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RTMP from DAHUA camera

Aleksej 2022-10-31 12:04:46 UTC in Nimble Streamer

Good afternoon.
When sending video using Larix Broadcaster from phone, Nimble Streamer works.
When I try to send a stream from a Dahua DH-IPC-HDW1431T1P camera (only a video stream is sent from it) to the same address, it doesn't work. The following errors appear in the Nimble Streamer logs:

[2022-10-31 12:02:23 P1-T18] [rtmp] E: unknown message stream id for deleteStream, msg_id=-1879044624
[2022-10-31 12:02:28 P1-T18] [rtmp] E: unknown message stream id for deleteStream, msg_id=-1879044624
[2022-10-31 12:02:33 P1-T18] [rtmp] E: unknown message stream id for deleteStream, msg_id=-1879044624

I've already tried everything, it doesn't work. Can you suggest any solution?
By the way, the camera sends only a video stream (does not record sound).

Aleksandr 2022-10-31 12:18:52 UTC 

Hello Aleksej, for Dahua IP cameras - try adding the rtmp_chunk_size = 1M parameter to /etc/nimble/nimble.conf and restart Nimble.
If it doesn't help - file a ticket and share more details:
https://wmspanel.com/help

Aleksej 2022-10-31 13:06:13 UTC 

Aleksandr, thank you very much! You saved my day.
Where can I read more about this setting?

Aleksandr 2022-11-01 17:36:50 UTC 

Hello Aleksej, that parameter is not yet described on the nimble.conf related page:
https://wmspanel.com/nimble/param
But, technically, it sets the RTMP chunk size which Nimble negotiates with the source, Dahua seems accepting chunk sizes less than 3M.

Aleksej 2022-11-04 09:41:46 UTC 

Thank you again!

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