May 28 2008

Compressor and QuickTime error -120

Published by Eric under Editing, Film & Video, Macintosh

Final Cut ProAlthough some folks complain that Compressor is more trouble than it’s worth, I use it regularly to create self-contained QuickTime files and format conversions. No problems, really, until this evening.

Encoding a QT video from the Animation codec to a custom H.264 file resulted in Compressor generating “QuickTime error -120.” My was Mac was recently rebooted and neither Final Cut Pro or QuickTime Player was loaded at the time.

The problem was resolved using a suggestion from Apple’s discussion forum. In summary:

As a workaround for the -120 errors, I noticed the Compressor application menu has a choice for Reset Background Processing… which does get things working again, but isn’t really a good solution and suggests there’s a bug in the background application (qmasterd).

FWIW, the forum post is dated May 12, 2007 and I experienced this error on May 26, 2008 - one year and software version later.

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May 15 2008

Data extraction from IMDb

Published by Eric under Editing, Film & Video, History, VFX, Web 2.0

One of my side projects is researching the relationships and work experience between film Directors, Editors, and their Assistants. Unfortunately, IMDb (and IMDb Pro) doesn’t have any reporting or data extraction functions to make this easy - everything is a time consuming and manual process.

After much digging on Google I discovered an accurate search phrase and found a few resources. IMDb doesn’t have its own API although developers have found a way around this using HTTP requests. Thanks to Martyr2 at Yahoo Answers.

http://www.trynt.com/trynt-movie-imdb-api/ - TRYNT web service which can be consumed by languages like PHP and .NET.

http://www.imdb.com/interfaces - imdb does provide interfaces for several platforms. These are often in the form of easily parsable text files. Not the ideal solution, but it can work.

http://sourceforge.net/projects/imdbphp/ - IMDB PHP project over at sourceforge could also be a solution.

No experience with any of them yet but it’s a start.

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May 11 2008

Final Cut Pro, keyboards, and reducing the strain

Published by Eric under Editing, Macintosh

X-key jog/shuttle controllerI’m grateful there are so many keyboard shortcuts in Final Cut Pro because moving my hand between the mouse and keyboard is terribly inefficient and slow. Unfortunately, functions I’m using on a regular basis don’t have keys mapped to them making it a hassle to mouse over. Customizing the keyboard is easy and although it’s very crowded, there are a number of F-keys available if you don’t mind some modifiers like Option. For me, “Export as QuickTime Movie…” is mapped to Option-F1 and “Export OMF…” to Option-F2.

Although I’ve been memorizing keystrokes to no end, what I find lacking is the keyboard itself. Not the feel of the keys but the movement my hands makes across the keys. Picture this: your right hand is grasping the mouse and your left shoots across to press I or O. You could let go of the mouse and use your right hand but if you need to use the mouse immediately afterward it’s impractical.

The same goes for other command keys like F9, F10, J, K, L, and ; and ‘. In fact, it seems the most popular keys put your left hand across the keyboard quite often. These keys could be remapped in a mirror image but that will require remapping existing keys. Swap mouse hands? Ugh, no way.

Inefficiency aside, what about Repetitive Strain Injury (RSI)? It’s less stressful on your hands to keep them parallel with your body, not crossing your body. This is where I wonder about the benefits of a keypad to use alongside the keyboard. A keypad to the left could be programmed with common functions keeping your left hand in one place and your mouse hand on the right - both arms/hands parallel to the body.

P.I. Engineering makes a variety of USB keypads suitable for this task. Prices vary ($119 to $249) for something “editor” friendly. It’s unfortunate their X-keys Desktop (with 20 keys) is the price of a full 101+ key keyboard. The X-key Jog and Shuttle Pro seems the best device, but jog/shuttle devices can be found for much less.

For me, it will come down to this: how much do my wrists hurt after many hours in the clutches of Final Cut Pro?

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Apr 19 2008

Integrating Google AdSense and WordPress without a plugin

Published by Eric under Blogs, Web 2.0

WordPress logoI was using Martin Fitzpatrick’s excellent plugin called AdSense Manager to handle Google ads on my blog. Version 2.x worked well but version 3.x stopped working properly with sidebar widgets and the admin interface failed to commit certain page changes.

My quest to find a solution was unsuccessful so I trashed the plugin and looked for an alternative. Other WordPress plugins looked weak in comparison so I went old-school and within 15 minutes I had a working replacement using a few lines of PHP and JavaScript code from Google. While it’s not as convenient as a plugin, it works fine with sidebar widgets.

Thanks to tamba2’s excellent (and brief) how-to guide.

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Apr 18 2008

Idiosyncracies with anamorphic TIFF image export in Final Cut Pro 6

Published by Eric under Editing, Graphics, Macintosh, VFX

Final Cut ProOur project is shot in DV PAL which has a frame size of 720×576. However, we’re using the footage in anamorphic aspect ratio and discovering that exporting to other formats has interesting side effects.

FCP handles the anamorphic aspect ratio as easily as clicking a checkbox. When exporting a QuickTime movie it will always have a frame size of 720×576 (the native resolution). If you want to create a QT Movie for viewing in anamorphic (1024×576 display size) the footage must be run through Compressor (or QuickTime Conversion) and specify the larger size. It’s not automatically done for you.

The business of handling anamorphic footage is becoming a problem for our visual effects shots. Some artists request TIFF sequences rather than QuickTime Movies and unfortunately TIFF export will render the image in anamorphic’s 1024×576 frame size which produces unwanted artifacts when scaled back down to 720×576.

After some experimentation I discovered the way to force a TIFF export to the native size is unchecking the Anamorphic setting on the clip. Strangely, this produces an image of 768×576 rather than the desired 720×576. Is this OK? I’m waiting for my VFX Supervisor to tell me.

A related bug with TIFF export is the handling of file names. Although Apple warns against the use of special characters in clip file names (i.e.: /, ?, *, etc.) it does nothing to stop you from using them. I haven’t encountered any issues with forward slashes until I began exporting TIFFs. These special characters must be removed during the TIFF export process but QuickTime Movie files are exported without error.

This was observed using FCP 6.02.

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