Posts Tagged ‘codec’

Free way to trim a WMV File

Friday, August 12th, 2011

The other day I wanted a 5 minute segment from a WMV, Windows Media Video, file. To be more precise, the codecs used are WMA2 for audio and WMV3 for video, according to VLC.

My normal tools of choice for taking clips from video are VirtualDub, and Avidemux. Unfortunately, both of these tools failed on the WMV file. Both could preview the input file, but neither was able to create a new video file that worked. I tried both the fast “copy” method, and the full re-compress method. This didn’t surprise me too much, neither application is known to work very well with Microsoft WMV files, and I think I’ve run into this issue in the past. Both work great for AVI, MP4, and various other files that I’ve worked with over the years.

I really wanted this video clip, so I did some searching for some new tools to use.  I found AsfBin, which is free for non-commercial use. It worked like a charm.  The preview window seems a bit quirky for me, but the resulting file works fine, so I’m happy.

 

 

Explorer.exe Crashes After Selecting a Large HuffYUV AVI File

Sunday, March 28th, 2010

I’m playing with massive 20GB-90GB video captures from the TV tuner. You learn a few tricks when you start playing with 50GB files. It’s mind boggling, only a few years ago, the hard drive in my day-to-day computer was not this big!

Anyway, they’re HuffYUV compressed AVI’s. HuffYUV is a neat codec for video capture, it’s lossless, and it’s fast. I am transcoding these files to MPEG4 on the computer downstairs, but, Windows’ explorer.exe kept crashing every time I highlighted the .avi. It was either the massive file size, or something with the AVI. It turned out to be the code, HuffYUV, I think.

Installing ffdshow tryouts, which includes a multitude of codecs for Windows, including HuffYUV, seems to have done the trick! Plus, I’ve probably updated a whole bunch of codecs that were several years old on that computer.