Adding a lossless mode to MPC SV8

Hi,

as announced before, i would like to start a discussion here about the=20
above written subject.

The reason i'm asking is, if we make the jump from SV7 to SV8, we should

- guarantee backwards compatibiliy, means that old SV7 files should be=20
convertable to SV8 ( with special tools ) in a lossless process, but=20
still be fully spec compatible SV8 files

- make sure the SV8 specs offer a lot more functionailities than SV7, so=20
that MPC SV8 can be used for hi-quality movie encodings as well as for=20
DVDs, where space is maybe not a big issue anymore

- consider to check if its possible to allow peeling for MPC SV8, so=20
that users can store their MPC files with rather high bitrates on DVD or=20
CD media, but can peel the files down in bitrate so they could be=20
transferred onto portable players ( of course, this is NOT a lossless=20
process anymore )

- add a loss less mode to SV8, and the speciality here is that mixing=20
lossy and lossless modes in one and the same file should be possible,=20
just like in the upcoming Wavpack4 from David Bryant ( who i am copying=20
on this email, i dont wnat to 'steal' his idea without at least telling=20
him :-)  )


To make one thing clear out front, i dont know if Frank has thought=20
about all these things in his current specs, because i am sorry i am not=20
capable reading technical specs at all, but from a user perspective i am=20
convinced these features could lift MPC on a new level, and make a big=20
differentation from other formats.

What you think ?

Christian
MPC and matroska project admin


http://mpc.corecodec.org