Last edited by sumero; October 14th, 2009 at 07:16 AM.
Everytime i add -async 44100..
i get this "TICK TACK TICK TICK TICK TACK"
noise for the first 3-5 seconds of the video...
and then it goes normal.
something is sooo wrong with -async.
there has to be something other than this..
it appears no command is a wild card for all videos.
FFmpeg doesn't support wildcards for batch conversion but you can use the find command in addition of FFmpeg to perform a batch conversion. Refer to the excellent find tutorial written by andrew.46:
Linux Basics: A gentle introduction to 'find'
ffmpeg-user mailing list.
by the way here's a question, does it matter what kinda server
you run ffmpeg on? for example if it has only 256 mb memory?
i mean is it possible i experience problems due to lack of memory
perhaps i should install ffmpeg on my imac as well and run
is it possible? i guess i'll google it.
sorry, i meant to post a reply and it deleted my entire post
appears i clicked on "edit".. instead of reply.
Last edited by sumero; October 14th, 2009 at 08:38 PM.
Congrats on this amazing guide reaching 198,469 views, I hope a small celebration is in order when the magic 200,000 mark is reached . I predict when the dust has settled from the Karmic release this guide will have some even more frenetic action when everybody realises that aac encoding is no longer possible with any permutation of the repository FFmpeg. Interesting times ahead...
Again: congratulations on this amazing guide!!
You think that's air you're breathing now?
after a week of going round in circles, Im hoping you can point me in the right direction.
I upgraded to Karmic, and cannot convert avi files to mp4 using the following command:
/bin/ffmpeg -threads 2 -i "file.avi" -vcodec libx264 -r 15 -b 192 -s 320x240 -acodec libmp3lame -ac 2 -ab 64 -ar 32000 "outputfile.avi"
This is via WinFF. I get part encoding up to a point - but then it says 'Audio encoding failed'
I have tried to use the package version of ffmpeg - and I have tried to compile a version of my own, but thats a whole other set of problems fitting FakeOutdoorsMan's excellent intructions for Intrepid and Jaunty to my Karmic upgrade.
I am a novice. Heres my output:
I read that the AAC library has been dropped. Is this why I cannot encode to mp4 from avi?Code:FFmpeg version SVN-r19352-4:0.5+svn20090706-2ubuntu2, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5+svn20090706-2ubuntu2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --extra-cflags=-I/build/buildd/ffmpeg-0.5+svn20090706/debian/include --enable-shared --disable-static libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 0 / 52.20. 0 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libavfilter 0. 4. 0 / 0. 4. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Oct 13 2009 22:15:16, gcc: 4.4.1
I finally got a working version of Audacity 1.3.9 and libavcodec by asking for help at the audacity forums. Pointed me to this ppa, this is repo line I added in Synaptic
And I added the authentication key in a terminal withCode:http://ppa.launchpad.net/philip5/extra/ubuntu jaunty main
Code:sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0x500e60ce43c56f3f
This is the thread - http://forum.audacityteam.org/viewto...p=54091#p54091
I will reprint the post I just made there in thanks.
PerPer, thanks, this is the repo I've been looking for. Installed both ffmpeg and associated along with audacity from this ppa, and Audacity auto located the ffmpeg libs when I opened Preferences | Libraries | Locate. Awesome. The ppa does not seem to say if it has 32 bit only or 64 bit packages, I'm on 64 bit and it works fine so perhaps it is indeed both. Also has a lot of other good and up to date multimedia and driver packages. Very nice.
You could try the repository from where I got a now working Audacity + ffmpeg. The location is found at https://launchpad.net/~philip5 There you will find the address to Philip's repo as well as the security key. And despite that Philip is a swede, the pages are in English. Audacity and Ffmpeg are found under "extra". This is the same repository as which I mentioned in a previous post above.
As far as lack of aac encoding goes, have no idea why this would be dropped, it's pretty important. In Kdenlive I was trying to encode video to mp4 container with h264 and aac and it seems to always crash on render. So instead I rendered to .mov in the DNxHD (super high quality) codec, then used HandBrake to make my final mp4 files. I think I read that Handbrake has its own ffmpeg libs. Works well for now, though if they ever update their ffmpeg I guess that would stop working for aac as well.
My HandBrake version says 0.9.3-1.
One thing puzzling in HandBrake is that bitrate in aac seems limited to 160k for some reason, and I can't get resize video option to work either (I have to render to the exact final size I want in kdenlive.) The Windows version of HandBrake has neither of these limitations.
It may be important, but respecting software licenses are more important. Including FAAC support violates the GPL and LGPL by virtue of the fact that FAAC contains code from the MPEG reference encoder. That fact wasn't always known, but I'm sure the decision to remove it happened very very shortly after it was found out.Originally Posted by ArtInvent
Straight from the horse's mouth (Audiocoding's website):
"FAAC is based on the original ISO MPEG reference code. The changes to this code are licensed under the LGPL license. The original license is not compatible with the LGPL, please be aware of this when using FAAC. The original license text can be found in the README file included in the download package."
It certainly doesn't stop you from grabbing/compiling an independent build of FAAC or using, say, Nero's AAC encoder (which handily beats FAAC in quality anyway; and yes, it does have a Linux version), and then simply muxing the video and audio together after-the-fact.