Compressor Bug

Just when I thought I wouldn’t have anything to blog about, I find a bug in Compressor. Hoorah!

Step 1:

Make a cluster. Doesn’t have to include other machines, but it has to be a real cluster, created in QAdministrator. Read the docs if you don’t know how to get this far.

Step 2:

Submit a job to the cluster using the Compressor 2.1 “Video for iPod” preset.

Step 3:

Listen to the silence of your missing audio track!

Audio track is fine if you submit it to “This Computer” but disappears as soon as you submit it to a real cluster. Tested on an xServe, an iMac and a Macbook.

Fun!

As a minor aside though, if you want to run jobs simultaneously in Compressor (which Apple says can’t be done) take a look at the qmasterprefs command line program. Particularly this bit (using qmasterprefs -list):

-service “Compressor Processing” on instances 1 autorestart off unmanaged off

Changes the instances to whatever you want, rebuild your cluster and marvel at the simultaneous processing!

It’s been 6 months, why is 24F still a nightmare?

I can’t comprehend why Canon hasn’t pushed forward industry support for 24F. It’s absolutely ludicrous that 6 months after the launch of the Canon XL-H1, the major editing packages can’t edit it, and none of the decks can play it. Why Canon, why? Part of introducing a new format involves supporting said format. Instead, 24F is being left to die, used only by those willing to spend hours tweaking and testing.

</rant>

Got 5.1, yay!

Got my copies of Final Cut Studio 5.1 today. Been poking around a bit and there are definitely some nice things. Compressor in particular seems a bit less weird. I need to play around a bit more to get a sense of what has changed.

Still digging out from being gone for a few days – the sheer excitement of being stranded in a field in Texas with a broken down UHaul has overwhelmed my urge to blog. (It was an interesting weekend)

Wireless Tally Lights

It’s project time! We’re shooting a project right now in which many of the crew end up watching a monitor in a room separate from the shoot. This often means that the crew doesn’t know when tape is rolling and when it’s not. Now, wouldn’t it be convenient if there was a tally light that could be placed anywhere within reason to alert the crew?
Read on…

Continue reading

Calculating Valid Chroma?

Does anyone have a good method for determining whether chrominance is legal, based on YUV values? I can go with RGB if need be as well. Best I’ve found is that the three RGB channels shouldn’t average to greater than 75% of 255 in 8bit sampling, but I’m not really convinced that’s accurate. Aren’t the values in some way weighted based on the hue?

Arggg…

Heading to Austin

I’m off to Austin for a few days to help a friend move. Everyone says Austin has an abnormally large population of hipster video folks, so I’m looking forward to being immersed.

If Apple releases the Macbook on Tuesday, I’ll surely blog it. Otherwise, I’ll check back in next week.