Stanley Chiang stanchiang

Note: This is an older post that I did back when I thought I might have time to be a blogger. Oh I was oh so wrong. However, it has proven useful for some folks on stackoverflow. Thus I'm keeping it alive here on Gist.

One of my past projects dealt heavily with an open source Apple technology called HTTP Live Streaming. It’s an HTTP based streaming protocol that at its most fundamental level provides a way to stream video and audio from just about any server with nothing but a few free software tools provided by Apple**. However, it has a few additional features that I think make it a really exciting tool. Yet, I haven’t seen HTTP Live Streaming used very much. This is probably mainly due to the combination of a lack of good/clear documentation, and Apple’s Live Streaming Developer Tools being command line based also make the barrier to entry higher than many developers want to deal with.

The hope is to share my understanding of how to use this technology to:

	% Based upon code by nicoptere: http://en.nicoptere.net/?p=315
	function outImage = equirectangularToStereographic(FILENAME,OUTSIZE,CAMDIST,WORLDROTATION)
	if nargin < 2
	OUTSIZE = [1080,1920];
	end
	if nargin < 3
	CAMDIST = 8;
	end
	if nargin < 4
	WORLDROTATION = 0;

	extension CMDeviceMotion {

	func gaze(atOrientation orientation: UIInterfaceOrientation) -> SCNVector4 {

	let attitude = self.attitude.quaternion
	let aq = GLKQuaternionMake(Float(attitude.x), Float(attitude.y), Float(attitude.z), Float(attitude.w))

	let final: SCNVector4

	switch UIApplication.sharedApplication().statusBarOrientation {

	# import the necessary packages
	from __future__ import print_function
	from imutils.video import VideoStream
	from imutils.object_detection import non_max_suppression
	from imutils import paths
	import numpy as np
	import argparse
	import imutils
	import cv2