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x265 Encoder is a free software library and application for encoding video streams into the H.265/MPEG-H HEVC compression format, and is released under the terms of the GNU GPL. Command line software.

Free software
OS:Windows
Version:1.9+9
Released:
File size:3MB
Portable version
Version history available

8.3/10
3 votes


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  Latest version:
1.9+9 (February 08, 2016)



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Visit developer's site

Download x265 Encoder 1.9+9 (portable)



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Supported operating systems:
Windows



More information and other downloads:
More x265 Encoder mirror downloads:
http://chromashift.org/x265_builds/
http://builds.x265.eu/
http://x265.ru/en/
https://encoder.pw



x265 Encoder screenshot
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User options:
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Version history / Release notes / Changelog:
1.9+9
nandaku2 Merge with stable 2016-02-05
nandaku2 threadpool: stop all pools before destroying Branches stable 2016-02-05
nandaku2 nit: whitespace 2016-02-02

1.9+7
Sagar Kotecha analysis: Reduce data dump in analysis save mode for inter picture 2016-01-25
Sagar Kotecha analysis: Reduce data dump in analysis save mode for intra picture 2016-01-25
Sagar Kotecha clean analysis save/load read/write 2016-01-25
Dnyaneshwar Gorade testbench: port x264 stack & register check code for ARM arch 2016-02-01

x265 version 1.9 has now been released. This release supports many new features as well as additional assembly optimizations for Main12, intra prediction and SAO. Recently added features lookahead-slices, limit-refs and limit-modes have been enabled by default in the supported presets.

=================== New Features ==============================================
Quant offsets: This feature allows block level quantization offsets to be specified for every frame. An API-only feature.
--intra-refresh: Keyframes can be replaced by a moving column of intra blocks in non-keyframes.
--limit-modes: Intelligently restricts mode analysis.
--max-luma and --min-luma for luma clipping, optional for HDR use-cases
Emergency denoising is now enabled by default in very low bitrate, VBV encodes
====================== API Changes ==============================================
x265_frame_stats returns many additional fields: maxCLL, maxFALL, residual energy, scenecut and latency logging
--qpfile now supports frametype 'K"
x265 now allows CRF ratecontrol in pass N (N greater than or equal to 2)
Chroma subsampling format YUV 4:0:0 is now fully supported and tested
================= Presets and Performance ==========================================
Recently added features lookahead-slices, limit-modes, limit-refs have been enabled by default for applicable presets.
The default psy-rd strength has been increased to 2.0
Multi-socket machines now use a single pool of threads that can work cross-socket.

View full changelog



All features / Full description:
Encoder features
Full prediction and transform quad-tree recursion supported
Adaptive B-frame placement
B-frames as references / arbitrary frame order
CABAC entropy coding
Intra: all block types (32x32, 16x16, 8x8, 4x4, and PCM with all predictions)
Inter P: all partitions (from 64x64 down to 8x4)
Inter B: partitions from 64x64 down to 8x4 (including all merge modes
and biprediction)
Weighted prediction for P slices
Multiple reference frames
Ratecontrol: constant quantizer, constant quality, single pass ABR, optional VBV
Scenecut detection
Parallel encoding on multiple CPUs, both frame-level and wavefront parallelism


Sections/Browse similar tools:
Video Encoders (H264/H265/MP4/MKV)



Alternative to x265 Encoder:
DivX HEVC Encoder



Guides and How to's:
x265 Usage - Read
View all guides with guide description here



Comments

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3 comments, Showing 1 to 3 comments
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Xvid style encoder were every preset is pleasing for the eye in contrast to x264 were only Placebo prevents eye cancer but there is one huge problem as it looks artificial as there is a film over it (others called it washed out)


Posted October 23, 2015 by . Tool version 1.7.0.374 using OS Windows 8 64-bit
Ease of use 5 of 10 Functionality 5 of 10 Value for money 5 of 10 Overall score 5 of 10



I have been using the stable version non stop with excellent results. Far more superior than x264 and this is only the beginning. A big thank you to the developers for this amazing encoder.


Posted October 10, 2015 by . Tool version 1.8.31 using OS Windows 7 64-bit
Ease of use 10 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 10 of 10



Can't believe I'm the first to review such a great program here. The compression of this encoder is unreal and getting cleaner and faster as time goes on. By my own tests, 1.7 is about 33% faster than 1.6 which is amazing and hope further optimizations happen. x264 had to start somewhere and x265 will be no different.

Over the past month I have been encoding with it on high bitrate x264 files that I don't care to keep at their current file size, so I encode them with this with avisynth to retain most of the detail at a fraction of the size. I'm also doing this just to get a handle on this new HEVC beast.

All I need now is a HEVC TV Player...



Posted July 10, 2015 by . Tool version 1.7 using OS Windows 7 64-bit
Ease of use 9 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 10 of 10
Guides: https://x265.readthedocs.org/en/default/cli.html


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