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FFmpeg: How to split video efficiently?

...ers that question, so I did as @AlcubierreDrive suggested… echo "Two commands" time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 -sn test1.mkv time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:30:00 -t 01:00:00 -sn test2.mkv echo "One comman...
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How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?

... Using the standard CustomCreationConverter, I was struggling to work how to generate the correct type (Person or Employee), because in order to determine this you need to analyse the JSON and there is no built in way to do this using the...
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C# : 'is' keyword and checking for Not

...ublic static bool IsA<T>(this object obj) { return obj is T; } and then use it to: if (!child.IsA<IContainer>()) And you could follow on your theme: public static bool IsNotAFreaking<T>(this object obj) { return !(obj is T); } if (child.IsNotAFreaking<IContainer&g...
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How does Task become an int?

... Does an implicit conversion occur between Task<> and int? Nope. This is just part of how async/await works. Any method declared as async has to have a return type of: void (avoid if possible) Task (no result beyond notification of completion/failure) Task<T> (for...
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Making a triangle shape using xml definitions?

... In this post I describe how to do it. And here is the XML defining triangle: <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <rotate android:fromD...
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Delete commits from a branch in Git

...e sure to stash any local changes you want to keep before running this command. Assuming you are sitting on that commit, then this command will wack it... git reset --hard HEAD~1 The HEAD~1 means the commit before head. Or, you could look at the output of git log, find the commit id of the comm...
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How do I restart nginx only after the configuration test was successful on Ubuntu?

When I restart the nginx service on a command line on an Ubuntu server, the service crashes when a nginx configuration file has errors. On a multi-site server this puts down all the sites, even the ones without configuration errors. ...
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Algorithm to detect overlapping periods [duplicate]

...etect if two time periods are overlapping. Every period has a start date and an end date. I need to detect if my first time period (A) is overlapping with another one(B/C). In my case, if the start of B is equal to the end of A, they are not overlapping(the inverse too) I found the followi...
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What is the easiest way to duplicate an activerecord record?

... Does this still work in Rails 3.1.0.beta? When I do q = p.clone, and then p == q, I get true back. On the other hand, if I use q = p.dup, I get false back when comparing them. – Juno Woods Feb 8 '11 at 2:10 ...
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Best way to repeat a character in C#

... string.Concat(Enumerable.Repeat("ab", 2)); Returns "abab" And string.Concat(Enumerable.Repeat("a", 2)); Returns "aa" from... Is there a built-in function to repeat string or char in .net? share ...