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 > Video Encoding > High Efficiency Video Coding (HEVC)

Reply
 
Thread Tools Search this Thread Display Modes
Old 16th February 2020, 21:31   #1  |  Link
Marsu42
Huba Huba
 
Marsu42's Avatar
 
Join Date: Aug 2005
Location: Palumbian Jungle
Posts: 60
AVC to HEVC transcoding advice for low bitrate sources

I'm currently trancoding a video archive to save space. The videos are AVC with vastly different bitrates from 1.5 to 15 MBps, usually with little motion.

With my former, extremely old PC (Core1 Quad) using x265 was a no-go. With my more currrent PC (Haswell Dual) I could switch if there is a clear advantage. Yes, I know, your boxes are waaaaaaaay faster.

I'm downsizing to 720p to save some further space and because my usual monitor isn't full hd anyway.

=> QUESTION: Is there a low source bitrate threshold like 3-5 MBps that could result in _worse_ transcoding quality AVC=>HEVC than AVC=>AVC? Or is HEVC encoding too similar to AVC so it doesn't make a difference? Or does HEVC result in significantly enhanced quality in transcoding in any case?

I'm thinking of the different artifact types, which is why transcoding different image formats like dct-jpeg and wavelet-jpeg2000 isn't a good idea with low quality sources.
__________________
"The innocent have nothing to fear" :stupid:

Last edited by Marsu42; Yesterday at 01:01. Reason: typo
Marsu42 is offline   Reply With Quote
Reply

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 07:50.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.