On Tue, Mar 4, 2014 at 8:04 PM, Niccolò Belli <[email protected]> wrote: > http://www.linuxsystems.it/2014/03/new-screenshots-comparator-loads-new-x264-x265-vp8-vp9-tests/ > > Congratulations to the x265 team: at low bitrates x265 completely CRUSH x264 > if you use a very high quality source like the Blu-ray of "The Hobbit: An > Unexpected Journey". > Hopefully in the future it will improve at high bitrates too. hi10p is just > too bugged to be useful right now.
Hi Niccolò, I'd like to understand the steps you took to encode 10bit video. I think it should show much better, particularly with the 0.8 tag or later. The two basic preconditions x265 needs is to build with HIGH_BIT_DEPTH enabled and then provide it input pixels that are at least 10bits of resolution and in YUV 4:2:0 or 4:4:4 format (4:4:4 is less well tested, so I suggest 4:2:0 for eval). A 10bit build of x265 will happily encode an 8bit input video, it just shifts up all the pixels by two bits. Not necessarily a good demonstration of 10bit encode, but it is useful for comparison purposes. Similarly, an 8bit build of x265 will happily encode a 10bit video if you ask it to (by downshifting). Not necessarily useful except for comparison. -- Steve Borho _______________________________________________ x265-devel mailing list [email protected] https://mailman.videolan.org/listinfo/x265-devel
