Re: [x265] Less FPS

Sunil, all, >From our experiments a few months ago, gains from AVX-512 were noticeable (>5%) at veryslow preset and 4K resolution. Best, Alex. On Thu, Feb 28, 2019, 06:06 Sunil Kumar wrote: > Thanks Mario and Kalyan for reply, > I have checked with same command avx512 is giving more FPS compared

Re: [x265] Less FPS

using? > > On Thu, Feb 28, 2019 at 8:06 PM Alex Giladi wrote: > >> Sunil, all, >> From our experiments a few months ago, gains from AVX-512 were noticeable >> (>5%) at veryslow preset and 4K resolution. >> Best, >> Alex. >> >> On Thu, Feb 28,

Re: [x265] [x265 Patch] Histogram Based Scene Cut Detection

Hi Srikanth, Why would there be any relationship between scene cut detection method and frame duplication? Functionality-wise, they should be independent irrespective of the underlying implementation. Best, Alex. On Tue, Nov 19, 2019 at 3:13 AM Srikanth Kurapati < srikanth.kurap...@multicorewarein

Re: [x265] [PATCH] Edge Aware Quad Tree Establishment

Why would rskip=2 not work on rd > 4? Is there a technical reason, or is there an implicit assumption that the users won't want to use rskip at rd > 4? On Wed, Jan 22, 2020, 04:00 Kavitha Sampath wrote: > > > On Tue, Jan 21, 2020 at 11:32 AM > wrote: > >> # HG changeset patch >> # User Srikanth

Re: [x265] [PATCH] zone: Enable strict VBV conformance for zone encode as per requirement

Does the code below mean that you are doing CBR HRD (i.e., use filler NAL units to keep the buffer full)? If yes -- why? +++ b/source/encoder/ratecontrol.cpp > @@ -1279,6 +1281,7 @@ > m_param->rc.vbvMaxBitrate = > m_param->rc.zones[i].zoneParam->rc.vbvMaxBitrate; >

Re: [x265] [PATCH] Introduce CLI/param options to control min and max VBV fullness

Hi Aruna, I don't understand the relationship between the patch and compression efficiency / compliance: +Increasing the minimum required fullness shall improve the compression efficiency, +but is expected to affect VBV conformance. Experimental option. 1. Does the result produce st

Re: [x265] [PATCH][MASTER] Support for Decoding-Energy-Rate-Distortion Optimization (DERDO)

Dear Christian, Is there a paper describing the approach? Best, Alex. On Thu, Oct 22, 2020 at 7:08 AM Christian Herglotz wrote: > > > -- > Dr.-Ing. Christian Herglotz > > Chair of Multimedia Communications and Signal Processing > Friedrich-Alexander University Erlangen-Nürnberg > Cauerstr. 7, D-9

Re: [x265] Artifacts with vbv-init/vbv-end

Hi Diego, I would try 0.9 as opposed to 0.5 on both vbv-init and vbv-end. There is also an optional --vbv-end-fr-adj parameter, you may want to play with it. May want to tune it, 12+ frames is best at hiding the stitch point. Best, Alex. On Thu, Oct 29, 2020 at 12:23 PM Diego Pasqualin wrote: > >

Re: [x265] [PATCH][master] Add CLI option for simplifying colorimetry parameters

Nitpicking: p->vui.bEnableChromaLocInfoPresentFlag = 1; appears in each statement -- shouldn't it go above the switch statement? On Fri, Feb 26, 2021 at 8:35 AM Aruna Matheswaran < ar...@multicorewareinc.com> wrote: > > > On Fri, Feb 26, 2021 at 4:35 PM Niranjan Bala < > niran...@multicorewarein

Re: [x265] [PATCH] Modify the crf 2 pass

Hi Mahesh, What is the actual modification of crf in the patch? Best, Alex On Thu, Aug 5, 2021, 2:15 AM Mahesh Pittala wrote: > From 5065d31b4bfe36e05c94dd79db119cd1fd23aa23 Mon Sep 17 00:00:00 2001 > From: lwWang > Date: Fri, 25 Jun 2021 17:17:03 +0800 > Subject: [PATCH] Modify the crf 2 pass

Re: [x265] [PATCH] Modify the crf 2 pass

37 PM Mahesh Pittala wrote: > > Hi Alex, > >This patch is to re-encode some separated gops to improve the > compression efficiency. > > Thanks, > Mahesh > > On Fri, Aug 6, 2021 at 6:30 AM Alex Giladi wrote: >> >> Hi Mahesh, >> What is the actu

Re: [x265] compilation error -

That's a *really* old GCC version. The functions you are mentioning in 3 are GCC built-ins, not library functions. On Thu, Sep 30, 2021, 1:08 AM yehuda marko wrote: > Hello , > > > > I’m using Gnu compiler , version 3.3.2 , (product vxworks , HW PPC ) , I > have the following questions: > > > >

Re: [x265] [PATCH] Add Dolby Vision 8.4 Profile Support

You're better off talking to Dolby. Overall, it's same as 8.1, but based on HLG. On Tue, Oct 12, 2021, 6:14 AM Siva Viswanathan wrote: > Hello Derek, > > We already started looking at it and we realized that we need 8.4 profile > spec to validate the implementation, hence the delay here > > Plea

Re: [x265] How to use vbv-end and vbv-init for chunked encoding

Hi Vassily, I would also add that you need to set a reasonable amount of frames for the VBV adjustment, otherwise your last frames may suffer quality-wise. Best, Alex. On Wed, Mar 7, 2018 at 9:28 AM, Aruna Matheswaran < ar...@multicorewareinc.com> wrote: > Hi, > > vbv-init specifies the portion

Re: [x265] [PATCH] Add vbv-end tolerance check

Does this "5% tolerance" imply that CPB fullness as defined by vbv-end can be exceeded by 5%? On Fri, Jun 8, 2018 at 6:39 AM, wrote: > # HG changeset patch > # User Aruna Matheswaran > # Date 1523005500 -19800 > # Fri Apr 06 14:35:00 2018 +0530 > # Node ID ed853c4af6710a991d0cdf4bf68e00fe3

Re: [x265] [PATCH] Add vbv-end tolerance check

Matheswaran < ar...@multicorewareinc.com> wrote: > > > On Mon, Jun 11, 2018 at 3:34 AM, Alex Giladi > wrote: > >> Does this "5% tolerance" imply that CPB fullness as defined by vbv-end >> can be exceeded by 5%? >> > > yes, the CPB fullness can vary by

Re: [x265] [PATCH] Add vbv-end tolerance check

i, PhD > Video Architect @ MulticoreWare > http: <http://www.multicorewareinc.com/>//www.multicorewareinc.com > <http://www.multicorewareinc.com/> > +91 9884989331 > > On Mon, Jun 11, 2018 at 10:56 PM, Alex Giladi > wrote: > >> This may still break HRD compliance -- imagine you

Re: [x265] [PATCH] CEA 608/708 Support

I would rename the "usersei-file" option into something like "nalu-file", as the input file format allows arbitrary NAL units rather than only SEIs (despite only prefix SEIs being implemented). On Wed, Jun 20, 2018 at 4:43 AM, wrote: > # HG changeset patch > # User induma...@multicorewareinc.co