Video bitrate for push/view links
How to control video bitrates for basic push/view links
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How to control video bitrates for basic push/view links
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The default video bitrate for simple push/view links is 2500-kbps.
By default, both outgoing and incoming video bitrates are set at 2500-kbps. This default setting and parameters are different if using and explained in detail .
There are five parameters we will take a look at:
-> push side
-> push side
-> push side
-> view side
-> view side
Sets the target and maximum outgoing video bitrate on the source side.
The push link sets the outgoing and incoming video bitrate to 4000-kbps. The view link doesn't need an additional parameter as its bitrate is set at 4000-kbps because the push link is using &ovb.
As doing some testing there were these results:
All the three push parameters are always limiting the maximum. So if you set one of the three parameters to a value, the outgoing video bitrate will never be higher than you set it.
&tsb also always limits the bitrate on the viewer side, whereas &vb is overwritten by &ovb and &mvb.
&ovb is overwriting &vb
&mvb is overwriting &vb
&tsb is stronger than &ovb
&mvb is similar to &ovb but it sets the target and maximum bitrate per stream out.
Every view link has a video bitrate of 1000-kbps.
Limits the total outbound video bitrate to a defined value.
The incoming video bitrate will still default to around 2500-kbps but permits the viewer to increase it on their end with <b telling the push link to not get higher than 5000-kbps total outgoing bitrate.
The view link is setting the target and maximum video bitrate per incoming stream.
The view link is setting the bitrate per incoming stream (in this case 2000-kbps). So if you have a view link with three incoming video feeds: &view=stream1,stream2,stream3 - every source is pushing 2000-kbps as &vb=2000 and the view link has a combined bitrate of 6000-kbps.
This is similar to but it sets the target and maximum bitrate for all incoming streams combined.
So if you have a view link with three incoming video feeds: &view=stream1,stream2,stream3 - every source is pushing 1000-kbps as &tsb=3000.