Tag Archives: iphone

How to rotate iPhone video on a Mac

I ran into what is apparently a not uncommon problem with iPhone video: you start to take a video while phone still thinks it’s in portrait orientation (long axis of the phone vertical) and then the rest of the video is stuck that way, even if you took 99% of it in landscape mode (the way God intended). You thus have a video that the Mac always wants to display sideways. If that didn’t make any sense, the bottom line is I had a video I needed to rotate 90 degrees, and maybe you do, too. While there were plenty of solutions available on the PC, tons of Googling turned up virtually nothing for the Mac, short of finding an old copy of iMovie from five years ago.

Fortunately, I lucked in to a great solution, which doesn’t even require transcoding (with the attendant loss in quality that would result). By the way, this worked for me in getting a video from portrait to landscape, and I suspect it may only work in that situation. (That said, this should be the only valid situation in which this problem occurs, as nobody in their right mind should ever shoot a video in portrait mode, and if you do, I’m certainly not going to be complicit in aiding and abetting that crime against humanity.)

The solution requires a copy of the very nice all-purpose video player, VLC.

  1. Open the video in VLC
  2. It should actually open up in landscape orientation, regardless of the erroneous orientation data in the movie file from the iPhone.
  3. Select “Streaming/Exporting Wizard” from the File menu.
  4. Select “Transcode/Save to file” and click next.
  5. Use “Existing Playlist” and select the file you just opened below, click next.
  6. Leave everything untouched (i.e. both check boxes blank) on the transcode screen and click next.
  7. Choose MPEG4, click next.
  8. Click the button to tell VLC where to put the output file, then click next.
  9. Click finish.

This should be all it takes. The process will be fairly quick, since there’s no transcoding, but its not instantaneous as it does have to move a lot of bits into a new file.

Getting the most data speed out of your cell phone

You may have noticed there have been very few posts here. There’s a reason for that. The first and foremost is that sending my rants in to the void has not been as personally cathartic as I’d hoped. My other goal for the blog, which actually has been somewhat successful, was to simply provide a vehicle for putting information out on the web that I thought might be useful for people, and that I couldn’t find elsewhere. Based on the traffic stats, those posts have actually been worthwhile, and my only reason for not doing more of this kind of post has been that I’ve been too busy playing with my son, finishing up my projects at MIT, and trying to get a job (in that order).

So, going forward, I’m just going to focus on the second category of posts (though I reserve the right to devolve to the first occasionally). This blog was getting too negative, anyway. In that spirit, here’s a particularly useful trick I just figured out while sitting in a coffee shop working remotely.

I recently gave up my nice window office since I was feeling guilty about taking up a nice spot but only working part time. So, I’ve been doing a lot of work remotely, usually from a coffee shop given that working at home just isn’t very productive when there’s an adorable toddler running around begging to be hugged. So, I splurged and decided to start paying the extra $20 a month to use my phone as an internet connection for my computer. This is becoming a pretty common thing, and Sprint even offers phones that will create a WiFi network on the fly (I use Bluetooth with my iPhone). I expect this will become even more common once the iPhone hits Verizon, as Apple will reportedly allow this version of their phone to create WiFi hotspots, too.

I would typically just leave my phone laying flat on the table next to my laptop. However, giving it a minute of thought, this is actually pretty dumb, for two reasons. First, having the phone so close to the laptop is probably not smart, as computers are notorious spewers of electromagnetic interference at pretty much every frequency imaginable. In theory, they should be shielded, but nothing is perfect and between the memory data rates and the processor clock speeds, a computer pretty much has the cell phone spectrum covered directly, if not with overtones. So, keep the cell phone away form the computer at least a foot or so.

Most importantly, however, leaving the cell phone flat on a table is a bad idea because it puts the antenna horizontal, whereas cell phone signals are polarized vertically. (What this means, if you’re not a fan of electromagnetics, is that the electrons in the cell phone tower antenna are being shaken up and down, not side-to-side. Radio waves are really just a way of keeping track of how electrons interact with each other. Without anything interfering, the electrons in your cell phone’s antenna will be wiggled in the same orientation and frequency as those in the cell tower antenna. However, antennas are designed for their electrons to be wiggled in a certain direction (it’s almost always along the long axis of the antenna) and a cell phone’s antenna is oriented with the assumption that the user is holding it upright against their ear.) Once I realized this, I put my phone up against a nearby wall so that it was standing straight up and down (as if somebody were holding it) and my data rates nearly doubled.

So, if you’re using your cell phone as an internet connection, keep it a bit away from the computer and prop it up so it’s vertical. Keeping it vertical in your pocket probably isn’t a great idea, since your body is pretty good at blocking radio. If you find this helps, please let me know in the comments. Right now my experience alone isn’t very statistically significant, to say the least.

How to quit your job with an iPhone

In ten easy steps:

  1. Purchase an ‘R’ rated movie from the iTunes music store.
  2. Pause movie during particularly noisy sex scene, preferably one involving farm animals.
  3. Turn off phone.
  4. Go to important meeting with your entire staff, including boss.
  5. Turn off ringer using mute switch and put phone to sleep.
  6. Think you’re safe.
  7. Innocently pull out headphones from jack, momentarily shorting out badly designed mechanism in jack used to sense the remote play switch.
  8. Remain blissfully unaware that you’ve just set a chain reaction in motion which will destroy your career.
  9. Sit in stunned horror a few seconds later as sounds of impure love eminate loudly from your shirtpocket in the middle of your boss’ presentation, despite the silent switch being on.
  10. Run back to office in tears to polish up resume.
  11. (Optional.) Write Steve Jobs an angry letter about how good design includes more than just polished metal.