ERR: invalid transport header: encoding/hex: odd length hex string

[eljefe80]

Which version are you using?

v0.16.1 from docker hub

Which operating system are you using?

OS

• [ x] Linux
• Windows
• macOS

Architecture

• [ x] amd64
• arm64
• arm7
• arm6

Describe the issue

I have a no-name ip camera that does not seem to be working with rtsp-simple-server. The error is as stated in the title:

ERR: invalid transport header: encoding/hex: odd length hex string

I have attached a tcpdump capture of the interchange between rtsp-simple server and this ip camera

Describe how to replicate the issue

1. start the server

Did you attach a network dump?

yes
rtsp-simple-server-failure.txt
rtsp-simple-server-logs.txt

[aler9]

Hello, thanks for reporting this issue and providing the logs, your camera is sending these kinds of (invalid) hex values:

ssrc=4317f

I can add support for your camera, but i need to understand if this value corresponds to 4317f0 or to 04317f; in order to do this, i need a dump of the RTP packets between the camera and the server, that can be generated in this way:

1. Download wireshark (https://www.wireshark.org/)
2. Start capturing on the interface used for exchanging RTSP (the one of your network card)
3. Start reading the camera stream with VLC
4. Stop capturing after some seconds, save the result in .pcap format
5. Attach

[eljefe80]

Wireshark capture file attached.

Thanks!

vlc-ipcam-dump.txt

[aler9]

Thanks, it seems that

4317f

is

04317f

This is supported in main and will be added to the next release.

[eljefe80]

Hi, this seems to have moved us forward, but I'm getting a new error:

ERR: invalid transport header: invalid SSRC

Should I open a new ticket for this?

Thanks!

[aler9]

I did another change, please try again with the latest main.

[koshkamau]

Hi!
I have a camera from "VOLDRELI 0322 Store" on Aliexpress.
I tried the latest prebiult version of this rtsp-server and got an error message "[path proxied1] [rtsp source] ERR: invalid transport header: encoding/hex: odd length hex string".
Then I tried as suggested in the last message and everything works fine for now.

I just found out about this rtsp-simple-server but it looks very promising.
Thank you :)

[aler9]

added to v0.16.2

[github-actions]

This issue is being locked automatically because it has been closed for more than 6 months.
Please open a new issue in case you encounter a similar problem.