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HipFlics Review
by Marc Silverman |
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HipFlics 1.1.1
An Overview of Video File Size
But one of the major complications of desktop video is the immense file size necessary to give us full motion video. In order to create what's known as "broadcast quality" video, we need to have each frame 640 pixels wide by 480 pixels tall, and we need 30 of them per second, for every second of the length of our video clip. Simple math provides some staggering results (if you don't want the math, just go ahead and skip to the next paragraph): 640 x 480 = 307,200 pixels; each pixel is in the RGB format with 3 layers: 307,200 x 3 = 921,600; divide that by 1024 to turn it to kilobytes and you get 900k per frame - the same size a color image of these dimensions opens in Photoshop. A 30 second video clip is 900k x 30 (frames per second) x 30 (seconds in length) = 810,000k, or in more understandable terms: 810 Megs(!) for 30 seconds of "broadcast quality" video. The requirement for video on the computer is to lessen the size of that 810 Meg file as much as possible without sacrificing image quality. When we consider that on the Internet smaller file sizes are of the utmost importance, we can grasp the necessity of outputting smaller sized video files. How is this done? First, we toss out our "broadcast quality" prerequisite. On the Internet and on our computer screens, a smaller sized image is acceptable. So we can decide that a width and height of perhaps 320 x 240 will be okay, or even 160 x 120. In these two cases we'd lower our file size by half or by three quarters respectively. (to 405 megs or 202 Megs - still rather large). Second, we lower the number of frames per second for our video. TV's 30 frames per second is simply too much data for our computers to process, so we can cut our frame rate to 15 fps, or even 10 fps, lessening our file size by half or two-thirds more respectively. (to 202 Megs or 67 Megs for the above examples - now we're getting somewhere). Finally, just like the compression methods in an imaging application like Adobe Photoshop, we can apply compression to the image data itself, much like saving a file in the JPG or GIF format, which lessens the size of the file by applying calculations based on pixels and neighboring pixels. This can lower our final file to 5% to 25% of its original size - I'll use 10% - which results in a file size of about 20 Megs or 7 Megs for our two examples. We were able to compress our 810 Meg file to about 1% of it's original size in order to use it on the Internet or on our computer screen.
What HipFlics does
HipFlics is an easy to use video enhancement and compression tool. Compressing video using HipFlics will process your movies that were exported from FinalCut Pro, iMovie, or any other popular video editing package and prepare them for Internet or on screen delivery. File Sizes can be reduced over 50 times from a multitude of formats and your video image quality will still be clear and clean.
HipFlics has built in presets for certain levels of compression, both video compression presets and audio compression presets. And you can easily create and save your own as well.
A Basic Overview of Compression
Sticking to the Macintosh for the purposes of this review, two Video Codecs are of utmost importance: Sorenson Video and Sorenson Video 3. Using the Sorenson Video Codec will output video which is viewable by anyone with QuickTime installed on their computer - Macs or PCs - and is compatible with older versions of QuickTime back to version 3. Using the Sorenson Video 3 Codec will create video viewable with Quicktime versions 4 or 5. (All of the examples I've posted on my web site used the Sorenson Video Codec. You can view them at: http://www.silvermarc.com/video) The Codecs we favor for audio compression are QDesign for Music, and QualComm PureVoice for voice tracks. These provide the high quality results, and are still fully adjustable. Although the purpose of this review is not to go into the details of compression, this brief overview should serve you for a range of purposes.
The HipFlics Application
The HipFlics application also provides these useful features and utilities:
HipFlics has a built-in watermarking feature that lets you place your logo onto your video. Any Photoshop or other image with an "alpha channel" can be used for the watermark.
QuickTime's Hidden Features
Filters to adjust Color, Brightness, Contrast, Saturation and even some special effects like Lens Flare, Film Scratches, Embossing, Blurring and Sharpening can be accessed with HipFlics directly from QuickTime and used in your video.
Will HipFlics do the trick?
HipFlics has some limitations. If you need to output files in any other format, like Windows Media or Real Media, you'll have to look elsewhere. But QuickTime is as easy an install on the PC as it is on the Mac, and the HipFlics application is available on both platforms. For the purpose of outputting your video for viewing on a computer or a web site, it just can't be beat for what it does at its low price.
Pros: Low price. Plenty of useful features. 4-up compression preview window. Easy to learn.
Marc Silverman is a Manhattan-based web developer and producer of film and video title sequences and effects. All of the video samples posted on his web site http://www.silvermarc.com/video were compressed with HipFlics. |
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