[Ffmpeg-devel-irc] ffmpeg.log.20150112

[burek]

[00:16] <Darby_Crash> someone can help me?
[00:17] <Darby_Crash> i have a script to compile ffmpeg
[00:17] <Darby_Crash> but this doesn't compile also ffplay
[00:18] <Darby_Crash> i have only ffmpeg
[00:18] <Darby_Crash> i've installed sdl
[00:21] <xreal> Darby_Crash: still the same problem? :(
[00:21] <xreal> Darby_Crash: Did you try to run ./ffplay in the building or binary directory? Perhaps it just didn't get installed?
[00:24] <Darby_Crash> ffplay don't exist
[00:25] <xreal> Darby_Crash: let me start a clean debian, ok?
[00:25] <xreal> Darby_Crash: which script are you using?
[00:26] <Darby_Crash> wait
[00:29] <Darby_Crash> http://pastebin.com/qPB1qZkJ
[00:29] <Darby_Crash> this is the acript
[00:29] <Darby_Crash> *s
[00:29] <Darby_Crash> xreal
[00:30] <xreal> ok, it'll take some minutes to download
[00:30] <Darby_Crash> ok
[00:32] <xreal> Darby_Crash: what's your env.source ?
[00:32] <xreal> ah, you're using this: https://github.com/stvs/ffmpeg-static/blob/master/env.source
[00:32] <Darby_Crash> is for debug
[00:32] <Darby_Crash> right
[00:32] <Darby_Crash> but i have edited it
[00:32] <xreal> Darby_Crash: we're doing debugging, aren't we? :)
[00:33] <Darby_Crash> :))
[00:33] <Darby_Crash> anyway thanks xreal for support
[00:33] <Darby_Crash> ;)
[00:34] <Darby_Crash> i have edited the script
[00:34] <Darby_Crash> for include ffplay
[00:34] <Darby_Crash> changed the source of ffmpeg from 2.3.3
[00:34] <xreal> my debian says: .: 32: Can't open ./env.source
[00:34] <xreal> yeah, I know
[00:35] <Darby_Crash> ok ok
[00:35] <Darby_Crash> you must run ./build.sh
[00:35] <Darby_Crash> take a look to README
[00:36] <xreal> I know, but it wants the environment, so it's not for debugging only :)
[00:36] <Darby_Crash> i have also included source of sdl
[00:36] <xreal> I know.
[00:36] <xreal> It's downloading, takes some minutes.
[00:36] <Darby_Crash> :)
[00:39] <xreal> Building starts.
[00:40] <Darby_Crash> ok
[00:41] <xreal> strip: 'libgtest.a': No such file
[00:41] <xreal> problems with vp8/vp9
[00:42] <xreal> http://stackoverflow.com/questions/20085443/libvpx-in-mingw-bad-file-number
[00:42] <xreal> --disable-unit-tests
[00:42] <xreal> let's try it again
[00:43] <Darby_Crash> apt-get install build-essential curl tar
[00:43] <Darby_Crash> there are dependences
[00:45] <xreal> doesn't have anything to do with that :)
[00:45] <xreal> it's a compiler bug
[00:46] <Darby_Crash> the script work fine for me
[00:46] <Darby_Crash> but compile only ffmpeg
[00:46] <xreal> Darby_Crash: SDL is compiling right now, brb
[00:46] <Darby_Crash> sorry for my english but i'm italian
[00:47] <xreal> building ffmpeg
[00:47] <xreal> no problem I'm German
[00:47] <xreal> hundrets of deprecated messages when building ffmpeg
[00:51] <Darby_Crash> yes i known
[00:52] <Darby_Crash> but the source is 2.5.3
[00:52] <xreal> oops, it's done already
[00:52] <xreal> ffplay was built without a problem
[00:52] <xreal> it's in target/bin
[00:53] <Darby_Crash> how have you do it?
[00:53] <xreal> nothing :)
[00:53] <xreal> ./build.sh
[00:53] <xreal> your build.sh.
[00:53] <xreal> from pastebin
[00:53] <Darby_Crash> really?
[00:53] <xreal> yep
[00:54] <xreal> ffplay version 2.5.3-static Copyright (c) 2003-2015 the FFmpeg developers
[00:54] <xreal>   built on Jan 12 2015 00:52:29 with gcc 4.4.5 (Debian 4.4.5-8)
[00:54] <Darby_Crash> are you on Jessie?
[00:55] <Darby_Crash> or Wheezy?
[00:56] <Darby_Crash> xreal
[00:57] <xreal> Squeeze :D
[01:00] <Darby_Crash> :'(
[01:01] <xreal> I've used everything from the GIT, but your build script.
[01:01] <xreal> Did you change anything else?
[01:03] <Darby_Crash> what have you changed?
[01:04] <Darby_Crash> xreal
[01:05] <xreal> nothing, like I said.
[01:05] <xreal> I've download all the files from the git and used your build.sh from pastebin.
[01:06] <Darby_Crash> can you send me a pastebin
[01:06] <Darby_Crash> ?
[01:07] <Darby_Crash> please
[01:07] <xreal> I did not change anything :)
[01:07] <xreal> I used _your_ script
[01:09] <xreal> http://pastebin.com/ZBfDRB3m
[01:11] <Darby_Crash> what have you grab from git?
[01:12] <xreal> it's all in the pastebin, like I wrote.
[01:12] <xreal> do, as I wrote in there
[01:12] <xreal> I've written down all the steps
[01:16] <xreal> I don't understand, why ffmpeg doesn't have a benchmarking function without inputdata.
[01:24] <xreal> Darby_Crash: I've changed your script to disable the buggy test and to enable ffmpeg drive!
[01:24] <xreal> devices*
[01:25] <Darby_Crash> how to do ffmpeg devices
[01:25] <Darby_Crash> ?
[01:25] <Darby_Crash> thanks xreal ;)
[01:25] <xreal> Darby_Crash: does it work?
[01:26] <Darby_Crash> now i am compiling on ubuntu 14.04 virtual machine
[01:29] <xreal> ok
[01:35] <Darby_Crash> i've restarted
[01:35] <Darby_Crash> sudo apt-get install libxext-dev
[01:35] <Darby_Crash> :))
[01:39] <xreal> didn't need that
[01:48] <xreal> My cores are used by 20-30 % only, why?
[01:52] <Darby_Crash> mmmm
[01:53] <Darby_Crash> don't compile sdl
[01:53] <xreal> give us your log file please
[02:05] <Darby_Crash> http://pastebin.com/qZAv0n4i
[02:05] <Darby_Crash> xreal
[02:06] <Darby_Crash> this is ubuntu vm 14.04
[02:06] <Darby_Crash> i can't compile sdl
[02:48] <xreal> re
[02:48] <xreal> Darby_Crash: still there?
[02:49] <xreal> Darby_Crash: what error are your getting? please post a buildl og
[02:49] <xreal> log*
[02:49] <xreal> conftest.c:116:36: fatal error: dev/usb/usb.h: No such file or directory
[02:50] <xreal> Darby_Crash: sudo apt-get install libusb-dev
[04:01] <xreal> msg NickServ identify f342egrfdg
[04:31] <grepper>   /msg nickserv setpass
[10:57] <ruby_on_tails> is there any channel to discuss audio related stuff?
[10:57] <ruby_on_tails> i am trying to record the audio being played back in the browser but it has too much noise, how can i fix it?
[11:34] <pentanol> I can't see added zeroed space in win_expand.img image when I boot from livecd for image expand in partition-magick
[11:34] <pentanol> sorry
[15:49] <Lexx_> I encode videos with ffmpeg, but the duration of the newly converted files is not shown in Windows file manager, I am on Win7 64bit. I use CLI, -i <file> -c:v libx264 -c:a libmp3lame <outputfilename>. Can I get ffmpeg to fill metadata (if that is what's missing) based on the actual files contents? I pretty much just need the duration.
[15:51] <c_14> Can you pastebin an ffprobe of a file that shows duration and one that doesn't?
[15:56] <Lexx_> Will do
[15:59] <nguydavi> Hi, I am working with smooth streaming MP4 and was trying to add SRT subtitle but I found out that smooth streaming does not support SRT but it supports TTML (http://www.w3.org/TR/ttaf1-dfxp/), I couldn't find a way to encode TTML or convert SRT to TTML with ffmpeg. Also if an encoder exists, can anybody give me its AV_CODEC_ID ? I'm open to alternative if there are any to encode subtitle into MP4 smooth streaming
[16:05] <Lexx_> here we go, the .mkv file is the converted one: http://pastebin.com/9nfK7iaJ
[16:05] <c_14> nguydavi: I think the muxer is the mov_text muxer
[16:05] <c_14> Not sure about the AV_CODEC_ID
[16:08] <nguydavi> c_14: mov_text works for normal mp4 but doesn't work for me with smooth streaming mp4
[16:08] <c_14> Lexx_: Windows doesn't have matroska support, if you want explorer to show you the length attribute of matroska files you'll have to install something like K-Lite codec pack
[16:09] <nguydavi> c_14: when I add "-movflags frag_keyframe+empty_moov" when encoding SRT into mp4 and then try to extract subtitle from that mp4, it doesn't work
[16:15] <Lexx_> c_14: Thanks, that fixed it.
[16:18] <c_14> nguydavi: try using webvtt maybe? Not sure if the muxer supports it. Other than that, I don't think ffmpeg has a ttml encoder yet. Might want to open an issue.
[16:29] <nguydavi> c_14: nice i just tried webvtt, it seems to work ! :) Thanks I'll dig into that!
[17:25] <TiberiusReilly> I have libvorbis install (mac x64), and I'm trying to compile ffmpeg with libvorbis
[17:25] <gchristensen> Hi, what is the timeline on 1.x.x no longer being supported? I'm using it in a project and am wanting to get ahead of the curve on it.
[17:25] <TiberiusReilly> but I keep getting "libvorbis not found"
[17:31] <gchristensen> also, is there a way to verify the static builds here: http://johnvansickle.com/ffmpeg/
[17:37] <c_14> gchristensen: define verify, also we prefer you not use 1.x.x, it's not in development though security fixes should get backported if you poke the right people (not sure about an explicit eol though)
[17:37] <c_14> TiberiusReilly: pastebin your config.log
[17:40] <TiberiusReilly> http://hastebin.com/juyixoweja.coffee
[17:41] <c_14> I'm getting an Application Error
[17:43] <gchristensen> c_14: shasum or md5sums or pgp signatures etc.
[17:48] <c_14> gchristensen: AFAIK, currently no. You'd have to ask relaxed if he would be willing to add those.
[17:49] <gchristensen> OK, thank you c_14
[17:50] <TiberiusReilly> c_14 do I have to put the ogg library in a certain place?
[17:52] <c_14> TiberiusReilly: you need CFLAGS and LDFLAGS pointing to the include dir and lib dir respectively
[17:56] <whoever> hi all
[17:57] <whoever> I am tring to dmux a vob,and i keep getting unuabale video with -c:v . The video i get is a bunch of flickering squars
[17:57] <whoever> can someone assist
[18:02] <whoever> fflogger: that may take a while, i am running ffmeg i vob -c:v mpeg, the file is 5Gb
[18:03] <whoever> https://bpaste.net/show/ba66eff45b33
[18:04] <whoever> ignore comment in paste
[18:05] <whoever> fflogger: the command finished and the video is pixelated, but the original vob is fine
[18:05] <TiberiusReilly> fflogger is a robot
[18:05] <whoever> TiberiusReilly: thx
[18:05] <TiberiusReilly> you shouldn't talk to robots
[18:05] <whoever> !ff
[18:05] <whoever> !video
[18:06] <whoever> TiberiusReilly: ya they are bad for your health :-)
[18:06] <whoever> so anyway
[18:07] <whoever> I am tring to dmux the video and eventualy the audio from a vob so that i can requantize the video and the video that i get is crap
[18:07] <whoever> is there a better set of switches to use
[18:08] <c_14> whoever: what version are you running?
[18:08] <c_14> What player are you using to test?
[18:10] <whoever> c_14: 2.6.2
[18:10] <whoever> *2.5.2
[18:13] <c_14> can you pastebin the output of `ffmpeg -t 60 -i mm.vob -c:v copy out.mkv' ?
[18:13] <c_14> shouldn't take as long
[18:16] <whoever> https://bpaste.net/show/96a1f8e75a38
[18:18] <c_14> try adding -fflags +genpts
[18:21] <whoever> c_14: do you want all out put or the last few lines
[18:22] <c_14> everything would be best
[18:27] <whoever> c_14: https://bpaste.net/show/ba97869141c0
[18:28] <c_14> Does the video play?
[18:34] <whoever> c_14: the video is a buch of little squars that flicker, and the audio pops
[18:34] <whoever> so i would say no
[18:34] <whoever> i took a sceen shot if you wanna see it
[18:35] <c_14> What player are you using to test?
[18:36] <whoever> c_14: vlc, also xine
[18:36] <c_14> Can you try playing the source with ffplay ?
[18:37] <whoever> still the same result
[18:38] <c_14> The source looks fine with ffplay?
[18:39] <whoever> c_14: crap .. no
[18:39] <whoever> but did look fine in vlc
[18:40] <whoever> can i clean it up then with ffmpeg
[18:40] <c_14> Might be a bug in the demuxer/decoder, can you try with a git build?
[18:41] <whoever> which version
[18:41] <whoever> or git do you want me to git
[18:41] <c_14> git master head
[18:41] <whoever> do you got links to same me some time
[18:42] <c_14> http://git.videolan.org/git/ffmpeg.git
[18:48] <whoever> is this a huge banch ? it is still cloning
[18:50] <c_14> It's pretty big, ye.
[18:50] <c_14> You might want to add --depth=1
[18:52] <whoever> c_14: so still git clone http://git.vid....
[18:53] <whoever> about how long should the clone take ? more than 10 min?
[18:54] <whoever> fyi I have about a 30mbps pipe
[18:58] <c_14> It's ~221MiB
[18:59] <whoever> then it should had been done by now , still cloning
[18:59] <whoever> git seems to be realy quit, fyi the url you posted says forbiden in broweser, but git doesn't complain
[19:00] <whoever> is it throttled ?
[19:01] <whoever> finaly finished clone
[19:03] <whoever> i get yasm/nasm not found or too old. Use --disable-yasm for a crippled build. when i ./configure, DO I need to worry about it, or ignore that and just install
[19:05] <tchevass> Hey guys, I have some question about the installation of ffmpeg
[19:09] <whoever> tchevass: what are they, I have some too
[19:09] <c_14> whoever: you should probably install yasm/nasm /get a newer version
[19:10] <tchevass> is this normal ? http://pastebin.com/HatBZr33
[19:10] <c_14> tchevass: sure, why not?
[19:10] <c_14> assuming /usr/local/stow/ffmpeg-1.1.4/ is your prefix
[19:11] <whoever> c_14: so does it matter which one i get
[19:11] <tchevass> well that was on my vm I just wanted to do some documentation so the installation would be easier, ill try to install it on my server now
[19:12] <JEEB> whoever, yasm is generally recommended because it's supported in various OSS multimedia projects
[19:12] <tchevass> c_14: its my first time compiling something thats why..
[19:12] <whoever> JEEB: thx
[19:16] <whoever> tchevass: all i see , in that post is a tree, i don't really see what the question was
[19:16] <whoever> c_14: making < fyi
[19:20] <tchevass> whoever: i know, is there a easy way to test my installation ?
[19:22] <c_14> tchevass: ffmpeg -version
[19:23] <xreal> c_14: I've developed some patches to make latest libpng (and others) work with ffmpeg. Where's the right place to share them? trac?
[19:23] <c_14> xreal: patches to ffmpeg or to the other libraries?
[19:23] <xreal> c_14: actually to the other libraries :)
[19:24] <tchevass> c_14: it doesnt work..
[19:24] <c_14> Probably on the mailing lists for those other libraries then.
[19:24] <c_14> tchevass: is the path to the binary in your PATH?
[19:24] <whoever> tchevass: what commands did you run
[19:24] <whoever> to install it
[19:25] <tchevass> whoever: --prefix=/usr/local/stow/ffmpeg-1.1.4 --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libdc1394 --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-
[19:25] <tchevass> libvpx --enable-libx264 --enable-libxvid
[19:25] <whoever> is that it
[19:25] <tchevass> no
[19:25] <tchevass> then make, make install
[19:25] <c_14> tchevass: export PATH=/usr/local/stow/ffmpeg-1.1.4/bin:$PATH; ffmpeg -version
[19:26] <whoever> where there any errors along the way
[19:26] <tchevass> i dont remember, i dont think so
[19:26] <tchevass> c_14: doesnt work
[19:26] <c_14> If there were errors, make install would have complained
[19:27] <c_14> tchevass: /usr/local/stow/ffmpeg-1.1.4/bin/ffmpeg -version
[19:27] <whoever> tchevass: then either it didn't make, or you enterd the command wrong
[19:27] <c_14> Also, why are you instaling ffmpeg-1.1.4 ? or is that just some random string
[19:27] <tchevass> I need version 1.1.4 so i can use it in a drupal module
[19:27] <xreal> I've dropped all the useless libraries from my ffmpeg. I don't know, why to integrate Frei0r and others.
[19:28] Action: whoever forgot how long from source took 
[19:28] <whoever> xreal: conversions
[19:28] <tchevass> c_14: I got my command here https://github.com/islandora/islandora_solution_pack_video#requirements
[19:28] <xreal> Anyone ever tried Dirac video codec? Is it useful at all?
[19:29] <whoever> tchevass: thats not verbatum , that is an example
[19:30] <whoever> ok, it should be an example , and you should install 2.5 >
[19:31] <tchevass> will it work fine ?
[19:31] <c_14> If it uses the binary, it should work just fine.
[19:32] <c_14> Probably anyway.
[19:33] <whoever> c_14: ok installed
[19:33] <whoever> and when i check version it is 2.5.2
[19:34] <c_14> Where did you install it?
[19:34] <c_14> You might need to update your PATH so that the new binary is in front of the old one.
[19:34] <c_14> Or just call the binary with the absolute path.
[19:34] <whoever> i didn't prefix, so i assume it installed to the dir the source is in
[19:35] <c_14> Did you make install? or just make ?
[19:35] <c_14> If you used make install it's in /usr/local/bin/ffmpeg if you used make it's in ./ffmpeg
[19:36] <tchevass> is the ffmpeg package complete ? or compiling from source is better ?
[19:36] <whoever> now my blind ass sees pre release
[19:37] <c_14> tchevass: depends on the distro, though compiling from git source is preferred
[19:37] <whoever> is that the what you expect that I should see
[19:38] <c_14> whoever: the version string should be similar to this: ffmpeg version N-68976-gd1c6b7b Copyright (c) 2000-2015 the FFmpeg developers
[19:38] <whoever> when i run ./ffmplay /path/to/vob  the result is just a crappy as before
[19:39] <whoever> c_14: ok so i am using to corrct install thenw
[19:39] <whoever> *then
[19:39] <c_14> whoever: then it's probably a bug, https://ffmpeg.org/bugreports.html
[19:42] <whoever> c_14: do i just say the video was a buch of little sqares, i don't see where to upload a screen shot
[19:43] <c_14> Can you submit part of the video file?
[19:43] <c_14> Look down near Submitting Sample Media
[19:45] <c_14> Except for step 4, just state that you uploaded filename to the ftp in your bugreport
[19:45] <c_14> You can also attach files directly to the bugreport if they're small enough
[19:49] <whoever> c_14: is the bug in ffmpeg or ffplay or both, the original vob only seem to work fine in vlc
[19:50] <c_14> whoever: probably both
[19:55] <whoever> c_14: would there be a reason that i need to include a sample of the original vob that works,  or just include a sample that shows that it doesn't work
[19:55] <whoever> also, wonder why this hasn't been caught 'till now
[19:56] <whoever> when there are posts all over "convert vob", "extract vob" an there whern't any domplaints
[19:57] <c_14> Preferably the sample that works in vlc but doesn't in ffplay
[20:12] <whoever> c_14: i don't see an attach on the report
[20:13] <whoever> also should i post both versions used , pre released, and 2.5
[20:14] <c_14> The git one should be fine.
[20:14] <c_14> I think the attach only shows up once you've submitted the ticket.
[20:17] <whoever> c_14: ok
[20:28] <whoever> c_14: tracker will not let me upload, my sample was to big(followed the dd command on the bug report url ) it tracker says 4252 was created
[20:28] <whoever> if you can would you check to see that it actualy mace it there
[20:29] <whoever> now other then ffmeg, is there another tool that I can use to dmux or is ffmpex it
[20:29] <whoever> tcextract, just errors
[20:29] <whoever> before it does anything
[20:31] <c_14> whoever: if you can't upload the file to trac, upload it to the ftp and mention that you uploaded [filename] to the ftp
[20:32] <whoever> whats the ftp url
[20:33] <c_14> upload.ffmpeg.org
[20:34] <c_14> anonymous login
[20:41] <whoever> c_14: i get cannot resolve hostname from scp
[20:42] <whoever> scp small-sample.mpeg ftp://upload.ffmpeg.org/ffmpeg/#4252.mpg
[20:45] <c_14> I don't think scp supports ftp
[20:50] <whoever> c_14: ok, ticked made , i found the gui uploader on the site
[21:02] <whoever> and now it probably won't be fixed and released for about 8 months :-)
[21:03] <c_14> Depends on if somebody is interested. Did you mention that you uploaded the file to ftp in the ticket?
[21:05] <whoever> yes i did
[21:05] <c_14> ticket 4252?
[21:05] <whoever> now will i ever know if it was fixed otherq then trying perodicly
[21:05] <whoever> and yes also 4253
[21:06] <c_14> You can add yourself to the cc
[21:06] <whoever> so i think i made two tickets
[21:06] <whoever> ar
[21:06] <whoever> ah
[21:07] <c_14> Is there a difference in them other than that one states that you uploaded the file to ftp?
[21:08] <whoever> no
[21:10] <c_14> I'm going to close 4253 as duplicate and say in 4252 that you uploaded 4252.mpg to the ftp
[21:10] <llogan> i believe ticket creators are automatically CCd
[21:15] <whoever> c_14: you beat me to it ,
[21:15] <whoever> llogan: and why do you say that
[21:24] Action: whoever thinks llogan is a bot he hasn't responded 
[21:47] <llogan> whoever: in response to "<c_14> You can add yourself to the cc"
[21:47] <llogan> not that it really matters
[22:17] <bofh> Hello! http://pastie.org/pastes/9828274/text?key=ocs3ep4gh749oywjmha - there's the strange problem with number of channels for amerge
[22:17] <bofh> can somebody pls take a look?
[22:22] <llogan> that's quite the filtergraph
[22:24] <bofh> yeah
[22:24] <bofh> it's actually generated
[22:24] <llogan> Too many channels (max 32)
[22:24] <bofh> I wonder why
[22:24] <llogan> that's from amerge
[22:24] <bofh> I split all 20+ tracks in chunks by 5 and then try to merge them
[22:24] <klaxa> why is that btw? i ran into that with amix too, in the end i resorted to using sox for mixing
[22:25] <bofh> sox is cool, but it can't do audio effects like increase/decrease volume etc
[22:26] <bofh> I think my problem is that amerge actually creates a stream of N channels
[22:26] <llogan> bofh: but each of your outputs from your amerges results in 8-10 channels, then you try to amerge all of those resulting in 48? channel input for amerge
[22:26] <bofh> yeah
[22:27] <bofh> how can I tell amerge to reduce number of output channels to 2?
[22:27] <llogan> you can add the pan filter or similar to "squash" each amerge set
[22:27] <llogan> maybe. this gets confusing
[22:28] <llogan> what is this from anyway?
[22:31] <bofh> yeah
[22:31] <bofh> adding pan worked
[22:32] <llogan> did you use < or =?
[22:33] <bofh> <
[22:33] <llogan> i wonder why 32 is amerge max
[22:36] <llogan> with so many channels can you even hear much due to the gain renormalization?
[22:37] <llogan> in terms of each contribution from the individual channels, not the overall sum
[22:38] <kobe> Is ffmpeg-mt still much faster than ffmpeg at h264 decoding or have most changes from ffmpeg-mt been merged to ffmpeg already?
[22:38] <bofh> well, it works well
[22:40] <ubitux> kobe: ffmpeg-mt was merged 3 years ago or so
[22:42] <kobe> @ubitux: Thanks ! Are the ffmpeg-mt optimizations active automatically when building ffmpeg with option --enable-threads or do I have to choose the thread count somewhere (I'm using libffmpeg 2.4.1)?
[22:42] <ubitux> you don't need to specify any option
[22:42] <ubitux> threading is enabled by default at compilation and runtime
[22:43] <ubitux> ffmpeg 2.4.x is outdated btw
[22:43] <ubitux> you should use git/master or latest stable
[22:43] <bofh> 2.5.3
[22:44] <kobe> will 2.5.3 make a big difference in performance?
[22:44] <ubitux> "libffmpeg" is not part of the FFmpeg project btw
[22:44] <ubitux> for h264 i don't think it will make any difference
[22:44] <kobe> ok, thanks
[22:45] <bofh> in order to copy audio from input to output with no changes - should I use "anull" filter?
[22:46] <ubitux> why use a filter in the first place?
[22:47] <bofh> just to keep the code simple - if there's the last chunk supposed to be merged, and this chunk contains only one input - then copy it to the output
[22:47] <bofh> seems anull is what I was looking for
[22:51] <xreal> Prince isn't the son of Martin Luther King.
[23:28] <xreal> Is there a subtitle format, which can store fonts as bitmaps?
[23:31] <c_14> Any bitmap subtitle format...
[23:33] <xreal> oh :D
[23:33] <xreal> I never tried it :)
[23:33] <xreal> c_14: let me read more about it
[23:34] <c_14> They don't store fonts as bitmaps per se, they just store the rendered text as bitmaps, but that's nitpicking.
[23:38] <xreal> c_14: can you tell me one format for testing?
[23:38] <xreal> c_14: on google, most of the people try to convert bitmap subtitles to text :)
[23:40] <c_14> dvd_subtitle pgs
[23:40] <c_14> Both those.
[23:40] <c_14> Though ffmpeg does not (yet) have a pgs encoder/muxer
[23:40] <JEEB> there's a thing that converts ASS to PGS IIRC
[23:40] <JEEB> no idea how good it is, though
[23:41] <JEEB> or how correct
[23:41] <JEEB> I just remember seeing the thread on doom9
[23:44] <xreal> So DVD always has bitmap subtitles?
[00:00] --- Tue Jan 13 2015