Best AVI/mpeg compression software?

I' looking for something that can compress my avi's and mpegs down
to about 1 meg per minute, or at least something a little more reasonable
than ~350 megs for a 27 minute file.

Quality loss is not really an issue. I have an full 25 episode of Hand Maid may that is only 50 megs, but I cannot find the compressor that did it.

Almost any lossless codec can do that. The question is whether you'll find the output acceptable.

Go read doom9.org a bit.

*lossy

it's gone

Use the DivX5 or XVID codec, use Virtualdub to process AVIs. Resize the AVIs to 320x240 or even 240x180 (that way you still keep enough detail in the frames to read subtitles, etc, but don't force the compressor to encode huge swathes of pixels, causing the frame to break down into horrible macroblocks). For better quality, use two-pass variable bit-rate encoding. The audio is also a consideration here. You can reduce the audio down in Virtualdub simultaneously with the video recompression. Change it to mono and drop the sample rate to 22050, then use whatever codec takes your fancy to recode the audio using just a quarter or less of the bitrate of the full-quality audio (eg. you could get away with 128kbps MP3 audio, but after halving the sample rate and changing to mono, you can use 32kbps or less).

I'd recommend AAC+ for low bitrates. MP3 just doesn't perform well at 64kbit or lower.

Deinterlacing is also a win for size, depending on codec.

mencode

>>5
"you could get away with 128kbps MP3 audio"

No he couldn't, he's aiming for 1 MB/min, which is 136 kbps. He'll never get DivX or XviD down to that rate even at quant 31. Also, don't use 240x180. If you must, use 256x192, at least that's mod16.

For a bitrate like that, you'd be better off sticking your face in the toilet, but if you do try, pick between H.264 (Ahead's or x264), RV10, and VP7 (good luck getting that), or, if you're really daring, Snow. Use Vorbis 1.1 or Nero's HE-AAC for the audio at like 24-32 kbps. This will leave you about 100 kbps for video. Good luck with that.

I wish there was more information about Snow. Niedermayer isn't very forthcoming about what he's doing with it.

Apparently he's not doing much -- he seems to have abandoned the project, at least for the time being. Other coders are working on optimizations and the transform at the moment, though.

>>9
Is this that new wavelets based one?

Yes.

Ok if 1 MB per minute is impossible how about 1.5

Is there something easier to use than Virtual dub

>how about 1.5

You're still only giving yourself 200 kbps to work with. I wouldn't go below 384. If you must, use 256. That gives you 224 to use for video. For reference, you can figure it out yourself easily by kpbs = [MB/min] * 1024 * 8 / 60.

>Is there something easier to use than Virtual dub

What could be easier? Open video, configure encode, save video...
But Recode is possibly the most noob-friendly encoding software in existence, and that's really what you should probably use (with the H.264 codec). Otherwise, RealAnime is simple as hell too. With x264 and VP7 you have to use vdub. For Snow... just forget about it.

Snow's being discussed on mplayer-dev-eng. It seems to be quite good for how experimental it is, although mencoder -lavcopts vcodec=snow:vqscale=5 compresses far too much (but looks very good compared to the miniscule bitrate). I'm trying out three-pass ABR compared to x264.

Update: Snow doesn't support 2/3pass, so isn't worth comparing yet.

Update: Snow doesn't support 2/3pass, so isn't worth comparing yet.

Most of these tool are for encoding video files for DVD. I just want to make my video files smaller!

What? No, none of them are for encoding to DVD. Most of them are used to encode FROM DVD, but that is "just making them smaller". Trust me, this is the best way to do it.

The files are already compressed using divx. Should I convert them back to PCM before I code them

You're getting stuff confused. DivX is a video codec. PCM is audio (uncompressed at that). But there is no need to convert to anything that is already compressed to a lossless format and then back to a lossy one.

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