Uncompressing AVIs in linux
Does anyone know of a program with which I can uncompress an AVI? I downloaded several apps for windoze, but they all give me some errors that dont make sense
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avi as in the video format?
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yeah, the AVI video format
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Could I ask why you want to do it? By uncompress, do you mean to 'convert' it to another format? Most peoples around like to convert .avi's into play-ables DVD's or VCD's. If that's what you want, any modern burner software should do it.
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AVI is a wrapper IIRC. It combines a video, compressed with whatever codec the original author compressed it with, and audio, usually compressed as well. So a program to "uncompress" an AVI would be a mis-termed program. You could have an application that unwrapped the AVI (Audio/Video Interleaved IIRC), found the type of the compression used on the video, and then from there you could begin to transform it. To save that step of unwrapping though, mplayer does a great job of detecting the compression used by just playing it, you don't need to watch it even:
mplayer -vo null -ao null filename.avi And just look at the headers. Cool |
mplayer can decompress i think, using raw dumps ..... or if decompress you mean turn it into a bunch of images use "mplayer -vo help" any of the vo options listed that sound like image formats will turn the movie into a bunch of images in you current directory
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Quote:
Now realproducer supports only uncompressed AVIs. "Uncompressed" as in without any video compression codec such as Xvid or DivX. I have found that the Intel Indeo Codec is also accepted by realproducer. So what I want is a large uncompressed AVI file with both audio and video, something that I can convert to realplayer format. I have tried using mplayer -vo mpegpes But I get only video, without any sound Can anyone help? Thanks |
use mencoder, that's mplayer's encoder
mencoder anime.avi -ovc mpegpes -oac copy -o outputfile |
Thanks. I tried that, but I get an error:
Code:
akudewan@ranjan404:/mnt/c$ mencoder Naruto\ 72.avi -ovc mpegpes -oac copy -o outputfile |
you don't have support for mpegpes
type mencoder -vo help to get a list of what codecs you can encode to |
This is weird... The available outputs does show mpegpes
Code:
Reading config file /home/akudewan/.mplayer/config |
That are MPlayer's output drivers, not MEncoder codecs. I forgot mpegpes is an output driver. To list all available codecs, use
mencoder -ovc help |
Thanks, that was it! I did:
"mencoder anime.avi -ovc raw -oac copy -o anime_uncompressed.avi" But there seems to be a 2 GB limit. And I cant play the output file :( |
Recompile mplayer with --enable-large-files (or something very close to that, check the --help for the exact tag). Be sure you are using a filesystem that doesn't hinder you either.
Cool |
How do you want to convert the movies to realvideo?
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