/2011/11/17/notes-on-mjpg_streamer/
{"item":{"status":"visible","url":"\/2011\/11\/17\/notes-on-mjpg_streamer\/","trash":"","name":"notes-on-mjpg_streamer","parent":"","title":"Notes on mjpg_streamer","date":"2011-11-17 10:46:12","filepath":"posts\/2000774_notes-on-mjpg_streamer.xml.json","type":"post","content":"<h3><span style=\"font-size: 13px;\">Initial config:<\/span><\/h3>\n<p style=\"padding-left: 30px;\">* Ubuntu 10.10 Desktop on a netbook<\/p>\n\n<h4>Step 0: Is your camera working?<\/h4>\n<blockquote>$ ls -i \/dev | grep videoYou should see your camera listed (e.g. video0)<\/blockquote>\n<h4>Step 1: Install the mjpg_streamer Debian package<\/h4>\n<p style=\"padding-left: 30px;\">a)\u00a0Download with your browser: <a href=\"http:\/\/sourceforge.net\/projects\/mjpg-streamer\/files\/\" target=\"_blank\">http:\/\/sourceforge.net\/projects\/mjpg-streamer\/files\/<\/a><\/p>\n<p style=\"padding-left: 30px;\">b) Install the package (just \"open\" the file with the downloader) in your package manager.<\/p>\n<p style=\"padding-left: 30px;\">c) Install more packages:<\/p>\n\n<blockquote>$ sudo apt-get install libjpeg-progs<\/blockquote>\n<h4><!--more-->Step 2: Run it<\/h4>\n<blockquote>$ sudo mjpg_streamer -i \"input_uvc.so -d \/dev\/video0 -y\" -o \"output_http.so -p 8090 -w \/usr\/www\"<\/blockquote>\n<h4>Step 3: View it<\/h4>\n<p style=\"padding-left: 30px;\">a) Open a browser and go to: http:\/\/localhost:8090<\/p>\n<p style=\"padding-left: 30px;\">b) You should see a welcome and info page. \u00a0Click around to see your stream.<\/p>\n\n<h2>Surprises and info:<\/h2>\n<p style=\"padding-left: 30px;\"><em><strong>* Where is mjpg_streamer installed? <\/strong><\/em><\/p>\n<p style=\"padding-left: 30px;\"><strong>Answer: <\/strong><\/p>\n\n<blockquote>\n<p style=\"padding-left: 30px;\">$ which mjpg_streamer<\/p>\n<p style=\"padding-left: 30px;\">\/usr\/bin\/mgjpg_streamer<\/p>\n<\/blockquote>\n<p style=\"padding-left: 30px;\"><em><strong>* Where is output_http.so installed? <\/strong><\/em><\/p>\n<p style=\"padding-left: 30px;\"><strong>Answer:<\/strong><\/p>\n\n<blockquote>\n<p style=\"padding-left: 30px;\">\/usr\/lib<\/p>\n<\/blockquote>\n<p style=\"padding-left: 30px;\"><em><strong>* Where are the web files? \u00a0Did you get one of these messages? <\/strong><\/em><\/p>\n\n<blockquote>\n<p style=\"padding-left: 30px;\">\"400 Not Found!: No file extension found\"<\/p>\n<p style=\"padding-left: 30px;\">\"404 Not Found!: Could not open file\"<\/p>\n<\/blockquote>\n<p style=\"padding-left: 30px;\"><strong>Answer: <\/strong><\/p>\n<p style=\"padding-left: 60px;\">You need to specify the location of mjpg_streamer's www files. \u00a0They are installed in: \/usr\/www<\/p>\n<p style=\"padding-left: 30px;\"><em><strong>* Why am I getting the following error? <\/strong><\/em><\/p>\n\n<blockquote>\n<p style=\"padding-left: 30px;\">\"Unable to set format: Invalid argument<\/p>\n<p style=\"padding-left: 30px;\">Init v4L2 failed !! exit fatal<\/p>\n<p style=\"padding-left: 30px;\">i: init_VideoIn failed\"<\/p>\n<\/blockquote>\n<p style=\"padding-left: 30px;\"><strong>Answer: <\/strong><\/p>\n<p style=\"padding-left: 60px;\">Your camera <a href=\"http:\/\/blog.metamatt.com\/post\/1501411580\/mjpg-streamer-from-openwrt-with-cheap-webcams\" target=\"_blank\">only supports YUV<\/a> and doesn't support MJPG in hardware. \u00a0Tell mjpg_streamer to do the conversion for you with the \"-y\" argument.<\/p>"}}
