On Nov 12, 2009, at 9:06 AM, Brian Rasmusson wrote:

the h264 sources in libavcodec lists "(C) 2003 Michael Niedermayer", but doesn't say if it's GPL or LGPL.

http://www.videolan.org/developers/x264.html does not list Michael N. as author, but says their code is used by FFmpeg.

This is a bit confusing. Which code is it?

It's clear you assume that source in libavcodes is GPL since the configure script leaves it out when not enabling GPL.

I find that h264 gives by far the best video output when converting to mp4. Are there any alternatives that can be used under LGPL?

Brian, are you sure it gets left out? I think there's two H.264 decoders - ffmpeg's built-in, and x264. x264 is separate project, and definitely is GPL. If you enable GPL, you get that - I believe it replaces the internal version. If you don't, I think you get a more basic LGPL version. We have LGPL settings, and get H.264 (although I feel compelled to go check now).

Bruce Wheaton



Best regards.
Brian
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