| --- | Log | opened Sat Jul 26 00:00:41 2008 |
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| 00:39 | <grnmtn> | hi |
| 00:40 | <grnmtn> | does anyone know how to automatically load all metadata with mythvideo? |
| 00:42 | <grnmtn> | oops, sorry just saw the developers note thing |
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| 01:45 | <alex1> | http://www.pastebin.org/57215 Hi I get this when I run mythfrontend and click on watch TV. when I do it the screen goes black for a sec, then he menu pops back up. |
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| 04:54 | <Quentusrex> | How do I get my mythtv box to use my hdmi connection to output the video rather than use the vga connection |
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| 05:22 | <laga> | Quentusrex: /topic |
| 05:24 | <xris> | laga: http://forevermore.net/photozoom/ (have to show off to someone who's awake ;) |
| 05:25 | <laga> | thanks for not using flash. |
| 05:25 | <xris> | heh |
| 05:25 | <xris> | the old app did. you can see it in use on sites like sears.com. |
| 05:26 | <xris> | google maps is just so much more cool. :) |
| 05:26 | <laga> | some mainboard manufacturer uses flash to display images. if you zoom in, it doesn't load a version with higher res - you just get a blocky, scaled up.. oh the horrors |
| 05:27 | <xris> | that's probably the same thing. it's an app called TrueSpectra. who went out of business a year or two ago and got bought out by some new place that charges WAY more money than it's worth |
| 05:27 | <xris> | anyway, it's 2:30 AM.. I need to sleep. |
| 05:28 | * | stuarta waves |
| 05:28 | <laga> | i must say this is pretty cool. |
| 05:29 | <xris> | laga: believe me, my boss was impressed. :) |
| 05:29 | <xris> | *I* was impressed. it's slick. |
| 05:38 | <Virindi> | that's pretty neat :) |
| 05:50 | <clever> | xris: nice site |
| 05:50 | <clever> | i made a php based gps program awhile back |
| 05:50 | <clever> | it used php/gd to draw the lat/long into a raw jpeg when loading the 'image' |
| 05:51 | <clever> | i tried to tie it into google some by making it spew a javascript array for the google api to draw but it didnt work very well |
| 05:51 | <clever> | and ive since lost the half of the script to feed the serial->mysql so i cant log any new datapoints |
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| 05:52 | <clever> | it was 2-3 reinstalls ago |
| 05:52 | <clever> | i suspect its in a 3gig tar file but thats alot to dig thru |
| 06:12 | <Virindi> | only 3gb huh :P |
| 06:12 | <Virindi> | you don't keep much stuff on your system |
| 06:14 | <clever> | Virindi: that was the entire harddrive:P |
| 06:14 | <Virindi> | that must have been a really long time ago, then |
| 06:14 | <clever> | i made the whole php script system on that redhat9 install |
| 06:15 | <clever> | which i later tar'ed up and reformated |
| 06:15 | <clever> | it then became ubuntu 6.06 |
| 06:15 | <clever> | which i upgraded several times |
| 06:15 | <clever> | then the hdd went tits up and now its running nfs root using the drive purely as swap |
| 06:15 | <Virindi> | I still have a fedora install that I want to get rid of but the data on it is too large for any single harddrive I have so formatting would be a pain |
| 06:16 | <clever> | happens alot |
| 06:16 | <clever> | i just shuffle the data out in peices and resize the partition to be smaller |
| 06:16 | <clever> | then uninstall every package i can and keep shrinking the partition |
| 06:16 | <clever> | then just image the whole thing and delete it |
| 06:16 | <Virindi> | it's raid5 on 300gb drives and I don't have any bigger drives than that, though I suppose I could buy a new one big enough to hold it all now |
| 06:17 | <clever> | lol |
| 06:17 | <Virindi> | that's how I've done every upgrade in the past, I've just waited for drive sizes to get so big backups are simple |
| 06:17 | <clever> | lol |
| 06:18 | <Virindi> | I want Debian though, fedora just sucks |
| 06:18 | <clever> | i think it was this 2gig home.tar |
| 06:18 | <clever> | or the other rootsystem.tar.bz2 which is 340mb compressed |
| 06:19 | <Virindi> | you zip everything? Why not just /home and /etc? |
| 06:19 | <clever> | i grabed the entire / |
| 06:19 | <clever> | most of my php scripts where under /var/www/ |
| 06:20 | <Virindi> | ah |
| 06:20 | <clever> | and there may have been more scripts in places like /bin/ |
| 06:20 | <Virindi> | better than losing something |
| 06:21 | <clever> | yep |
| 06:21 | <Virindi> | I still have programs I wrote in VB1 in 1992 |
| 06:21 | <clever> | i still have a qbasic program i wrote:P |
| 06:21 | <clever> | 3d rendering |
| 06:22 | <Virindi> | 3D rendering in qbasic? That's impressive. |
| 06:22 | <clever> | it took xyz cords and drew them onscreen |
| 06:22 | <clever> | wireframe and solid colored faces |
| 06:22 | <clever> | no antialiasing |
| 06:22 | <clever> | i also had mixed text/graphic mode |
| 06:22 | <clever> | half the screen was graphic and half was text |
| 06:23 | <Virindi> | There was a way to do pixel graphics in qbasic? |
| 06:23 | <clever> | yes |
| 06:23 | <Virindi> | neat |
| 06:23 | <clever> | had a range of modes for every resolution |
| 06:23 | <clever> | including ones below 640x480 |
| 06:24 | <Virindi> | well, back then everything used 'mode x' |
| 06:24 | <Virindi> | 320x240 |
| 06:24 | <clever> | yeah |
| 06:25 | <clever> | the lastmod on the files in home.tar are from 2005 |
| 06:25 | <clever> | and 2006 |
| 06:26 | <clever> | yep this root tar is redhat9 |
| 06:26 | <clever> | thats the only distro i ran with a 2.4 kernel |
| 06:27 | <Virindi> | sigh, 2.4 was a huge pain |
| 06:27 | <Virindi> | and YAST...sheesh |
| 06:27 | <clever> | hasnt caused me much of a problem |
| 06:27 | <clever> | YAST? |
| 06:27 | <Virindi> | yes...on suse |
| 06:27 | <clever> | never heard of it |
| 06:27 | <Virindi> | I ran suse before redhat |
| 06:28 | <Virindi> | the first time I ran linux was on a 33mhz 486, it took a week just to get X to start |
| 06:28 | <clever> | i have a 33mhz 486 sx upstairs! |
| 06:29 | <clever> | 4mb of ram i think |
| 06:29 | <clever> | duke nukem 3d wont even run:P |
| 06:29 | <clever> | lol, i found /proc intact in this tar! |
| 06:29 | <clever> | i can see every running process and every open file |
| 06:29 | <Virindi> | maybe ttyquake... :P |
| 06:29 | <clever> | it has 2 empty ram slots |
| 06:30 | <clever> | but the lack of a math processor will hurt the speed of the 3d stuff |
| 06:31 | <Virindi> | Doom always worked fine, even on a 386, though sometimes you had to make the window smaller |
| 06:31 | <clever> | window? |
| 06:31 | <clever> | didnt you allways run fullscreen back then:P |
| 06:31 | <Virindi> | yeah, in doom you can press -... |
| 06:31 | <Virindi> | yes it's fullscreen, but |
| 06:31 | <gbee> | #mythtv-users |
| 06:32 | <Virindi> | if your system is too slow you hit -, which adds a progressively larger no-render border around the outside |
| 06:32 | <clever> | gbee: it isnt even mythtv related:P |
| 06:32 | <clever> | yeah i remember that from dn |
| 06:33 | <gbee> | yeah, but I don't suppose I'll stop you two talking, I'd just rather it didn't clutter this channel :) |
| 06:33 | <clever> | then off to pm we could go:P |
| 06:33 | <Virindi> | bah, nobody else is saying anything more important :| |
| 06:33 | <clever> | lol yeah! |
| 06:34 | <gbee> | yeah, but those devs who are AFK like to read scrollback when they return and that's made harder if they have to read through non-dev, non-mythtv related chat |
| 06:35 | <clever> | gbee: i do that alot on many channels |
| 06:36 | <Virindi> | alrighty |
| 06:39 | <Virindi> | actually I've been thinking I might want to get involved in mythtv |
| 06:40 | <clever> | pick a ticket and try to patch it:P |
| 06:40 | <Virindi> | I've never worked on an OSS project before though |
| 06:41 | <clever> | mythtv also uses alsa and jack:P |
| 06:41 | <clever> | and arts i think |
| 06:41 | <laga> | argh. |
| 06:41 | <laga> | i guess he meant open source. |
| 06:41 | <laga> | not open sound |
| 06:41 | <clever> | ahh |
| 06:42 | <Virindi> | .....yes |
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| 07:54 | <gbee> | "The theme (home) is missing a themeinfo.xml file " << Err, somethings broken there |
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| 08:52 | <lunaris> | I need some help about mythtv |
| 08:52 | <laga> | lunaris: read the topic ;) |
| 08:52 | <lunaris> | Ok...sorry |
| 08:52 | <lunaris> | thanks |
| 08:52 | <lunaris> | and bye |
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| 10:54 | <MrGandalf> | has anyone put together a libavcodec patch from ffmpeg trunk with the latest fixes from Michael yet? (h264) |
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| 11:56 | <janneg> | MrGandalf: I'm syncing now, patch will be posted later today or tomorrow |
| 11:56 | <MrGandalf> | janneg: thanks.. I think I'm almost there on a patch myself.. if I can just get past the segfault. |
| 11:56 | <janneg> | if you're impatient you could try to just use the h264.c from ffmpeg |
| 11:57 | <MrGandalf> | nope, too many changes since -fixes |
| 12:00 | <MrGandalf> | are you going to backport the patch? |
| 12:01 | <janneg> | to release-0-21-fixes? no |
| 12:01 | <MrGandalf> | then my work is usefull :) |
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| 12:03 | <MrGandalf> | I'm close.. I can get it to play for a few seconds and it looks good, but I'm getting a segfault and the core dump is not helping me. suspecting bad cccache. |
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| 12:36 | <gbee> | h264 improvements? |
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| 13:22 | <MrGandalf> | gbee: yep |
| 13:22 | <gbee> | I'll have to take a look then :) |
| 13:22 | <MrGandalf> | got it working with -fixes, except for calls to xchg_mb_border() |
| 13:23 | <MrGandalf> | which doesn't matter to us (deblocking), but it should be fixed anyway I suppose. |
| 13:26 | <gbee> | I'd be interested in -fixes patches |
| 13:29 | <MrGandalf> | sure |
| 13:29 | <gbee> | thanks |
| 13:30 | <MrGandalf> | they may contain changes not necessary for the fix though |
| 13:32 | <gbee> | no worries |
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| 14:46 | <MrGandalf> | think I got it now.. |
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| 15:32 | <MrGandalf> | hmm, nope |
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| 15:44 | <MrGandalf> | gbee: http://www.zshare.net/download/160184877a343dbd/ |
| 15:45 | <MrGandalf> | but calls to xchg_mb_border() are broken (dest_y gets out of bounds) |
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| 15:58 | <MrGandalf> | maybe janneg could take a look :) |
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| 17:34 | <gbee> | MrGandalf: thanks, I'll take a look tomorrow |
| 17:41 | <MrGandalf> | hmm, skiploop filter turned off seems to really same on CPU |
| 17:41 | <MrGandalf> | I really have to wonder what that's for. |
| 17:45 | <gbee> | uses less on mine, not by much but enough to make a difference |
| 17:52 | <gbee> | maybe 5-10% less on each core, can't remember exactly |
| 18:09 | <Dibblah> | MrGandalf: Skip loopfilter. |
| 18:09 | -!- | sphery_ is now known as sphery |
| 18:09 | <Dibblah> | ... The h.264 specs include in-loop (ie inside the decode cycle) deringing / deblocking. |
| 18:11 | <Dibblah> | So the decoder is expected to do deblocking and deringing. With it turned completely off if I understand right, the video will diverge significantly from the intended content over time. Best to leave it on for keyframes. |
| 18:13 | <MrGandalf> | I still don't understand what that really means though\ |
| 18:13 | <danielk22> | it's also a big part of what lets h.264 videos look better than mpeg-2 at the same bitrate |
| 18:14 | <danielk22> | with mpeg-2 you end up wasting more bits on correcting for these artifacts in the B & P frames |
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| 18:14 | <danielk22> | It's in the B & P frames where this processing gives you the most benefit. |
| 18:14 | <MrGandalf> | I can almost keep it on, but occasionally it takes too much CPU. |
| 18:15 | <Dibblah> | MrGandalf: It's not "On" or "Off". |
| 18:15 | <Dibblah> | Look at the other settings in that enum. |
| 18:15 | <Dibblah> | Deringing and deblocking were completely optional in mpeg2. |
| 18:15 | <MrGandalf> | besides, that patch I put together likely has deblocking broken anyway |
| 18:16 | <Dibblah> | For example, ffmpeg doesn't do deblocking as we are using it. |
| 18:16 | <Dibblah> | That's externally implemented in pp. |
| 18:16 | <Dibblah> | postprocessing. |
| 18:17 | <Dibblah> | And it's outside the main loop - So you can turn it off without affecting temporal picture quality. |
| 18:17 | <danielk22> | dibblah: Which isn't as effective. As I understand it h.264 can depend on it and so correct for errors in the deblocking itself. |
| 18:18 | <Dibblah> | Yup. Like I said, it's integral to h.264 - Not an optional part of the spec. |
| 18:18 | <MrGandalf> | ok, what exactly does that skiploop filter patch do then? |
| 18:19 | <Dibblah> | Look at it. |
| 18:19 | <danielk22> | heh, I wonder if the work to support h.264 will end up making mpeg-2 look better with ffmpeg :) |
| 18:19 | <Dibblah> | It turns the in-loop deblocking / deringing completely off. |
| 18:19 | <Dibblah> | For all frame types. |
| 18:19 | <Dibblah> | (mpeg frames, not dispay frames) |
| 18:20 | <danielk22> | In short, it's an uglification hack. ;] |
| 18:21 | <MrGandalf> | dibblah: ok, then your statement " MrGandalf: It's not "On" or "Off"." isn't clear to me. |
| 18:21 | <Dibblah> | There are settings in between. |
| 18:22 | <danielk22> | ***dtk wishes he could afford to dedicate some months to optimizing ffmpeg*** |
| 18:22 | <MrGandalf> | as presented to the user, there is "On" and "Off". THe setting is a checkbox and gets passed as boolean. |
| 18:22 | <Dibblah> | http://www.itdp.de/mplayer-dev-eng/2005-07/msg00379.html |
| 18:22 | <Dibblah> | MrGandalf: Yes, it's wrong. |
| 18:23 | <MrGandalf> | dibblah: ok, but I was talking about it as it is :) |
| 18:23 | <Dibblah> | It's simply a matter of exposing more of the enums. |
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| 18:24 | <Dibblah> | Aha - http://www.itdp.de/mplayer-dev-eng/2005-07/msg00307.html |
| 18:24 | <Dibblah> | That's a better description of all of the options. |
| 18:24 | <MrGandalf> | I would be happy if they managed to get progressive decoding to multithread better. |
| 18:25 | <iamlindoro> | The GSoC project for frame-based multithread should go a long way towards that |
| 18:25 | <Dibblah> | There's a SoC for that. |
| 18:29 | <MrGandalf> | what is the suggested compromise option? |
| 18:29 | <Dibblah> | nonkey |
| 18:29 | <MrGandalf> | ok |
| 18:30 | <Dibblah> | Of course, it all depends on the source material - Some don't use the loopfilter. In which case the saving is 0, |
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| 18:35 | <MrGandalf> | I don't see any difference, but then again I'm not comparing them side-by-side nor over time. |
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| 19:45 | <gbee> | FYI some streams don't need it at all, some broadcast h.264 has a high enough bitrate not to require it |
| 19:45 | <gbee> | e.g. BBC HD |
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| 19:47 | <gbee> | using nonkey didn't yield enough of a performance gain in my experience |
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| 20:15 | <MrGandalf> | mine would skip every 10 minutes or so for a few seconds with AVDISCARD_NONE |
| 20:15 | <MrGandalf> | but is perfect with AVDISCARD_NONKEY |
| 20:15 | <MrGandalf> | interlaced content doesn't require it at all it seems (better multithreading in libavcodec) |
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| 20:21 | <gbee> | things have probably improved in the latest ffmpeg, my only reference is the snapshot used in 0.21 |
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| 20:33 | <MrGandalf> | well, I have a pretty fast CPU as well :) |
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| --- | Log | closed Sun Jul 27 00:00:02 2008 |