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Rotating videos with FFmpeg

...ine). Note that this will re-encode the audio and video parts. You can usually copy the audio without touching it, by using -c:a copy. To change the video quality, set the bitrate (for example with -b:v 1M) or have a look at the H.264 encoding guide if you want VBR options. A solution is also to u...
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Why is the shovel operator (

...ut who has to clean the glass and more about the number of glasses used at all. You could imagine that certain applications are pushing the limits of memory on their machines and that those machines can only clean a certain number of glasses at a time. – Charlie L ...
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php execute a background process

...er-side script in whatever language (php/bash/perl/etc) is handy and then call it from the process control functions in your php script. The function probably detects if standard io is used as the output stream and if it is then that will set the return value..if not then it ends proc_close( proc...
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How to check whether a string is Base64 encoded or not

... for PHP5 //where $json is some data that can be base64 encoded $json=some_data; //this will check whether data is base64 encoded or not if (base64_decode($json, true) == true) { echo "base64 encoded"; } else { echo "not base64 encoded"; } Use this for PHP7 //$strin...
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403 Forbidden vs 401 Unauthorized HTTP responses

...telling you, “you aren’t authenticated–either not authenticated at all or authenticated incorrectly–but please reauthenticate and try again.” To help you out, it will always include a WWW-Authenticate header that describes how to authenticate. This is a response generally retu...
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Check if a string contains a string in C++

... Actually, you can try to use boost library,I think std::string doesn't supply enough method to do all the common string operation.In boost,you can just use the boost::algorithm::contains: #include <string> #include <boo...
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Removing first x characters from string?

... I guess it's metaphorically "popped" but actually its just 2 different slices, no real popping – jamylak Feb 16 '18 at 2:51 ...
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'const int' vs. 'int const' as function parameters in C++ and C

...ation relative to the type consistent and easy to remember (it also anecdotally seems to make it easier to teach to beginners). share | improve this answer | follow ...
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How do I write a custom init for a UIView subclass in Swift?

... The init(frame:) version is the default initializer. You must call it only after initializing your instance variables. If this view is being reconstituted from a Nib then your custom initializer will not be called, and instead the init?(coder:) version will be called. Since Swift now req...
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How can I bring my application window to the front? [duplicate]

...mWindowState.Normal; It always brings the desired window to the front of all the others. share | improve this answer | follow | ...