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How to create a video from images with FFmpeg?

...pix_fmt yuv420p out.ogg Your images should of course be sorted alphabetically, typically as: 0001-first-thing.jpg 0002-second-thing.jpg 0003-and-third.jpg and so on. I would also first ensure that all images to be used have the same aspect ratio, possibly by cropping them with imagemagick or n...
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foreach vs someList.ForEach(){}

... The most common one is described in the comments to this question. Generally, if you are looking to remove multiple items from a list, you would want to separate the determination of which items to remove from the actual removal. It doesn't keep your code compact, but it guarantees that you do n...
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Multiple linear regression in Python

...as some other model evaluation criteria. If you want the stuff like in Akavall's answer, statsmodels has some more R-like diagnostics. – djs Mar 17 '16 at 18:56 ...
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Python unittest - opposite of assertRaises?

...the correct solution in fact. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise ...
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Programmatically Request Access to Contacts

...ss to the address book must be granted before it can be access programmatically. Here is what I ended up doing. #import <AddressBookUI/AddressBookUI.h> // Request authorization to Address Book ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, NULL); if (ABAddress...
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Do I need to disable NSLog before release Application?

... get debug messages. When you're ready to release a beta or final release, all those DLog lines automatically become empty and nothing gets emitted. This way there's no manual setting of variables or commenting of NSLogs required. Picking your build target takes care of it. ...
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How to import the class within the same directory or sub directory?

I have a directory that stores all the .py files. 13 Answers 13 ...
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How to iterate through two lists in parallel?

...hat advantage that only itertools.izip() had in Python 2 and thus it is usually the way to go. – Daniel S. Jun 14 '16 at 17:40 5 ...
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What is the meaning of erb?

... lame, they should remove the html. u don't see html.php – luckyguy73 Oct 22 '16 at 23:26 add a comment  |  ...
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How to make inline functions in C#

...=> x + y; void print(int x) { Console.WriteLine(x); } There are basically two different types for these: Func and Action. Funcs return values but Actions don't. The last type parameter of a Func is the return type; all the others are the parameter types. There are similar types with different...