MPEG2 Video Quality Settings on Renderer level

If you have a suggestion for a feature, post it here

MPEG2 Video Quality Settings on Renderer level

Postby ExSport » Sat May 01, 2010 3:32 pm

Hi Shagrath
Please it is possible to define encoding quality on renderer level?
Due to not working "bandwidth limiting" and also it is heavily CPU dependant it will be better to set quality to obtain better bitrates.
I tried
Code: Select all
keyint=15:vqscale=1:vqmin=2
with bandwidth limit and result is:
- bandwidth maximum is not respected so it shutter on TV (Panasonic TV renderer)
- 4coreCPU can't handle it
But when I used
Code: Select all
keyint=15:vqscale=1:vqmin=3:vqmax=3
for Panasonic TV, everything was OK, bitrate about 70Mbit (1080p movie) and no shutter, no CPU spikes.
It is possible to implement it in new versions?
Many thanks
ExSport
 
Posts: 2168
Joined: Mon Jan 19, 2009 5:40 pm

Re: MPEG2 Video Quality Settings on Renderer level

Postby shagrath » Mon May 03, 2010 7:36 pm

I found keyint=25 to be better in the bandwidth limiter result. I've added a new parameter nonetheless (CustomMencoderQualitySettings)
shagrath
Project Lead
 
Posts: 2668
Joined: Wed Jan 14, 2009 1:39 pm

Re: MPEG2 Video Quality Settings on Renderer level

Postby ExSport » Wed May 05, 2010 11:28 am

Many thanks
Yes, sorry, it should be 25....but I tested it also with 50, 100 and more(default in MEncoder is 300 I suppose) with same results.
When 20Mbit set, it worked but CPU was quite overloaded but when used 40, 50, 70, 80, 90 etc. it always started to shutter because bitrate was fluctuating about 90Mbit also when 40Mbit limit set.
I found that renderer was able to play 75Mbit without shutter but when used limit bigger than 40Mbit, real bandwidth was about 80-90Mbit = shuttering.
Tested same part of video and peak bitrate was about 88Mbit whatever limit was set (>=40Mbit)
So many thanks for new "CustomMencoderQualitySettings" 8-)
ExSport
 
Posts: 2168
Joined: Mon Jan 19, 2009 5:40 pm


Return to Feature Suggestions

Who is online

Users browsing this forum: Bing [Bot] and 2 guests