The VideoLAN Forums

Posted: **27 Jun 2019 10:41**

Hello,

I would like to stream audio only from a stream produced by an Interlogix (Hikvision) IP camera.

With

cvlc -vv rtsp://10.168.0.201:64001/Streaming/Channels/1 :sout-mux-caching=1000000 --vout none --sout "#transcode{acodec=ogg,ab=128,aenc=ffmpeg:http{mux=ogg,dst=:8080/}"

I get

<log moved to pastebin>https://pastebin.com/CYKfFue8</pastebin>

where the operative result is that it

could not create the chain

and

cannot start stream output instance, aborting

.

Where is this going wrong?

Posted: **27 Jun 2019 10:52**

To help you, we need messages, to completely understand what your problems is.

From windows command line or linux or macos terminal, launch vlc with options -vv and --logfile=file

Windows example: vlc.exe -vv --logfile=c:\vlclog.txt
Linux example: vlc -vv --logfile=vlclog.txt, or vlc -vv 2>&1 > logfile.txt

Then paste the full resulting log here between [code]and[/code] (or use Pastebin.com if it's too long)

Also don't forget to name your Operating System and provide the VLC media player version.

Posted: **27 Jun 2019 18:20**

Thanks for the reply. The messages are at the pastebin address quoted in the original message. They were too large to paste inline into the original message.

The version is stated at the beginning of the messages. The OS version is buried somewhere in the messages, so for clarity's sake, it is Fedora 30 64-bit.

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Stream only audio from (Hikvision) IP camera

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