brianloveswords

gif-from-tweet

There are so many great GIFs out there and I want to have copies of them. Twitter makes that harder than it should be by converting them to MP4 and not providing access to the source material. To make it easier, I made a bash pipeline that takes a tweet URL and a filename, extracts the MP4 from that tweet and uses ffmpeg to convert back to GIF.

Dependencies

• ffmpeg
  • macOS: brew install ffmpeg
  • Ubuntu/Debian: apt install ffmpeg

askmike

// helpers
var _ = require('lodash');
var log = require('../core/log.js');

// configuration
var config = require('../core/util.js').getConfig();
// let's create our own method
var method = {};

// prepare everything our method needs

christiangenco

Download videos from egghead

1. Install the React Developer Tools Chrome Extension.

2. Go to the egghead website, i.e. Getting Started with Redux

3. Click View -> Developer -> Javascript Console, then the React tab, then the <NextUpLessonList ...> tag.

4. Click back to the Console tab, then run:

max-mapper

Video stabilization using VidStab and FFMPEG

Examples here use the default settings, see the VidStab readme on GitHub for more advanced instructions.

Here's an example video I made

Install ffmpeg with the vidstab plugin from homebrew

brew install ffmpeg --with-libvidstab

ddennedy

#!/bin/sh

startswith() { case $1 in $2*) true;; *) false;; esac; }

tmpfile=$(mktemp)
ffprobe -show_frames "$1" 2> /dev/null > "$tmpfile"

GOP=1
maxGOP=1
Bframes=0

ddennedy

See my DASH-IF presentation from October, 2014:
https://s3.amazonaws.com/misc.meltymedia/dash-if-reveal/index.html#/

1. encode multiple bitrates with keyframe alignment:
   ffmpeg -i ~/Movies/5D2_Portrait.MOV -s 1280x720 -c:v libx264 -b:v 1450k -bf 2 \
     -g 90 -sc_threshold 0 -c:a aac -strict experimental -b:a 96k -ar 32000 out.mp4

   My input was 30 fps = 3000 ms. If it were 29.97, then a GOP size of 90 frames will yield a base segment
   size of 3003 milliseconds. You can make the segment size some multiple of this, e.g.: 6006, 9009, 12012.

tpitale

1. Go to Tools > New Plugin
2. Paste timestamp.py contents and save in User as timestamp.py
3. Open Preferences > Key Bindings - User (or Default, your call)
4. Paste keybindings.json, or add a line to your keybindings
5. Customize the keyboard shortcut to your liking and save

dericed

ffmpeg -f lavfi -i color=color=black:s=1920x1080 -vf "drawtext=fontfile=/Library/Fonts/Arial.ttf:fontsize=80:fontcolor=white:x=(w-text_w)/2:y=(h-text_h-line_h)/2:text='Lossless codecs vs corruption',drawtext=fontfile=/Library/Fonts/Arial.ttf:fontsize=30:fontcolor=white:x=(w-text_w)/2:y=(h-text_h-line_h)/2+80:text='by Dave Rice',fade=in:0:20,fade=out:55:20" -c:v rawvideo -pix_fmt uyvy422 -t 3 -vtag 2vuy intro_title.mov
ffmpeg -f lavfi -i color=color=black:s=1920x1080 -vf "drawtext=fontfile=/Library/Fonts/Arial.ttf:fontsize=100:fontcolor=white:x=(w-text_w)/2:y=(h-text_h-line_h)/2:text='JPEG-LS',fade=in:0:20,fade=out:55:20" -c:v rawvideo -pix_fmt uyvy422 -t 3 -vtag 2vuy jpegls_title.mov
ffmpeg -f lavfi -i mandelbrot=s=1920x1080 -c:v jpegls -bsf noise -t 10 jpegls.mov
ffmpeg -f lavfi -i color=color=black:s=1920x1080 -vf "drawtext=fontfile=/Library/Fonts/Arial.ttf:fontsize=100:fontcolor=white:x=(w-text_w)/2:y=(h-text_h-line_h)/2:text='Lossless JPEG',fade=in:0:20,fade=out:55:20" -c:v rawvideo -pix_fmt uyvy422 -t 3 

JamesMGreene

Initialize

gitflow	git
git flow init	git init
	git commit --allow-empty -m "Initial commit"
	git checkout -b develop master

Connect to the remote repository

klange

[Configuration]
FontName=DejaVu Sans Mono 10
MiscAlwaysShowTabs=FALSE
MiscBell=FALSE
MiscBordersDefault=FALSE
MiscCursorBlinks=FALSE
MiscCursorShape=TERMINAL_CURSOR_SHAPE_BLOCK
MiscDefaultGeometry=80x24
MiscInheritGeometry=FALSE
MiscMenubarDefault=FALSE