DASH streaming

[lreggian]

We are experiencing difficulties in reproducing DASH streaming from a system composed by

• tx side: Encoder Elemental + Rohde&Schwarz BSCC + R&S SDE900 + R&S exciter TCE 901.
• rx side: B210 SDR board, rt-mbms-modem + rt-mbms-mw on Ubuntu 22.04 LTS

We can observe that:

• The modem works correctly and shows no errors.

• At the output of the mw, the segment files can be downloaded but the index seems missing, even if it is present at the BSCC side.

• Using the rt-wui application or other players, no video can be reproduced

• We see the following fields at http://127.0.0.1:3020/mw-api/services: m3u = “” sdp = “v=0\no=ROHDE-SCHWARZ-BSCC 269087077 1668670914 IN IP4 11.11.11.11\ns=DASH Streaming Session 0x1009f165\ni=File Download Session\nt=3877659714 4823739714\na=mbms-mode:broadcast-mbsfn 269087077\nc=IN IP4 238.1.1.111/127\na=source-filter: incl IN IP4 * 192.168.0.1 \nb=AS:4000\nm=application 40101 FLUTE/UDP 0\na=flute-tsi:16\na=flute-ch:1\na=3GPP-QoE-Metrics:metrics={Object_Loss};rate=null;resolution=10\na= 3GPP-QoE-Metrics:metrics={Network_Resource};rate=null;resolution=10\n” service_description = “” service_name = “” service_tmgi = “00000009f165” stream_mcast = “238.1.1.111:40101” stream_tmgi = “00001009f165” stream_type = “FLUTE/UDP”   We are able to transmit and receive correctly HLS streaming with the same chain. Are you aware of issues with the DASH configuration at the 5G-MAG receiver or specific settings at the transmitter side ?

[dsilhavy]

Can you please share a screenshot of the DASH files that arrive at the middleware.

[lreggian]

Here are a couple of screenshots of the files that arrive at the mw. Many thanks.

[dsilhavy]

@lreggian Can you please try again with verson 0.10.0 of the MW: https://github.com/5G-MAG/rt-mbms-mw/releases/tag/v0.10.0

I also documented the different configuration options here: https://github.com/5G-MAG/Documentation-and-Architecture/wiki/Configuration-Quick-Start-Guide

[dsilhavy]

@lreggian Any activity here from your side?

[lreggian]

Not yet, we were not able to use the version 0.10.0 of the middleware because of compatibility issues. Hopefully, we will be back on this and DASH streaming in the upcoming 2-3 months.