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How to create a video from images with FFmpeg?
...-allowed-video-format/1472572#1472572
Full realistic slideshow case study setup step by step
There's a bit more to creating slideshows than running a single ffmpeg command, so here goes a more interesting detailed example inspired by this timeline.
Get the input media:
mkdir -p orig
cd orig
wget...
How do I specify a single test in a file with nosetests?
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You must specify it like so: nosetests <file>:<Test_Case>.<test_method>, or
nosetests test_web.py:TestWeb.test_checkout
See the docs
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Why use bzero over memset?
...nt and server) the professor instructed us to only use bzero and not memset to initialize them. He never explained why, and I'm curious if there is a valid reason for this?
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How to convert a string to lower case in Bash?
... nocasematch is not implemented)) even with using shopt -u nocasematch;. Unsetting that nocasematch causes [[ "fooBaR" == "FOObar" ]] to match OK BUT inside case weirdly [b-z] are incorrectly matched by [A-Z]. Bash is confused by the double-negative ("unsetting nocasematch")! :-)
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Dynamic variable names in Bash
...parameter with a numeric value (which defaults to 0 if the parameter isn't set).
– chepner
Dec 2 '13 at 12:24
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Is there a difference between using a dict literal and a dict constructor?
...eys if your keys are strings. They could just as easily be tuples of frozensets of floats, although this might get a bit ugly.
– Wooble
Jul 7 '11 at 13:03
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How to do scanf for single char in C [duplicate]
In C:
I'm trying to get char from the user with scanf and when I run it the program don't wait for the user to type anything...
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Exploitable PHP functions
...ister_shutdown_function' => 0,
'register_tick_function' => 0,
'set_error_handler' => 0,
'set_exception_handler' => 0,
'session_set_save_handler' => array(0, 1, 2, 3, 4, 5),
'sqlite_create_aggregate' => array(2, 3),
'sqlite_create_function' => 2,
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In C++, what is a virtual base class?
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Virtual base classes, used in virtual inheritance, is a way of preventing multiple "instances" of a given class appearing in an inheritance hierarchy when using multiple inheritance.
Consider the following scenario:
class A { public: void Foo() {} };
class B : public A {};
class C : ...
Modulo operation with negative numbers
In a C program i was trying the below operations(Just to check the behavior )
12 Answers
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