Cannot connect with UDP stream

[jacknsly]

Hello there,

I am using VLC media player 3.0.9.2 Vetinari on a Ubuntu 20.04 machine. And I have two PCAP files, containing an MPEG TS.
In both files the destination IP address and the destination ports are identical. The destination IP address is a source specific multicast address (232.100.100.1).

When I run

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sudo tcpreplay -i lo first_file.pcap

I can connect the VLC player via

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vlc udp://@232.100.100.1:<dstport>

So I can see the video.

When I try this with the second stream

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sudo tcpreplay -i lo second_file.pcap

it seems, that I don't get any connection to the stream with

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vlc udp://@232.100.100.1:<dstport>

In Wireshark, I can see, that tcpreplay works fine, but
I don't get any audio or video in the VLC player.

I also tried

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vlc udp://<src ip>@232.100.100.1:<dstport>

, but it does not work.

With wireshark, I can export the MPEG TS from the PCAP file and save it as a ts file.
This file runs perfectly fine, so it seems, that the video data of the second stream are correct.

Am i missing something here?

This is my first post here, so please let me know, if I forgot something.

Thank you very much!