Our knowledgeable team of support techs have experience with solving errors of this nature. You don’t have to rack your brain over connectivity issues! Liquid Web customers enjoy 24/7 support for our VPS Managed products. raspivid -vf -hf -t 0 -fps 25 -b 500000 -o - ffmpeg -i -vcodec copy -an -r 25 -f flv rtmp://xxxxxx/live/smth But every time i try this, the raspberry pi loses ip address and i get this error: failed to resolve hostname xxxx: Name or service not known And then i have to restart the rpi to make the network work again. In our example, we’ve successfully ping’d Google! Step 4: T est the reachability of a host by using ping, curl, wget or any testing tool of your choice. Step 3: Enable and restart your network, using the commands associated with your server version. Save and quit the file using ESC and :wq. Next, we’ll set our DNS IP’s to use Google’s Public DNS ( 8.8.8.8 & 8.8.4.4). Vim /etc/sysconfig/network-scripts/ifcfg-eth0 Step 2: The method for permanent changes is to edit the /etc/sysconfig/network-scripts/ifcfg-eth0 file instead of nf file. The second nameserver is public resolver that wont be able to respond to reverse DNS queries for. Only the first of your nameserver entries is qualified to answer queries for your local domain and network. So, we’ll first stop and disable the Network Manager:īe sure to run these commands as the root user, or a privileged user using sudo before each command.Ĭhkconfig NetworkManager off service NetworkManager stop The root of your problem is your /etc/nf and how nmap parses that. The Network Manager controls this essential /etc/nf file to create permanent changes. Manually editing the nf file to configure name resolution will only do so temporarily. Step 1: Amongst many other configuration tasks, the nf file is used to resolve DNS requests. In this troubleshooting tutorial, we’ll show you some common solutions to connectivity issues. If the connection from your local machine, in this case, a CentOS server, is disconnected you’ll likely run into issues trying to access the world wide web. These commands connect to the Internet using gateways to communicate and provide information. For the sake of brevity, we look towards commonalities between these commands to solve the issue. There are many reasons why these commands can cause an error, including file corruption. Actually I tried the same command you use I get error: Wrong time base(0), so you may want to check your command line.įollowing the document /doku.php?id=linux-kernel:drivers:v4l_blackfin_camera I use the command:įfmpeg -v 0 -f video4linux -r 20 -s 320x240 -i /dev/video0 -an -qscale 2 -f avi foo And it works fine, I can caputure the video into a file succesfully.You may find the “can’t resolve hostname” or “temporary failure in name resolution” error when using retrieval command like wget, cURL, ping or nslookup. PYTHON FFMPEG FAILED TO RESOLVE HOSTNAME FULLIs above the full log you see during the test? From your command line I guess you might be trying to direct the raw video to /dev/null, did you see some log like" Press to stop encoding?". 04:08:28 Re: ffmpeg hangs on device open PYTHON FFMPEG FAILED TO RESOLVE HOSTNAME DRIVERI tried to compile in the video test driver instead to eliminate possible issues in the video SOC driver but it uses v4l2 and ffmpeg rejects it with the following error (of course the command line was changed to -f video4linux2):Ĭapabilities: 5000001 Note that Ctrl-C works (vs complete death). PYTHON FFMPEG FAILED TO RESOLVE HOSTNAME CODEI need to start modifying code for a project I'm working on but I hate to do that on a base which doesn't work to begin with. > ffmpeg -f video4linux -s 320x240 -i /dev/video0 -an -vcodec copy /dev/nullįFmpeg version git-bc8ef58, Copyright (c) 2000-2009 Fabrice Bellard, et al.Ĭonfiguration: -prefix=/usr -source-path=/home/gilles/bfsrc/uclinux dist/lib/ffmpeg/build/./ffmpeg-svn-20344 -target-os=linux -arch=bfi. If my command line is incorrect, I'll get errors like "Wrong time base" or the sort suggesting that it's doing the proper checks but with the following command line, it hangs as shown below: Still, ffmpeg hangs right after opening (or during opening) /dev/video0. I have obviously read these:ĭ/doku.php?id=linux-kernel:drivers:v4l_blackfin_cameraĭ/doku.php?id=uclinux-dist:ffmpeg At this point, I am trying to run ffmpeg on a vanilla, unmodified uClinux and toolchain 2010R1 on a BF527-EZLITE-V2 with the CMOS CAM extender and a VS6524. I was hoping we could try to address the issue here. There are a few threads similar but still nothing helpful.
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