10bit bluray encode color alteration

[egrimisu]

Hi guys,
just finished a 10bit encode using the latest x264 found on x264.nl and using the latest ffdshow for decode, i have just noticed that the colors ar a litle bit altered, is this effect given by the decoder or this is how the encoder manifest itself?
Since it was a bluray rip i have tried --pic-struct --colorprim bt709 --transfer bt709 --colormatrix bt709 but the same thing resulted. Am i doing someting wrong or this is how thing shoud look.

encode param:
--no-mbtree --thread-input --level 4.1 --merange 32 --ref 4 --rc-lookahead 150 --deblock -2:-2 --no-dct-decimate --no-fast-pskip --keyint 240 --min-keyint 24 --pic-struct --colorprim bt709 --transfer bt709 --colormatrix bt709

[Nevilne]

Are you resizing the bluray in your script? Some decoders don't respect colorimetry flags and decode <720p sources as rec601.
That aside, the rc-lookahead is pointlessly big, and why you disable mbtree?

[sneaker_ger]

See this and following:
http://forum.doom9.org/showthread.php?p=1517382#post1517382

[egrimisu]

Are you resizing the bluray in your script? Some decoders don't respect colorimetry flags and decode <720p sources as rec601.
That aside, the rc-lookahead is pointlessly big, and why you disable mbtree?

Hi,
well i though rc_lookahead is quite big i'll fix that, i hate mbtree, this because i like to use high bitrates and i don't like when dark areas loose detail because mbtree.

[egrimisu]

See this and following:
http://forum.doom9.org/showthread.php?p=1517382#post1517382

thanks sneaker, things look clear now...

[Mug Funky]

you could use a preset...

the only thing i've ever lost from using mbtree is bitrate.

[Caroliano]

You can use qcomp >= 0.7 to limit mb-tree strength, so to limit the damage (and help) from it. But it also affects the rate control and AQ strength (you may think it as good or bad). I like qcomp=0.75 for low crf encodes.