HEVC settings

Satoshi18 · 26th November 2020, 12:22

Hello, I previously used following settings for hi10p, ref=16:subme=11:rellis=2
what HEVC settings do I need to configure to get a good encode(in handbrake)?

microchip8 · 26th November 2020, 14:10

You're using too many reference frames. 16 is way too much, even for anime encodings. Good values for feature films/film series is between 4 and 6. Anything higher is not beneficial and can actually degrade quality for live action content. For anime, you can up it by 2 more

As for comparable settings for x265, that'll be ref=6:subme=5:rd=6. However, there are other things to tweak like psy-rd and psy-rdoq. I like using high values for these options (psy-rd=4 and psy-rdoq=16). A qcomp of 0.7 is also nice. Also, using aq mode 1 seems to give most of the time the best subjective quality. The other aq modes are too unpredictable and some just waste bits for no apparent image improvement

Satoshi18 · 26th November 2020, 15:05

oh ok, thanks for the info

Forteen88 · 28th November 2020, 16:51

You should do a test-encode first (I prefer lower psy-rdoq), write this in your Avisynth+ script to only encode the first 1000 frames:
Trim (0,1000)

BTW, I tried setting a higher --ref than 6 in x265, but x265 showed error and exited.

Satoshi18 · 1st December 2020, 13:04

Quote:

Originally Posted by microchip8

You're using too many reference frames. 16 is way too much, even for anime encodings. Good values for feature films/film series is between 4 and 6. Anything higher is not beneficial and can actually degrade quality for live action content. For anime, you can up it by 2 more

As for comparable settings for x265, that'll be ref=6:subme=5:rd=6. However, there are other things to tweak like psy-rd and psy-rdoq. I like using high values for these options (psy-rd=4 and psy-rdoq=16). A qcomp of 0.7 is also nice. Also, using aq mode 1 seems to give most of the time the best subjective quality. The other aq modes are too unpredictable and some just waste bits for no apparent image improvement

But I had thought for anime, more reference frames, more quality, better compression etc?

microchip8 · 1st December 2020, 15:44

Quote:

Originally Posted by Satoshi18

But I had thought for anime, more reference frames, more quality, better compression etc?

It's placebo. Above 10 ref frames you won't notice a difference in anime encoding

larisk2 · 4th December 2020, 12:59

1)There is a lot of information on the web that the H. 264 or H. 265 format can be opened by programs for Windows.
I had to spend a lot of time to download and install all this software. As a result, no application was able to play the video in part 264. How can I open the H264 file from a surveillance camera?

Emulgator · 4th December 2020, 14:15

Surveillance camera makers often have proprietary codec implementations.
You have to install their codec on your system.
Throw the offending file on mediainfo, note down the fourcc.
(Geovision MPEG-4 AVC coming into my mind, I had to do the same, going to their website, download and install their codec).

26th November 2020, 12:22	#1 \| Link
Satoshi18 Registered User Join Date: Jul 2020 Posts: 18	HEVC settings Hello, I previously used following settings for hi10p, ref=16:subme=11:rellis=2 what HEVC settings do I need to configure to get a good encode(in handbrake)?

26th November 2020, 14:10	#2 \| Link
microchip8 ffx264/ffhevc author Join Date: May 2007 Location: Belgium Posts: 1,674	You're using too many reference frames. 16 is way too much, even for anime encodings. Good values for feature films/film series is between 4 and 6. Anything higher is not beneficial and can actually degrade quality for live action content. For anime, you can up it by 2 more As for comparable settings for x265, that'll be ref=6:subme=5:rd=6. However, there are other things to tweak like psy-rd and psy-rdoq. I like using high values for these options (psy-rd=4 and psy-rdoq=16). A qcomp of 0.7 is also nice. Also, using aq mode 1 seems to give most of the time the best subjective quality. The other aq modes are too unpredictable and some just waste bits for no apparent image improvement __________________ TV: Samsung 50" QE50Q60T AVR: Yamaha HTR-4069 5.1 CD Player: Yamaha CD-S300 DAB+ Tuner: Yamaha T-D500 BD Player: Samsung UBD-M8500 UHD Speakers: Klipsch 5.1 Reference Phono: TEAC TN-180BT Last edited by microchip8; 26th November 2020 at 14:19.

4th December 2020, 14:15	#8 \| Link
Emulgator Big Bit Savings Now ! Join Date: Feb 2007 Location: close to the wall Posts: 932	Surveillance camera makers often have proprietary codec implementations. You have to install their codec on your system. Throw the offending file on mediainfo, note down the fourcc. (Geovision MPEG-4 AVC coming into my mind, I had to do the same, going to their website, download and install their codec). __________________ "To bypass shortcuts and find suffering...is called QUALity" (Die toten Augen von Friedrichshain) "Data reduction ? Yep, Sir. We're working on that issue. Synce invntoin uf lingöage..." Last edited by Emulgator; 4th December 2020 at 14:17.

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26th November 2020, 15:05	#3 \| Link
Satoshi18 Registered User Join Date: Jul 2020 Posts: 18	oh ok, thanks for the info

28th November 2020, 16:51	#4 \| Link
Forteen88 Herr Join Date: Apr 2009 Location: North Europe Posts: 518	You should do a test-encode first (I prefer lower psy-rdoq), write this in your Avisynth+ script to only encode the first 1000 frames: Trim (0,1000) BTW, I tried setting a higher --ref than 6 in x265, but x265 showed error and exited.

4th December 2020, 12:59	#7 \| Link
larisk2 Registered User Join Date: Nov 2020 Posts: 7	1)There is a lot of information on the web that the H. 264 or H. 265 format can be opened by programs for Windows. I had to spend a lot of time to download and install all this software. As a result, no application was able to play the video in part 264. How can I open the H264 file from a surveillance camera?