This would be a familiar process to anyone who has used a digital camera and imports pictures to their computer. Copying files from the camera to the computer is a simple drag n’ drop affair. When plugging in the Sony HDR-SR5, it functions as a USB Mass Storage Device. Using the method detailed here, it takes about 5-6 minutes to uncompress and transcode a minute of video, on an Intel Core2Duo running at 3.2GHz with 4GB of RAM and a 10,000RPM hard drive – OUCH!
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It takes some rather respectable computing horsepower to actually convert the files into an uncompressed format that can be played with in a video editing software package. The compression is where a majority of the AVCHD format complaints come originate from, since there is not much out there in terms of being able to edit video stored in the format without uncompressing it first. I’ve seen it mentioned that a Standard Definition compressed clip of is actually larger in file size than an HD clip in AVCHD format. The files the camera generates are compressed at an incredible 15:1 ratio. Even in Windows (or OSX for that matter) many people have headaches with the AVCHD format, so I figure that Linux users are probably going to be having a helluva time trying to get it to work. I’ve read a few things about the format the camera uses, called AVCHD.
The best example is on YouTube, where it happens behind the scenes in the Google computing cloud, and everything “just works.” The answer was a tiny bit more complicated than I imagined, and immersed me into the otherwise unknown world of video transcoding, which is something millions of people do every day but probably never think about it. When I opened it, the first question in my head was not atypical of a Linux users’ train of thought:
This holiday season, I was an extremely lucky recipient of a Sony HDR-SR5 video camera with a whopping 40GB hard drive inside.
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