IRC Logs

IRC <[email protected]>
Newsgroups gmane.comp.video.gstreamer.daily
Message-ID <[email protected]>
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[07:19] <laurent> Hi, is there anybody out there ?
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[07:30] <laurent> Hi
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[09:32] <mathrick> mornin
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[11:17] <thaytan> hi mathrick
[11:17] <mathrick> yo thaytan
[11:19] <thaytan> heh
[11:19] <mathrick> thaytan: hmm, it didn't tell me much ;)
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[12:22] <Uraeus> morning
[12:23] <thaytan> yo!
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[12:24] <Uraeus> thaytan: seems we need someone to reply to our radio producer, up for the task?
[12:25] <mathrick> yo Uraeus, Alley_Cat
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[12:40] <Uraeus> ok, time for me to walk down to my mothers place, bbl
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[14:47] <bitshifter> how do I find out mime types from a GstPad or GstCaps?  gst_caps_get_mime() doesn't seem to exist any longer and the header file doesn't reveal anything obvious to me either
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[16:08] <wingo> ds: did you see how easy it is to make list structure properties in scheme?
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[16:21] <bitshifter> I'm trying sth like this:  filesrc ! typefind ! fakesink.  When the "have_type" signal gets emitted, I reset the pipeline to state NULL (also tried READY), unlink all elements, insert an oggdemux element, and then link filesrc and oggdemux. Then I set the state of the pipeline to playing again, waiting for oggdemux's 'new-pad' signal. 
[16:21] <bitshifter> However, that never seems to be emitted, and gst_bin_iterate(pipeline) returns FALSE right away
[16:21] <bitshifter> any idea what I'm doing wrong?
[16:24] <mathrick> bitshifter: did you seek back to 0 on filesrc?
[16:25] <bitshifter> mathrick: no, is that necessary? I'd have assumed that setting the playlist to NULL state would do that
[16:25] Action: bitshifter tries
[16:25] <mathrick> bitshifter: hmm, I'm not really sure if it's necessary
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[16:33] <BBB> hi guys... no development from me next week... my laptop broke this morning :'(
[16:34] <bitshifter> hmm, is it possible that if I first link the filesrc to typefind, and then unlink those two and re-connect filesrc to oggdemux, that filesrc and oggdemux won't connect because the filesrc src pad is somehow already fixed to <whatever>
[16:35] <bitshifter> although ... even if I remove the old filesrc and add a new one, I've got the same problem 
[16:36] <mathrick> bitshifter: tried with --gst-debug-level=5 ?
[16:36] <mathrick> hmm, gtg
[16:36] <mathrick> bbl
[16:36] <bitshifter> mathrick: will do, thanks
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[16:50] <wingo> walters: arch question. we want to make the central repository for guile-gnome, and gnu.org and gnome.org don't want to do it. where is a good place to put it?
[16:50] <wingo> Rotty: hi :)
[16:52] Action: wingo is the master at asking questions, and then running away..
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[18:34] <mathrick> b
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[18:49] <jcsston> What does GStreamer use for timestamps? ms, ns?
[18:49] <mathrick> jcsston: ns
[18:49] <mathrick> jcsston: 10^-9 that is
[18:50] <jcsston> ok, that's used for video/audio/other streams?
[18:51] <mathrick> jcsston: for everything
[18:51] <jcsston> k, thanks
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[19:18] <dolphy> yo
[19:18] <mathrick> yo dolphy
[19:19] <apoc> hi dolphy
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[19:27] <mathrick> lo Uraeus
[19:29] <mathrick> Uraeus: is your ISP named Alfanett or something similar?
[19:30] <Uraeus> no Chello
[19:30] <Uraeus> I am at my mothers place now, and her ISP is called alfanett it seems
[19:30] Action: Uraeus just spent a few hours in order to get his mother's wirelss print server to actually work
[19:33] <mathrick> Uraeus: ah, I asked because mine is Alfa-net :)
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[19:35] <Uraeus> ok, time for me to go socialize a bit so I can go home in a few hours with a good conscience :)
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[19:36] <mathrick> hallibaby_: http://www.bitesizeinc.net/index.php/regexp.html
[19:37] <mathrick> hallibaby_: haven't looked at that in detail, but looks promising
[19:38] Nick change: hallibaby_ -> hallibaby
[19:38] <hallibaby> hey mathrick
[19:38] <hallibaby> thanks again. Works perfectly :)=)
[19:39] <hallibaby> bookmarked!
[19:40] <mathrick> hallibaby: np, and mind you, this was really short one. The longest regexps I know of, presumably from O'Reilly's book, are 2 pages long ;P
[19:42] <hallibaby> this works ?:-/ If I remember this short one was hard enough for me :(
[19:43] <mathrick> hallibaby: yeah, they're heavy magic ones ;) I don't do that much of regexp, but should probably take a look at that book some time :)
[19:44] <hallibaby> mathrick: if this book is good send it over ;) need training i think
[19:45] <mathrick> hallibaby: i'd need to own it first :P
[19:45] <mathrick> hallibaby: i haven't read it yet, I just know it's regexp bible
[19:47] <hallibaby> bibles are good. which one is it?
[19:47] <mathrick> hallibaby: i think it's even listed on that page, lemme check
[19:48] <mathrick> hallibaby: Regular Expression Resources <-- that paragraph ;)
[19:55] <hallibaby> mathrick: take a look
[19:55] <mathrick> hallibaby: at what?
[19:57] <hallibaby>  Regular Expression Resources
[19:58] <mathrick> hallibaby: i did. And?
[19:58] <mathrick> "Mastering Regular Expressions by O'Reilly is a highly recommended book. "
[19:58] Nick change: Alley_Cat -> alley_cat
[19:59] <mathrick> with link to O'Reilly's page
[19:59] <hallibaby> mathrick: currently looking for that
[20:01] <hallibaby> mathrick: okay hallibaby. take a big breath and read the sample chapter again :)==)
[20:09] <dolphy> something wrong with vorbis ?
[20:09] <dolphy> vorbis_synthesis_restart ?
[20:14] <apoc> dolphy: Comapny added this to vorbisdec
[20:14] <dolphy> apoc: sweet... so now we are broken once more..
[20:15] <apoc> dolphy: it compiles fine here 
[20:18] <dolphy> apoc: well you probably have vorbis 1.1 then
[20:18] <thomasvs> dolphy: oh, I didn't commit yet
[20:19] <thomasvs> hang on, committing
[20:19] <dolphy> thomasvs: http://www.vorbis.com/software.psp?id=115
[20:19] <thomasvs> it's in
[20:20] <apoc> dolphy: libvorbis-1.0.1-r1
[20:20] <thomasvs> dolphy: yeah, and ? :)
[20:20] <dolphy> thomasvs: Theora support ? :-!
[20:21] <thomasvs> oh, well :)
[20:21] <thomasvs> we'll have better support
[20:22] <dolphy> but that's support for a non fixed codec then :)
[20:23] <thomasvs> yeah
[20:24] Action: dolphy rebuilds totem now to test seeking on a pile of different medias
[20:26] <dolphy> thomasvs: checking what you did in gstplay.c
[20:26] <dolphy> thomasvs: dude you are not checking for the gerror in gst_play_new
[20:26] <dolphy> thomasvs: if i pass you NULL it just segfaults badely
[20:26] <dolphy> badly
[20:26] <thomasvs> dolphy: oh, yeah, I forgot to commit that
[20:26] <dolphy> thomasvs: lol :)
[20:27] <thomasvs> dolphy: I'm sure I have some other mistakes still here and there, I had a major headache all weekend
[20:27] <thomasvs> so I only did easy stuff this weekend :)
[20:27] <dolphy> thomasvs: please flush your repository :)
[20:27] <thomasvs> well, I'm just going out the door right now
[20:32] <dolphy> ogg seeking seems broken
[20:34] <thomasvs> ah ?
[20:34] <thomasvs> here it works very well
[20:34] <thomasvs> he did put in an additional patch though
[20:35] <dolphy> thomasvs: which app ?
[20:35] <thomasvs> and I'm sure that my patch doesn't really help, it just makes it compile
[20:35] <thomasvs> gst-player
[20:35] <thomasvs> dolphy: I'm assuming he changed some other stuff, then used synthesis_reset to do something right
[20:35] <dolphy> ** (totem:23637): WARNING **: trying to switch to the same cothread, not allowed
[20:35] <thomasvs> dolphy: so if you do an #else (old code path from before his commit), it should work
[20:35] <dolphy> hmm gthread probably
[20:36] <dolphy> switching back to opt
[20:37] <thomasvs> helix has funded xiph as well additionally it seems
[20:38] <dolphy> yeah it works
[20:38] <thomasvs> biab
[20:38] Action: dolphy is away for dinner
[20:38] <dolphy> ++
[20:39] <mathrick> dolphy: ++ ?
[20:40] <thomasvs> "me too"
[20:40] <mathrick> ah, any rationale? ;)
[20:40] <mathrick> hmm, ok, nvm ;)
[20:40] <thomasvs> that would imply presence of reason, no ? :)
[20:41] <mathrick> there are days when I stop seeing in terms of source code, apparently one of them is today ;)
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[21:22] <Uraeus> g'evening
[21:23] <mathrick> evening Uraeus
[21:27] <Uraeus> hmm, noone has still not replied to that question about using GStreamer in the radio thingy, if I don't see a reply tommorow I write a generic one myself
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[21:41] <mathrick> lo thaytan
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[21:42] <mathrick> hi BBB
[21:42] <BBB> hi
[21:42] Action: BBB kicks laptop
[21:43] <mathrick> BBB: did it break for good? 
[21:43] <ds-gromit> ugh
[21:43] <BBB> yup
[21:43] <mathrick> BBB: data backed up?
[21:43] <BBB> just did that
[21:43] <BBB> it's sort of alive
[21:43] <BBB> I'm using it for internet right now
[21:44] <Uraeus> BBB: any idea what was wrong with my Matroska playback?
[21:44] <BBB> (remote X)
[21:44] <BBB> Uraeus: ??? I really don't know, and won't look at it for at least a few days
[21:44] <BBB> Uraeus: just file a bug report
[21:44] <BBB> I'll look at it
[21:44] <mathrick> BBB: hmm, so it's not totally hopeless
[21:44] <Uraeus> ok
[21:44] <BBB> it is
[21:45] <BBB> the screen is totally broken and won't come back alive, I'm affraid
[21:45] <BBB> looks like voltage issues
[21:45] jcsston` ([email protected]) joined #gstreamer.
[21:46] <mathrick> BBB: argh, not good. Screen is always hardest to replace in laptops
[21:46] <BBB> yup
[21:46] <BBB> I'm affraid I'll have to buy a new one
[21:46] <BBB> anyway, the screen was giving bad issues for a year already
[21:46] <BBB> so I knew this would come
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[21:55] <ChrisHJW> BBB : did robux4 show up here today ?
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[21:55] <ChrisHJW> too lazy to read the logs :)
[21:57] <ChrisHJW> BBB ?
[21:58] <ChrisHJW> thomasvs : are you here ?
[21:59] <ChrisHJW> robux4 has made good progress in porting gstreamer to win32 :)
[21:59] <ChrisHJW> it compiles already
[22:00] <Uraeus> cool :)
[22:01] <BBB> I don't know
[22:01] <ChrisHJW> Uraeus : that doesnt mean its ported yet :P
[22:01] <BBB> my laptop broke this morning
[22:01] <BBB> so I'm currently clueless about everything
[22:01] <Uraeus> ChrisHJW: well I hope he does the porting as a port and not a fork :)
[22:01] <ChrisHJW> a lot of things have to be decided, like how to link your sinks to Windows
[22:02] <ChrisHJW> Uraeus : can you give him CVS access, and decide on where to save the tree
[22:02] <Uraeus> ChrisHJW: no, not anymore, with the move to freedesktop CVS is thomasvs terrotitory
[22:03] <ChrisHJW> thomasvs or company should make a decision about the CVS
[22:03] <BBB> ?
[22:03] <BBB> why them?
[22:03] <ChrisHJW> about where to store the win32 port
[22:03] <BBB> thomasvs is build master and CVS master
[22:03] <Uraeus> ChrisHJW: so the windoes patches will not be possible to merge with CVS head to have a shared unix/window tree?
[22:03] <BBB> sure it will
[22:03] <ChrisHJW> Uraeus : dont ask me, i am completely clueless here :)
[22:04] <Uraeus> ok, so the windows port should just be a branch then I guess
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[22:05] <BBB> it's not a branch
[22:05] <BBB> it's just in main CVS
[22:06] <Uraeus> BBB: well due to our freeze I am not sure putting it right into our main CVS is such a good idea unless we are 100% it will not have any implications for our current plattforms
[22:07] <BBB> ?
[22:07] <BBB> which freeze?
[22:07] <Uraeus> I have a feeling the windows port will implicate bigger changes than for instance a few AIX portablity fixes
[22:08] <Uraeus> BBB: we are in a feature freeze on the core aren't we?
[22:08] <BBB> oh?
[22:08] <BBB> my mail has been broken since friday, my laptop has been broken since this morning
[22:08] <BBB> I really don't know anything
[22:09] <Uraeus> there is no mail, I just thought our long term agreements said that after the caps merge we should stabilize what is there not add new stuff
[22:09] <Uraeus> the definition of what is adding new stuff and what is stabilizing what is there is of course a bit fluid
[22:10] <BBB> hm
[22:12] <mathrick> BBB: it's kind of consensus that freeze is almost here, and will be official when thomasvs releases 0.7.4 I think
[22:13] <Uraeus> thomasvs: I think your radio background makes you perfect for answering the mail from Jason Moore that came to the list on friday
[22:13] <ChrisHJW> BBB: can all of this go into the famous 'makefile' to differentiate the Linux versions from the win32 version ?
[22:13] <thomasvs> Uraeus: yeah, I should reply to it
[22:14] <thomasvs> ChrisHJW: yeah, I'd love to see his patches and give him cvs access
[22:14] <thomasvs> ChrisHJW: we should just discuss over mail or something how to best integrate the patches
[22:14] <ChrisHJW> thomasvs : his username on sf.net is robux4
[22:14] <ChrisHJW> oh wait, you guys moved
[22:17] <ChrisHJW> thomasvs : i can create his useraccount now on freebsd, and you give it CVS access :)
[22:19] thaytan ([email protected]) left irc: "See y'all"
[22:25] <BBB> we'll wait for him to be here
[22:25] <thomasvs> ChrisHJW: freebsd ?
[22:31] hallibaby ([email protected]) left irc: "Bye bye"
[22:41] <dolphy> mathrick: ++ kind of means see you later :)
[22:42] <dolphy> mathrick: but that's from french expression "a plus" 
[22:44] Action: dolphy just watched sixth sense for the 2nd time 
[22:44] <ChrisHJW> thomasvs : sorry if i got your new host wrong, i thought its freebsd.org
[22:45] <BBB> :D
[22:45] <BBB> freedesktop.org
[22:45] <dolphy> thomasvs: managed to fix flac seeking ?
[22:46] <dolphy> hmm seems not
[22:46] <dolphy> flac seeking is still broken
[22:47] <thomasvs> dolphy: nope
[22:47] <thomasvs> dolphy: did you understand the movie this time ?
[22:50] <mathrick> dolphy: just plain C operator is enough to understand it :)
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[22:50] <aeyakovenko> hello
[22:50] <mathrick> lo aeyakovenko
[22:51] <aeyakovenko> i got some more rtp/sink/src questions
[22:51] <aeyakovenko> the thing about rtp is that you can have dynamic payload types, so an rtp source may actually have a bunch of streams in it, it would be great if you could somehow define a src pad for each stream
[22:52] <thomasvs> aeyakovenko: can you give an example ?
[22:52] <thomasvs> aeyakovenko: basically, it should act as a demuxer
[22:53] <mathrick> aeyakovenko: IIRC, Ramon design included separate elem specific for each payload type, that came after rtpdemux in pipeline
[22:53] <aeyakovenko> thomasvs: sure, in the sdp rfc 2327 there is a field called rtpmap
[22:53] <mathrick> hmm, maybe it should be s/rtpdemux/rtpsrc/ ?
[22:53] <aeyakovenko> each value can specify a different codec
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[22:54] <dolphy> thomasvs: i understood it both times :)
[22:55] <thomasvs> aeyakovenko: but are you sure more htan one codec can bs served on the same connection ?
[22:55] <dolphy> thomasvs: but the second time you catch much more details
[22:55] <thomasvs> dolphy: hehe :)
[22:55] <aeyakovenko> m=audio 49230 RTP/AVP 96 97 98
[22:55] <aeyakovenko> a=rtpmap:96 L8/8000
[22:55] <aeyakovenko> a=rtpmap:97 L16/8000
[22:55] <aeyakovenko> a=rtpmap:98 L16/11025/2
[22:55] <aeyakovenko> like that
[22:55] <dolphy> thomasvs: about the beauty of this realisation
[22:55] <aeyakovenko> thomasvs: yes
[22:55] <aeyakovenko> thomasvs: the client can demux the stream based on the rtpmap value in the rtp packet
[22:56] <aeyakovenko> thomasvs: in that example all those codecs may be accepted on port 49230
[22:56] <BBB> where *is* Ramon?
[22:56] <BBB> wasn't he supposed to do all this?
[22:56] <mathrick> BBB: yes he was
[22:59] <BBB> well...
[23:00] <aeyakovenko> so something like this rtpsrc->rtpdemux(pad for rtpmap 98, another pad for rtpmap 99 ....)
[23:02] <aeyakovenko> he probably let each rtppayload element filter the stream, instead of doing at the source
[23:03] <mathrick> aeyakovenko: did you look at archives? it's pretty detailed discussion there
[23:05] <aeyakovenko> mathrick: i couldnt find any design stuff
[23:09] <mathrick> aeyakovenko: <[email protected]> is the first one I have in my own archives, 4 Sep 2003
[23:10] <mathrick> aeyakovenko: it may be that Ramon discussed that earlier, but I don't have archives from back then
[23:11] <aeyakovenko> mathrick: i found some design notes, the thing is that he wrote that stuff from scratch, so he can break up the rtp lib into logical components, i already have a full rtp lib that i just want to have gstreamer interface too
[23:13] <mathrick> aeyakovenko: well, I don't know that lib, and also my knowledge of rtp is very shallow
[23:13] <mathrick> aeyakovenko: maybe some kind of specialized autoplugger is what you need here
[23:14] <BBB> aeyakovenko: but if you have a rtp lib, then you can just do it, right?
[23:14] <BBB> what am I missing?
[23:14] <mathrick> aeyakovenko: I think mpeg2demux may be somewhat similar in that it also copes with multitude of possible streams
[23:15] <aeyakovenko> BBB: well yea, but i want to define a src and sink in a logical way, like how do i demux the different streams?  or add multicast and stuff like that
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[23:16] <Zeenix> hello
[23:16] <mathrick> lo Zeenix
[23:16] Action: Zeenix just implemented xoverlay in cacasink but he is'nt sure if he did that correctly..
[23:16] <BBB> there's your RTP expert ;)
[23:16] <BBB> hi zeenix
[23:17] <BBB> I should create a test app for videotestsrc ! <myxoverlaysink> inside a gtk window one day
[23:18] <aeyakovenko> when two elements link, are they aware of each other?
[23:18] <Zeenix> ok, is gst_x_overlay_set_xwindow_id the func. which will give me the xid of the parent window in which to embedd the libcaca output window?
[23:18] Nick change: KA -> KA_afk
[23:19] <mathrick> aeyakovenko: what do you mean?
[23:19] <BBB> Zeenix: yes
[23:20] <aeyakovenko> mathrick: well, if i like a and b, can be do something to a internaly?
[23:20] <mathrick> aeyakovenko: yes and no
[23:20] <BBB> Zeenix: the PWG (freedesktop.org/~gstreamer/) has the xoverlay interface documented
[23:20] <aeyakovenko> mathrick: or is it just buffer passing?
[23:20] <mathrick> aeyakovenko: elements negotiate type of data
[23:20] <Zeenix> BBB: cool, i thought we are still poor in docs..
[23:21] <mathrick> aeyakovenko: linking is in fact determining common format of both elems, or more precisely, pads
[23:21] <BBB> Zeenix: that has improved quite a bit since last week
[23:21] <BBB> we're really doing quite well
[23:21] <BBB> the application development manual needs more work though
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[23:23] <aeyakovenko> mathrick: so its possible to so domething like an rtpmux with rtpsrc and sinks that do rtpmap filtering and adding and removing destinations? 
[23:24] Action: mathrick reads this convoluted sentence once again, slowly ;)
[23:24] <aeyakovenko> mathrick: basicaly when i call link (a, b), can b do something like a.function(blah)?
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[23:25] <mathrick> aeyakovenko: only small set of functions related to negotiation
[23:25] <mathrick> aeyakovenko: you can actively try to set your preferred format, and core assist with that process
[23:25] <aeyakovenko> mathrick: thats pretty much what i want, but there wont be any actuall data passing between them
[23:26] <mathrick> aeyakovenko: hmm, what exactly do you have on your mind?
[23:27] <mathrick> aeyakovenko: I'm not sure if I get you correctly, but what you think about is probably "SOMETIMES" pads
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[23:27] <aeyakovenko> mathrick: like link(rtpmux, rtpmapencoder or rtpdestination), that will just call a funciton inside rtpmux, which is a wrapper for the whole rtp implementation, that iwll add a rtpmap or a destination, etc
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[23:28] <mathrick> aeyakovenko: urk, I don't follow
[23:29] <aeyakovenko> mathrick: i just want a way tell the rtplibrary that should encode this data with this rtpmap, 
[23:29] <mathrick> aeyakovenko: basically, no element is legitimated to call (or make any other assumptions about) function of any other elem in pipeline, every knowledge you have is given by caps
[23:30] <aeyakovenko> mathrick: ok, thats what i thought, but can it ask for a pad that specifies the rtpmap?
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[23:30] <mathrick> aeyakovenko: yes, caps can specify everything in general
[23:31] <mathrick> aeyakovenko: like, currently some caps have "fourcc" property
[23:31] <mathrick> aeyakovenko: it looks pretty similar to what you need
[23:32] <aeyakovenko> mathrick: ok, ill check it out.  do elements have to have data passing through them?
[23:32] <mathrick> aeyakovenko: basically, caps consist of mime type, possibly augmented with additional properties
[23:32] <mathrick> aeyakovenko: well, I don't think so, they just have to negotiate to link :)
[23:33] <mathrick> aeyakovenko: just sometimes negotiation may be delayed until first buffer arrives
[23:33] <aeyakovenko> mathrick: awsome, i think i can get this to work and at least look clean
[23:34] <mathrick> aeyakovenko: but AFAIK, if you negotiate your src caps, you're the one who can return DELAYED, not the other side
[23:34] <mathrick> aeyakovenko: so it will be demuxer who dictates final format
[23:34] <aeyakovenko> mathrick: thats what i want
[23:34] <aeyakovenko> mathrick: i think
[23:36] <mathrick> aeyakovenko: if you need details, ask ds-gromit or Company, they're the ones who know caps the best. ds-gromit designed and implemented latest incarnation :)
[23:36] <Uraeus> there is also caps docs in docs/random/ds directory
[23:37] <mathrick> ahh, right, our preciousss docs/random :)
[23:38] Action: mathrick didn't know it's possible to trash stack with abs() ;)
[23:41] <aeyakovenko> cool
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[23:45] <aeyakovenko> whats up with gst-thumbnail?  i notice it sometimes takes up 100% cpu
[23:46] <Uraeus> my guess is that due to videoplayback still needing much love it often get into troubles when thumbnailing
[23:57] Nick change: thomasvs -> thomasvz
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[00:00] --- Mon Feb  2 2004
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[01:52] <mathrick> nite
[01:54] <thaytoo> goodnight!
[01:55] Nick change: mathrick -> mathrick|sleep
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