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Dakota Chichester acketon

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  • Boston University - @bu-ist
  • Boston, MA
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@ctlcltd
ctlcltd / wordpress_low-quality-image-placeholders_lqip.md
Last active June 22, 2023 20:08
How to easily generate low quality image placeholders (lqip) in WordPress

How to easily generate low quality image placeholders (lqip) in WordPress

I have made this function using the WP_Image_Editor class and I have filtered through the "wp_generate_attachment_metadata" hook. You can modify the "theme" namespace into function names with your theme name or in anyway you like.

Applying the filter directly to wp_generate_attachment_metadata the image placeholders are auto added into WordPress metadata, so when your add/modify/delete an image (or regenerate it via a plugin), it accomplishes to modify also to the image placeholders.

The use of the native theme support can prevent the generation of lqip or target specific image sizes to generate.

It contains an hook filter lqip_quality to modify the quality without have to modify the function.

@goncalossilva
goncalossilva / gifenc.sh
Last active December 12, 2023 22:31
Encode mp4, webm and gif using ffmpeg (2.6 or above). Audio is discarded on all of these!
#!/bin/sh
# sh gifenc.sh input.mp4 output.gif
# Optionally accepts width / height (one or both).
palette="/tmp/palette.png"
filters="fps=15"
if [ -n "$3" ]; then
if [ -n "$4" ]; then
filters="$filters,scale=$3:$4"
@tinabeans
tinabeans / template.html
Last active May 10, 2025 11:01
A super-barebones single-column responsive email template, assuming a max-width of 540px. Read about it on the Fog Creek blog.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Single-Column Responsive Email Template</title>
<style>
@media only screen and (min-device-width: 541px) {
.content {
@dergachev
dergachev / GIF-Screencast-OSX.md
Last active August 9, 2025 03:16
OS X Screencast to animated GIF

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Screencapture GIF

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

@pdewouters
pdewouters / gist:4503081
Created January 10, 2013 15:51
Enable greyscaling with WPThumb
add_filter( 'wpthumb_image_post', 'pdw_bij_add_greyscale_filter', 10, 2 );
function pdw_bij_add_greyscale_filter( WP_Image_Editor $editor, $args ) {
//var_dump( get_class( $editor ) );
if ( ! is_a( $editor, 'WP_Image_Editor_GD' ) || empty( $args['greyscale'] ) )
return $editor;
imagefilter( $editor->get_image(), IMG_FILTER_GRAYSCALE );
return $editor;
@rnagle
rnagle / otf_get_attachment_image_src.php
Created April 12, 2012 12:46
WordPress: Generate thumbnails on-the-fly
<?php
/*
* Check for thumb of $size and generate it if it doesn't exist.
*
* @param int $post_id Post ID for which you want to retrieve thumbnail
* @param string $size Name of thumbnail size to check for; same as
* the slug used to add custom thumb sizes with add_image_size().
* @return array An array containing: array( 0 => url, 1 => width, 2 => height )
*