[Ffmpeg-devel-irc] ffmpeg.log.20141011

burek burek021 at gmail.com
Sun Oct 12 02:05:01 CEST 2014


[04:48] <Zeranoe> Any idea why -q:v 5 yeilds a smaller file size than -q:v 10 with mpeg4?
[04:57] <fmpegN00B> Invalid data found when processing input - HELP
[04:58] <fmpegN00B> ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
[04:58] <fmpegN00B> ffmpeg -i myvideo.mov -r 30 -vcodec libx264 -acodec aac -strict experimental -ar 44100 -b:a 192k -vf scale=1920:1080 -aspect 16:9 output.mov
[05:32] <Schnabeltierchen> if an video file has subtitles is ffmpeg able to recode them as well?
[08:12] <benschwarz> hey folks, wondering if anyone knows how I can take a screenshot every xx milliseconds from a video?
[10:33] <Baked_Cake> quick question sir or madam
[10:34] <Baked_Cake> when i do FOR /r %%i in (*.mp3) is there a way to specify multiple extensions is the (*.mp3)
[10:34] <Baked_Cake> in*
[12:22] <kaotiko> hi
[14:22] <Bwithmore15> hello what video format can i use to make  videos compatible on dvd player ?
[14:29] <c_14> mpeg1 or mpeg2
[14:29] <c_14> Maybe xvid depending on the dvd player.
[14:31] <c_14> If you want to convert a video to make it work with a dvd player, the easiest thing to do is use the dvd targets.
[19:31] <albator> hello
[19:34] <albator> trying to compile ffmpeg, and i get this error
[19:34] <albator> http://pastebin.com/6jQ47c6G
[19:35] <albator> using this configure line --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libfdk_aac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-libx264 --enable-libvpx --enable-librtmp --enable-libass --enable-libfreetype --extra-libs=-ldl --enable-openssl
[19:35] <albator> i m on ubuntu 12.04
[19:35] <albator> maybe i don't need  --extra-libs=-ldl  ?
[19:36] <c_14> Is this from git or a release?
[19:36] <albator> i tried updating with old style "git pull" on the file directory
[19:36] <albator> but it doesn't work anymore
[19:36] <c_14> hmm?
[19:36] <albator> usually i d follow the updating guide
[19:37] <albator> remove, distclean, and git pull
[19:37] <albator> so i simply removed ffmpeg libx264 , the directories, and downloaded the one present in the most recent tutorial on the ffmpeg's page
[19:38] <c_14> You followed this? https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
[19:39] <albator> yes, part of it
[19:39] <c_14> Oh, hmm. when did the guide switch from git to snapshots...
[19:39] <albator> removed my 1.2 yasm, updated to last version
[19:40] <albator> i just don't know where that error come from..
[19:41] <albator> the only thing I added on the config line is the --enable-openssl
[19:41] <c_14> Does a plain `./configure && make' work?
[19:41] <albator> coz currently my ffmpeg couldn't open https streams
[19:41] <albator> didn't try
[19:42] <c_14> Could you? Just to try and remove a couple of variables.
[19:45] <albator> compiling..
[19:45] <c_14> Isn't compiling things so much fun?
[19:46] <albator> when it works ofc
[19:46] <albator> :)
[19:46] <albator> it s a prod site .. .so basically everything is down till it works :)
[19:46] <c_14> And of course you deleted the old binaries?
[19:46] <c_14> Wouldn't be fun otherwise.
[19:47] <albator> :)
[19:57] <albator> same error while encoding without options
[19:58] <albator> :/
[19:58] <c_14> You mean while building?
[19:58] <albator> compiling rather
[19:58] <albator> yea
[19:58] <c_14> Right, can you try grabbing the latest release snapshot or cloning the git tree?
[19:59] <c_14> https://ffmpeg.org/releases/ffmpeg-2.4.tar.gz
[19:59] <c_14> https://ffmpeg.org/releases/ffmpeg-2.4.2.tar.gz rather
[19:59] <albator> http://i.gyazo.com/77badc1522dd1459bc3198c002d1cef2.png
[19:59] <albator> ok
[20:02] <JEEB> have you distclean'd when updating :P
[20:02] <JEEB> the sources that is
[20:02] <Distraught> hello can someone give me a hand?
[20:03] <Distraught> I installed ffmpeg but it seems that clip bucket which needs it can not find it. I typed find ffmpeg and i get /usr/bin/ffmpeg
[20:03] <Distraught> Still can not find it
[20:03] <albator> i think so JEEB
[20:04] <c_14> Distraught: does it need the binary or the library? also maybe it hardcodes the path somewhere? What does ffmpeg -version print ?
[20:05] <Distraught> c_14 FFmpeg version 0.6.5, and lots of other stuff
[20:06] <Distraught> this is what is should be?
[20:06] <c_14> Depends, if you're a time traveler from the past, yes.
[20:06] <c_14> How did you install ffmpeg?
[20:07] <albator> lol
[20:07] <Distraught> yum install ffmpeg :S
[20:07] <Fjorgynn> apt-get install fmmpeg
[20:07] <Distraught> i have centos
[20:07] <Fjorgynn> good for you
[20:08] <Distraught> -bash: apt-get: command not found
[20:08] <Fjorgynn> maybe compile it?
[20:08] <c_14> Distraught: you might need to grab ffmpeg from rpm fusion, or compile from source, or grab a static build
[20:09] <Distraught> hm yeap... not too expirienced in linux . Guide or something so i dont ask you a lot? :D
[20:10] <c_14> https://trac.ffmpeg.org/wiki/CompilationGuide/Centos
[20:10] <c_14> If you feel like compiling.
[20:10] <c_14> The static builds are over here: http://johnvansickle.com/ffmpeg/
[20:10] <c_14> and I have no idea about rpm fusion
[20:11] <albator> the compilation worked with that version c_14,
[20:11] <albator> with options
[20:11] <albator> maybe the last snapshot has a problem?
[20:11] <c_14> Inconsistent state somewhere maybe.
[20:12] <albator> your link is pretty recent right?
[20:12] <c_14> 2.4.2 is the latest release
[20:13] <c_14> Split from master in july/august iirc
[20:13] <albator> hm ok
[20:13] <albator> thank you for the support
[20:13] <c_14> >cut from master on 2014-09-14.
[20:14] <albator> ok, i guess I went on the 1% of broken snapshot lol
[20:16] <Distraught> well i downloaded it to /usr/local/src/ unziped it to /usr/local/src/ffmpeg-2.4.2-32bit-static
[20:16] <Distraught> and ./install ?
[20:16] <Distraught> am i supposed to do something now?
[20:16] <c_14> The static build should just be a couple of binaries. Just put them wherever you want and make sure that clip bucket can find it.
[20:17] <c_14> ie by placing it in $PATH somewhere in front of /usr/bin
[20:17] <c_14> /usr/local/bin is an oft-chosen location
[20:34] <Distraught> well i didnt make it with static solution. I removed the old version and tried again the yum method
[20:34] <Distraught> It installs the same version. As i can understand i need to put the repository of the new version in my sources or something and download it from there right?
[20:35] <c_14> Something along those lines, last time I used yum was ages ago though.
[21:13] <ChocolateArmpits> uhhh are there any documentaries about video encoding
[21:13] <c_14> There are a few guides on trac.
[21:13] <c_14> What exactly are you looking for/trying to do?
[21:14] <ChocolateArmpits> No, I mean like a documentary film on video encoding or something
[21:14] <c_14> Oh, eh
[21:14] <c_14> I don't know.
[21:15] <ChocolateArmpits> I googled nothing came up, just thought it might be cool
[23:03] <timezone> hey, i'm rendering some bitmap data into a video on windows, not sure the best way to avoid writing all the data to seperate image files, since that seems like a waste of time, can i just write the rasters to ffmpeg using a pipe or something (this is windows though)
[23:04] <timezone> also the format i'm getting is just a stream of ARGB
[00:00] --- Sun Oct 12 2014


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