ffmpeg0 -i /dev/video0 => operation not permitted

[Nicola Mingotti]

Hi,

I am connecting webcam to a BeagleBone Black [FreeBSD-11.1] and i would like to stream it over the network.
The webcam works and it is all fine, the issue is with ffmpeg.

I compiled ffmpeg and ffmpeg0 from ports since in my architecture there are not
packages for them.

As far as i understood ffmpeg0 is the realease of the program still providing ffserver, which
is what i need.

Whe i run

ffmpeg0 -r 35 -s 320x240 -i /dev/video0 http://localhost:8090/feed1.ffm

I get

/dev/video0: Operation not permitted

I am runnign all as root.
I tried to put root in group webcamd but now way, i always get the same error.

Do you have any suggestion ?

 

[Phishfry]

Does the device node you are trying to use actually show up in /dev ?

 

[Nicola Mingotti]

Does the device node you are trying to use actually show up in /dev ?

yes, the file is there, its user and group are set by default to "webcamd".

 

[Nicola Mingotti]

Hello Phishfry,
yes pwcview is working, to tell you more, also the following command runs:

ffmpeg -r 35 -s 320x240 -i /dev/video0 output.avi

The problem is, as far as i was able to understand, ffmpeg is not anymore connected to ffserve, for this reason i must use ffmpeg0.


But then, this commandfails

ffmpeg0 -r 35 -s 320x240 -i /dev/video0 output.avi

With output

/dev/video0: Operation not permitted

 

[Nicola Mingotti]

@Phisfry, can you stream a webcam from the BBB ?
If you can, could you tell me what software you use ?
I can do it from my desktop FreeBSD (amd64) but i find real issues here in the ARM.