Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > General > Newbies

Reply
 
Thread Tools Search this Thread Display Modes
Old 11th December 2019, 02:12   #1  |  Link
robo731
Registered User
 
Join Date: Jul 2013
Posts: 40
Better performance SW Decoding H265 or HW decoding H264

I've been trying to figure out the best of two options for decoding given my hardware.

I have a GTX 960M and an Intel i7-6700HQ CPU @ 2.60GHz.

The NVIDIA GPU does not support HEVC hardware decoding. So I'm trying to determine if I would be better off software decoding 10bit HEVC or leveraging the GPU's hardware decoding of 8bit H264.

I have limited knowledge here, so any input would be appreciated. Happy to answer any questions or provide any additional info that my be helpful.

Last edited by robo731; 13th December 2019 at 05:07. Reason: disambiguate
robo731 is offline   Reply With Quote
Old 11th December 2019, 03:40   #2  |  Link
AMED
Registered User
 
AMED's Avatar
 
Join Date: Sep 2004
Location: Auckland, New Zealand
Posts: 466
Don't over think it, using the CPU is perfectly fine as long as playback is smooth.
__________________
A Man Eating Duck
AMED is offline   Reply With Quote
Old 11th December 2019, 04:23   #3  |  Link
robo731
Registered User
 
Join Date: Jul 2013
Posts: 40
Ok, I haven't actually encoded the source yet, so I was trying to make a determination beforehand. Maybe I just need to try it out I guess.
robo731 is offline   Reply With Quote
Old 11th December 2019, 11:22   #4  |  Link
Asmodian
Registered User
 
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,429
1080p I assume? 4K 10 bit HEVC is going to be too much for a 6700HQ @ 2.6GHz. Note that your GPU cannot decode 10 bit H.264 in hardware either, but your CPU should be able to handle it.

Is size important to you? If you want as small as possible HEVC is worth investigating but if you don't mind somewhat larger files H.264 will definitely be easier for your system to play and looks great. Do test a sample file at your target resolution and framerate.
__________________
madVR options explained
Asmodian is offline   Reply With Quote
Old 11th December 2019, 14:42   #5  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 8,188
your intel iGPU should be able to decode HEVC.
huhn is offline   Reply With Quote
Old 13th December 2019, 04:55   #6  |  Link
robo731
Registered User
 
Join Date: Jul 2013
Posts: 40
Quote:
Originally Posted by Asmodian View Post
1080p I assume?
Yessir.

Quote:
Originally Posted by Asmodian View Post
GPU cannot decode 10 bit H.264 in hardware either
Right, but it should be able to do 8-bit I think.

Quote:
Originally Posted by Asmodian View Post
Is size important to you?
Yeah, I would like to keep the size down as much as possible.

Quote:
Originally Posted by Asmodian View Post
H.264 will definitely be easier for your system to play and looks great. Do test a sample file at your target resolution and framerate.
Thanks for the input, will do.

Quote:
Originally Posted by huhn View Post
your intel iGPU should be able to decode HEVC.
Yeah, just realized that recently after some searching, will give it a go I think.

Last edited by robo731; 13th December 2019 at 05:00. Reason: repond to huhn
robo731 is offline   Reply With Quote
Old 13th December 2019, 06:28   #7  |  Link
Asmodian
Registered User
 
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,429
Quote:
Originally Posted by robo731 View Post
Yeah, I would like to keep the size down as much as possible.
HEVC is very interesting then, it will be smaller for the same quality compared to 8 bit H.264. Using your iGPU for hardware decoding is good advice, but your CPU might be fine software decoding 10 bit HEVC too. Assuming reasonably low bitrates and framerates and using a 64 bit player.
__________________
madVR options explained
Asmodian is offline   Reply With Quote
Reply

Tags
10bit, decoding, gpu, h264, hevc. h.265

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 22:04.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.