Salpy geranyl

#Youtube v3 api, how to pull a video in from a user's playlist using jQuery

##Step 1: Setup your API keys Follow Google's instructions for setting up API keys for the youtube api at https://developers.google.com/youtube/registering_an_application

##Step 2: Get your jQuery on

	var API_KEY = YOUR_API_KEY_HERE;
  // Get Uploads Playlist

What this is:

A custom liquid template block tag that allows you to use the responsive image system Picturefill in Jekyll markdown files.

At the moment this template only has the option of mobile and desktop sizes. I have it hardcoded so that mobile images show up when the screen size has a max-width of 480px. You can adjust this within the function def render(context) in the tag template and add in other options you may desire.

What you need:

Jekyll v2 http://jekyllrb.com/
Picturefill http://scottjehl.github.io/picturefill/
You MUST specify markdown: kramdown in your _config.yml even though it's supposed to be the default markdown processor. This fixed the problem of Jekyll trying to interpret the resulting html as markdown and really messing up the conditional IE9 tags. Edit: I had defined the markdown tag previously with the wrong processor and never noticed.

	-c:v libx264 -color_primaries bt470bg -preset slow -profile:v high -level 3.0 -pix_fmt yuv420p -vf "scale=trunc(iw/2)2:trunc(ih/2)2" -c:a libfdk_aac -b:a 128k "$newpath.mp4"

	____________________________________________________

	as part of the following:

	#Compile ffmpeg into /usr/local/bin/ffmpeg; compilation required to include libfdk-aac for mp4 audio
	#converts from mp4 to other web formats; can likely comment out mp4 encoding if existing file is already a good size
	#Using: ffmpeg version N-70742-gd79f7bf-tessus Copyright (c) 2000-2015 the FFmpeg developers built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn) configuration: --prefix=/usr/local --as=yasm --extra-version=tessus --disable-shared --enable-static --disable-ffplay --enable-gpl --enable-version3 --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-pthreads --enable-postproc --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libxvid --enable-libspeex --enable-bz

	For an uploader mounted on a model

	Model eg:

	class Post < ActiveRecord::Base
	attr_accessible :title, :body, :published, :image, :tags, :author, :description, :image_cache, :remove_image, :tag_ids, :tags_attributes
	has_many :post_tags
	has_many :tags, through: :post_tags
	mount_uploader :image, AssetUploader
	end

	rails generate migration DropSomeTable (where some is your table name)
	It will generate a timestamped migration. They key is to place the drop table command in the up section

	class DropSomeTable < ActiveRecord::Migration
	def up
	drop_table :some
	end

	def down
	raise ActiveRecord::IrreversibleMigration <--optional

	var $curVideo = $('#cur-video');
	var curVidWidth = parseInt($curVideo.attr('data-width'),10);
	var curVidHeight = parseInt($curVideo.attr('data-height'),10);


	var aspect = curVidWidth / curVidHeight;
	camera = new THREE.PerspectiveCamera(45, aspect, 0.1, 10000);

	var vFOV = camera.fov * Math.PI / 180;
	var hFOV = 2 * Math.atan( Math.tan( vFOV / 2 ) * aspect );

	Handlebars.registerHelper('isMobile', function(conditional, options) {
	if(conditional)
	return options.fn(this)

	return options.inverse(this);
	});


	Example:
	Handlebars.registerHelper('isMobile', function(conditional, options) {

	time=`ffprobe -i 510e_fingerstyle.mp4 -show_frames 2>&1 \| grep -c media_type=video` \
	filters=(-filter:v "fade=in:0:50,fade=out:$(($time - 50)):50") \
	ffmpeg -i 510e_fingerstyle.mp4 "${filters[@]}" -c:v libx264 -crf 22 -preset veryfast -c:a copy output.mp4