Flussonic Media Server documentation

Constant bitrate UDP

We assume that you have read page about sending UDP multicast, because this page is an extension of that basic article.

Here you can learn how to configure Flussonic to send UDP multicast video suitable for muxing to DVB-C and DVB-S streamers.

Media requirements Anchor Anchor x2

When you want to send video to DVB-C network or even to satellite you can get a strict hardware requirement: constant bitrate (really constant, not constant average) and frequent PCR insertion.

Sometimes you can meet very smart DVB muxer that will be able to merge streams together and allow variable bitrate, but usually you need to fill your dedicated band with MPEG-TS bytes.

Flussonic can do it by adding zero padding that cannot be added by headend.

Also this device will require sending PCR (stream timing) very often: up to once per 20 ms, so it may happen that we will need to put 2 PCR during single frame.

This is also possible with Flussonic

Configuration Anchor Anchor x2

Configure UDP push in stream with several options:

stream ort {
 url hls://provider.iptv/ort/index.m3u8;
 push udp://239.0.0.1:1234?cbr=2200&pcr=20;
}

Here you tell to pad bitrate up to 2200 kbit per second and put PCR each 20 milliseconds.