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Appcelerator cloud service certificate

June 6th, 2012 | No Comments | Posted in Uncategorized

I see that a lot of people end up to my blog by troubleshooting Appcelerator cloud service. I have written about this in this post: Push Notification tutorial with Appcelerator Cloud

But to say it shortly again. You cannot upload .cer file but you will have to make .p12 certificate. You can do this using Keychain Access on your mac.

You will have to right click on the certificate and choose export… from the menu.

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Apple compressor and h.264 strange 1px line problem.

September 4th, 2010 | 1 Comment | Posted in apple compressor

Apple Compressor is an awesome little encoder which comes along with Final Cut Studio bundle. I don’t use it all of the time but when I have a lot of rendering to do I usually lean towards using compressor. It’s got queue rendering and you can share the rendering between different machines etc. And did I mention it’s fast. So yeah I recommend it to anyone doing video production and wants to render stuff out for different media. But I’m not here to praise but rather talk about a strange problem I had.

The Problem

I’m rendering a h.264 video out to a flash website. I’ve done this before and it always works out as expected (sometimes making 3-4 test renders to see the quality/size ratio). This time however I get good quality as always, but also a thin 1px grey (or white) line is rendered into a video. I would not mind usually, but for this site and video you can really see the line when in fullscreen mode. And the video being really dark is not helping much. The grey line really stands out.

The Solution

Googling like a mad maniac and reading through tons of forums didn’t help. Finally I found an apple support discussion that handed me a solution.
It seems that h.264 video is compressing video in 16pxX16px chunks. So basically, if you give the encoder odd sizes to chew it’ll go a bit cuckoo with unexpected results. It’s not a problem with video when width and height can both be divided by 16. 
So when you are doing odd sizes, be sure to have both dimensions be a multiplication of 16 and you’ll avoid this annoying problem.

My dimensions:
1280X573 Failed with grey line on the bottom
when changed to:
11280X576 Perfect video.

Stupid problem with a really simple solution you just have to know.

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Unibody MacBook Pro not starting up after battery depleted

May 14th, 2010 | 6 Comments | Posted in Mac Hardware

Sleep time on MacBook Pro too long!

Just a tip.

The first time my battery got empty on my brand new unibody Apple MacBook Pro I got really scared and pissed off. It just would not start up again. I was certain it will be a case for Mac Store guarantee department.

Now, years and two unibody MacBooks later I don’t worry any more. I know that after the battery power has run out I will have to wait at least 5 minutes plugged until my machine will restore the last session. I’ve tested it with 15″ and 17″ machines and both of them have this problem.

So if it happens to you, don’t get scared and start calling Mac Store too soon. Just wait for at least 5-10 minutes before you do, as it will probably start up soon.

Another Tip!
Second thing what’s a bit weird on unibody MacBooks is the time until it goes to sleep after you close the lid. It takes about a minute before it get’s silent. If possible try not to pack it into your bag before it’s totally silent. If you do and something goes wrong in the bag, and the machine won’t turn itself off you will get a really hot machine when you take it out later. Happened to me a couple of times. If it’s active in the bag for too long, I’m sure you will fry something inside.
I asked about this in MacStore and the geniuses said it’ll be fixed with the latest Snow Leopard update, but it’s still there. I guess it didn’t get fixed after all 🙁

Share your experience in comments if you have additional tips. Thanks.

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