High quality upscaling

Support for HandBrake on Linux, Solaris, and other Unix-like platforms
Forum rules
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
Post Reply
linuxuser
Bright Spark User
Posts: 184
Joined: Fri Jan 06, 2012 7:47 pm

High quality upscaling

Post by linuxuser »

Is it possible to do high quality upscaling (better than with a tv) with handbrake? I would like to upscale to 1920x1080 from PAL-VHS and better.
User avatar
JohnAStebbins
HandBrake Team
Posts: 5583
Joined: Sat Feb 09, 2008 7:21 pm

Re: High quality upscaling

Post by JohnAStebbins »

Why?

Seriously, most current TVs now have built-in scalers that are exceptional quality. So scaling your videos at encode time only inflates file size for no perceptible gain in quality.
linuxuser
Bright Spark User
Posts: 184
Joined: Fri Jan 06, 2012 7:47 pm

Re: High quality upscaling

Post by linuxuser »

You are right, but in certain cases it could be better to upscale slowly, than on-the fly. I think on something like -sws 9 (Lanzcos) with mencoder.
User avatar
JohnAStebbins
HandBrake Team
Posts: 5583
Joined: Sat Feb 09, 2008 7:21 pm

Re: High quality upscaling

Post by JohnAStebbins »

I'll be nice an assume you know what you are doing :roll: HandBrake's scaler is libswscale and we use the Lanzcos option.
linuxuser
Bright Spark User
Posts: 184
Joined: Fri Jan 06, 2012 7:47 pm

Re: High quality upscaling

Post by linuxuser »

At least I would like to test the difference. Most people are ripping dvds or blurays, I noticed there is a big difference in optimizing the quality when the source is an own camcorder video, especially very old ones.
Post Reply