Do you have some information on quality/speed improvements relative to previous release? Thanks,-Purvin
> Date: Tue, 4 Mar 2014 13:32:27 -0600 > From: [email protected] > To: [email protected] > Subject: [x265] [ANN] x265 0.8 released > > Hello, > > x265 0.8 is a regularly scheduled feature release > > = New in 0.8 = > > * 4:4:4 internal color space is now supported. Input pictures must also > be 4:4:4, 8 or 10bit. We advise to disable weightp with 4:4:4. Note > that since the HEVC Range Extensions are not finalized, this feature > should be considered highly experimental. Our output streams may not > be compliant with the final spec. > > * Improved VBV. x265 will now do mid-frame QP adjustments in order to > better meet the bit target. Further improvements will be in the next > release (partial slice re-encode when bit budget is very tight). > > * FPS is finally handled in a sane fashion. It may be configured as a > rational number (numerator/denominator) or as a float. The frame rate > is now signaled in the VPS header for use by the decoder. > > * VUI signaling is now exposed in the x265_param structure and in the > x265 CLI. The exact params and CLI options should be considered > experimental at this point, and are liable to change. > > * Near full ASM coverage of the 8bit build, and much more 10bit assembly > than the previous release. All of the interpolation and intra > primitives that were written with SIMD intrinsics have been replaced > with assembly routines. > > * Input pixel bit depth is now decoupled from the internal bit depth. > An 8bpp build and a 16bpp build of x265 will both be able to encode > 8bit or 10bit or 16bit raw video streams. The encoder will shift and > mask pixels as necessary to get them to the internal depth. > > * Motion compensated weight analysis. This will be further improved in > the next release. > > = CLI changes since 0.7 = > > # Added # > > --scenecut <integer> > -i/--min-keyint <integer> > > --vui > --sar <int:int|int> > --overscan <string> > --videoformat <string> > --range <string> > --colorprim <string> > --transfer <string> > --colormatrix <string> > --chromaloc <integer> > --[no-]fieldseq > --[no-]framefieldinfo > --crop-rect <string> > --timinginfo > --nal-hrd > --bitstreamrestriction > --subpichrd > > See CLI help for descriptions > > # Replaced options, to sync with x264 # > > --refresh <integer> is now --[no]open-gop > --frame-skip <integer> is now --seek <integer> > -i/--keyint <integer> is now -I/--keyint <integer> (short opt case change) > > > = Upcoming work = > > The next release will focus on improving all of the recently added > features, particularly VBV and adaptive quant, and focusing heavily on > improving perceptive visual quality. > > Regards, > > -- > Steve Borho > _______________________________________________ > x265-devel mailing list > [email protected] > https://mailman.videolan.org/listinfo/x265-devel
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