Monday, 14 April 2014

Sony F55 Avid Media Composer 6.5.4 Workflow

Has anyone worked with the Sony F55 camera? I'm working on an Avid Media Composer 6.5.4 Workflow for it, using this cameras Slow-Mo features.

Our crews have filmed at 100fps, 150fps, 240fps etc. But the files themselves come in as 25fps .MXF files, which already play in Slow-Mo

We simply AMA link to these and transcode at 10:1 DNX for editing. This workflow is perfect, unless you want to know which files are what speed, so you can speed them back up to normal speed. We can't find a way of identifying which files are 100fps, 150fps etc.

Any clues?

Friday, 11 April 2014

The OpenSSL Heartbleed Bug explained, and what you, the User, needs to know.

To help explain The Heartblees Bug in OpenSSL:-

It is not a TLS/SSL encryption flaw. It's all in the TLS heartbeat extension; a 'handshake' between two systems including a missing bounds check... but this one didn't check the length parameter. This means a hacker can trick OpenSSL into allocating a 64KB buffer and take more information than was originally offered up. This space fills up with whatever was in your computers live memory at the time, or the live memory of any of these servers using OpenSSL, 64KB at a time.

This could have been your bank password, a document you just e-mailed someone, payment details, encryption keys (i.e. If you have your VPN) etc. However, there have been no documented instances of attacks exploiting the bug. The problem was found, patched, and then the information passed on so other OpenSSL users can patch their systems. The problem is that some tool tweeted about it and informed all our fellow hackers of the exploit before all servers could be patched. To make it worse, they've created tools to allow you to 'test' whether a site is still vulnerable. However, we can use these tests too.

At the end of the day, there's nothing the Users can do about it at this point. Even if you change all your passwords, it's not going to help if the exploit is still open, but, as I said, there's a chance here the vulnerability was never exploited.

The best you could do as a Systems Administrator for a webserver is to install the OpenSSL update, change your encryption certificates, clear your cookies and turn off your system, unplug it, take out the battery, for a couple of minutes, let the memory die out. As a User of websites, my advise would be to avoid as many varying websites as possible for now. Obviously, we don't know which websites are vulnerable but the patch is already available and has been implemented by all the major players, like Microsoft and Facebook, so don't worry about it.

Saturday, 5 January 2013

Kodu Game Lab

I set a challenge for ye!!

Yo gang,

I don't suppose many of you are too aware of what I actually do for a living but it recently involved conveting our quiz resources into something more 'user friendly'; something more enjoyable.

Some new Open Source software that lets kids create their own games for PCs and XBOX. They get to design the layout, like you would in Sims using objects provided but you create whole worlds, not just houses. Then they get to programme all the characters and objects to behave and react in particular ways.

It's called Kodu Game Lab! The characters are called Kodu's, it's totally free and comes with Tutorials!

These Tutorials are to help you get your head around it all, which start very simply by adding a character, adding an apple, then telling the character to eat the apple. Those who are generally quite IT literate will pick it up just fine.

My challange to you is to create an educational game with it!!

You can start now or you can read the rest of this Blog to take a look at the coding I use and problems I ran into.

Below is the coding I used to convert my class quizzes into a game, which should help you get started.

So, firstly, what I chose to do was use questions. This meant having Kodu bump the apple and instead of eating it, he gets a question. The first thing to recognise is that we want a different question per apple, so rather than programme Kodu to bring up the text, we're going to programme the apple to give us the question.

Secondly, I wanted the questions to be randomised, which you can't do if each question is programmed in to each stationary apple. So, instead of apples, lets use fish! The fish can swim around, and then the question Kodu is asked will be dependant on the fish he bumps in to.

Easy! Now we have a question being asked, so we can get on with answering the question.

Of course at this point we should test the game.

At this point, Kodu should be able to move and the fish should automatically move around freely and ask the question when bumped by Kodu.

FYI, I used questions with 4 optional answers, laid out as follows:-

So, I play the game, I bump into the fish and...

...I can't read the question!

This calls for a change in programming. When setting your question, make sure you use the Full screen button when programming your question.

Excellent. Now when I catch the fish, I get a question! And we can add as many fish as we want!

While you are developing your game, make sure you keep testing everything. You also can't Copy & Paste text into Kodu. You have to type out your questions. At this stage don't waste time programming each fish. Just copy and paste the same fish object and play with that one. Once the game is working, then go in and type in all your different questions.

At this point, if you've copy & pasted your fish, you'll realise you start getting asked a lot of questions without Kodu having to bump into the fish. This is because the fish have been programmed the ask a question as of when they are bumped, by anything. This needs to be changed to 'Bumped By Kodu'.

You'll also notice that as you try to come out of a question, the questions keep repeating itself. This is because Kodu and the fish are quite slippery. If you right click them, you can change their individual settings. Bring down Bounce and increase Friction.

It still won't be perfect.

What you can do is have the fish ask the question once but it has to be done on the second page (no, I don't know why)

Pages are great and should be used to programme the consequences to your answers.

Once the question has been asked, the Gamer will answer it. They're answer should turn the programming to a particular page (depending on the Keyboard button they press, it will take them to a particular page). The results of a wrong answer should have a particular consequence and hitting the correct key should have a particular consequence.

Now we've got fish who ask us questions. We can start programming the answers!

In the example above the Gamer is asked to press either A, B, C or D to answer the question. However, by default Kodu Game Lab uses 'A' to mean continue. As far as I'm aware, this can't be changed. Because of this, when 'A' is pressed, the Gamer will return to the game thinking they've got the question right and the answer is always 'A'. So, we don't want to use 'A'!

In effect, this will also be easier for the user as they won't have to search the keyboard to find letters A, B, C & D.

In this example, the answer is '1', so here's the programming I used to indicate the right answer

When the Gamer presses 1 (the right answer), the programming will turn to page 3, where they'll receive the consequence for getting it right.

If the Gamer gets it wrong (presses 2, 3, or 4) it will revert to page 4, where we have the consequences for getting it wrong.

In this example a correct answer gets you one point and a wrong answer will cause the fish to explode. This won't harm Kodu but eventually he's going to run out of fish and then he won't be able to get the points he needs to be able to win.

So, we've got swimming talking fish with consequences to our educational questions. Now we can talk about winning!!

With Kodu, a win can happen after a particular event i.e. gaining a certain number of points, but what if there's 30 questions (30 points available) and they get one wrong, they can't win if the win is set to 30. So, let's set it a bit lower. Say 25. Then, after getting 25 questions right, they win!...

But what if someone is capable of getting 30 out of 30 and want to play to the end?

Instead of a straight 'Win', having a 'finishing line' that only takes effect after a certain percentage (I think) is a better option. In this example, I've included a House for Kodu. If it's bumped by Kodu during the game it will inform Kodu he doesn't have enough points to win. Once Kodu gets 25 out of 35 points (70%), then when he touches the house, he'll win. This allows people to play past the 25 pass rate. And ta da! We have a game :)

Give it a go!! I'm sure you can make Worlds more exciting than mine. If you do pull it off, export the game and e-mail it in to:-

doothcrow@gmail.com

Download Kodu at:-

http://www.microsoft.com/en-gb/download/details.aspx?id=10056

Monday, 5 November 2012

Twitter is my friend!

This is just a quick tester as I don't blog as much as I should and haven't quite worked out how to use html yet, so I'm going to test it out with the use of a pretty 'Follow me' button!!

Friday, 5 October 2012

So, 13 chapters in I suppose I'm really doing this thing. So, here's a quote from the book. I hope some of you get to read it!! I'll finish it as quick as I can.
"Suddenly a blaring gunshot is heard, followed by another and another. Three shots fire at the creature before it falls to the ground revealing the figure of Jack’s rescuer at the end of the alley, still holding her gun."

Friday, 20 July 2012

This week at Doothcrow HQ

Doothcrow: The Movie!!

Are the team going to reunite?

The origins of Doothcrow are about to be revealed.

The world is ending and Doothcrow has to look back before they can look forward....

This year, we bring you the final chapter within the Doothcrow Universe, through the medium of paper!

Yes, not a movie, but not quite a hard back. To experience Doothcrow: Origins, you will need to get your hands on a copy of the Doothcrow Magazine!!

This is a one off edition, which will feature the Movie script, interviews, pictures, posters and much more.

To get involved, we're also offering advertising space for your websites, your own fan films, or anything else you want to advertise. Just send your top quality A4 adverts to doothcrow@gmail.com

Once the adverts are in, articles produced and page designs complete, we'll get a definitive quote on the cost of the advert, which may even be free if we can get a great deal!! However, it might cost us loads! But we are going to top the fee at £5. The top prise we will charge will be £5, but we are going to work on bringing that down for you.

For £5 (or less) you will get a full A4 page dedicated to whatever you want e.g. your YouTube channel, twitter page, your own fan magazine. Obviously there will be a limited amount of pages available, so get in there quick!!

We hope you enjoy this product and get involved! We're sorry we couldn't bring you the actual movie but due to time and cost, we were unable to do so. We hope this will make up for it.

Wednesday, 22 February 2012

Postage Due

Hi Doothcrow fans!!

So last year I visited Spain where I filmed a video I can't wait to upload for you guys! Then there was the trip to Warwick Castle. Some of you might have seen the photo we posted at Halloween. I can't wait to edit that video for you! Then there should be an announcement video about our project to be filmed this summer, which we'd love as much help with as we can get. I'm sure that'll get filmed soon.

However, our problem is I have no working video editing software! I don't mean I don't have, but none of it works. I mean even Windows Movie Maker. As soon as I open any of them, the application freezes and I have to exit the program. They only possible issue I can think is relating it to the Graphics driver, but it's been updated, rolled back, re-installed... Now I'm out of ideas. If you have any suggestions, please let me know.

Until then, I hope you look forward to any up coming videos we do and you can still follow Doothcrow on Facebook and Twitter!