[Ffmpeg-devel-irc] ffmpeg.log.20120416

[burek]

[00:25] <tomeo> hi, Im having trouble with verification when using ffmpeg -i. Could someone please take a look here? http://pastie.org/3794826
[01:34] <burek> tomeo, what exactly are you having problem with
[01:34] <burek> your command line is not quite correct
[01:34] <burek> and you got warnings about that
[01:38] <tomeo> burek: Im using a DLNA-server (Serviio) with a plugin that is supposed to grab content from a play service. The command is the one that the plugin uses. But if I change swfVfy=1 to --swfVfy I still get the same error
[01:39] <burek> HandleCtrl: Ignoring SWFVerification request, use --swfVfy!
[01:40] <burek> try just ffmpeg -i rtmp://mtgfs.fplive.net/mtg/flash/sweden/tv8/Hustoppen/Season1/hustoppen_106
[01:40] <burek> also, update your ffmpeg
[01:40] <burek> its old
[01:42] <tomeo> burek still same "Use --swfVfy"
[01:42] <burek> try just ffmpeg -i <url>
[01:42] <burek> that's it
[01:42] <burek> without anything else
[01:42] <tomeo> yes
[01:42] <tomeo> thats what I did
[01:43] <tomeo> it still says use --swfVfy
[01:43] <burek> can you please use pastebin.com, to show your command line and its output?
[01:43] <tomeo> http://pastie.org/3795146
[01:43] <tomeo> there you go
[01:44] <burek> [rtmp @ 0x89bafc0] Server error: Connection failed.
[01:45] <burek> that is what I get
[01:45] <burek> so, probably server is down
[01:45] <burek> update your ffmpeg
[01:45] <tomeo> burek: how do I see what version I have?
[01:45] <burek> first line of output
[01:45] <burek> i think 0.10.x is latest
[01:45] <tomeo> ah okay
[01:45] <tomeo> thanks
[01:46] <burek> but use git
[01:46] <burek> if you want the latest latest
[01:46] <burek> :)
[01:46] <tomeo> Ill just use whatevers in the ports tree
[01:46] <burek> well, ok
[03:47] <darkstarbyte> Does the latest version of ffmpeg have a multithreaded video scaling option?
[03:51] <bucky> I can't install ffmpeg in ubuntu 12.04 because the right version of libav-tools is not available.. is there a ppa available?
[03:52] <relaxed> ubuntu has libav, why not use it?
[03:54] <bucky> apt-get says it can't
[03:54] <bucky> just a sec
[03:55] <relaxed> install libav-tools and use avconv
[03:55] <relaxed> it works the same as ffmpeg
[03:59] <bucky> letsee
[07:12] <edbian> Can I use ffmpeg to convert x264 video to something that my cheapo, weak netbook can play without stuttering?
[07:33] <GreaseMonkey> ok, how do you compile ffmpeg with -fPIC in such a way that vlc laps it up nicely on a 64-bit system
[07:33] <GreaseMonkey> it chunders on libaccess_avio_plugin.a
[07:35] <GreaseMonkey> oh hmm, --enable-pic might do it
[07:42] <GreaseMonkey> ...nope, still hates me
[07:43] <GreaseMonkey> but the code IS a different size
[07:51] <GreaseMonkey> ok i think i might have the wrong pkgconfig stuff
[11:18] <haakon_> Does anyone know when (month/date) map_channels was implemented?
[11:18] <TazzNB> Hey All
[11:19] <TazzNB> I have a cam that does h264 encoding (hardware) and I want to stream that to an rtmp server. Is there any way I can set the "--set-fmt-video" options on the ffmpeg command line ?
[11:25] <ubitux> haakon_: nov 2011
[11:50] <haakon_> ubitux: thanks
[12:27] <Pacefist> There is anybody, who use libav?
[12:43] <burek> TazzNB, what exactly do you want to achieve?
[12:43] <burek> Pacefist, try in #libav
[12:45] <burek> TazzNB, you might be looking for this: ffmpeg -f video4linux2 -vcodec libx264 -i /dev/video0 ...
[12:52] <TazzNB> burek: in a nutshell - I want a h264 stream over the network without taxing the cpu
[12:55] <burek> TazzNB: ffmpeg -f video4linux2 -vcodec libx264 -s 640x480 -r 25 -i /dev/video0 -vcodec copy -f mpegts udp://destination:port
[12:55] <burek> or use rtmp
[12:56] <TazzNB> guess I will have to re-compile ffmpeg :(
[12:56] <TazzNB> Unknown decoder 'libx264'
[12:57] <burek> well
[12:57] <burek> hm, try h264 instead
[12:57] <TazzNB> [video4linux2,v4l2 @ 0x88b84a0] Cannot find a proper format for codec_id 28, pix_fmt -1.
[12:57] <TazzNB> /dev/video1: Input/output error
[12:58] <burek> then recompile :) libx264 is the defacto standard for open source h264
[12:59] <TazzNB> I'll give it a go
[12:59] <TazzNB> thanks
[12:59] <TazzNB> so ffmpeg "should" be able to read the v4l2 device as h264 ?
[12:59] <burek> :beer: :)
[12:59] <burek> yes
[13:00] <TazzNB> what I saw was that ffmpeg would "reset" thedevice options back to ymmv
[13:01] <TazzNB> or what ever
[13:02] <burek> if that happens, then use v4l2-ctl to set the fmt
[13:03] <TazzNB> it keeps doing it at startuop
[13:03] <TazzNB> I'll try a new git compile
[13:03] <TazzNB> I took the ubuntu package from ffmpeg.org
[13:03] <TazzNB> built in march
[13:12] <burek> it's a good practice to always use latest git version
[13:12] <burek> because changes happen each day, with bugfixes, etc
[13:53] <RobertNagy> how does this "interlaced scaling" thing work? Quality wise, is it still better to do -vf yadif=1:-1:1:scale= ?
[13:55] <iive> RobertNagy: only if your encoder is supporting interlace mode.
[13:56] <iive> the interlaced scale is needed, because chroma samples on yuv420 (yv12) go into the wrong field when scaling, causing color bleeding into different fields/frames.
[13:59] <iive> but generally, you can use interlace if your video is shown only on crt TV sets.
[14:07] <mega> hi there, I want to use the delogo filter but running ffmpeg -filters does not show such a filter  (version 0.7.8).
[14:09] <burek> update your ffmpeg?
[14:10] <iive> there is already 0.10.x already
[14:10] <iive> also, you may check the mp= filtersets (mplayer filters)
[14:14] <mega> oh thanx, will update now :)
[14:31] <steeve> hey folks
[14:31] <steeve> quick question, is it possible get a raw mpegts packet with av_read_frame ?
[14:32] <steeve> aka: when writing the packet data to disk, get the same .ts file ?
[14:33] <burek> steeve, did you try reading the source code for that function to see what it actually does?
[14:34] <steeve> yes
[14:34] <steeve> i tried AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE (if that's what you're asking?)
[14:35] <burek> well, save that buffer to a file and check with hex editor? :)
[14:35] <steeve> haha :)
[14:35] <steeve> i just tried dumping packet.data into a file
[14:35] <steeve> just read a .ts file, and dump packet.data into another file
[14:35] <steeve> and compare the 2
[14:36] <steeve> they don't have the same size (~500mb in, 300mb out)
[14:36] <burek> well, that's expected, because you probably are missing metadata and headers
[14:36] <steeve> indeed
[14:36] <burek> did you read any documentation on mpegts file structure?
[14:37] <steeve> not really (i know)
[14:37] <steeve> well
[14:37] <steeve> if you are talking about pmts, pids, pcrs pts etc...
[14:37] <burek> btw, what do you need it for?
[14:37] <steeve> well, I want to read EPG data from a TS stream
[14:37] <steeve> using libdvbpsi
[14:38] <steeve> i already have code reading video frames from that stream, using libavformat
[14:38] <steeve> libdvbpsi is pretty simple: you just send it raw TS packets
[14:39] <burek> hm, you could ask in #ffmpeg-devel or #libav because there are developers who might be able to help you more
[14:39] <burek> but be patient with them
[14:39] <burek> because they always lack free time :)
[14:39] <steeve> oh, my bad, didn't see there was a ffmpeg-devel !
[14:40] <steeve> i'm sure they do :)
[14:40] <steeve> thanks for the hint !
[14:40] <burek> :)
[14:40] <burek> :beer: :)
[14:58] <Durmush> Hi, i'm trying to mux an audio stream that is in a certain file with another video only file. but ffmpeg is reporting an error saying that there is no video decoder with name: copy
[14:58] <Durmush> here is my command line with its output
[14:58] <Durmush> http://pastebin.com/37QP9u2r
[14:59] <burek> hm
[14:59] <StaRetji1> folks, I need some tips on installing ffmpeg on mips
[15:00] <burek> Durmush, try moving -vcodec copy after 2nd -i
[15:00] <StaRetji1> I googled but I'm not sure if I can use debian mips ffmpeg sources on any mips linux platform?
[15:00] <burek> this way ffmpeg thinks you want to decode 2nd -i input with decoder named 'copy'
[15:00] <burek> but since your 2nd file contains both audio and video, you might want to look at the -map option
[15:01] <StaRetji1> more precisely, I need to make it work on dreambox :)
[15:01] <burek> to choose the desired audio/video streams
[15:01] <Durmush> well, this map option always confuses me for some reason
[15:01] <burek> StaRetji1, just download latest git and try to compile it :)
[15:02] <burek> Durmush, well, try at least, and then copy/paste your results so we can help you more with it
[15:02] <ubitux> Durmush: read -map as "-select_input_stream"
[15:02] <StaRetji1> thx burek mate :) I have only 12mb left on device and there is no git installed on it
[15:03] <burek> Durmush, most probably you'll end up with something similar to this: ffmpeg -i video_only.avi -i audio_with_video.mp4 -map 0.0 -map 1.0 -vcodec copy -acodec libmp3lame wr01.avi
[15:04] <StaRetji1> will it be enough to install git and after that ffmpeg?
[15:04] <burek> StaRetji1, then you might read more on cross compiling
[15:04] <burek> and use some other machine for compiling
[15:04] <StaRetji1> got it, thx
[15:05] <burek> :beer: :)
[15:05] <Durmush> ubitux: hmm nice, i'll remeber this tip
[15:05] <Durmush> burek: worked
[15:05] <StaRetji1> before that I might try look for compiled ffmpeg
[15:05] <StaRetji1> maybe there are some online
[15:05] <burek> Google is your best friend :)
[15:05] <StaRetji1> I need to make dreambox stream to rtmp from tuner
[15:06] <StaRetji1> yep, thx man
[15:42] <vivienschilis> Hi guys, is it possible with ffmpeg to copy a Closed caption stream when muxing to an MPEG TS file?
[15:43] <vivienschilis> I tried and its becomes converted to dvb_subtitle
[15:45] <silverrocker> how can I get the current position in the file I'm reading with av_read_frame ? and how do I know av_read_frame returned an error and when it reached the EOF
[16:00] <eightfold> howdy. i'd like to convert an mpeg-4 (h.264 + aac) to mpeg-2
[16:02] <eightfold> what is a reasonable bitrate for visual transparency?
[16:14] <Mavrik> eightfold: depends on what your input is
[16:14] <Mavrik> there's no catch-all option sadly
[16:16] <burek> silverrocker, you could read ffmpeg's source code to see how the function is used properly
[16:16] <burek> vivienschilis, can you type ffmpeg -i and use pastebin?
[16:17] <burek> eightfold, you can use -tune, though
[16:17] <burek> type x264 --help
[16:17] <vivienschilis> burek: sure
[16:17] <burek> and then use ffmpeg -i ... -vcodec libx264 -tune ...
[16:21] <vivienschilis> burek: here we go http://pastebin.com/WWBjM497
[16:40] <andrew_> Im having trouble receiving the test RTP stream with ffmpeg again. Im am trying to receive an RTP stream and have ffmpeg open it with an SDP file, then send it to ffserver. It was working on Friday, but today it's not. http://pastebin.com/F0EBFnUE
[16:43] <eightfold> burek: input stream is very high bitrate h.264
[16:43] <eightfold> burek:  does tune work for mpeg-2 output?
[16:45] <eightfold> i've done ffmpeg -i input.mp4 -vcodec mpeg2video -b 2500000 -ab 192000 -ar 48000 -ac 2 output.mpg
[16:45] <eightfold> now
[16:45] <eightfold> but are there something like ready made tuned presets for mpeg-2 output?
[16:48] <taqattack> i havea question about --enable-librtmp
[16:49] <taqattack> I want build ffmpeg with custom configuration for windows.
[16:50] <taqattack> I'm cross compiling from ubuntu for windows.
[16:50] <taqattack> So do I need to build rtmpdump/librtmp for ubuntu or windows?
[17:02] <burek> vivienschilis, your input has got subtitle stream that is copied to the output
[17:02] <burek> nothing has been converted, afaics
[17:04] <vivienschilis> burek, indeed, but it is not reconized by Quicktime after conversion for example
[17:04] <burek> yes i see the 2nd cmd output now
[17:04] <burek> it's definitely a bug
[17:05] <burek> is your input private video or something?
[17:05] <burek> can you upload it to incoming ?
[17:06] <burek> eightfold, I really don't know, I don't use mpeg2
[17:06] <burek> you can use -b for bitrate control, and for more options, you should google a little bit
[17:06] <burek> to see if there are specific options to be set
[17:07] <vivienschilis> burek: it's actually a known video by ffmpeg http://ffmpeg.org/trac/ffmpeg/ticket/846
[17:07] <vivienschilis> it's just that it has been updated
[17:07] <vivienschilis> and I think it's like that for a few video
[17:07] <burek> andrew_, you might have more luck with vlc for streaming
[17:08] <vivienschilis> I can try to build more Closed captioned video
[17:08] <burek> ffserver was (at least for me) a very difficult to set up to work properly
[17:08] <vivienschilis> but I didn't know if it's a bug or if Closed caption are not supported
[17:08] <burek> vivienschilis, you could just file a bug report with that pastebin copied to the report
[17:09] <vivienschilis> burek: sure
[17:09] <burek> well ffmpeg recognized it in the input
[17:09] <burek> and 'copy' should just copy everything to the output
[17:09] <burek> so I don't know.. it looks like a bug to me
[17:23] <Mosselmaniac> hi all
[17:25] <Mosselmaniac> I have a question. I have a movie (i can get that movie in _any_ format you would like). and i have an image (jpg). Now i want to create a new movie, with on the left side the image (jpg) and on the right side the movie. I want that to be rendered on a webpage (PHP preferably). Is that even possible and could FFMpeg help me with that? I'm stuck now.
[17:26] <Mavrik> Mosselmaniac, yes, you'll have to reencode the video, pad it with empty space  (pad video filter) and the overlay (overlay video filter) the image on that empty space
[17:26] <Mavrik> see http://ffmpeg.org/libavfilter.html#overlay-1
[17:27] <burek> Mosselmaniac, isn't it easier to crate 2 divs, one containing the img and 2nd the movie?
[17:43] <andrew_> burek: Thanks, but the reason that I am trying to use ffserver is that I need to port my solution to Android. From what I have heard, porting that part of the VLC functionality has been more difficult that porting the ffmpeg package. Do you know anything about that?
[17:43] <vivienschilis> thx burek I will do
[17:44] <Mosselmaniac> burek: yes it is easier, but i want it to display properly on iOS and android.
[17:44] <Mosselmaniac> iOS is opening a movie in a standalone video player
[17:45] <andrew_> Wait a second, is ffmpeg itself about to output RTSP?
[17:45] <Mosselmaniac> Mavrik: very cool.
[17:46] <Mosselmaniac> burek: understandd?
[17:47] <Mosselmaniac> Mavrik: what's my way to go now? :)
[18:13] <rra_> trying to convert mpegts video from my dvb-t usb stick using ffmpeg, but get an segmentation fault. http://pastebin.com/KvWi34nB
[18:32] <burek> rra_, try removing -vcodec before -i
[18:32] <burek> and -f if possible
[18:33] <rra_> burek, no difference
[18:33] <burek> Mosselmaniac, just do what Mavrik has suggested to you
[18:33] <burek> look into the section video filters
[18:37] <rra_> to me?
[18:39] <burek> rra_, did you try removing -f
[18:43] <rra_> burek, yes, I did
[18:45] <burek> did you try reading your input with vlc?
[18:45] <burek> just to make sure the input isn't broken
[18:48] <rra_> burek, saved it using cat and the file isn't broken.
[18:49] <burek> no
[18:50] <burek> open it live with vlc
[18:50] <burek> and see if it throws any erros
[18:50] <burek> errors
[18:52] <rra_> can't do, that's a server machine that doesn't have vlc
[18:52] <burek> well, you can always submit a bug report then :/
[18:52] <rra_> I saved the dvb-t video with cat to file, and it worked on my windows machine.
[18:52] <rra_> ah
[18:52] <rra_> where to?
[18:53] <rra_> are there any help forums where you don't submit bugs, but just try solving problems?
[18:53] <burek> you can try google
[18:53] <burek> or ffmpeg trac
[18:55] <rra_> .. used this mirch channel and google for a month trying to solve a problem, when ffmpeg crashed after several sec when decoding mpegts stream, but couldn't find a solution to that.
[18:56] <races> Hi everyone, I have a probably easy question for you guys, I have around 20 mp4 files that i want to concatenate, make it play a higher speed and fit a song to the file! I am pretty sure this is possible but I dont know where to to start.. Any help?
[18:59] <burek> rra_, the quickest way is to submit a bug report
[18:59] <burek> and bookmark it
[19:00] <burek> also, if possible, provide a sample file (using cat) to the ffmpeg's ftp server (incoming)
[19:00] <burek> http://ffmpeg.org/bugreports.html
[19:01] <burek> races, you are probably not looking for ffmpeg, but for a video editor
[19:01] <rra_> Burek, a problem is that it's asked to use the git version as well
[19:01] <burek> rra_, that's mandatory
[19:02] <burek> noone's gonna look into some bugs in an old version and waste time
[19:02] <burek> because it's probably fixed so far
[19:02] <races> Hi Burek, thanks... I was told that with ffmpeg I can do all this from the command line easily... with the movie editor I may lose quality during the edition.
[19:02] <rra_> burek, well had one of the bugs on a git version as well :)
[19:03] <burek> races, ffmpeg will still need to re-encode your video for what you want
[19:03] <rra_> burek, will try to submit the report
[19:03] <burek> so, either way you'll loose some quality
[19:03] <races> so if I use -sameq or same-quant, I will still lose quality?
[19:04] <burek> of course
[19:04] <burek> that's just a hint to the encoder that you would like the same quality
[19:04] <burek> but the video will still be reencoded
[19:04] <burek> and depending on the video itself
[19:04] <burek> it might or might not loose quality
[19:05] <races> ups, sorry... i am very new with this, either way it is not totally important to keep the same quality, I just want it to look good. I tried to do it in windows with the movie editor and when I increased the speed, the video looked really bad, almost as a slideshow... which video editor can you recommend me to do this in Linux?
[19:07] <burek> well, I'm not sure, really.. you could check doom9 forum
[19:07] <burek> however, if you just want to speed up video
[19:07] <burek> you can use video filters and setPTS
[19:07] <burek> but for concatenation, I'm afraid you'll have to use video editor
[19:08] <races> what about "cat" command? would this work?
[19:08] <burek> only with mpeg
[19:09] <burek> ffmpeg -i input.avi -vf "setpts=0.5*PTS" output.avi
[19:09] <burek> try that
[19:10] <races> awesome burek.... thank you very much... Is there anyway I can convert all the files in the same folder automatically, or do I have to repeat the same operation for every file?
[19:11] <burek> you can write a batch script
[19:11] <burek> with for loop
[19:11] <races> I will do that... thanks
[19:11] <races> thank you very much burek...
[19:12] <burek> :beer: :)
[19:32] <TazzNB> burek: with all the beer you will be very drunk soon :)
[19:34] <burek> I practice regularly :))
[19:35] <TazzNB> i noticed :)
[19:35] <TazzNB> I am compiling ffmpeg now to see if I can get that h264 webcam to work
[19:36] <burek> ok :)
[19:37] <TazzNB> while it compiles, since I don't want to "re-encode" the stream to h264, will the command that you gave me just copy it over. In other words, does ffmpeg go "Oh look, the output encoding is the same, so I will just put the frame into the udp stream" ?
[19:38] <burek> :)
[19:38] <burek> -vcodec copy will just copy bytes
[19:38] <burek> from input to output
[19:38] <burek> so it will just 'remux' so to say
[19:39] <TazzNB> so I will open it as libx264 (or h264) and make the target -vcodec copy
[19:40] <burek> ffmpeg -f video4linux2 -vcodec libx264 -i /dev/video0 -vcodec copy -f mp4 out.mp4
[19:41] <TazzNB> yip - that is what I had in mind :)
[19:41] <TazzNB> thx
[19:41] <burek> :)
[19:46] <TazzNB> ls
[19:46] <TazzNB> whoops :)
[19:47] <TazzNB> hhhmmm odd - same error
[19:49] <burek> can you please use pastebin.com, to show your command line and its output?
[19:49] <TazzNB> sure
[19:50] <TazzNB> http://pastebin.com/XX1GfrWK
[19:51] <TazzNB> http://pastebin.com/ZyjZQUEF <-- that is with h264 as the vcodec
[19:53] <TazzNB> http://pastebin.com/tpVwcMPM <-- that is the v4l2 output and setting it to use h264
[19:53] <TazzNB> at least - so I hope, but it does show a change
[19:54] <burek> oh
[19:54] <burek> ffmpeg -f video4linux2 -vcodec h264 -i /dev/video0 -vcodec copy -f mp4 out.mp4
[19:55] <TazzNB> that was the second paste bin
[19:55] <burek> wait
[19:58] <burek> ffmpeg -f video4linux2 -pix_fmt yuv422p -vcodec h264 -i /dev/video0 -vcodec copy -f mp4 out.mp4
[19:58] <burek> try that
[19:59] <TazzNB> same error, except it is now "pix_fmt 4"
[20:00] <burek> ffmpeg -f video4linux2 -pix_fmt vdpau_h264 -vcodec h264 -i /dev/video0 -vcodec copy -f mp4 out.mp4
[20:01] <TazzNB> nope :(
[20:01] <TazzNB> I have to run - I will reconnect from work (I can remote this machine)
[20:01] <TazzNB> thx for the help so far
[20:02] <burek> ok o/
[21:06] <Papierkorb> Hello. I want to use libavcodec and friends in my current project, but I'm having a hard time finding working examples. All I found until now are outdated ones - and the api-example.c one, which only handles video streams, but no demuxing. I'd be happy with a source on how to render some frames from a mkv file and save them as image (or somehow show them).
[21:27] <andrew_> ls -l
[21:33] <tyho> So i am trying to take a screenshot with this: ffmpeg -ss 00:10:00 -vframes 1 -i Filename.avi/mkv -y -f image2 screenshot2.png but I get endless lines of this: frame=    0 fps=  0 q=0.0 size=      -0kB time=10000000000.00 bitrate=  -0.0kbit
[21:47] <pasteeater> tyho: try moving -vframes 1 as an output option
[22:11] <rr> ffmpeg smetimes converts my dvb-t stream without problems, but most of the time it crashes. What should I look for? Could it be just because the ffmpeg gets at the newest frame of stream and thinks that it's the end of the file?
[22:13] <pasteeater> rr: can you show an example of the crash?
[22:13] <pasteeater> use a pastebin site to show your ffmpeg command and the complete console output
[22:17] <rr> pasteeater, just a second, have to reboot the machine.
[22:19] <rr> pasteeater, wierd, can't re-create the error
[22:25] Action: pasteeater makes dumb windows reboot joke
[22:40] <tyho> pasteeater, does not fix
[22:49] <pasteeater> tyho: use a pastebin site to show your ffmpeg command and the complete console output
[23:08] <elinenbe> 'ello mates!
[23:08] <elinenbe> Anyone around?  I've got a question.
[23:09] <elinenbe> I'm trying to do silence detection via a filter.  I can do it without problem on a static file, but I can't figure out how to pipe to a filter.
[23:09] <elinenbe> Here's what I've got...
[23:10] <elinenbe> ffmpeg -y -f lavfi -i amovie=elvisradio.flv,silencedetect=n=-23dB:d=1 -f null -
[23:10] <elinenbe> however, ultimately I'd like to do it like
[23:10] <elinenbe> rtmpdmp .... blah blah blah | ffmpeg -y -f lavfi -i amovie=pipe:0,silencedetect=n=-23dB:d=1 -f null -
[23:11] <elinenbe> but that doesn't work.
[23:11] <elinenbe> Is there anyway to pipe to a filter?
[23:22] <tyho> pasteeater, http://pastebin.com/AT1KePnP
[23:26] <pasteeater> tyho: that's a really old ffmpeg version. what is your distro?
[23:27] <tyho> idk, it is not me who manages the server
[23:29] <pasteeater> probably debian squeeze.
[23:29] <tyho> 1 sec, ill ask
[23:30] <tyho> pasteeater, linux, debian stable
[23:30] <tyho> so yeh
[23:30] <pasteeater> you can probably compile a new ffmpeg and not install it, but still use it
[23:30] <pasteeater> or just replace the ass old one with a recent compiled ffmpeg
[23:31] <pasteeater> or try moving -ss as an output option
[23:31] <pasteeater> or try some other image format instead of png
[23:31] <pasteeater> http://ubuntuforums.org/showpost.php?p=6963607&postcount=360
[23:32] <pasteeater> skip the libsdl1.2-dev libx11-dev libxext-dev libxfixes-dev dependencies as i'm guessing you're using a headless server
[23:34] <pasteeater> if you're only using ffmpeg to get screenshots, then you can simplify that guide
[23:35] <pasteeater> but i don't know your use case
[23:39] <tyho> pasteeater, ill try and work my way through it
[23:42] <rr> If you have time, please take a look at my ticket http://ffmpeg.org/trac/ffmpeg/ticket/1224#comment:1
[23:44] <elinenbe> Anyone around?  I've got a question.  I'm trying to do silence detection via a filter.  I can do it without problem on a static file, but I can't figure out how to pipe to a filter. Here's what I've got: "ffmpeg -y -f lavfi -i amovie=elvisradio.flv,silencedetect=n=-23dB:d=1 -f null -"  However, ultimately I'd like to do it like "rtmpdump .... blah blah blah | ffmpeg -y -f lavfi -i amovie=pipe:0,sil
[23:44] <elinenbe> encedetect=n=-23dB:d=1 -f null -" but that doesn't work. Is there anyway to pipe to a filter?
[23:54] <pasteeater> elinenbe: try the ffmpeg-user mailing list.
[00:00] --- Tue Apr 17 2012