e000

##########################################################
# How to NEVER use Lambdas. An inneficient and yet educa-#
# tonal guide to the proper misuse of the lambda constru-#
# ct in Python 2.x.     [DO NOT USE ANY OF THIS EVER]    #
#                                   by: e000 (13/6/11)   #                 
##########################################################

## Part 1. Basic LAMBDA Introduction ##
# Well, it's worth diving straight into what lambdas are.
# Lambdas are pretty much anonymous "one line" functions

Fitzsimmons

This guide will get you started using Spark on Heroku/Cedar. Spark is basically a clone of Sinatra for Java. 'Nuff said.

Create your app

Create a single Java main class in src/main/java/HelloWorld.java:

import static spark.Spark.*;
import spark.*;

Daiz

Don't Buy the Snake Oil of Beamr Video

You might have heard of Beamr Video, and their impressive claims about reducing video bitrates by "up to 4x, without losing quality". Sounds too good to be true? Well, as a matter of fact, it is.

The Example Videos

The four example videos that Beamr has on their site use very high bitrates - 40-50 Mbps for 1080p video. These are the kind of bitrates you find on Blu-ray discs, whereas with something like Netflix's "SuperHD" you'd only get around ~5.6 Mbps (5800 kbps) 1080p video, and with 720p Netflix video the bitrate is only around ~3.5 Mbps (3600 kbps). If you have watched online streams like these, you'll probably know that they look quite decent. Now, if you look at the Beamr Video examples, you'll notice that even for their "reduced" clips, the bitrates are still around 9 Mbps minimum, and average as high as ~30 Mbps.

At this point, you can probably see the trick that Beamr is trying to pull

tbnorth

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