#HOW TO INSTALL MPLAYER RASPBERRY PI HOW TO#So if you can get control of what decides how to draw pixels in Windows we can draw our grid on the client side in Windows rather than on the encoder side on the Pi. Something decides what pixels to display, and this is true for every window, including mplayer. Logic dictates there should be another way And then after all that, my fear was that it would slow down the video to the point where we would lose the real-time aspect! So the barriers were many, the risk was great, the reward not that great. And then I would have needed to figure out openCV, which in turn might require programming in C++, which I have only the most basic skills. Then there was cmake to master – I have no idea never having used it before. He provided one example of a hacked source file, but for raspistill, and I needed raspivid which is slightly different. And I did get it to compile, but it’s a lot of packages to bring down, and then I still needed to add in the openCV stuff. #HOW TO INSTALL MPLAYER RASPBERRY PI CODE#I began to bring down the source code for raspivid and raspistill, as outlined in this series of blog posts. Well, let’s talk about why I didn’t go the openCV route. Here I demonstrate how I have done it, and what compromises I had to make along the way. In the conclusion I mentioned that it would be nice to superimpose (overlay) a grid over that image, and speculated that openCV might be just the tool to do it. Hi, andrew again, here is what happens when i try and start the ~]# ffserver -f /root/nf & ffmpeg -v 2 -r 5 -s 640x480 -f video4linux2 -i /dev/video0 372įfserver version 0.11.In my previous post I outlined how to get real-time video from your Raspberry Pi with its camera, and to make it somewhat robust. If you don't see a stream try again another time! My Raspberry Pi webcam stream is sometimes available here: #HOW TO INSTALL MPLAYER RASPBERRY PI UPDATE#*** UPDATE NOTE: I am now using Motion instead of ffserver see this new post: Battery powered, Wireless, Motion detecting Raspberry Pi *** The updater ensures that if your external address changes the Dynamic DNS provider is given the new one. In another post I'll show how to set up Dynamic DNS with an address updater so you can reach your Pi on the net through a name rather than address. Your external address will change occasionally unless you have a fixed IP address. Your external address will probably be shown somewhere in your router web interface or you can find it by going to here: Now find your external ip address and you should be able to connect through that. If you just want to see this on the Internet temporarily simply open up port 8090 on your home router firewall settings. The other is an mjpeg stream which you can view from a web browser without requiring any plugins. One is an asf stream which you can connect to from players like Windows Media Player or VLC. Here's mine:įfserver -f /root/nf & ffmpeg -v 2 -r 5 -s 640x480 -f video4linux2 -i /dev/video0 You should now have two streams available from your Raspberry Pi. Update your packages and install mplayer and ffmpeg:Ĭreate an nf configuration file in /root. Unplug the keyboard and HDMI, reboot and then ssh to your Pi. So swap the default start.elf for the 224 version: Since this Pi is running headless we don't need so much RAM allocated to the GPU. (You may need to change your router settings to define a fixed IP address range) Edit /etc/rc.conf using nano:įollow the instructions to set up your fixed IP something like this:Īlso change nf to use your router for name resolution: From my Windows laptop I booted to a GParted Live CD to do this. (I use Win32DiskImager)Įxpand the main partition to fill the SD card. #HOW TO INSTALL MPLAYER RASPBERRY PI DOWNLOAD#Here's a walk-through of the steps I took to get a webcam stream on the Internet from my Raspberry Pi.Īrch Linux ARM - you can get the image file from the Raspberry Pi download page.
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