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May 20, 2012, 02:29:10 AM


Author Topic: Video Conversion before Editing  (Read 106 times)

Offline solid bob

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Video Conversion before Editing
« on: February 17, 2012, 11:51:09 PM »
Ive seen this sparingly around some forums/internet, and a lot of people convert their video clips before editing. This something I havent done yet because Vegas 10 accepts the canon codec.
I assume my computer could process and edit faster if I convert, so my question is how do yall go about this in your workflow?
Also, what programs and setting do you use/prefer?


Thanks guys.
"Wow, that camera takes nice pictures!"

Offline kfmorris

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Re: Video Conversion before Editing
« Reply #1 on: February 19, 2012, 09:41:43 AM »
I use Pinnacle Studio Version 14, I am sure there is now an even newer version on the market. It seems to have all the features I need. I was originally using the AVS package but I found once in awhile it dropped frames. I simply download the video files onto my computer, tag them through Pinnacle and do my basic editing. At the tail end I do my batch conversion. The only thing I can suggest is that you have a minimum of a dual core PC or Mac. Anything less at 720 or 1080 is painfully slow and stands a good chance of dropped frames.

Offline AndyCivil

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Re: Video Conversion before Editing
« Reply #2 on: February 19, 2012, 12:20:53 PM »
Ive seen this sparingly around some forums/internet, and a lot of people convert their video clips before editing. This something I havent done yet because Vegas 10 accepts the canon codec.
I assume my computer could process and edit faster if I convert, so my question is how do yall go about this in your workflow?

Here is the potential issue: our camera produces video in H.264 which is compressed by having "key frames" which are complete, plus the following frames are differences from the previous one. The problem is that random access becomes awkward; to present a frame which is not a key frame, you have to decode the closest key frame prior to that, and then process all the differences from that key frame to the frame you want.

This is one of the reasons that Digital Video (DV) was created (for SD video); each frame is separate. However, this makes the file much larger (the compression is not so good).

Having explained that, I also use Vegas 10, and I have not seen any issues with random access, so clearly the program handles it well/quickly. On the basis that there doesn't seem to be a problem, and if you change the coding first and yet retain the quality the file size will explode, I would assert that there's no need to do it. It might even slow things down, as the program would have to handle larger files...

Offline Bif

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Re: Video Conversion before Editing
« Reply #3 on: February 21, 2012, 05:38:36 AM »
I use Pinnacle Studio Version 14, I am sure there is now an even newer version on the market. It seems to have all the features I need. I was originally using the AVS package but I found once in awhile it dropped frames. I simply download the video files onto my computer, tag them through Pinnacle and do my basic editing. At the tail end I do my batch conversion. The only thing I can suggest is that you have a minimum of a dual core PC or Mac. Anything less at 720 or 1080 is painfully slow and stands a good chance of dropped frames.

Version 15 is that newer version, I went from version 12 to 15 and on a 2nd generation Core i7 based machine it is smooth as can be with no transcoding necessary.  The 2nd gen Core i7 I have is a quad core, I now wish I'd spent a bit more on the Core i7 six core processor.  Reports are that literally flies.