Archive for the 'Macintosh' Category

Jun 11 2008

Using markers to create subclips in Final Cut Pro

Published by Eric under Editing, Macintosh

Final Cut ProOver the six years our film project has been in post-production a number of hard drives have gone to “bit heaven.” Clips had been logged and organized and once lost they weren’t replaced; instead, portions of a fully rendered QuickTime movie were used as placeholders.

Eventually the lost media was recaptured from source tape. One especially tedious task was re-logging ADR from a long recording session. It wasn’t feasible to mark edit points in Final Cut Pro’s Batch Capture because of slow tape transport so I captured the whole session and used the Viewer instead.

Using a mouse in the Viewer to quickly scan audio waveforms and playback was immensely faster but marking edit points for each take was, again, tedious. Looking for a better way, I discovered how to use markers to divide a master clip into subclips - no repetitive in/out points required. The steps:

  • Create a bin to hold your final subclips.
  • Open the master clip in the Viewer. Scrub through the Viewer timeline and in between takes drop a marker using M. Tap M again and enter what will be used as the subclip name.
  • In the Browser expand the master clip to reveal the markers inside. Select all of the markers within the master clip.
  • Drag the selected markers into your new bin.

You’ll find a subclip for each marker you created and they will be named accordingly. Because each subclip is created using an imaginary in/out point based on the marker, it’s important to place the markers based on slate (and “cut!”) or leaving sufficient handles in takes without slates.

You may want to copy the master clip before dragging the markers into a bin because the markers are deleted once you perform the drag operation.

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Jun 03 2008

Disable the Front Row hot-key

Published by Eric under Macintosh

During the course of a day, business or otherwise, I use many Mac shortcut keys. When working with Finder and application windows I’ll often use Command ~ to switch from window to window. Often, in haste, I’ll accidentally hit Command Esc which opens Front Row and disrupts my productivity.

Turning off the Front Row hot-key is easy. Open System Preferences, Keyboard & Mouse and the top entry (for me anyway) is “Hide and show Front Row.” Uncheck the box and it’s done. Until you re-enable the hot-key you can open Front Row using its icon in your Applications folder.

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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 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 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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