lossless for High Res ?

[Bourla]

I am looking for a lossless codec for high resolution (like 1600x1200 and more) animations (in RGB or RGBA format).
The decompression speed is the most important.
I would also like the source code to be available.

Any Idea ?


I have seen several lossless codecs referenced on this forum (CorePNG, ffv1, ...) but I have no idea (yet) of how they perform in term of decompression time ...

[Tommy Carrot]

I think huffyuv has the lowest cpu requirement for playback. If it's not fast enough, nothing else will be.

BTW, these lossless High Definition contents are eating up unbelievable data-rates, i don't think that the transfer speed of the hard-disk will be sufficient for the playback.

[Sirber]

I heard about a MPEG2 with iframes only for AVI. It might be the fastes lossless codec (for decoding). I can't find the URL :(

[stephanV]

i dont think MPEG2 I-frame only is lossless...

[PowerMacG4]

Originally posted by stephanV
i dont think MPEG2 I-frame only is lossless...

You are correct.

[Sirber]

Maybe that's why I can't find infos about it :D

[superdump]

If you look toward the end of this thread (http://forum.doom9.org/showthread.php?s=&threadid=74669) it seems the Alparysoft encoder if very fast and may suit your needs in terms of encoding (it's lossless and it's apparently very fast with very good compression) so maybe it'll be good for decompression too.

[Bourla]

Do you know anything comparing Alparysoft codec compared to FFv1 and to Huffyuv in term of decoding speed ? any benchmarch ?

By the way, Alparysoft is freeware and only available for Windows...

[Tommy Carrot]

This thread made me a bit curious about this subject, and i did a few tests. I've got a bad news: a lossless high definition video can easily require 100 MB/sec, i don't think that outside the professional video-editing workstations there is any system which is sufficient for this. So the real problem is not the CPU, but the storage and bandwidth requirement.