@aude1248 we use a Foscam clone.
videostream.cgi is not acceptable with Android but it can be done as indicated by our "Foscam" KittyCam day and night shots below.
The shots above are actually accessed over the internet and it takes quite a bit of doing. I found it even more difficult to do the same across our LAN but eventually found a workaround.
The solutions we use to get the streams are quite complex and require additional free software and free online servers (not for the LAN streams though) including some Python code thrown in for good measures. One of the free servers also gave me a 24 hour ban as they didn't think KittyCam was suitable for their servers
After extensive testing I can now watch all the UK Freeview TV Channels here in Cyprus via the Blynk video widget and similar from other countries around the world. Broadcasting rights is a bit of a grey area so I'll not say too much on this topic.
The easiest fix for most users is to pick up a camera that works with Android spec at https://developer.android.com/guide/appendix/media-formats.html