[Ffmpeg-devel-irc] ffmpeg.log.20120817

[burek]

[01:21] <camservo> Anyone know a way to create a 7.1 wav file from mono wavs?
[01:23] <camservo> or whether ffmpeg even supports that
[01:31] <llogan> camservo: http://ffmpeg.org/ffmpeg.html#join
[01:31] <camservo> aha, JOIN is the word i was looking for.  Thanks =)
[01:43] <tbo> I have an SWF file, which is a video, I want to convert it to another container, but I can't copy the video track out of the file, converting works: http://pastebin.com/cbecTSyA hopefully someone can help me
[01:49] <llogan> tbo: use a pastebin service to show the complete output of "ffmpeg -i /Users/thomas/Downloads/Spiel\ mit.swf"
[01:50] <tbo> http://pastebin.com/nS6Q3Dbb
[02:03] <llogan> tbo: ffmpeg -i input.swf -c:v copy output
[02:09] <tbo> llogan: no, new file only includes audio, mplayer even crashes
[02:19] <tbo> pastebin is slow today
[02:19] <llogan> or any other pastebin service will be fine
[02:19] <tbo> http://pastebin.com/D3H4Te8y
[02:19] <tbo> the file in mplayer: http://pastebin.com/y4YKyabH
[02:21] <llogan> do you want the audio?
[02:22] <tbo> video is currently more important. it works nicely when I use -vcodec libx264, so I guess I have to live with a converted version of the video
[02:22] <llogan> if you want the audio you can use: ffmpeg -i input -c copy output, or ffmpeg -i input -c:v copy -c:a copy output
[02:23] <llogan> if you don't want it use: ffmpeg -i input -c:v copy -an output
[02:23] <llogan> although i don't know why mplayer is having problems with it
[02:32] <tbo> llogan: somehow ffmpeg can't copy the video track but converting works: http://pastebin.com/dECT8GbB
[02:37] <relaxed> tbo: ffmpeg -i input -map 0 -c copy output.mkv
[02:40] <tbo> relaxed: nope, copying audio works, copying video don't :-(
[02:42] <relaxed> does ffplay display video?
[02:42] <tbo> relaxed: I don't have ffplay, just mplayer which can play the video in the swf container
[02:43] <camservo> man ffmpeg
[02:43] <camservo> sorry, that wasn't me leaving a snarky response... it was me typing in the wrong window =)
[02:44] <tbo> I see
[02:44] <llogan> camservo: at least it wasn't something embarassing.
[02:44] <tbo> what worked was this: ffmpeg -i Spiel\ mit.swf -vcodec libx264  -acodec copy Spiel.mkv
[02:45] <relaxed> If mplayer can play it, what is the purpose of changing containers?
[02:46] <tbo> mplayer says the video is 27 min long, [swf @ 0x1031ca820]Estimating duration from bitrate, this may be inaccurate
[02:47] <relaxed> you could try mkvmerge
[02:47] <llogan> tbo: can you provide the input file?
[02:47] <relaxed> I'm not sure if it will accept swf
[02:48] <tbo> relaxed: it won't, at least the GUI version I tried won't
[02:49] <tbo> mom
[02:54] <tbo> llogan: here is the file in question: https://dl.dropbox.com/u/36219/Spiel_mit.swf
[03:04] <llogan> tbo: ffmpeg git head seems to be the same, so i recommend a bug report
[03:23] <JPeterson> anyone familiar with ppa:motumedia/libav-daily?
[03:23] <JPeterson> why does it list ffmpeg_0.9~~git20120514.33524-1~precise1_all.deb as the latest ffmpeg package?
[03:28] <JPeterson> ok the package is called libav-tools and apt-get install ffmpeg did not update libav-tools
[03:29] <llogan> JPeterson: ubuntu and the motumedia PPA use libav, not FFmpeg.
[03:31] <llogan> to make things more confusing, there is a "ffmpeg" package, but it is also from libav, not FFmpeg.
[03:38] <camservo> so THAT'S why I can only ever get anything to work when I've compiled from source myself
[10:43] <Mavrik> hmm, I just have to run a filter (cropdetect) over a video without actually encoding anything... is there a "nullsink" codec or something in this regard?
[10:44] <juanmabc> nope, i asked for editing metadata
[13:41] <japjap> Hello
[13:41] <japjap> Is it possible to receive RTP packets via UDP and have ffmpeg convert them into MP4 on the fly ?
[13:41] <japjap> Would piping UDP data to stdout and have ffmpeg process stdin work ?
[14:04] <zap0> UDP is un-ordered.
[14:05] <zap0> japjap, who/how are they going to get re-ordered?
[14:07] <japjap> zap0, what's unordered ?
[14:08] <zap0> anti-ordered
[14:08] <zap0> not in order
[14:08] <zap0> the order is not known
[14:09] <zap0> the order, being the thing that defines the order of which packets are ordered is not
[14:59] <gurusinghbrar> hi
[14:59] <gurusinghbrar> help plz
[14:59] <gurusinghbrar> help..................
[15:00] <gurusinghbrar> i want ffmpeg unofficial build with AAC+ or libfdk-aac
[15:00] <burek> :)
[15:01] <burek> gurusinghbrar what's your issue
[15:01] <gurusinghbrar> i want ffmpeg unofficial build with AAC+ or libfdk-aac lib
[15:02] <burek> japjap, did you try: app1 | ffmpeg -f rtp udp://localhost:port -c:copy -f mp4 output.mp4
[15:02] <burek> app1 | ffmpeg -f rtp -i udp://localhost:port -c:copy -f mp4 output.mp4
[15:02] <burek> (-i was missing)
[15:02] <burek> gurusinghbrar, why don't you make yourself one
[15:03] <burek> there you have some compiling tutorials
[15:03] <gurusinghbrar> i am new bee, and dont know how to compile it on window..
[15:03] <iive> i bet he is on windows...
[15:03] <burek> well, don't be a newbee all your life then
[15:03] <burek> start using google
[15:03] <burek> read some docs
[15:04] <burek> and you'll see it's not that difficult
[15:04] <burek> visit zeranoe's blog first
[15:04] <burek> to see how to compile ffmpeg on windows
[15:04] <burek> when you figure it out
[15:04] <gurusinghbrar> i find over google but not help more... let me tell you wht i read over googler
[15:04] <burek> just add libaacplus into the story and that's it
[15:05] <gurusinghbrar> http://ffmpeg.gusari.org/viewtopic.php?f=25&t=5
[15:05] <gurusinghbrar> and this 
[15:05] <gurusinghbrar> http://tipok.org.ua/node/24
[15:05] <gurusinghbrar> but not helpd
[15:05] <burek> well, that'll help you
[15:05] <burek> just, you need either cygwin
[15:06] <burek> or something similar
[15:06] <burek> because that tutorial is for linux
[15:06] <gurusinghbrar> yaa i know about these zeranoe  but they remove it for licence issue
[15:06] <burek> and whenever you want something from the linux world, built for windows, you'll need something like cygwin
[15:07] <burek> well, to be short, there is no prebuilt windows ffmpeg with aacplus
[15:07] <burek> if that's what are you asking
[15:07] <gurusinghbrar> so can u provide me ffmpeg.exe on privte filesever non-free. site
[15:07] <burek> no
[15:07] <burek> I don't want to go to the jail
[15:07] <burek> you need to build it yourself
[15:07] <burek> because of license issues
[15:07] <burek> nobody can provide you that exe file legally, because libaacplus is a non-free lib
[15:08] <burek> the only way to get it is to build it yourself (and to keep it to yourself)
[15:08] <burek> legally of course
[15:08] <gurusinghbrar> ok,, tell me the whole procedure for window with latest build
[15:08] <burek> start there
[15:09] <gurusinghbrar> i will try it to compile it myself... but dont know more about compiling procedure.. can you help me...
[15:10] <gurusinghbrar> hey rply burek
[15:10] <burek> http://ffmpeg.zeranoe.com/blog/
[15:10] <burek> I don't have time for that, sorry
[15:13] <gurusinghbrar> i m on windows xp system... any tutorial for windows
[15:37] <gurusinghbrar> ok,,, i install the cygwin and now what i do for ffmpeg my own build
[15:37] <gurusinghbrar> burek
[15:38] <burek> gurusinghbrar, you read the documentation
[15:38] <burek> and learn how to use google to get it
[15:38] <burek> this is not a cygwin help channel :/
[15:39] <gurusinghbrar> any docoumentation for it on net
[15:59] <vivienschilis> Hey guys
[15:59] <vivienschilis> is it a good practice to force the colorspace to yuv420p for the web
[15:59] <vivienschilis> ?
[16:00] <zap0> the web is not a video player.
[16:01] <vivienschilis> :) sure. I meant for most html5 web browsers
[16:02] <vivienschilis> so native players
[16:20] <zap0> what are you trying to acheive?
[16:24] <vivienschilis> I want most of my users video working on html5 players
[16:24] <vivienschilis> but some browsers doesn't support certain pixel_format
[16:25] <vivienschilis> like chrome with yuvj420p
[16:25] <vivienschilis> or yuv422
[16:26] <vivienschilis> I didn't find any specs from the browsers listing what's supported or not
[16:27] <burek> vivienschilis, using html5 will not automagically increase the number of users who can watch your video without problems
[16:30] <burek> to be on the safe side, you should provide alternatives, like direct url, flash player and similar stuff
[16:32] <wsjunior> hello, im trying to make a stream throught ffmpeg & ffserver, it seems everything is working ok, i get no error, but im not able to watch the stream..
[16:33] <wsjunior> here is my ffserver.conf: http://pastebin.com/7iM9xSdq
[16:34] <wsjunior> and i started a stream from my pc to the server with this command line: ffmpeg -i teste.mp4 http://200.130.15.45:1935/feed1.ffm
[16:34] <wsjunior> it seems its working because i got frame=219210 fps=475 q=27.3 size=  303212kB time=7314.27 bitrate= 339.6kbits/s running with no problems..
[16:36] <wsjunior> i should be able to watch the stream throught http://200.130.15.45:1935/cdtc.swf but i get no image..
[16:36] <wsjunior> its streaming right now, is anybody here able to see anything?
[16:36] <burek> wsjunior
[16:36] <burek> use -re
[16:36] <burek> when real-time playing input files
[16:36] <burek> ffmpeg will always try to finish the process as fast as possible
[16:36] <burek> like any good encoder should do
[16:37] <burek> so, if you don't specify -re for real-time reading of input
[16:37] <burek> you'll just flood the viewer with everything in a couple of seconds
[16:37] <burek> which might explain high fps
[16:37] <wsjunior> burek: its running now with -re, are u able to see the stream from there?
[16:37] <burek> so, ffmpeg -re -i ...
[16:38] <wsjunior> burek: yes i got it, could u try to test it? http://200.130.15.45:1935/cdtc.swf
[16:38] <burek> swf?
[16:38] <burek> why swf
[16:39] <wsjunior> burek: u can try cdtc.swf, test.swf or test.avi
[16:39] <burek> avi is not streamable
[16:39] <burek> I just don't know why do you use swf
[16:40] <wsjunior> burek: as u can see on my ffserver.conf i have these 3 streams running
[16:40] <burek> why not using some streamable format like mpeg-ts
[16:40] <burek> or flv
[16:40] <wsjunior> burek: its beacause i couldnt find a working stream config section for make it work =/
[16:41] <wsjunior> burek: could u see my actual ffserver.conf and give me a working mpeg-ts or flv configuration?
[16:41] <wsjunior> burek:  http://pastebin.com/7iM9xSdq
[16:44] <burek> wsjunior, try like this: http://pastebin.com/YpZySkeU
[16:46] <wsjunior> burek: done, its running, now need to test, are u able to view the stream from there?
[16:48] <wsjunior> burek: from server i got Fri Aug 17 11:29:42 2012 200.130.103.50 - - [GET] "/test.ts HTTP/1.1" 200 631 but no image at all from player..
[16:52] <NonaSuomy> is it actually possible to stream h264 with ffserver without segmenter?
[16:54] <wsjunior> burek: any idea?
[16:54] <NonaSuomy> I've tried a lot of options but all I have got was ffmpeg to spit out an encoded file and thats about it
[17:02] <wsjunior> burek: ?
[17:06] <wsjunior> burek: when i try to open it with ffplay i get [mp3 @ 0x90870c0] Format detected only with low score of 1, misdetection possible! [mp3 @ 0x90cd6c0] Header missing
[17:06] <wsjunior> burek: http://200.130.15.45:1935/test.ts: could not find codec parameters
[17:06] <NonaSuomy> I dont think anyone truely knows how to stream h264 properly just to note
[17:07] <NonaSuomy> been beating the crap out of me for days
[17:07] <NonaSuomy> some older docs that say you are supposed to use segmenter
[17:08] <NonaSuomy> wsjunior did you get flv without h264 streaming?
[17:09] <wsjunior> NonaSuomy: i would like to stream any format not just h264 but nothing is working =/
[17:10] <wsjunior> NonaSuomy: how to get flv?
[17:10] <NonaSuomy> try this
[17:11] <wsjunior> NonaSuomy: this what?
[17:11] <NonaSuomy> http://pastebin.com/6RnzgQQ8
[17:12] <NonaSuomy> change the stream vars to what ever you have for the feed
[17:17] <NonaSuomy> any luck?
[17:17] <wsjunior> NonaSuomy: ok, now this is my ffserver.conf take a look: http://pastebin.com/W8uWJFJs
[17:17] <wsjunior> NonaSuomy: is this right or should i change anything?
[17:18] <wsjunior> NonaSuomy: the server is running without errors but i cant see anything from http://200.130.15.45:1935/cdtc.flv
[17:19] <NonaSuomy> what is the ffmpeg source?
[17:20] <wsjunior> NonaSuomy: i got this when i try to see the stream with ffplay: http://pastebin.com/7k1wnv7q
[17:20] <wsjunior> NonaSuomy: the source is a mp4 file, im using this command line to start the stream: ffmpeg -re -i teste.mp4 http://200.130.15.45:1935/feed1.ffm
[17:21] <wsjunior> it seems to be working
[17:21] <wsjunior> just cant see it from the server =/
[17:21] <NonaSuomy> on your local lan or externally
[17:22] <wsjunior> well im sending the stream from local lan and the server is externally
[17:22] <NonaSuomy> do you have that port forwarded?
[17:22] <wsjunior> 1935
[17:22] <wsjunior> yes
[17:22] <wsjunior> u can try to open the stream from there
[17:24] <NonaSuomy> do you have another video thats not mp4
[17:25] <NonaSuomy> or an actually capture device
[17:25] <NonaSuomy> this is what the capture device looks like in my feed
[17:26] <NonaSuomy> <Feed cam4.ffm>
[17:26] <NonaSuomy>   File /tmp/cam4.ffm
[17:26] <NonaSuomy>   FileMaxSize 5M
[17:26] <NonaSuomy>   Launch ffmpeg -s 480x360 -f video4linux2 -standard NTSC -channel 3 -i /dev/video3
[17:26] <NonaSuomy> </Feed>
[17:27] <wsjunior> NonaSuomy: does it work?
[17:27] <NonaSuomy> yes
[17:27] <NonaSuomy> with flv
[17:27] <wsjunior> NonaSuomy: gonna try with a avi file here
[17:27] <NonaSuomy> not h264
[17:27] <wsjunior> NonaSuomy: could u try to send a stream from there to my server?
[17:31] <JPeterson> is it possible to copy the sdp file from rtsp://server/sdp to a file?
[17:34] <wsjunior> NonaSuomy: ?
[17:37] <wsjunior> NonaSuomy: any idea of this error? [flv @ 0x83d6240] automatic thread number detection not supported by codec, patch welcome
[17:37] <NonaSuomy> I would show you but someone was trying to help me with the stupid h264 stuff and broke ffmpeg when he was trying to get segmenter to compile as he removed all the codecs for some reason just trying to fix that now
[17:37] <wsjunior> NonaSuomy: i understand..
[17:40] <NonaSuomy> so far I have had 4 people look at it and all failed miserably
[17:40] <NonaSuomy> just to show you your not alone :P
[17:43] <burek> wsjunior, NonaSuomy, I forgot AVOptionVideo flags +global_header
[17:44] <wsjunior> burek: hum, let me try it..
[17:44] <burek> also, test it all on local network first
[17:44] <burek> or rather localhost
[17:45] <NonaSuomy> burek have you seen this error before
[17:45] <NonaSuomy> ffserver
[17:45] <NonaSuomy> ffserver: error while loading shared libraries: libx264.so.124: cannot open shared object file: No such file or directory
[17:46] <burek> try ldconfig
[17:47] <wsjunior> burek: server started, stream sent ok, but when i try to watch it i get this: http://pastebin.com/NxwnLqVJ
[17:48] <burek> I don't know what are you pasting
[17:48] <burek> next time please don't cut the output
[17:48] <burek> and paste it entirely
[17:51] <wsjunior> burek: that was the ffplay output
[17:51] <wsjunior> burek: i just did ffplay http://200.130.15.45:1935/test.ts
[17:51] <burek> as I said
[17:51] <burek> paste the complete output
[17:51] <wsjunior> and got that output
[17:52] <wsjunior> thats all =/
[17:53] <wsjunior> burek: and this is the ffserver.conf: http://pastebin.com/A2wTg7JG
[17:55] <NonaSuomy> burek http://pastebin.com/e7d0sYM5
[17:55] <wsjunior> burek: i tried using a mp4 and an avi file as input source
[18:00] <nx5> hi
[18:02] <nx5> I've been trying to stream video with ffserver but it doesn't work. In the status page I can see that no matter which stream I choose it's in WAIT_FEED state forever
[18:02] <nx5> I can capture images from a webcam but I can't seem to stream to ffserver
[18:03] <nx5> be able to*
[18:03] <NonaSuomy> past your config in pastbin
[18:04] <nx5> it's the example config with "feed1" changed to "webcam" and camera resolution changed to 640x480: http://www.moreno.marzolla.name/software/camera_control/ffserver.conf
[18:04] <nx5> I use ffmpeg like this: ffmpeg -v 2 -r 5 -s 640x480 -f video4linux2 -i /dev/video0 http://localhost:8090/webcam.ffm
[18:05] <nx5> I try mjpeg, mpg, jpg... it's the same with all of them
[18:06] <burek> NonaSuomy, try recompiling ffmpeg
[18:06] <NonaSuomy> ok
[18:06] <nx5> btw, I'm doing this in a raspberry pi board
[18:08] <burek> nx5, try http://pastebin.com/XmUFDuS7
[18:08] <JPeterson> anyone have a tool to dump a describe rtsp request?
[18:09] <nx5> i get errors with that file: feed 'feed1.ffm' not defined and Incorrect keyword: 'AVVideoOption'
[18:10] <NonaSuomy> nx5 this is what worked for me http://pastebin.com/index/6RnzgQQ8
[18:10] <NonaSuomy> this is with a 4 port bnc capture card though.
[18:11] <nx5> but you're not definind the feed
[18:11] <nx5> that config file can't work
[18:11] <nx5> defining*
[18:11] <burek> no need to change the default feed1.ffm
[18:11] <nx5> well my ffserver complaints
[18:11] <nx5> complains
[18:11] <burek> well consult the sample ffserver config file
[18:11] <burek> and just remove all the <feed>s and put that one I gave you
[18:12] <nx5> ok so you didn't giveme your whole file? what am I supposed to keep and what not?
[18:12] <nx5> anyway this doesn't look like a ffserver problem, more like a ffmpeg problem
[18:12] <nx5> can I try to make ffmpeg to record video to a file?
[18:13] <burek> I don't have time sorry
[18:13] <burek> read above what I wrote
[18:13] <nx5> ok no problem
[18:13] <burek> and use google
[18:13] <burek> o/
[18:30] <dericed> can I use ffmpeg to normalize an audio track? I see the volume filter can adjust the volume, but does ffmpeg has a way to decode the existing audio levels so that I can do the math to know how much to adjust.
[18:33] <wsjunior> burek: server returns: http://pastebin.com/9HUyS8ui locally
[18:33] <wsjunior> any idea?
[18:33] <burek> that's still not a complete output
[18:33] <burek> do I need to spell it or what?
[18:37] <wsjunior> burek: is this enough? http://pastebin.com/KnbtTG7r
[18:38] <burek> yes it is
[18:38] <burek> now
[18:38] <burek> you are not using ffmpeg
[18:38] <burek> you are using some fork of ffmpeg, named libav
[18:38] <burek> we don't provide help for other projects, only ffmpeg
[18:38] <wsjunior> burek: same thing using it 0.11
[18:38] <burek> well, show me the log from ffmpeg and I might be able to help
[18:39] <wsjunior> burek: ok, going to the other machine to get it hold on
[19:17] <rud> hmm assumed i opened a ticket on trac, under enhancements, only to provide a patch for it a few hours later.. how does one gets the patch reviewed ..?
[19:18] <rud> just & wait ?
[20:03] <whoev> i'm getting a stall trying to transcode an mp3 to an mp3 - it's trying to map a video stream to a png file
[20:03] <whoev> how can i say, only output the audio stream to the mp3 file?
[20:03] <whoev> -map something, right?
[20:08] <whoev> -map a:0 thanks
[20:23] <dienet> Hello, is it possible to crop 1:ih from avi using ffmpeg? I can crop 2:ih but 1 width is not working I'm getting: [crop @ 0x266ede0] Invalid too big or non positive size for width '0' or height '720' - the '0' is strange...
[20:24] <dienet> the version of the ffmpeg is 0.11.1
[20:26] <Mavrik> dienet: you can't have even video sized if you have a YUV420 video
[20:27] <Peace-> how to encode 2 pass?
[20:27] <Peace-> i mean the old paramenter is not recognized
[20:28] <dienet> Mavrik: is there a way to get this working? I'm not good with this stuff...
[20:28] <Peace-> -pass2 ???
[20:28] <Mavrik> dienet: cut off 2 pixels
[20:28] <Mavrik> Peace-: -pass 2 ?
[20:28] <Peace-> Unrecognized option 'pass2'
[20:29] <Peace-> well the first collect the data to convert in the second stuff
[20:29] <JEEB> yes, you need -pass 1 for the first pas
[20:29] <JEEB> *pass
[20:29] <JEEB> if you need the logs
[20:29] <JEEB> then -pass 2 for the second, where it uses the logs
[20:29] <dienet> Mavrik: ok will do the cutting of 1 extra px someplace else ;)
[20:31] <Peace-> JEEB: ok thanks JEEB was my fault
[20:31] <Peace-> i have use -acodec copy i guess
[20:32] <Peace-> so i doens't convert :D
[20:32] <dienet> But how about the: "2x720 is invalid scaling dimension" message ?
[20:33] <Peace-> JEEB: the output file for the pass1 should be /dev/null ?
[20:33] <Peace-> right ?
[20:34] <JEEB> it can be a normal file, or /dev/null
[20:34] <JEEB> depending on what you need
[20:34] <JEEB> or want
[20:35] <Peace-> JEEB: i am doing a script a script
[20:35] <Peace-> so i guess /dev/null shoul be nice
[20:37] <Peace-> JEEB: Failed to set value '/dev/null' for option 'pass1'
[20:38] <Peace->  /home/nowardevse/ffmpeg/ffmpeg -i   "/home/Field.mp3"  -ab 64k -acodec libvorbis -ac 2 -ar 44100  -pass1  /dev/null
[20:43] <Peace-> omg i am idiot
[20:43] <Peace-> pass 1
[20:43] <Peace-> wtf
[20:43] <Peace-> and not pass1
[20:45] <Mavrik> JEEB: is there a use case when you'd want a  normal file?
[20:49] <Peace-> Mavrik: what? pass 1?
[20:51] <Peace-> ok perfect worked great
[21:48] <RockinRick> greetings
[21:51] <RockinRick> is there anyone around that has the contact or ability to make an addition to the documentation
[21:51] <RockinRick> ?
[22:04] <cbsrobot> RockinRick: sure
[22:05] <RockinRick> I have a suggestion
[22:08] <cbsrobot> should I guess :-)
[22:08] <RockinRick> I was just waiting for an "okay" ...
[22:09] <cbsrobot> hehe - I guessed so - just go on
[22:09] <RockinRick> In the video filters, the copy filter, documentation says it's basically useful for testing
[22:09] <RockinRick> I find it far more useful, I use it regularly
[22:10] <cbsrobot> what for exactly ?
[22:10] <RockinRick> I often have the need to remux MPEG2 files, they contain closed captioning, using this filter retains the caption data in the user data area while a remux without this breaks the captions
[22:11] <RockinRick> I'm not sure how or why but it works
[22:11] <cbsrobot> want to share a comandline example ?
[22:13] <RockinRick> very simple in this case, -i input.mpg -f vob -c:v copy -vf "copy" -c:a copy output.mpg
[22:14] <RockinRick> there's be a little more detail in there depending on need, -top 1 for example, but that's the basic thing, just copy video and audio to a new file
[22:14] <RockinRick> the source for example has unusual pack size or packets per pack or something that causes it to fail, so I rebuild it using -f vob and it's all good
[22:15] <RockinRick> this is to send content into a Grass Valley K2 video file server, and it's a little fussy about MPG composition
[22:15] <cbsrobot> can you pastebin an uncut console output of your command ?
[22:16] <RockinRick> perhaps
[22:16] <cbsrobot> best would be one with -vf "copy" and one without it
[22:17] <RockinRick> for this particular task I normally use the Avanti front end for convenience, it uses the syntax -filter copy, but its the same thing as far as I know
[22:18] <cbsrobot> and what happens if you specify: -i input.mpg -f vob -c:v copy -c:a copy -c:s copy output.mpg
[22:18] <cbsrobot> or simply
[22:18] <cbsrobot>  -i input.mpg -f vob -c copy output.mpg
[22:19] <RockinRick> if the input is a clip containing user data closed captions they are lost
[22:19] <RockinRick> I can run a test right now
[22:19] <cbsrobot> I'll be afk for a moment
[22:19] <cbsrobot> but i'll read the backlog
[22:19] <RockinRick> right on
[22:23] <RockinRick> well in this case the captions were not broken, but it has happened
[22:24] <RockinRick> I've found that some of these closed captioning applications add a lot of null data into the file
[22:33] <nx5> hi again
[22:36] <RockinRick> wouldn't you know I can't reproduce it now
[22:37] <RockinRick> I've been doing this for quite some time, perhaps an earier or particular build didn't copy as it should, or perhaps I don't have exactly the right input file for demonstration
[22:45] <RockinRick> sure, when you try to break something it won't
[22:45] <RockinRick> well thanks for listening anyhow
[22:46] <RockinRick> I do have a question if you or someone else cares to try to answer, regarding -map_channel
[23:13] <shevy> ffmpeg -t 00:00:10 -f x11grab -y -r 12 -i :0.0 -vcodec ffv1 -sameq captured_test.avi
[23:13] <shevy> got a question here
[23:14] <shevy> this captures for 10 seconds my current screen
[23:14] <shevy> the captured area is very small though
[23:14] <shevy> any hints or recommendation to improve that command?
[23:17] <rrrreimer> hi, I followed the howto here: http://www.moreno.marzolla.name/software/camera_control
[23:18] <rrrreimer> but I get this error: Codec for stream 0 does not use global headers but container format requires global headers
[23:18] <rrrreimer> what exactly goes wrong when I execute mplayer http://sacam-wlan:8090/webcam.asf ?
[23:22] <rrrreimer> the connection is refused according http://pastie.org/4539981, what must be changed in my config file http://pastie.org/4539987 ?
[23:24] <rrrreimer> even if I add some more ACLs the connection is refused
[23:27] <rrrreimer> http://pastie.org/4539994
[23:40] <nx5> hi. I'm getting this error when streaming mp4 from a webcam: "muxer does not support non seekable output". Every time a client (VLC) tries to connect to ffserver I see that error in ffmpeg
[23:41] <nx5> I gues I'd have to use rtsp or something...?
[23:52] <RockinRick> I have to get back to work ....
[00:00] --- Sat Aug 18 2012