Pixalization in the video broadcast

C

cheinan

Member
Hello max

We start to run WCS in production, and we see a lot of Pixalization in the video broadcast
from many different users.
The poor quality with the Pixalization is very noticeable when there is movement in the video.
It seems that it is happens when broadcasting from Chrome and not from Firefox.
What is a good configure approach in order to reduce this Pixalization?

Is it connected to this Thread:
https://forum.flashphoner.com/threads/chrome-screensharing-very-bad-quality.11456/

Thanks
Cheinan
 
C

cheinan

Member
Hello max
After updating from WCS 5.0.3233 to WCS 5.1.3467
The poor video quality with the Pixalization is again very noticeable when broadcasting from Chrome.
and is much better when broadcasting from firefox.
In order to avoid this problem, the configuration of vp8 codec before H264 stayed the same:
codecs =opus,alaw,ulaw,g729,speex16,g722,mpeg4-generic,telephone-event,vp8,h264,flv,mpv

What is a good configure approach in WCS 5.1.3467 in order to reduce this Pixalization when broadcasting from Chrome?

Thanks
Cheinan
 
Max

Max

Administrator
Staff member
Hello
Try to set
Code: 
webrtc_cc2_twcc=false
in WCS_HOME/conf/flashphoner.properties file
 
Max

Max

Administrator
Staff member
Hello

You can edit following settings to improve video quality:
1. WCS_HOME/conf/wcs-core.properties
Code: 
-Xmx8g -Xms8g
2. WCS_HOME/conf/flashphoner.properties
Code: 
streaming_video_decoder_fast_start=false
webrtc_cc2_twcc=false
webrtc_cc_min_bitrate=200000
webrtc_cc_max_bitrate=500000
Regarding
Code: 
webrtc_cc_min_bitrate=200000
webrtc_cc_max_bitrate=500000
These two settings are applied to publishers.
So if your publishers have a good connection speed to server you have to set higher values.
If your publishers have a poor connection to server, try to set lesser values.
Make sure that publishers do not loss packets while communicating with your server over UDP.
 
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