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How to create a video from images with FFmpeg?
... -r 30 -pix_fmt yuv420p out.mp4
Here are two demos on YouTube:
https://www.youtube.com/watch?v=grV64VE1U6c
https://www.youtube.com/watch?v=_6D05gCWh_I
Be a hippie and use the Theora patent-unencumbered video format:
ffmpeg -framerate 1 -pattern_type glob -i '*.png' -i audio.ogg \
-c:a copy ...
Add unique constraint to combination of two columns
...ert the row and returning an exception (exceptions are expensive).
http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling
http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/
If you want to prevent exce...
How to copy a file from one directory to another using PHP?
...opy all files from one folder to another using PHP
<?php
$src = "/home/www/example.com/source/folders/123456"; // source folder or file
$dest = "/home/www/example.com/test/123456"; // destination folder or file
shell_exec("cp -r $src $dest");
echo "<H2>Copy files completed!<...
nano error: Error opening terminal: xterm-256color
...Red Hat this worked for me:
export TERM=xterm
further info here: http://www.cloudfarm.it/fix-error-opening-terminal-xterm-256color-unknown-terminal-type/
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How to get elements with multiple classes
...'class2'>
:
:
For entire information about selectors:
https://www.w3schools.com/jquery/jquery_ref_selectors.asp
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How to make a element expand or contract to its parent container?
...id="containerId">
<svg
id="svgId"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns="http://www.w3.org/2000/svg"
version="1.1"
x="0"
y="0"
width="100%"
height="100%"
viewBox="0 0 800 600"
preserveAspectRatio="none">
<path d="m0 0v600h800...
Check whether a path is valid
...ri.IsWellFormedUriString():
The string is not correctly escaped.
http://www.example.com/path???/file name
The string is an absolute Uri that represents an implicit file Uri.
c:\\directory\filename
The string is an absolute URI that is missing a slash before the path.
file://c:/directory/filen...
How to master AngularJS? [closed]
...
To pluck out the best parts (in recommended order of learning):
http://www.egghead.io/ - Series of short, to the point AngularJS videos
AngularJS Cheatsheet - regularly updated cheatsheet [latest update 13th February, 2013]
On nested scopes - Points out possible problems when using scope
inherit...
How to export all collections in MongoDB?
...ath to save
eg: mongodump --db mydb --out c:\TEMP\op.json
Visit https://www.youtube.com/watch?v=hOCp3Jv6yKo for more details.
For Ubuntu:
Login to your terminal where Mongo DB is installed and make sure you are able to connect to your Mongo DB.
Now open a new terminal and execute the belo...
What's the best Django search app? [closed]
...oogle.com/p/djapian/
http://code.google.com/p/django-search-lucene/
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
To me, most look quite complicated and, frankly, a little daunting to implement.
I'd be interested to learn what you think of these.
...