Open source video codecs for Windows?

[ziptip]

Is there any open source video codec for Windows that I can use in VirtualDub for encoding AVI files?

If there is no open source codec, then which codecs are most recommended these days?

I am also interested in lossless codecs too

[blud7]

Well I mean there's XviD
For lossless there's Lagarith

[jagabo]

Use VirtualDub2 instead. It has several built-in open source codecs: xvid, x264, x265, ffmpeg, Lagarith, etc.

[ConsumerDV]

Use VirtualDub2 instead. It has several built-in open source codecs: xvid, x264, x265, ffmpeg, Lagarith, etc.

Funny how there are rabid opponents of VirtualDub2, while you recommend it Actually, I agree with you. I found that most bugs against VirtualDub2/VirtualDubFilterMod were reported several years ago, and since then it has been considerably improved. I use it as well. I like that I can configure a project (I believe that the standard VD cannot do it), I like multiple output container options besides AVI, I like built-in Cineform codec that works. External Cineform codec would crash every time. I wish it allowed to capture directly into MP4/MKV/M2TS file.

So, I came here to suggest Cineform as one of the open-source codecs, sort of. After GoPro bought Cineform, they open-sourced the codec. VirtualDub2 has a native implementation, for other programs you need a separate codec, and GoPro made every effort to prevent installing just the codec, I had to install some of their editor tools. This is what I don't like. But Cineform as a codec has been one of the preferred ones in professional community for the last fifteen years or so, so I trust it.