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How to record webcam and audio using webRTC and a server-based Peer connection

...ly have a look at Kurento. It provides a WebRTC server infrastructure that allows you to record from a WebRTC feed and much more. You can also find some examples for the application you are planning here. It is really easy to add recording capabilities to that demo, and store the media file in a URI...
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Debugging Scala code with simple-build-tool (sbt) and IntelliJ

... running the remote JVM -- something like -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 Launch sbt with these arguments and then execute jetty-run. Finally, launch your remote debug configuration in IntelliJ. This thread might be useful. ...
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How to handle multiple heterogeneous inputs with Logstash?

...gist.github.com/fairchild/3030472 Per documentation: Add a 'type' field to all events handled by this input. Types are used mainly for filter activation. The type is stored as part of the event itself, so you can also use the type to search for it in the web interface. – Tony...
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CSS transition shorthand with multiple properties?

...n: height 0.3s ease-out, opacity 0.3s ease 0.5s; Or just transition them all: -webkit-transition: all 0.3s ease-out; -moz-transition: all 0.3s ease-out; -o-transition: all 0.3s ease-out; transition: all 0.3s ease-out; Here is a straightforward example. Here is another one with the delay propert...
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Writing string to a file on a new line every time

... You can use: file.write(your_string + '\n') share | improve this answer | follow | ...
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PHP: How to handle

...s a string. (in this example, the casting is superfluous, as echo automatically does it anyway) $content = simplexml_load_string( '<content><![CDATA[Hello, world!]]></content>' ); echo (string) $content; // or with parent element: $foo = simplexml_load_string( '<foo&g...
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Moving average or running mean

... UPD: more efficient solutions have been proposed by Alleo and jasaarim. You can use np.convolve for that: np.convolve(x, np.ones((N,))/N, mode='valid') Explanation The running mean is a case of the mathematical operation of convolution. For the running mean, you slide...
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What's the difference between RANK() and DENSE_RANK() functions in oracle?

... with q as ( select 10 deptno, 'rrr' empname, 10000.00 sal from dual union all select 11, 'nnn', 20000.00 from dual union all select 11, 'mmm', 5000.00 from dual union all select 12, 'kkk', 30000 from dual union all select 10, 'fff', 40000 from dual union all select 10, 'ddd', 40000 from dual union ...
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What's the recommended way to connect to MySQL from Go?

... on go-wiki. Import when using MyMySQL : import ( "database/sql" _ "github.com/ziutek/mymysql/godrv" ) Import when using Go-MySQL-Driver : import ( "database/sql" _ "github.com/go-sql-driver/mysql" ) Connecting and closing using MyMySQL : con, err := sql.Open("mymysql", datab...
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What is Hindley-Milner?

...er system is that each well-typed term has a unique "best" type, which is called the principal type. The principal type of the list-length function is "for any a, function from list of a to integer". Here a is a so-called "type parameter," which is explicit in lambda calculus but implicit in most ...