[Ffmpeg-devel-irc] ffmpeg.log.20140204

[burek]

[01:31] <mbhatnag> Hello. I am running ffmpeg version 2.1.1. I am trying to convert a h264,ac3 .mkv to a vp8,ogg .webm file with constant bitrate. the command I am using is "ffmpeg -i video.mkv -c:v libvpx -b:v 450k -minrate 450k -maxrate 450k -c:a libvorbis -b:a 48k -ac 2 video.webm". the output video file that is produced always has a very high bitrate (1000+kbps). I would like some help with making ffmpeg produce a constant bitrate file. the source file has a size of
[01:31] <mbhatnag> 1280x714 and I am not altering that.
[01:40] <atari_> Does anyone know if there's an inverse telecine filter for 1.2.5 or before on that same branch? There seems to be no pullup or fieldmatch filter, until the later 2* releases. Only issue is that I'm using gentoo and would like to be able to just use the stable version in their repos because it's easier to maintain, but the only thing missing is an inverse telecine filter.
[01:42] <Demon_Fox> I believe the hardcoded tables are slow
[02:00] <znf> Is it normal that when I create a video I get a pixel format of "rgba", but when I do ffmpeg -i I get back "argb"?!
[02:03] <Demon_Fox> It probably needs some kind of conversion filter or something
[02:03] <Demon_Fox> to take to yuv
[02:04] <znf> Hmmm
[02:04] <znf> this thing is so annoying :-(
[02:05] <znf> I can't seem to create a semi-transparent progress bar
[02:18] <Demon_Fox> ?
[02:24] <znf> Actually I sort of made it :P
[02:24] <znf> http://i.imgur.com/HIx7RiD.jpg
[02:24] <znf> I created a progress bar animation
[02:24] <znf> but it's a bit too on the white side :-/
[02:31] <dbro> Cross-compiled FFmpeg for Android, but can't get libavformat to properly link to librtmp
[02:32] <dbro> my searching has only turned up others' misery on the subject, is there any hope?
[02:32] <dbro> this sort of sums it up: http://stackoverflow.com/questions/20721445/undefined-reference-when-compiling-ffmpeg-with-librtmp-on-android
[03:07] <znf> Oh. Drawbox has no time or frame parameters. Bummer.
[03:08] <znf> Can I somehow else get the current framenumber?
[07:34] <znf> How would I sync a video with audio of a different duration? Let's say I have a video of 1 minute but an audio file of 3 minutes; I need them to start both at 00:00 and end at the duration of the audio, but without looping the video.
[11:50] <dannyzb> guys , i'm designing a platform that is going to need to convert 3000-4000 hd(720p) videos a day from avi to MP4.. what is the best setup for that ? (hardware-wise)
[11:50] <dannyzb> should i stick to ffmpeg or are there faster hardware products?
[11:51] <JEEB> the best hardware encoder is haswell's QS encoder so far, ~200fps or so? You can get a similar amount of speed with the CPU and libx264 with such a CPU as well, if not even faster.
[11:52] <JEEB> so in theory I guess you could set up two things? One running on QS, the other on the CPU? Depends on how good quality QS gives out.
[11:54] <JEEB> you'd probably have to code your own thing for the QS part and if you need *nix then I have no idea how good the QS SDK is there
[12:01] <Samiarn> is there anyone who can help me please, im trying to use ffmpeg on ubuntu server 12.04
[12:03] <ePirat> hello
[12:03] <ePirat> Is ffmpeg capable of handling mvc h264?
[12:04] <JEEB> Samiarn, 12.04 comes with an old version of Libav, not FFmpeg. Thus you'll first want to try the avconv binary (support from #libav ), and if that doesn't work you can then try static binaries from FFmpeg
[12:04] <JEEB> (available from the downloads)
[12:04] <JEEB> ePirat, no -- there is no decoder done and merged yet
[12:05] <Samiarn> JEEB incase of ubuntu versions, which do you recommend?
[12:05] <Samiarn> or should i use completely different OS ? CentOS perhaps?
[12:06] <JEEB> all of the current stable ones have an old Libav, 14.04 will be having a newer one. CentOS will be ancient as well.
[12:06] <JEEB> I wouldn't change the OS basically, I'd either use a static binary or build it myself
[12:16] <SenseiV183> http://pastebin.com/T2PEiAcK
[12:17] <SenseiV183> can someone help me with this pastebin?
[12:18] <SenseiV183> I am trying to transcode gopro footage to lossless jpeg2000
[12:18] <SenseiV183> for an intermediate file.
[12:20] <SenseiV183> With Wav audio
[12:20] <SenseiV183> wrapped in an avi
[12:20] <JEEB> that's not wav
[12:21] <SenseiV183> I have a hard time finding the format commands
[12:21] <SenseiV183> wavpack is what I found
[12:21] <JEEB> that's because it's one of the pcm things, wav just contains raw pcm :P
[12:21] <SenseiV183> I only found 5 bit pcm lol
[12:22] <JEEB> anyways, if you need this for editing and you need something lossless I recommend Ut Video, it's available as VFW and MF components on windows and for QT on OS X
[12:22] <relaxed> SenseiV183: you probably want -c
[12:22] <relaxed> er, -c:a pcm_s16le
[12:22] <SenseiV183> I want to do everything in linux
[12:23] <SenseiV183> The souce is 48khz 64bit mp4
[12:23] <JEEB> I don't see how your current selections are any better than what I'm noting
[12:24] <JEEB> ffmpeg -i welp.mp4 -c:v utvideo -c:a pcm_s16le out.wav
[12:24] <JEEB> uhh
[12:24] <JEEB> avi
[12:24] <JEEB> :P
[12:24] <JEEB> if you want to do it all on lunix, most OSS editors packaged will most probably have very old libavcodec/-format libraries tho
[12:25] <JEEB> so if you have such
[12:25] <JEEB> you might want to use ffvhuff instead
[12:25] <JEEB> of Ut Video
[12:25] <JEEB> because that's a very old lossless format
[12:25] <SenseiV183> Jeeb is that format good for Blender?
[12:25] <SenseiV183> ut video?
[12:26] <JEEB> depends on how old the libavcodec/-format libraries linked to it are
[12:26] <SenseiV183> probably new.
[12:26] <JEEB> if you are guessing you have no idea
[12:27] <SenseiV183> Blender is an updated static build
[12:27] <JEEB> that still doesn't mean it uses new APIs that come with newer versions
[12:27] <JEEB> but feel free to try
[12:27] <JEEB> if the clip isn't long
[12:27] <JEEB> you can first encode with ut video
[12:27] <JEEB> then if that isn't good, you can move to ffvhuff
[12:28] <SenseiV183> Most souce files will be 2 gigabytes
[12:29] <SenseiV183> I have a dual core but want to make the highest quality video in linux no matter how many days I have to wait for encoding
[12:29] <JEEB> basically ffvhuff has been around since 2007 (?) or so, and Ut Video decoder was added in 2011
[12:30] <JEEB> also that last comment of yours has nothing to do with editing footage
[12:30] <JEEB> it has everything to do with when you are creating a final non-lossless file for the end users
[12:30] <SenseiV183> Are they friendly formats for footage you like to reverse and speeedup affects and compositing lossless friendly?
[12:31] <JEEB> ffvhuff and ut video are both intra-only :P
[12:31] <SenseiV183> Yes, No B frames.
[12:31] <JEEB> ARGH
[12:32] <JEEB> yes, you are right that intra-only means there are no bipredicted pictures, but intra-only means that there's only INTRA prediction, aka only prediction within a single picture, not within a GOP (group of pictures), which is called INTER
[12:33] <SenseiV183> So what container and file formats and do the ffvhuff (colorspace??) and the ut codec go in?
[12:33] <JEEB> also even for editing generally a short GOP (like three or so pictures) is OK, btw.
[12:33] <SenseiV183> jeeb I will need to set the gop to 1    -g 1 I noticed makes files read backwards correctly
[12:34] <JEEB> well, as I goddamn said
[12:34] <JEEB> ffvhuff and ut video are intra only formats
[12:34] <JEEB> also ffvhuff and ut video are generally seen in AVI
[12:34] <SenseiV183> lol.  I was typing before I could read all that came out this end
[12:35] <JEEB> colorspace-wise Ut Video supports 4:2:0, 4:2:2 YCbCr and RGB/RGBA
[12:35] <JEEB> ffvhuff supports at least 4:2:0 and possibly something else, I don't remember those all :P
[12:35] <SenseiV183> I'ts coming from colorspace yuv420p.
[12:36] <JEEB> yes, since your goddamn input is main profile H.264, which is 4:2:0 only. You don't have to set anything, unless you specifically want to have the stuff in some other colorspace
[12:37] <JEEB> it's a lossless, intra-only format so you really don't have to set much settings at all
[12:38] <SenseiV183> makes great sense.  I've been up too late.  Thank you.  I will look in to this info.
[12:38] <JEEB> anyways, you can just make a test sample with ffmpeg -i welp.mp4 -c:v utvideo -c:a pcm_s16le out.avi
[12:38] <JEEB> and then try loading that up
[12:38] <JEEB> if that doesn't work
[12:39] <JEEB> then switch to -c:v ffvhuff
[12:40] <SenseiV183> JEEB, Thanks a bunch.  I sure will.  I'm about to set away and leave this Xchat up to look at later.  Got to rest.
[12:49] <relaxed> SenseiV183: add "-t 30" after the input for a 30 second sample
[12:55] <Samiarn> Seems like my ffmpeg / avconv not working..
[12:56] <Samiarn> after typing the command, i only get to see
[12:56] <Samiarn> version, Copy right
[12:56] <Samiarn> Built on Nov and nothing more,
[12:57] <Samiarn> why isnt it responding?
[12:58] <JEEB> if you are using the packaged one, I recommend you move towards #libav and pastebin your command and its full output there
[13:15] <Jenser> hi there. i am searching for a way to combine two (or more) mpegts files to one new file with correct "gop time code". is there a fast and lossless way to rewrite this timestamps (something with concat ...)
[13:18] <SenseiV183> JEEB, -b:a 64k not taking effect. Stream #0:1(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono, s16, 768 kb/s (default)
[13:19] <SenseiV183> I will try right now a shot converted clip in blender....
[13:20] <JEEB> I TOLD YOU WHAT KIND OF COMMAND YOU NEEDED
[13:20] <JEEB> HOW THE FUCKING HELL DO YOU SET A BIT RATE FOR RAW AUDIO
[13:20] <JEEB> sorry for the caps
[13:27] <SenseiV183> JEEB, I used the command it worked fine.  I tried to add something too it and see what you mean I can't do that.  Yeah.  I've had my head in this all day and time to call it a night.
[13:27] <dannyzb> JEEB: quicksync is much faster than credited .. but thats impractical since I'd need a windows machine for that ( or an uber-complex converter that mixes FFMPEG and QS libraries )
[13:28] <dannyzb> I was talking of transcoder boxes , the specially designed circuits .. are those any good?
[13:28] <JEEB> no
[13:28] <JEEB> I wouldn't touch those with any of my fingers
[13:28] <dannyzb> so at the end of the day , we're stuck with ffmpeg over intel ,ideally?
[13:29] <JEEB> also as far as I know haswell QS is as fast as I noted, the less good modes IIRC weren't really faster
[13:29] <JEEB> and that's pretty much as fast bearable quality you can get
[13:29] <JEEB> (HW encoders generally don't go further than 'bearable')
[13:30] <dannyzb> JEEB: from tests i've run , decoding performance is even more important than encoding performance .. and decode->encode is much faster with quicksync due to the saved memory bandwidth
[13:30] <JEEB> yes, but that completely depends on what you have there
[13:30] <dannyzb> 1080p/720p high-quality
[13:30] <dannyzb> those things take A-LOT of time to decode
[13:30] <JEEB> which says EXACTLY NOTHING
[13:30] <JEEB> about what it is
[13:30] <JEEB> if it's something the hardware can decode, sure
[13:31] <dannyzb> h264 / avi (probably XVID)
[13:31] <JEEB> yeah...
[13:31] <JEEB> xvid is MPEG-4 Part 2 and you said H.264 / avi
[13:31] <JEEB> gg
[13:31] <dannyzb> nope
[13:31] <dannyzb> i meant both the options
[13:31] <dannyzb> most of the files are MPEG4
[13:31] <dannyzb> others are h264
[13:32] <JEEB> well, yeah -- that says something
[13:32] <dannyzb> god knows why people still use that crap format -_-
[13:32] <JEEB> generally the H.264 decoder shouldn't be blocking your encoder too bad
[13:32] <JEEB> it's generally something else that's blocking
[13:32] <JEEB> like resizing or whatever in the middle
[13:32] <dannyzb> the bigger the video the longer it takes to transcode ( everything transcodes to h264 720p eventually )
[13:33] <dannyzb> wouldn't that point to the decoding as the slowing factor?
[13:34] <JEEB> yes, the more content there is the longer it takes, but that still doesn't change what is the bottleneck
[13:35] <dannyzb> in any case that wasn't my main question .. what hardware should i use for a powerful transcoding machine , and stay cost effective ? (high number of processors isn't a problem because i convert many videos at the same time )
[13:36] <JEEB> intel, haswell or ivy, depends on which you can get a better price/speed ratio off of (haswell is generally 5% or so? faster than ivy)
[13:37] <dannyzb> I'd probably use Xeon .. so last-prev gen only i guess
[13:37] <dannyzb> is xeon inferior to I7 in conversion performance ? (same architecture , both highest end)
[13:38] <dannyzb> and how much does memory clock speed affect ffmpeg?
[13:38] <JEEB> no idea, I've never had much hardware around myself to test
[15:13] <xda_dentex> Hello everyone.
[15:15] <xda_dentex> I have a Q. about a couple of FFmpeg version I compiled for Android. They works. The question is on some comp switches I used.
[15:15] <xda_dentex> May I?
[15:15] <JEEB> feel free
[15:15] <JEEB> if it's long, pastebin it
[15:15] <xda_dentex> Hi. Thanks.
[15:16] <xda_dentex> ok
[15:16] <xda_dentex> http://pastebin.com/w8xfCKpx
[15:16] <xda_dentex> the two configs:
[15:17] <xda_dentex> they are for armva-a and for armv7-a-NEON
[15:17] <xda_dentex> they are the same exact lenght as files.
[15:17] <xda_dentex> How can it be possible?
[15:17] <xda_dentex> if the are compiled differently, I mean
[15:23] <xda_dentex> FOUND IT!!!
[15:24] <xda_dentex> thanks anyway!
[15:24] <xda_dentex> (double "--prefix=" switch, I was overwriting a version with the other one)
[15:25] <JEEB> :)
[15:25] <xda_dentex> good it took me just half an hour ;)
[15:25] <JEEB> sometimes it's simple things like that
[15:26] <xda_dentex> kinda new to compilation
[15:26] <JEEB> also congratulations on not having completely pants-on-head retarded configure settings
[15:26] <xda_dentex> Have a nice day guys!
[15:26] <JEEB> although I think -fPIC is enabled by --enable-pic
[15:26] <JEEB> and I'm not sure if you want software float unless that's all you get on those things
[15:28] <xda_dentex> goodbye.
[15:28] <xda_dentex> see U next time
[15:29] <xda_dentex> eheh. DuckDuckGo is your friend, in those tasks.
[15:29] <xda_dentex> (used to say Google, before) ;)
[15:30] <xda_dentex> Anyway I must admit that in my case if mostly a "trial and error" process
[15:34] <xda_dentex> makes sense. Thanks.
[15:34] <xda_dentex> closing. See U. ;)
[16:38] <reloadedc4> Hey guys, i have a bit of an odd/advanced question
[16:38] <reloadedc4> anybody on?
[16:39] <relaxed> just ask
[16:39] <spaam> only if you tell us what kind of special question you have
[16:39] <reloadedc4> ok so I'm using ffmpeg to record & transcode a live mjpeg stream from my security  webcam
[16:40] <reloadedc4> its called programatically when motion is detected on my insteon network
[16:40] <reloadedc4> so when a motion sensor is tripped, ffmpeg fires up and starts saving the footage from the webcam
[16:40] <reloadedc4> but what i want to do is dynamically control the length of time that ffmpeg records
[16:41] <reloadedc4> i can set -t option to 10 seconds, but i would like to somehow dynamically extend that by 10 seconds each time motion is detected
[16:41] <reloadedc4> is there a way to increase the value of -t while ffmpeg is running?
[16:42] <reloadedc4> (did i explain the question clearly?)
[16:42] <spaam> can you get a notification when there is no moment or something like that from the camera ?
[16:42] <reloadedc4> yes i can
[16:43] <spaam> maybe you can just start record the stream. then send some kind of kill signal to ffmpeg process and stop recording?
[16:43] <reloadedc4> the motion sensor fires two messages. 1 when motion is detected and 1 after its been still for X seconds
[16:45] <reloadedc4> spaam, i tried to do that first but the problem i ran into was if the kill command is sent too soon after ffmpeg starts, i get a corrupt movie file
[16:46] <reloadedc4> not sure why
[16:46] <spaam> what kind of signal did you send?
[16:46] <reloadedc4> pkill ffmpeg
[16:46] <reloadedc4> so 15?
[16:46] <reloadedc4> SIGTERM
[16:50] <relaxed> reloadedc4: killall -INT ffmpeg
[16:50] <relaxed> seems to work
[16:50] <reloadedc4> ok, let me give it a shot
[16:50] <relaxed> even for .mp4
[16:51] <spaam> kill -INT $(pidof ffmpeg)
[16:58] <reloadedc4> hmm, no joy. i end up with a 262 byte file that i can't open
[16:58] <reloadedc4> i thought it was going to work
[16:58] <reloadedc4> the ffmpeg log shows: Received signal 2: terminating.
[16:59] <spaam> can you show us the commandline?
[16:59] <reloadedc4> just a sec, ill create a temporary user/pass for the camera
[17:02] <reloadedc4> ffmpeg -y -f mjpeg -i "http://temporary:password@25ssrdcam.mooo.com/nphMotionJpeg?Resolution=640x480&Quality=Standard" -b:v 1500k -vcodec libx264 /tmp/test.mp4 </dev/null >/dev/null 2>/tmp/ffmpeg.log &
[17:03] <relaxed> what is ">/dev/null" doing?
[17:04] <reloadedc4> i read that from the ffmpeg site trying to figure out how to get it to run in the background
[17:04] <reloadedc4> 2>/tmp/ffmpeg.log makes it send the output to my logfile
[17:04] <relaxed> I think only </dev/null is needed
[17:05] <reloadedc4> i would show you, but it seems the trac site is down
[17:06] <reloadedc4> https://trac.ffmpeg.org/wiki/Using%20FFmpeg%20from%20PHP%20scripts
[17:06] <reloadedc4> i think thats the link where i got the example
[17:06] <relaxed> works here without >/dev/null
[17:07] <reloadedc4> ok
[17:08] <reloadedc4> here is my actual program: http://pastebin.com/iweMYeLc
[17:08] <reloadedc4> my test.mp4 file is 262 bytes, unreadable
[17:11] <reloadedc4> its because of the lag between ffmpeg and the camera. if i change the call and use -t 10 it works fine
[17:20] <relaxed> reloadedc4: because ffmpeg is multithreaded I think you need to use killall
[17:21] <reloadedc4> relaxed: that's what the script was doing. killall -INT ffmpeg
[17:22] <relaxed> you lost me at php
[17:24] <reloadedc4> ok, forget the php script
[17:24] <reloadedc4> if i just run ffmpeg -y -f mjpeg -i "http://temporary:password@25ssrdcam.mooo.com/nphMotionJpeg?Resolution=640x480&Quality=Standard" -b:v 1500k -vcodec libx264 /tmp/test.mp4 </dev/null >/dev/null 2>/tmp/ffmpeg.log &
[17:24] <reloadedc4> and then wait 1 second and then run killall -INT ffmpeg
[17:24] <reloadedc4> i get a garbage video file
[17:25] <relaxed> bash shell?
[17:25] <reloadedc4> yes
[17:25] <reloadedc4> but if i call ffmpeg with a -t 1 parameter, it works fine. i get a 1 second video file
[17:26] <relaxed> remove >/dev/null
[17:26] <reloadedc4> ah crap, let me try
[17:26] <relaxed> I already told you this
[17:27] <reloadedc4> i tried once and then i copied /pasted from the wrong place
[17:29] <reloadedc4> ok, made no difference at all
[17:32] <relaxed> pastebin the ffmpeg.log
[17:35] <relaxed> ffmpeg -y -f mjpeg -i "http://temporary:password@25ssrdcam.mooo.com/nphMotionJpeg?Resolution=640x480&Quality=Standard" -b:v 1500k -vcodec libx264 /tmp/test.mp4 </dev/null 2>/tmp/ffmpeg.log & sleep 10; killall -INT ffmpeg
[17:36] <reloadedc4> http://pastebin.com/dBrSgFTJ
[17:37] <reloadedc4> relaxed, that gives you a useable video file?
[17:39] <relaxed> yes, but I'm using a more recent version that you. Can you try this build? http://johnvansickle.com/ffmpeg/
[17:40] <reloadedc4> I'm on OSX, i think ill have to compile from source
[17:42] <relaxed> er, can you try it on a local file?
[17:44] <reloadedc4> its a timing thing. on a local source file it will probably work fine
[17:44] <reloadedc4> i noticed if i run this from a machine thats local to that camera the time it takes to run is 1/2
[17:45] <relaxed> sure it's faster
[17:45] <reloadedc4> i think ffmpeg is exiting before it captures any frames
[17:45] <reloadedc4> when i run it remotely that is
[17:50] <bmhm> Hi. A more ore less quick question. If I try to record from my usb video grabber, ffmpeg stops due to too small frames. Mplayer just continues. How can I enforce this behaviour on ffmpeg?
[17:52] <relaxed> reloadedc4: Try this:  ffmpeg -y -probesize 100000 -analyzeduration 0 -f mjpeg -i "http://temporary:password@25ssrdcam.mooo.com/nphMotionJpeg?Resolution=640x480&Quality=Standard" -b:v 1500k -vcodec libx264 -pix_fmt yuv420p -y out.mp4 </dev/null 2>ff.log & sleep 15; killall -INT ffmpeg
[17:52] <bmhm> a similar issue is this: http://ubuntuforums.org/showthread.php?t=2070480
[17:57] <relaxed> reloadedc4: I guess the real problem is $(sleep 15) is the time since ffmpeg was sent to the background
[17:58] <relaxed> if this code is running on the machine with the camera you shouldn't have too much lag
[18:03] <bmhm> relaxed: can you by chance say sth to my issue?
[18:05] <bmhm> relaxed: ok, I'll be returning soon - don't have the exact output right now. thanks.
[18:06] <relaxed> bmhm: first make sure you're using a recent version.
[18:07] <bmhm> ok, thanks. See you, bye!
[18:21] <bornpilot> znf ffmpeg or avonc are they equal in their output?
[18:22] <znf> bornpilot, depends on what you mean by equal
[18:22] <bornpilot> System resources and quality.
[18:22] <bornpilot> that is usage of system resources.
[18:23] <znf> I don't think anyone has done a benchmark between the two that is relevant
[18:32] <bornpilot> thanks znf
[18:54] <TSM> what is the state of play with ffmpeg hardware encoding
[19:04] <joecool> still can't build ffmpeg with quvi support on libquvi-0.9.x
[19:42] <reloadedc4> hey relaxed, you still on?
[19:47] <gabamnml> how can I convert from gif to mp4 and it work in Flash?
[19:47] <spaam> aha
[19:47] <spaam> bah
[19:49] <gabamnml> try -vcodec libx264 but did not work
[19:49] <gabamnml> just works in VLC
[19:51] <Goles> :D
[19:51] <gabamnml> :)
[19:53] <znf> gabamnml, you need to specify a frame-rate for .gif's, afaik
[19:55] <gabamnml> this is my code http://pastebin.com/KYeKfNwe
[20:04] <Goles> fflogger: wouldn't gabamnml need to specify a frame rate? I see nothing wrong with his code
[20:17] <llogan> Goles: fflogger is a bot
[20:18] <llogan> gabamnml: re-read the message from fflogger
[20:19] <SirCmpwn> wiki down?
[20:19] <llogan> yes
[20:19] <SirCmpwn> :(
[20:26] <llogan> SirCmpwn: what did you want to look up?
[20:27] <SirCmpwn> I went to archive.org
[20:35] <facugaich> Hi! I wanted to know if you guys have any plans for GSoC 2014
[20:37] <llogan> facugaich: yes, we will apply again this year. are you a student?
[20:38] <facugaich> llogan: Yeah
[20:38] <llogan> we are working on the ideas page, but the server is currently down for maintenance: https://trac.ffmpeg.org/wiki/FFmpegSummerOfCode2014
[20:38] <facugaich> Ah, right, I tried accessing that URL but it wasn't working
[20:39] <facugaich> I'll keep an eye on it, thanks
[20:40] <llogan> unfortunately it's currently an "orphaned" link so there is probably no cached version anywhere, AFAIK
[20:40] <llogan> facugaich: is there something you're interested in particular?
[20:43] <facugaich> llogan: Well... I was planning on doing it as a CS project, so I was looking for something with a little bit of academic interest
[20:44] <llogan> facugaich: hopefully the server will be back soon. if you have any questions you can ask them in #ffmpeg-devel
[20:44] <facugaich> llogan: Got it, thanks!
[20:45] <Fusl> can someone tell me if -analyzeduration 0 is useless when reading from pipe:0 with a (pcm_)u8 format?
[20:45] <Fusl> i know when i omit -analyzeduration 0 on (lib)mp3(lame) format, it keeps defaulting to 5 seconds but i'm not sure on u8
[20:58] <dbro> when I use ffmpeg with librtmp, is there a way to decouple networking from the encoding/muxing threads?
[21:42] <AleXoundOS> Hi. I get lots of  "Non-monotonous DTS in output stream" messages when streaming to rtmp (twitch). While these messages appear the stream gets frozen. I use libx264 and aac codecs on the input, convert aac to mp3 and copy video. Output container is flv. How can I fix this?
[21:46] <AleXoundOS> forgot, ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developers
[21:59] <AleXoundOS> http://pastebin.com/h2TXL1pn
[23:20] <Wa4> how can I use a videofilter like crop?
[23:20] <Wa4> --vf or --video-filter don't work?
[23:21] <Wa4> ffmpeg.exe -i input -vf crop:0,2,0,2/resize:width=720,height=404,method=spline -vcodec libx264 -preset slow -acodec copy output.ts
[00:00] --- Wed Feb  5 2014