that may all change. :) |
11:31 | <GreyFoxx> | svn tends to be very stable |
11:31 | <GreyFoxx> | just gets shaky when big merges happen but those settle out within days |
11:31 | <GreyFoxx> | just read the -dev list and -commits and you should be ok |
11:32 | <jk1joel> | so if I have a patch, should I just post it to the -dev list? or is there a better place for such things? |
11:32 | <GreyFoxx> | post patches to trac |
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11:34 | <jk1joel> | as a ticket? |
11:34 | <GreyFoxx> | yup |
11:35 | <jk1joel> | k. will do, thanks |
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11:59 | <justinh> | jk1joel: longest I've ran svn for was over a couple of days at LRL this year. didn't see any trouble at all |
11:59 | <justinh> | and that was on a backend serving 3 frontends (itself included) on an athlon800 |
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12:01 | <gbee> | I've not lost a recording in recent memory, I've also not seen a crash in a long time, svn tends to be stable, but you've got to watch the commits list and avoid upgrading immediately after a major change e.g. ffmpeg resync |
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12:01 | <justinh> | basically I think if you follow the recommendations about running SVN you'll be fine |
12:02 | <justinh> | when livetv was disabled for the rework, that caused a furore I seem to remember. I just laughed |
12:02 | <gbee> | without wanting to give the wrong impression, IMHO SVN is more stable and reliable than -fixes |
12:04 | <gbee> | you've just got to be prepared to update twice in a day if something does get broken in a commit, which happens from time to time (usually fixed pretty fast) |
12:04 | <justinh> | not that -fixes is in any way unreliable here |
12:04 | <justinh> | I really only ever upgrade when I want new features |
12:05 | <gbee> | no, fixes isn't unreliable, just that many bug fixes simply haven't made it back to -fixes from trunk |
12:05 | <justinh> | from my own PoV there's no feature I'm after other than multirec, but even then I can live without it |
12:05 | <justinh> | and that's not even in trunk yet :) |
12:07 | <jk1joel> | on trac, what's the difference between an enhancement and a patch? If my patch is for a proposed enhancement, which should I choose? |
12:07 | <justinh> | gbee: btw you planning on doing anything festive for your theme? I'm toying with an idea |
12:08 | <justinh> | jk1joel: a patch is just a patch. any changes to the code need to have patches attached to a ticket to be valid ;) |
12:08 | <justinh> | so I'd pick 'enhancement' |
12:09 | <jk1joel> | thanks |
12:15 | <gbee> | justinh: I thought I might, depends if I can come up with anything that looks good - last time I tried to make a website festive the results weren't great |
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12:17 | <tzanger> | good afternoon |
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12:18 | <tzanger> | is there anything out there for 0.20-fixes which tries to verify that a dvb-s card is actually tuned to the sat/transponder you're asking it to tune to? I'm having a bitch of a time with a 22khz switch |
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12:18 | <tzanger> | I was thinking of something in the signalmonitor code maybe |
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12:28 | <bradd> | FATAL: Error inserting ivtv (/lib/modules/2.6.22.9-61.fc6/kernel/drivers/media/video/ivtv/ivtv.ko): Unknown symbol in module, or unknown parameter (see dmesg) |
12:28 | <bradd> | any ideas? |
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12:33 | <dr_lulz> | bradd: #mythtv-users, and do what the errmsg suggest - dmesg|tail |
12:37 | <bradd> | i actually think ive figured it out |
12:37 | <bradd> | thanks |
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12:52 | <hasse> | hey, im trying to set up my remote control a hauppage pvr500 , but the irw command wont give any response ?? anyone |
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13:28 | <justinh> | anybody wanna try something out for me? made a new thing for glass-wide at www.mythtvthemes.co.uk/themes/animation.tar.gz - unpack in the glass-wide dir |
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13:47 | <gbee> | justinh: grabbing it now |
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13:49 | <justinh> | I've thought of a possible enhancement to the flipbook code but dunno if i'll be able to code it. make it periodic ;) |
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13:50 | <justinh> | unless it already _is_ and I missed it - in which case.. Duh! |
13:50 | <gbee> | so the animation folder goes in the directory, or the contents of the animation folder? |
13:51 | <justinh> | oh bum. |
13:51 | <justinh> | there should be a dir called animation. all the pngs go in there |
13:51 | <gbee> | no, that's right, just wasn't sure |
13:52 | <gbee> | I assume the animation stuff is already in the xml? |
13:52 | <justinh> | yeah. the base.xml should be there too |
13:53 | <gbee> | ahh, yeah missed that |
13:53 | <gbee> | looks ok, maybe a little fast |
13:53 | <justinh> | heh |
13:54 | <gbee> | I can see it becoming distracting :) |
13:54 | <gbee> | a little smaller too?, but I like the idea |
13:55 | <justinh> | any slower and it shows up how rushed it was ;) |
13:55 | <gbee> | hehe |
13:55 | [~] | gbee starts to feel seasick |
13:56 | <justinh> | I'll do some maths & see if making the horizton chrome line highlight would be efficient with padding in to make it less of a distraction |
13:56 | <justinh> | one thing it highlights here is that other stuff is stopping it |
13:56 | <gbee> | damn, looks like we had the same idea for the programme guide icon |
13:56 | <justinh> | makes it jerky from time to time |
13:57 | <justinh> | the flipbook stuff isn't really suitable for this kind of thing.. I'm still convinced of that |
13:57 | <justinh> | you don't notice it on mepo |
13:58 | <gbee> | the animation I did uses alpha |
13:58 | <justinh> | I'll never be struck on alphapulse |
13:58 | <gbee> | justinh: runs smoothly here |
13:59 | <gbee> | got a decent effect with the alpha, by using it to fade in/out a tinted layer I created a flashing backlighted button |
14:00 | <hendrixski> | Has anybody checked out this heliocreek thing? They're doing a "friendly fork" of mythtv for some commercial thing. |
14:00 | <gbee> | backlighted? backlit |
14:00 | [~] | hendrixski isn't sure that forks are "friendly" per se |
14:01 | <gbee> | hendrixski: a few people took a look, they weren't impressed with the quality of the code |
14:02 | <hendrixski> | gbee, oh |
14:02 | <hendrixski> | so then it's probably like a bunch of high school kids in Egypt or somethign? |
14:03 | <gbee> | hendrixski: they were cutting a lot of corners instead of doing thing properly, e.g. using lots of "sudo myscript.pl" and "sudo rm file" |
14:03 | <hendrixski> | yikes |
14:03 | <hendrixski> | well, companies do that when prototyping I guess |
14:04 | <hendrixski> | "throw one away, you will anyhow" sort of thing |
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14:05 | <hendrixski> | Did they at least have any good ideas (other than arabic keyboard support?) |
14:05 | <gbee> | I'd hope if they were just prototyping, that they wouldn't commit that code to a repository - if you do that then you are just as likely to forget it's there or decide that you can't be bothered to do it properly |
14:06 | <gbee> | hendrixski: that's as much as I can say, I've not looked at it myself, I'm not even interested in having a look |
14:06 | <hendrixski> | lol |
14:07 | <hendrixski> | do a lot of those kinds of things pop up? Where people branch mythtv like that? |
14:08 | [~] | hendrixski downloads the code to see what they were up to |
14:10 | <gbee> | hendrixski: not really, can only think of one another 'branch' - the one used by LinuxMCE |
14:11 | <hendrixski> | oh right, I remember hearing about them.... there was a lot of hype and then I never heard of it again |
14:11 | <janneg> | hendrixski: they submitted the arabac keyboard layout and support for right to left languages also as patches |
14:12 | <hendrixski> | hhhmmm... the heliocreek guys didn't take their code from SVN... they took it off of Ubuntu ... their Sourceforge SVN still has the debian/ directory, with the same patches |
14:12 | <gbee> | hendrixski: lots of people are impressed by linuxmce, but it's all style and no substance IMHO (style is stretching it a little) |
14:12 | <janneg> | couple of them are already merged |
14:12 | <hendrixski> | janneg, right, that's where I first read about them on the mailing lists |
14:12 | <janneg> | assuming both are the same |
14:12 | <gbee> | they are |
14:12 | <gbee> | some of their stuff is good - the bits they've submitted |
14:13 | <gbee> | the bits that have been quoted in here .... err |
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14:15 | <hendrixski> | hhhmmm, and the linuxMCE project doesn't seem to have much news lately. |
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14:31 | <hendrixski> | oh wow nice... they mapped out all of the database relationships using some program called schemaspy |
14:32 | <GreyFoxx> | Who did? |
14:32 | <hendrixski> | GreyFoxx, the guys from Heliocreek |
14:33 | <GreyFoxx> | ahhh ok, so it's not current, but shouldn't be massively different than latest svn |
14:33 | <dr_lulz> | wasnt that that mythtv fork with ultrabad code? |
14:33 | <jams> | yes |
14:33 | <GreyFoxx> | hehe yeah |
14:33 | <GreyFoxx> | or at least, some stuff was |
14:33 | <hendrixski> | who submitted the arabic language patch and are making a "friendly fork" of mythtv, with superbad code |
14:33 | <hendrixski> | yes |
14:33 | <GreyFoxx> | the stuff they submitted some stuff that's ok back to us |
14:34 | <hendrixski> | yeah, I just downloaded it and am taking a peek through it before I compile it |
14:34 | <hendrixski> | GreyFoxx, have you heard anything else about them? they're going to be doing something corporate with this from what I gather? |
14:34 | <GreyFoxx> | other than what I read on their main page nope |
14:35 | <hendrixski> | K |
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14:38 | <hendrixski> | well... I'm torn about what to do here.... some people are saying "bad code" but from what I've seen so far, it looks like great documentation |
14:39 | <hendrixski> | guess I gotta make a chroot and compile it to find out :-p |
14:43 | <justinh> | gbee: so I guess I've totally missed the point about alphapulse then.. it's not restricted to just static images? i.e. you can use it on buttons? |
14:44 | <justinh> | er.. I mean insofar as areas which are already in mythui |
14:45 | <gbee> | just restricted to imagetypes, have you got metallurgy installed? I can send you my example - though it would work with any theme I guess |
14:46 | <justinh> | not got a box with a recent trunk at the mo |
14:46 | <gbee> | could be used on menu buttons when I think about it, would just be a small change |
14:47 | <jams> | justinh- autoscreenshots of the settings screen is complete |
14:47 | <gbee> | justinh: I'll send you the images and the base.xml part, you can stick that in glass and see for yourself |
14:47 | <justinh> | nah I've just checked on a monitor (as opposed to over freenx) and the animation is still jumping on my athlon 2000xp.. though I don't use opengl |
14:47 | <justinh> | jams: wicked! |
14:48 | <justinh> | jams: how many shots in total then, for all the screens? |
14:48 | <jams> | let you know in five minutes when the current run is done. |
14:49 | <gnome42> | I've been debugging some pseudo recording corner case bugs and came across some buglets in that area. I've created three little patches at http://zeke.yi.org/mythtv/patches/recgroup Two good fixes and one minor cleanup. |
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14:49 | <jams> | crap it will be longer then that, forgot i deleted the menu screens, so I will need to run that as well |
14:49 | <gbee> | justinh: http://pastebin.ca/798375 and the images from - http://miffteevee.co.uk/themes/metallurgy/flashbutton.tar.gz |
14:50 | <gbee> | just stick that section in any base.xml and put the images in the theme directory |
14:51 | <justinh> | doh it must only work when opengl is enabled |
14:51 | <gbee> | ahh, yeah ... |
14:51 | <gbee> | :( |
14:53 | <justinh> | ugh those transitions look arse |
14:54 | <jams> | looks like 60 "settings" screen (without mythweather and zoneminder) |
14:56 | <justinh> | seems I have opengl enabled in hardware.. other gl stuff flies |
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14:57 | <justinh> | I like the alphapulse in that context, but I can't see myself using it |
14:57 | <MrGandalf> | Can someone tell me what arguments I should use for running mythfrontend under valgrind? |
14:57 | <jams> | according to my map, it should be 23 menu screens. |
14:58 | <justinh> | jams: and only mythweather & zoneminder missing? |
14:58 | <jams> | yeah |
14:58 | <justinh> | wonder where the heck I got over 150 from |
14:58 | <jams> | don't know |
14:59 | <justinh> | so long since I did that. was going to make a shot of every single screen for the wiki at one point |
15:00 | <justinh> | maybe I lost my place a few times & just bumped the number up to the nearest 10 |
15:00 | <justinh> | well time to get rid of the animation dir & revert base.xml |
15:01 | <gnome42> | MrGandalf: http://www.gossamer-threads.com/lists/mythtv/dev/300776#300776 |
15:01 | <MrGandalf> | thanks |
15:01 | <gnome42> | sure |
15:01 | <justinh> | what I want to do will just be a complete waste of memory FWIW |
15:01 | <jams> | justinh- my numbers don't include things like that are not part of the menu, like the program guide in action, or the playback window |
15:01 | <justinh> | jams: ahhh |
15:02 | <justinh> | I was taking into account all the screens |
15:02 | <jams> | right |
15:02 | <justinh> | like, 9 or whatever for mytharchive etc |
15:02 | <gbee> | there is a bug with alphapulse, at least it looks like a bug - set the max to anything exept 255 and it doesn't work |
15:02 | <jams> | so far it's pure menu and settings screen. I'm not going to fully walk the plugins only selected parts. |
15:02 | <justinh> | jams: that's fair enough :) |
15:03 | <jams> | i think just having the settings screen as a handy reference will help a bit. |
15:03 | <justinh> | it'll help a lot |
15:03 | <jams> | i know my menumap has helped be quite a bit with the project |
15:04 | <justinh> | even seasoned users. I was wracking my brain trying to remember how to en/disable browse mode last night. turned up in playback settings of all places |
15:04 | <gbee> | anyway, thinking about using that effect (at a faster speed) with the alert scroller idea I had |
15:04 | <MrGandalf> | hmm, same thing. Seems mythfrontend doesn't like valgrind. |
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15:06 | <MrGandalf> | ah, had to disable autodiscovery |
15:06 | <justinh> | gbee: I love the scroller idea. still yet to be convinced about alphapulse |
15:08 | <gbee> | justinh: I think it's just waiting for someone to come up with a very clever idea |
15:09 | <justinh> | once it's possible to make the alphapulse part a layer underneath another thing, then I might be interested ;) |
15:09 | <Chutt> | alphapulse works on any ui item, including groups as a whole. |
15:10 | <gbee> | just doesn't work on one image underneath another |
15:10 | <Chutt> | it should be passing the modified alpha value down to its children |
15:11 | <gbee> | but yes, I'd forgotten that alphapulse is part of uitype and not the uiimagetype, so it applies to all items |
15:11 | <justinh> | maybe I'll play with it some more |
15:12 | <justinh> | wonder where I left the tarball of my playing with the appearance gadget I started.. |
15:13 | <jams> | hey Chutt given any thought to the url or hosting request for mythsmolt? |
15:13 | <Chutt> | er |
15:13 | <Chutt> | no, sorry |
15:13 | <Chutt> | been away |
15:13 | <jams> | no trouble |
15:14 | <justinh> | right, that's the animation gorn |
15:14 | <justinh> | looks like I might have to invent a cute animated character after all :D |
15:46 | <gnome42> | Chutt: Hi! I wanted to confirm something with you before I go off in the wrong direction. Re: pseudoLiveTVRecording behaviour |
15:47 | <clever_> | can myth fetch the shows title thru EIT while recording?(to verify its on the right channel) |
15:48 | <stuarta> | MrGandalf: the frontend is a real bugger to valgrind |
15:48 | <stuarta> | if it's at all possible.. |
15:48 | <stuarta> | clever_: vaguely possible |
15:48 | <MrGandalf> | I can manage to change channels 2 or 3 times before it really boggs down |
15:48 | <gnome42> | Chutt: Here's the scenario: user is watching livetv. Someone schedules that particular recording to record via mythweb. |
15:49 | <clever_> | stuarta: how would i get myth to dump its eit data to stderr while recording? |
15:49 | <MrGandalf> | but the bug I'm trying to find doesn't appear while under valgrind |
15:49 | <clever_> | so i could see what it gets exactly |
15:49 | <stuarta> | clever_: however the same can be achieved by checking the PAT & PMT |
15:49 | <stuarta> | which we already do |
15:50 | <clever_> | stuarta: which probly cant be done thru a external tuner and ir blaster |
15:50 | <stuarta> | clever_: nope. you need access to the raw stream |
15:50 | <gnome42> | Chutt: what is the correct behaviour: 1. take over that existing livetv recording OR 2. start a fresh recording of that show on that recorder. ? |
15:50 | <MrGandalf> | stuarta: have you seen frontend instability while tuning to h264 channels? |
15:50 | <clever_> | stuarta: when i feed the composite out of the cable box(same as what i feed myth) into the TV i can get some general info like the show name by hitting the display button |
15:51 | <stuarta> | MrGandalf: i no longer have any h264 channels, but it used to have a bit more trouble locking onto them than the normal channels |
15:51 | <clever_> | stuarta: so something on the composite line contains the show name |
15:51 | <stuarta> | clever_: that'll be VBI data or equivalent |
15:51 | <gnome42> | Chutt: I'm going with option 2. but I wanted to confirm :) |
15:51 | <stuarta> | VBI != EIT |
15:51 | <clever_> | stuarta: ahh, then how do i get myth to show its vbi stream? |
15:52 | <stuarta> | that i couldn't tell you. you'll have to dig around in the source |
15:52 | <clever_> | k |
15:52 | <clever_> | i think it may also have -v vbi |
15:52 | <Chutt> | gnome42, err, it should do the same thing as if someone hit 'r' during the live-tv recording. |
15:52 | <stuarta> | clever_: that would probably help :) |
15:53 | <clever_> | also since i fixed vbi(it used to not work at all) ive been getting vbi erorrs randomly |
15:53 | <clever_> | i think they are near the splice point between 2 bits of video and the cable co cut a vbi 'sentence' in half |
15:53 | [~] | stuarta <- is good at EIT |
15:53 | <stuarta> | what the vbi errors? |
15:54 | <gnome42> | Chutt: ok, cool. that was my thought too. It's not always doing that (at least in multirec). Thanks again :) |
15:54 | <clever_> | 2007-11-26 12:30:43.813 NVR(/dev/video0) Error: Reading VBI data |
15:54 | <clever_> | eno: Input/output error (5) |
15:54 | <clever_> | allmost allways 4 of those at once |
15:54 | <clever_> | also once i was watching a comercial which was made up of clips from many diff shows |
15:54 | <clever_> | and the closed captioning of the original video bleeded thru into the comercial:P |
15:54 | <stuarta> | well in that case a vbi error should be expected |
15:55 | <clever_> | yeah |
15:55 | <stuarta> | since you are causing a discontinuity in the VBI stream |
15:55 | <clever_> | yep |
15:55 | <clever_> | and its actualy the cable co doing it not me |
15:55 | <stuarta> | naff all you can do about that then |
15:55 | <stuarta> | hang on. |
15:55 | <clever_> | i could sue the company to stop causing errors:P |
15:55 | <stuarta> | i thought you were splicing |
15:56 | <clever_> | its the splicing at the cable comppany |
15:56 | <clever_> | switching between show and comercial |
15:56 | <stuarta> | ah.. |
15:56 | <clever_> | and some comercials are made of 30 diff clips from shows with bits of the VBI intact |
15:56 | <stuarta> | the localization of commerials in the stream. |
15:56 | <stuarta> | nasty. |
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15:56 | <clever_> | yeah |
15:57 | <stuarta> | does it destabilize the frontend/backend? |
15:57 | <clever_> | hasnt crashed anything yet that i know of |
15:57 | <stuarta> | then i wouldn't worry too much |
15:57 | <clever_> | no idea if its related to the random mythtranscode segfaults |
15:57 | <stuarta> | possibly. |
15:57 | <clever_> | which allways happen at a certain point within affected files |
15:57 | <stuarta> | run mythtranscode under valgrind then. |
15:58 | <clever_> | like theres a SEGFAULTNOW marker hidden in the file |
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15:58 | <clever_> | its mostly a null poitner to a class running its decontructor |
15:58 | <stuarta> | gnome42: any reason you are dropping the fromUtf8 conversion in the cleanup patch? |
15:58 | <clever_> | class * X=0; X->~X(); roughtly |
15:58 | <stuarta> | clever_: Qt classes? |
15:59 | <clever_> | yeah qt ones |
15:59 | <clever_> | i think its qshared |
15:59 | <stuarta> | sounds like there could be some more conversions to deleteLater() required |
15:59 | <clever_> | http://clever.mine.nu:82/mythpaste/transcodesegfault/gdb.txt |
15:59 | <gnome42> | stuarta: Hiya, no that's not intentional ... rechecking ... |
16:00 | <clever_> | i might be confusing diff segfault problems though |
16:01 | <clever_> | mythtranscode running within valgrind |
16:01 | <stuarta> | clever_: that backtrace is dying in a memcpy |
16:01 | <clever_> | valgrind mythtranscode -v record,channel,siparser --infile /media/mainlv/mythtv/1028_20071106120000.nuv --outfile output.nuv --profile 29 |
16:02 | <clever_> | dont see 'memcpy' anywhere in it |
16:02 | <stuarta> | see the link pasted for MrGandalf before, that's got some more magic incantations for valgrind. |
16:03 | <stuarta> | Thread 1 (LWP 11531) - is where it's dying. |
16:03 | <clever_> | which is within AddSamples |
16:03 | <stuarta> | my bad. |
16:04 | <stuarta> | my codebase != your codebase |
16:04 | <clever_> | ah |
16:04 | <clever_> | i beleive im using 14799 |
16:05 | [~] | stuarta svn up's |
16:05 | <clever_> | valgrind gave errors for /lib/ld-2.6.1.so but it gives those for any program |
16:05 | <stuarta> | no different |
16:05 | <stuarta> | head or 0.20-fixes? |
16:05 | <clever_> | trunk |
16:06 | <clever_> | i may have been running something else at the time |
16:06 | <clever_> | but i can reproduce it again with 14799 |
16:07 | <stuarta> | k so that file hasn't changed since r14523 |
16:08 | <stuarta> | what on line 98 of your transcode.cpp? |
16:09 | [~] | clever_ looks |
16:09 | <clever_> | 97 memcpy(audiobuffer + audiobuffer_len, buffer, |
16:09 | <clever_> | 98 samples * bytes_per_sample); |
16:10 | <gnome42> | stuarta: Hmm, another dense moment for me but I don't see where the cleanup patch removes the fromUtf8 :) |
16:11 | <gnome42> | stuarta: Actually I was thinking it might need another one :) http://www.pastebin.ca/798504 |
16:11 | [~] | stuarta larts himself with a patch reading trout |
16:11 | <clever_> | half way to another segfault |
16:12 | <stuarta> | takes a bit longer under valgrind :) |
16:12 | <clever_> | yeah a ton longer:P |
16:12 | <clever_> | its under gdb atm to get a recent bt |
16:13 | <clever_> | http://clever.mine.nu:82/mythpaste/transcodesegfault/gdb.txt |
16:13 | <clever_> | its been appended to |
16:13 | <clever_> | forgot to clear it before starting |
16:13 | <clever_> | i think |
16:14 | <stuarta> | so back to what your code looks like |
16:14 | <stuarta> | only in 0.20-fixes is line 98 within AddSamples() |
16:15 | <stuarta> | with trunk it's still in the constructor |
16:15 | <clever_> | i'll pastebin the whole damn file |
16:17 | <clever_> | http://clever.mine.nu:82/mythpaste/transcodesegfault/transcode.cpp |
16:17 | <clever_> | neither pastebin site had a file upload option |
16:21 | <stuarta> | ftw. now this is the same file as head |
16:21 | [~] | stuarta larts himself again. |
16:22 | <stuarta> | i see, just wasn't reading it right before |
16:22 | <stuarta> | you still got gdb open? |
16:22 | <clever_> | its a script which makes a bt and then quits |
16:23 | <clever_> | but i can reproduce it again with normal gdb |
16:23 | <kormoc> | you could always just have it core dump and then load the core in gdb later |
16:23 | <stuarta> | you'll need to run it inside gdb, so that once it barfs you can examin the data structs. |
16:24 | <clever_> | kormoc: yeah but the ulimit -c keeps shuting itself off |
16:24 | <clever_> | and it makes 50mb core dumps which eat up space a bit fast |
16:24 | <stuarta> | wtf is my memcpy man page... |
16:24 | <clever_> | man memcpy |
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16:25 | <clever_> | MEMCPY(3) Linux Programmer$BCT(B Manual MEMCPY(3) |
16:25 | <clever_> | void *memcpy(void *dest, const void *src, size_t n); |
16:25 | <stuarta> | and nothing came back. hence wtf... |
16:25 | <clever_> | the package may need to be installed |
16:25 | <clever_> | for a while i used the man pages on my redhat9 with a 2.4 kernel |
16:25 | [~] | stuarta has done this before :) |
16:25 | <clever_> | they where a bit out dated:P |
16:26 | <clever_> | ive got them installed on an ubuntu now with 2.6 |
16:26 | <stuarta> | no matter memcpy hasn't changed a bit |
16:26 | <stuarta> | how on earth did i not install manpages-dev ??? |
16:26 | <clever_> | yeah but epoll is missing from the 2.4 set of man pages:P |
16:26 | <clever_> | Program received signal SIGSEGV, Segmentation fault. |
16:27 | <clever_> | ready to dig into the structs |
16:27 | <stuarta> | did you get any logs from valgrind btw? |
16:27 | <clever_> | i cancled it because the ram usage was causing heavy swaping |
16:27 | <clever_> | slowing the gdb bt i was trying to get |
16:27 | <clever_> | but i can fire it back up |
16:27 | <stuarta> | k |
16:28 | <stuarta> | lets poke around with gdb |
16:28 | <clever_> | gdb: ready |
16:28 | <stuarta> | print audiobuffer |
16:28 | <clever_> | $1 = (unsigned char *) 0xbf35 <Address 0xbf35 out of bounds> |
16:29 | <stuarta> | theres the problem. now the question is why |
16:29 | <clever_> | could put a trace or something on it(or add an if in the code after setting) and reproduce it again |
16:29 | <clever_> | (and the file plays fine in mythfrontend) |
16:30 | <stuarta> | no need, we just need to poke around the rest of the variables used for the malloc |
16:32 | [~] | stuarta reads some code |
16:32 | [~] | stuarta notices some differences. |
16:33 | <clever_> | audiobuffer is set in a few places(constructor and tmpbuf) |
16:35 | <stuarta> | there must be some bad input thats causing audiobuffer to point to crap |
16:35 | <stuarta> | after the realloc procedure |
16:36 | <clever_> | i could just printf("audiobuffer is %x\n",audiobuffer); alot |
16:36 | <clever_> | and look for where it goes south |
16:36 | <stuarta> | that's what gdb is for :) |
16:36 | <clever_> | gdb can probly do the same thing with a trace |
16:36 | <stuarta> | print samples |
16:37 | <clever_> | $2 = 1152 |
16:37 | <stuarta> | doh, that's in the backtrace. |
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16:38 | <clever_> | lol |
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16:41 | <clever_> | transcode in valgrind is going at 3 seconds/frame |
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16:41 | <dr_lulz> | clever_: neat speed :> |
16:41 | <clever_> | its normaly more like 10+ frames/sec |
16:41 | <stuarta> | wouldn't expect much more under valgrind... |
16:41 | <clever_> | yeah |
16:42 | <clever_> | and its using 31% of my ram |
16:42 | <stuarta> | normally uses 1.3 - 1.5Gb to valgrind the backend |
16:43 | <clever_> | ouch |
16:43 | <clever_> | and can the be even record in that condition:P |
16:43 | <stuarta> | yes believe it or not |
16:43 | <clever_> | might need a 15ghz cpu to do so |
16:43 | <clever_> | with a frame grabber:P |
16:43 | <stuarta> | it needs more memory, than cpu otherwise it thrashed and you haven't a hope in hell |
16:44 | <stuarta> | thrashes |
16:44 | <gbee> | stuarta: you know that Jools Holland BBC HD sample? transcoded to mpeg4 at the default mythtranscode bitrate it's only 100Mb larger than the original - which is handy to know if your frontend can't handle h.264 (like mine) |
16:44 | <clever_> | mythbackend needs 60-70% cpu to record for me |
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16:44 | <stuarta> | gbee: that the snippet i gave you at LRL? |
16:44 | <gbee> | yeah |
16:44 | <stuarta> | interesting. |
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16:47 | <gbee> | I was a little suprised, the quality isn't noticably different at 1280x720 although the audio is mp3 128Kb, down from 384Kb ac3 |
16:47 | <gbee> | the audio bitrate can be increased though |
16:47 | <stuarta> | that's why using ffmpeg is a bit better |
16:47 | <stuarta> | -acodec copy |
16:48 | <stuarta> | no degradation then :) |
16:48 | <clever_> | mencoder can also do that(-aoc copy i think) |
16:48 | <clever_> | or was it oac |
16:49 | <gbee> | I'd probably just increase the bitrate in the transcoding profile, it isn't like I can really tell the difference between a higher rate mp3 and aac |
16:50 | <clever_> | i cant even put ac3 type stuff to use atm |
16:50 | <clever_> | nothing with spdif in |
16:50 | <gbee> | mythtranscode is a little easier to use since I don't have to remember so many args |
16:50 | <clever_> | gbee: a userjob fixes that:P |
16:52 | <gbee> | it's all hypothetical, since I can't receive HD here, but if FreeSat carries BBC HD when it launches in the Spring, then at least I can watch it |
16:53 | <clever_> | i cant even record hd atm since i dont have a firewire port on the box |
16:53 | <justinh> | gbee: the dvb-s stuff is still on AFAIK |
16:53 | <stuarta> | yeah sposed to be. |
16:53 | <stuarta> | us plebs on dvb-t don't get it anymore :( |
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16:53 | <gbee> | FTA? |
16:53 | <clever_> | how many channels are unencrypted on sat? |
16:53 | <clever_> | that i could pick up with dvb-s |
16:54 | <clever_> | (on avg) |
16:54 | <stuarta> | gbee: yep |
16:54 | <stuarta> | clever_: check lyngsat |
16:54 | <clever_> | the house came with a dish on the roof but we arent paying for it |
16:54 | <gbee> | cool, maybe I'll grab a DVB-S card sooner than later - thought BBC HD was among the FTV channels |
16:55 | [~] | stuarta quickly checks lyngsat |
16:56 | <stuarta> | http://www.lyngsat.com/freetv/United-Kingdom.html |
16:56 | <Chutt> | blah. my production mythbox isn't seeing the network :/ |
16:57 | <clever_> | in general can a sat dish pickup a signal from any tv sat transmision? |
16:57 | <gbee> | clever_: assuming it's pointing in the right direction |
16:57 | <clever_> | (so i could point the thing in another direction to get more channels) |
16:57 | <clever_> | theres no company name on it and i have no idea what provider its pointing at |
16:58 | <clever_> | but aslong as they are all the same freq/modulation i should be able to just pick one and point it |
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17:02 | <clever_> | how much could be listened off the sat dish passively(not sending any signals to the dish control board inside it) |
17:03 | <stuarta> | has it still got the LNB? |
17:03 | <clever_> | LNB? |
17:03 | <stuarta> | the thing on the dish the wires connect to |
17:04 | <justinh> | clever_: you can't. satellite signals are way too high a frequency for satellite tuners which is why the LNB (low noise block) downconverts em |
17:04 | <clever_> | the wire comming down the outside wall has been cut |
17:04 | <clever_> | and the sat boxes in the house left with the old owners |
17:04 | <clever_> | i can easily put a end back on the cable but dont have any of the indoor hardware |
17:04 | <stuarta> | the cards are about 80quid |
17:04 | <stuarta> | IIRC |
17:04 | <clever_> | im canadian:P |
17:05 | <justinh> | the LNB is the bit that picks up the signal on the dish |
17:05 | <clever_> | no idea what a quid is relative to a canadian dollar |
17:05 | <clever_> | is the LNB normaly mounted near the dish or indoors? |
17:05 | <justinh> | clever_: 1 quid == $2 US approx right now |
17:05 | <justinh> | clever_: on the dish |
17:05 | <stuarta> | you may also have different broadcast standards. |
17:05 | <clever_> | i dont think they took anything near the dish |
17:05 | <stuarta> | look at www.lyngsat.com for info about your area. |
17:05 | <clever_> | they didnt bother going to the roof when they left |
17:05 | <justinh> | cables are very lossy at 20Ghz =D |
17:05 | <clever_> | they just unwired the indoor box and took it |
17:06 | <stuarta> | thats normal |
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17:06 | <clever_> | the LNB is probly still on the roof im guessing |
17:06 | <stuarta> | it's most likely they just unplugged the box from the wall |
17:06 | <clever_> | ive got a scope that i could hook up to the line hanging down from the roof |
17:06 | <justinh> | clever_: no use. LNB needs power |
17:07 | <clever_> | when the cable company was adding a few cable wires he cut the sat cable outside |
17:07 | <stuarta> | bastard |
17:07 | <clever_> | we wherent using it at all at the time:P |
17:07 | <stuarta> | he didn't have to cut it... |
17:07 | <clever_> | justinh: is it similar to how analog phones get power over the wire? |
17:07 | <clever_> | x volts DC on the line with the signal as AC noise ontop? |
17:08 | <stuarta> | yup |
17:08 | <justinh> | clever_: aye |
17:08 | [~] | stuarta prescribes clever_ some bedtime reading |
17:08 | <clever_> | so i could just put the voltage on the line and use a cap to filter the signal out |
17:08 | <justinh> | clever_: no |
17:08 | <clever_> | ive ran several normal phones off a pile of 9v baterys before |
17:08 | <justinh> | you need an LC filter |
17:09 | <stuarta> | http://www.satcure.co.uk/tech/lnb.htm |
17:10 | <clever_> | ive taken the 'horn' part of a dish appart in the past and theres a board inside it(posibly where the LNB is) |
17:10 | [~] | justinh gives up |
17:10 | <clever_> | the casing seems to be designed as a wave guide |
17:10 | <stuarta> | start with that link and do some reading. it's quite an extensive topic |
17:10 | <clever_> | yeah the 2nd paragraph just confirmed what i just guessed:P |
17:11 | <clever_> | 'An LNB sits on the end of an arm and faces the parabolic reflector' |
17:11 | <clever_> | ive allways called the LNB the horn on the disk |
17:12 | <clever_> | yeah id say i still have the LNB part:) |
17:14 | <stuarta> | in 2 pieces |
17:15 | <clever_> | i think its a single output one but that doesnt realy matter if i only want to use 1 myth box on it |
17:17 | <stuarta> | but the polarization characteristics are important too |
17:17 | <stuarta> | it's quite often circular, in N.America. |
17:17 | <clever_> | id think the limits of the current LNB match the sat its pointed at |
17:17 | <stuarta> | plus dishnet is odd |
17:17 | <stuarta> | huh |
17:17 | <clever_> | aslong as i dont reaim it it should work fine(assuming the hardware at my end of the coax is fine) |
17:18 | <clever_> | the polarization characteristics that the LNB can do are probly the same ones needed by the sat its pointing at |
17:18 | <stuarta> | yup |
17:19 | <clever_> | would it be posible to power up the LNB and listen for its signal from a normal scope without buying any special hardware? |
17:20 | [~] | stuarta sighs |
17:20 | <clever_> | lol:( |
17:20 | [~] | stuarta points up |
17:21 | <clever_> | at the link im reading:P? |
17:21 | <stuarta> | scrollback |
17:21 | <clever_> | how far? |
17:21 | <clever_> | i can go back as far as [25 00:56:53] |
17:21 | <stuarta> | see what justinh said |
17:21 | <clever_> | ahh about the LC filter? |
17:23 | <gbee> | http://miffteevee.co.uk/themes/metallurgy/metallurgy64.png _OR_ http://miffteevee.co.uk/imagebin/metallurgy_thinborder.png |
17:24 | <gbee> | I'm really leaning towards the second one, but the first one is what I've been showing upto now |
17:28 | <hads> | I think I like the second. |
17:29 | <gbee> | the second is closer to what I was originally aiming for |
17:31 | <gbee> | I think it can be tweaked a little, but it's a big improvement on the first one |
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17:33 | <clever_> | stuarta: http://www.pastebin.ca/798637 |
17:33 | <clever_> | wtf audiobuffer was bf35 AGAIN |
17:35 | <stuarta> | that can't be a coincidence |
17:35 | <clever_> | yeah |
17:35 | <clever_> | could be a buffer overflow |
17:36 | <clever_> | but valgrind would have caught that |
17:37 | <clever_> | lol it took an hour to do that pass in valgrind:P |
17:40 | <stuarta> | how big is the source file? |
17:40 | <clever_> | 900mb area |
17:40 | <clever_> | 902mb |
17:40 | <clever_> | and i get a totaly diff crash if i use a smaller peice of it |
17:41 | <clever_> | my upload is 50kbyte/sec |
17:41 | <stuarta> | it's definitely a buffer overflow of some sort... |
17:42 | <clever_> | how do you make gdb emit status every time a variable it changed? |
17:43 | <stuarta> | dunno. anyway i'm off... nn. |
17:43 | <clever_> | k |
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18:20 | <xris> | gbee: fyi, "thinborder" looks better to me, too.. it's more consistent.. text on dark background all has the same effect (none, in this case) |
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18:25 | <gbee> | thanks xris, maybe I'm just too tired but I'm not understanding the last part? |
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18:27 | <xris> | meaning that if you have text against a dark background, it should look the same... no shiny surface over the stuff in the top corners if there isn't also something similar over the stuff in the main page area |
18:27 | <xris> | if you wanted it to look more consistent, and still have the "shiny" treatment over the stuff in the top section, give it a different background color. |
18:29 | <gbee> | xris: got it, yeah you are right |
18:29 | <xris> | I've been doing UI stuff long enough to know why stuff doesn't look right/good.. unfortunately, not long enough that I can say what would look good in the first place. heh |
18:30 | <xris> | but I really like your theme |
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18:31 | <gbee> | I like it how it is now with the 'thin' borders, looks more like I originally intended - as though the 'action' areas are underneath holes in the metal (something like that anyway) |
18:31 | <xris> | yeah |
18:31 | <xris> | the technique of the look is similar to what I was originally hoping to get out of juski for mythtv.org |
18:32 | <xris> | grumble.. another thing I should put some time into, instead of doing budget stuff for SD. |
18:32 | <gbee> | this whole thing is just a series of accidents which happen to work together, none of it was really planned |
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18:32 | <xris> | heh |
18:32 | <xris> | it looks good |
18:33 | <xris> | I'd love for a set of icons like that for mythtv.org... |
18:33 | <gbee> | thanks |
18:33 | <gbee> | xris: well I'll see what I can do if you want? |
18:33 | <xris> | I need to poke through the website plans again to remember what kinds of sections I wanted. |
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18:34 | <xris> | I'll let you know |
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18:44 | <gbee> | a couple of the icons might be reworked, the more I draw, the more critical I become :) |
18:44 | <gbee> | fwiw - I've just uploaded two more screenshots which show some of the other icons - http://miffteevee.co.uk/themes/metallurgy.html#Menus |
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18:45 | <cmoates> | looking better and better gbee |
18:45 | <xris> | gbee: perfectionism lends itself to finding flaws that aren't actually there... don't overthink things too much. :) |
18:45 | <xris> | any chance you'd make a non-wide version of the theme? |
18:46 | <cmoates> | From his FAQ, no ;) |
18:46 | <gbee> | xris: it's my fatal flaw, perfectionism |
18:46 | <gbee> | heh, well I might - depends how I feel when I've finished the widescreen version |
18:47 | <xris> | heh |
18:47 | <xris> | really wish there was a way to code wide and non-wide into a single package. |
18:47 | <gbee> | if I can write a script to do most of the positioning changes, then chances are higher |
18:47 | <xris> | it's not like wide (or 4:3) themes look *that* bad stretched/squished to fit the other |
18:47 | <kormoc> | gbee, you know, the one screen shot with the 5 icons (and the bottom one being centered). With a input of left/right/up/down, how does the staggered button fit into the flow? |
18:48 | <xris> | gbee: or I just need to get myself a new tv instead of my wife that diamond pendant... |
18:48 | <kormoc> | xris, or you get her the diamond and when she has money, have her buy you a tv :P |
18:49 | <gbee> | kormoc: pressing down from either column takes you to the staggered button, up from it takes you to the left column - I'd prefer the button aligned left, but that will take a code change |
18:49 | <gbee> | xris: I'll leave that decision entirely in your hands :p |
18:50 | <xris> | we'll see how much money I get from my paid out vacation time... switching jobs this weekend |
18:50 | <xris> | I'm supposed to be saving up for a trip to france/italy next summer |
18:50 | <kormoc> | gbee, gotcha |
18:51 | <gbee> | it's not a theme thing, but a code limitation |
18:53 | <gbee> | probably not hard to fix at all, I've been addressing those UI issues a lot recently, so I've come to know the code pretty well |
18:56 | <jk1joel> | Well, I just posted my first MythTV patch: http://svn.mythtv.org/trac/ticket/4227 |
18:56 | <jk1joel> | hopefully with many more to come |
19:01 | <gbee> | jk1joel: looks interesting, I'd probably suggest that we don't need a new setting though, assuming that we all agree that it's a good idea it should only be that we reposition on speeds greater than 3x |
19:02 | <gbee> | ooff, if you can read that - I can't |
19:02 | <jk1joel> | so I how I bring it up for discussion? mailing list? |
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19:03 | <gbee> | -dev list |
19:03 | <hads> | Or a DB-only setting |
19:03 | <jk1joel> | yeah, I'm fine with a hard-coded one or a DB-only setting... just so I don't have to constantly patch the code :) |
19:04 | <gbee> | others might not agree but personally I'd like to see a reduction in settings where possible |
19:04 | <hads> | I think it makes sense, and have DB-only settings for power users to make customising easy. |
19:04 | <jk1joel> | sure, I agree. I didn't know there was a way to do a DB-only settings in the config framework |
19:04 | <briand> | 1 |
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19:05 | <gbee> | the setup and configuration of mythtv is consistantly what we get bad press about, I'm inclined to agree with the complaints |
19:06 | <gbee> | DB only settings are fine |
19:06 | <jk1joel> | so shall I re-work it as a DB-only setting and update the ticket? |
19:06 | <gbee> | jk1joel: please |
19:06 | <gbee> | thnkas |
19:07 | <gbee> | think it's time I went to bed, before my typing becomes even more erratic |
19:07 | <jk1joel> | thanks all for the feedback |
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19:12 | <mzb> | Hi all, I think I've found a bug in mythburn.py ... anyone interested? |
19:13 | <mzb> | (see #mythtv-users) |
19:18 | <mzb> | line should be (afaict): |
19:18 | <mzb> | write("The frame rate for %s should be %s but the stream info file " |
19:18 | <mzb> | "report a fps of %s" % (videomode, fr, fps)) |
19:19 | <mzb> | (videomode param is missing) |
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21:45 | <gnome42> | mzb: please drop it in a ticket at http://cvs.mythtv.org/trac. I don't think the guy who looks after mythburn is around. |
21:45 | <mzb_d800> | already done, thanks |
21:45 | <mzb_d800> | #4228 |
21:45 | <gnome42> | cool :) |
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--- | Log | closed Tue Nov 27 00:00:43 2007 |