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Old 22nd April 2017, 19:58   #5261  |  Link
nevcairiel
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Quote:
Originally Posted by Natty View Post
how to use 10 bit lambda table
Its always used when you encode 10-bit content, and any builds of the last few days should have the new table.
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Old 23rd April 2017, 01:36   #5262  |  Link
pradeeprama
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x265 version 2.4 has been released. This release incorporates support for the new HDR10+ standard, and revised lambda tables for main, main10, and main12 profiles that significantly improve visual quality!

Version 2.4 can now be downloaded from here (md5: ab0986aa5c4465b874de94095b0d0cae). Full documentation is available at http://x265.readthedocs.io/en/stable/.

Release Notes for Version 2.4
======================

Release date - 22nd April, 2017.

Encoder enhancements
----------------------------------
1. HDR10+ supported. Dynamic metadata may be either supplied as a bitstream via the userSEI field of x265_picture, or as a json file that can be parsed by x265 and inserted into the bitstream; use --dhdr10-info to specify json file name, and --dhdr10-opt to enable optimization of inserting tone-map information only at IDR frames, or when the tone map information changes.
2. Lambda tables for 8, 10, and 12-bit encoding revised, resulting in significant enhancement to subjective visual quality.
3. Enhanced HDR10 encoding with HDR-specific QP optimizations for chroma, and luma planes of WCG content enabled; use --hdr-opt to activate.
4. Ability to accept analysis information from other previous encodes (that may or may not be x265), and selectively reuse and refine analysis for encoding subsequent passes enabled with the --refine-level option.
5. Slow and veryslow presets receive a 20% speed boost at iso-quality by enabling the --limit-tu option.
6. The bitrate target for x265 can now be dynamically reconfigured via the reconfigure API.
7. Performance optimized SAO algorithm introduced via the --limit-sao option; seeing 10% speed benefits at faster presets.

API changes
-------------------
1. x265_reconfigure API now also accepts rate-control parameters for dynamic reconfiguration.
2. Several additions to data fields in x265_analysis to support --refine-level: see x265.h for more details.

Bug fixes
--------------
1. Avoid negative offsets in x265 lambda2 table with SAO enabled.
2. Fix mingw32 build error.
3. Seek now enabled for pipe input, in addition to file-based input
4. Fix issue of statically linking core-utils not working in linux.
5. Fix visual artifacts with --multi-pass-opt-distortion with VBV.
6. Fix bufferFill stats reported in csv.

Happy Compressing!

x265 team.
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Old 23rd April 2017, 02:26   #5263  |  Link
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x265.exe 2.4+2-5bc5e73760cd

https://forum.videohelp.com/threads/...84#post2483884
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Old 23rd April 2017, 08:37   #5264  |  Link
dipje
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Quote:
Originally Posted by Selur View Post
not exactly, it was merged to default branch two days ago, and since then any new build includes the new lambda tables.
Ah so that was the catch I was missing .
It looked reverse on my end , (I've read it wrong it bitbucket apparently?),
Like it was added to the default branch , but 2 days ago that default branch was merged into 'stable branch.
So it depends which branch is used in the builds , but I believe most people who are nice enough around here use the default branch.

Anyway, talking about nice people who builds, can we expect a 2.4 build from LigH, or are you still having compilation problems?
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Old 23rd April 2017, 08:50   #5265  |  Link
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Quote:
Originally Posted by dipje View Post
Anyway, talking about nice people who builds, can we expect a 2.4 build from LigH, or are you still having compilation problems?
Over here, no compiler warnings happened.
But I didn't enable the HDR10+ thing, I was too lazy to edit CMakeLists.txt.
LigH's next build of x265 will appear sooner or later anyway
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Old 23rd April 2017, 10:14   #5266  |  Link
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quick question about the new options:
Code:
   --dhdr10-info <filename>      JSON file containing the Creative Intent Metadata to be encoded as Dynamic Tone Mapping 
   --[no-]dhdr10-opt             Insert tone mapping SEI only for IDR frames and when the tone mapping information changes.Default disabled
Do I get it right that: dhdr10-info is always required for dynamic hdr10 and dhdr10-opt is an option which allows to limit how often the tone mapping SEI is inserted?

Also does it also require '--hdr' or are those separate?
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Last edited by Selur; 23rd April 2017 at 10:23.
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Old 23rd April 2017, 11:34   #5267  |  Link
LigH
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Mateusz Brzostek proposed a patch:

[x265] [PATCH] cmake: set '-std=gnu++11' for GCC if ENABLE_DYNAMIC_HDR10 is on

but it has not yet been commited. And I have only little experience in manual working set management with TortoiseHg, I prefer using only commited updates.
_

P.S.: I tried to import this patch, but it failed with code 255. Might be because the base changeset is already outdated?
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Last edited by LigH; 23rd April 2017 at 11:53.
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Old 23rd April 2017, 11:41   #5268  |  Link
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multilib.sh should also be adjusted,..
for clang it's c++11 instead of gnu++1 and in encoder.h:
Code:
-    #include "dynamicHDR10\hdr10plus.h"
+    #include "dynamicHDR10/hdr10plus.h"
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Last edited by Selur; 23rd April 2017 at 11:47.
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Old 23rd April 2017, 11:55   #5269  |  Link
LigH
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Of course, I made my own builds script by adding "-DENABLE_DYNAMIC_HDR10=ON" to 10 and 12 bit libraries.
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Old 23rd April 2017, 12:42   #5270  |  Link
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x265 v2.4+2-5bc5e73760cd (MSYS/MinGW, GCC 6.3.0, 32 & 64bit 8/10/12bit multilib EXEs)

x265 [info]: HEVC encoder version 2.4+2-5bc5e73760cd
x265 [info]: build info [Windows][GCC 6.3.0][32 bit/64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2

Code:
https://bitbucket.org/multicoreware/x265/commits/branch/default
HDR10 Enabled
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Old 23rd April 2017, 13:01   #5271  |  Link
Ma
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Quote:
Originally Posted by LigH View Post
I tried to import this patch, but it failed with code 255. Might be because the base changeset is already outdated?
If you save 3 attachments "warnings.patch", "cmake-hdr10.patch" and "dhdr10.patch" to your x265 folder, you can execute (in MSYS)
patch -p1 <warnings.patch
patch -p1 <cmake-hdr10.patch
patch -p1 <dhdr10.patch

If you want clean source (remove these patches), please execute
hg update -C
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Old 23rd April 2017, 15:01   #5272  |  Link
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-limit-tu 4 is in slower and veryslow preset

a new issue I see is mediainfo don't show any info like depth 10, main 10, resolution 10 when using mkv

is this issue caused by mkvmerge, mediainfo or x265?

for mp4 output it's there:

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Old 23rd April 2017, 15:07   #5273  |  Link
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Quote:
a new issue I see is mediainfo don't show any info like depth 10, main 10, resolution 10 when using mkv
isn't new been that way for a few month as I remember, but I never really looked into it
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Old 23rd April 2017, 15:12   #5274  |  Link
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This is really new because every time when I update the x265 build I make a 8 bit and a 10 bit encode to verify it's actually a multi lib build.
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Old 23rd April 2017, 15:13   #5275  |  Link
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Strange, noticed this month ago,...
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Old 23rd April 2017, 15:14   #5276  |  Link
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I don't update mediainfo often, could be a mediainfo issue then, not sure when I updated it the last time.
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Old 23rd April 2017, 15:24   #5277  |  Link
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Mkvmerge somewhere between 10.0.0 and 11.0.0. But that doesn't necessarily mean it's a bug in mkvmerge.
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Old 23rd April 2017, 15:35   #5278  |  Link
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I've posted it also to Mosu's and Zenitram's thread.
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Old 24th April 2017, 13:51   #5279  |  Link
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Hi guys,

I want to know what's the deal with this --limit-tu option in new v2.4. is it on by default in slow and very slow presets or should we enable it manually?
If it's not default, what's the best value for it? which level of the option would affect the quality the lower?
I usually encode with slow preset. should I need other options we've talked before like --rskip --limit-refs 3 --limit-modes and so? I care about quality the most, but it won't hurt to have a faster encoding.

Thanks
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Old 24th April 2017, 14:02   #5280  |  Link
stax76
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Quote:
Originally Posted by LazyNcoder View Post
Hi guys,

I want to know what's the deal with this --limit-tu option in new v2.4. is it on by default in slow and very slow presets or should we enable it manually?
If it's not default, what's the best value for it? which level of the option would affect the quality the lower?
I usually encode with slow preset. should I need other options we've talked before like --rskip --limit-refs 3 --limit-modes and so? I care about quality the most, but it won't hurt to have a faster encoding.

Thanks
It's 4 with slower and veryslow, otherwise 0.

https://x265.readthedocs.io/en/default/presets.html

https://bitbucket.org/multicoreware/...#param.cpp-401
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