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How to create a video from images with FFmpeg?
...ideo filter instead of -r for the output framerate
ffmpeg -r 1/5 -i img%03d.png -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4
Alternatively the format video filter can be added to the filter chain to replace -pix_fmt yuv420p like "fps=25,format=yuv420p". The advantage of this method is tha...
pandas: multiple conditions while indexing data frame - unexpected behavior
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3 Answers
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What is the fastest way to check if a class has a function defined?
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213
Yes, use getattr() to get the attribute, and callable() to verify it is a method:
invert_op = g...
Uninstall all installed gems, in OSX?
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13 Answers
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URL query parameters to dict python
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193
Use the urllib.parse library:
>>> from urllib import parse
>>> url = "http://...
Hide options in a select list using jQuery
...or what it's worth, the second form (with the @) doesn't exist in jQuery 1.3. The first isn't working because you're apparently expecting variable interpolation. Try this:
$("#edit-field-service-sub-cat-value option[value=" + title + "]").hide();
Note that this will probably break in various hi...
JavaScript OOP in NodeJS: how?
...n other file:
var Animal = require("./animal.js");
var john = new Animal(3);
If you want a "sub class" then inside mouse.js:
var _super = require("./animal.js").prototype,
method = Mouse.prototype = Object.create( _super );
method.constructor = Mouse;
function Mouse() {
_super.constru...
How do I resize an image using PIL and maintain its aspect ratio?
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edited Aug 11 '13 at 18:46
Jonathan Root
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How to change line width in IntelliJ (from 120 character)
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331
IntelliJ IDEA 2018
File > Settings... > Editor > Code Style > Hard wrap at
Int...