[x265] [ANN] x265 0.8 released

[Purvin Pandit]

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: steve at borho.org
> To: x265-devel at videolan.org
> 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
> x265-devel at videolan.org
> https://mailman.videolan.org/listinfo/x265-devel
 		 	   		  
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