Streaming multiple Argus 3 Pro fail if more than one camera defined

[mclardass]

Thanks to your help I was able to get neolink working with three Argus 3 Pro on an Rpi 3. I connected this to a Frigate install and things were working, albeit slowly, with all three streams displaying properly. For my "prod" install I copied the neolink config over to a hardwired i5 with 16GB RAM and SSD drives running Debian. I downloaded the appropriate version of neolink and installed dependencies. Using the config below I can get one stream working but if I enable two, and especially three, cameras the connections fail with the attached error.

Config:
bind = "0.0.0.0"
bind_port = 8554

[[cameras]]
name = "frontyard"
username = "admin"
password = "passwd"
uid = "camera_1"

# [[cameras]]
# name = "sideyard"
# username = "admin"
# password = "passwd"
# uid = "camera_2"

# [[cameras]]
# name = "backyard"
# username = "admin"
# password = "passwd"
# uid = "camera_3"

stream = "mainStream"
encryption = 2

Error:
2023-02-17T06:25:51Z DEBUG yaserde::de] Fetched StartElement(checkValue, {"": "", "xml": "http://www.w3.org/XML/1998/namespace", "xmlns": "http://www.w3.org/2000/xmlns/"})
[2023-02-17T06:25:51Z DEBUG yaserde::de] Fetched Characters(1651979568)
[2023-02-17T06:25:51Z DEBUG yaserde::de] Fetched EndElement(checkValue)
[2023-02-17T06:25:51Z ERROR neolink_core::bc_protocol::connection::bcconn] Deserialization error: Deserialization error
[2023-02-17T06:25:51Z ERROR neolink_core::bc_protocol::connection::bcconn] caused by: I/O error
[2023-02-17T06:25:51Z ERROR neolink_core::bc_protocol::connection::bcconn] caused by: Connection timedout when reading from udp channel
[2023-02-17T06:25:51Z DEBUG neolink_core::bc_protocol] Dropping camera
[2023-02-17T06:25:51Z WARN neolink_core::bc_protocol] Could not log out, ignoring: Connection error
[2023-02-17T06:25:51Z DEBUG neolink_core::bc_protocol::connection::bcconn] Shutting down BcConnection...
[2023-02-17T06:25:51Z DEBUG neolink_core::bc_protocol::connection::bcconn] Shutdown finished OK
[2023-02-17T06:25:51Z ERROR neolink::rtsp] Error streaming from camera backyard, will retry in 1s: Error while streaming backyard

Caused by:
    0: Media Deserialization error
    1: I/O error
    2: channel is empty and sending half is closed

[2023-02-17T06:25:51Z DEBUG neolink_core::bc::xml] Struct: start to parse "Extension"
...
[2023-02-17T06:25:51Z ERROR neolink_core::bc_protocol::connection::udpconn] Udp write poll aborted

I see the I/O errors but things were working fine on the Pi (over wifi) and I'm not seeing any network errors on the machine or router. Made sure iptables was empty so not a firewall issue this time :)

Any ideas? The other deserialization errors discussed don't seem to apply to my situation.
Thanks!

[mclardass]

Just odd that it successfully "logs in" then disconnects

[2023-02-18T20:57:58Z INFO neolink::rtsp] sideyard: Connected and logged in
[2023-02-18T20:57:58Z INFO neolink::rtsp] sideyard: Starting video stream Sub Stream (Fluent)
[2023-02-18T20:57:58Z INFO neolink::rtsp] frontyard: Connecting to camera at UID:
[2023-02-18T20:57:58Z INFO neolink::rtsp] frontyard: Logging in
[2023-02-18T20:57:58Z INFO neolink::rtsp] frontyard: Connecting to camera at UID:
[2023-02-18T20:57:58Z INFO neolink::rtsp] frontyard: Logging in
[2023-02-18T20:57:58Z INFO neolink::rtsp] backyard: Connecting to camera at UID:
[2023-02-18T20:57:58Z INFO neolink::rtsp] backyard: Logging in
[2023-02-18T20:57:58Z INFO neolink::rtsp] sideyard: Camera time is already set: 2023-02-18 15:57:56 -5
[2023-02-18T20:57:59Z INFO neolink::rtsp] sideyard: Camera reports firmware version v3.0.0.973_22051000
[2023-02-18T20:57:59Z INFO neolink::rtsp] sideyard: Starting video stream Main Stream (Clear)
[2023-02-18T20:57:59Z INFO neolink::rtsp] backyard: Connected and logged in
[2023-02-18T20:57:59Z INFO neolink::rtsp] frontyard: Connected and logged in
[2023-02-18T20:57:59Z INFO neolink::rtsp] frontyard: Starting video stream Sub Stream (Fluent)
[2023-02-18T20:57:59Z INFO neolink::rtsp] frontyard: Connected and logged in
[2023-02-18T20:57:59Z INFO neolink::rtsp] backyard: Camera time is already set: 2023-02-18 15:57:57 -5
[2023-02-18T20:58:00Z INFO neolink::rtsp] frontyard: Camera time is already set: 2023-02-18 15:57:58 -5
[2023-02-18T20:58:00Z INFO neolink::rtsp] backyard: Camera reports firmware version v3.0.0.973_22051000
[2023-02-18T20:58:00Z INFO neolink::rtsp] backyard: Starting video stream Main Stream (Clear)
[2023-02-18T20:58:00Z INFO neolink::rtsp] frontyard: Camera reports firmware version v3.0.0.973_22051000
[2023-02-18T20:58:00Z INFO neolink::rtsp] frontyard: Starting video stream Main Stream (Clear)
[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::udpconn] Camera requested disconnect
[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::udpconn] Udp read poll aborted
[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::bcconn] Deserialization error: Deserialization error
[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::bcconn] caused by: I/O error
[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::bcconn] caused by: Connection dropped when reading from udp channel
[2023-02-18T20:58:18Z WARN neolink_core::bc_protocol] Could not log out, ignoring: Connection error
[2023-02-18T20:58:18Z ERROR neolink::rtsp] Error streaming from camera backyard, will retry in 1s: Error while streaming backyard

Caused by:
    0: Media Deserialization error
    1: I/O error
    2: channel is empty and sending half is closed

[2023-02-18T20:58:18Z ERROR neolink_core::bc_protocol::connection::udpconn] Udp write poll aborted

[QuantumEntangledAndy]

Your likely reaching the camera limit. Consider the bitrate of your streams you are likely using most of the bandwidth available to your network. This is true even when your not connected since neolink constantly pulls video.

I'm working on some things in my fork to help with this, such as improved decoding and pausing streams not being used, but it's not ready yet.