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mpromonet / v4l2rtspserver

RTSP Server for V4L2 device capture supporting HEVC/H264/JPEG/VP8/VP9
The Unlicense
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No valid mulitcast address with -M #290

Closed wvdakker closed 1 year ago

wvdakker commented 1 year ago

Describe the bug Starting with the option -M should give a default multicast address. However, it comes back with 255.255.255.255 as an multicast address.

To Reproduce v4l2rtspserver -M /dev/video0rt v4l2rtspserver -M /dev/video0 outputs with [NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:138 RTP address 255.255.255.255:20000

Expected behavior I would expect a default multicast. It would be nice if it generate a random IP address where nibble 2,3 and 4 are random chosen.

Desktop (please complete the following information): Raspberry Pi

Additional context I also cannot see the multicast group in the IGMP router. Changing to -M239.0.0.10 it works ok again.

mpromonet commented 1 year ago

Hi @wvdakker

This is becaus /dev/video0 is got for multicast address. Using -m without argument works as you expect. I will modify the code to have similar behaviour, it will slightly change the behaviour of -M option, space will no more be accepted between option and value.

Best Regards, Michel.

wvdakker commented 1 year ago

@mpromonet I can confirm it works in 0.3.7