Sony YUV codec. Is it lossless or not?

Sebaz wrote on 9/1/2008, 11:51 AM

I'm trying to find the best codec to export from Vegas in 1920x1080i to then import into DVDA 5 and let it convert to AVC at the same size, since Vegas is AVC handicapped. Huffyuv is good, but it seems to render slower than the Sony YUV codec. I'm wondering if the latter is a lossless codec or a barely lossy one. I checked the manual but I couldn't find an answer.

Comments

GlennChan wrote on 9/1/2008, 2:14 PM

It might be lossy (technically speaking) since you get some rounding error going between 8-bit RGB and 8-bit Y'CbCr.

You can test it out by rendering something out and then bringing it back in. The 10-bit version of the SonyYUV codec might minimize that. I haven't tried huffyuv, but it could have the same problem.

The sonyYUV codec also uses 4:2:2 chroma subsampling... but that shouldn't be a big issue in this case because chroma subsampling will get applied when you compress your footage further.