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Sony vegas frames mix/jerk around
Hey everyone.
I have a really idiotic problem that’s been bothering me for a really long time actually, I just never bothered to ask. Now it’s just over the line.
I noticed that when using .wmv files, which I use often, the frames on the preview tend to jerk back and forth while they’re not actually like that. For example when I play the video, it would work, and then suddenly it jerks back to a frame before that, or way back before that. Basically it just does whatever the hell it wants. And it’s fine with .avi files… I have no idea what to call this and I’ve searched about it quite a few times but couldn’t find anything. It’s very annoying because most of my videos are based on timing with the music, so it’s crucial for me to preview my videos correctly.
Can someone help? It’s bothering me a lot, and I do professional editing with sony vegas. While most of my originally recorded videos in-game (I do videos based on video games) are fine, since I record in .avi, however if I make music videos based from downloaded trailers or other videos which are in .wmv, it really starts giving me hell.
Thank you, and I hope somebody knows what the heck this is and how to find a way around it. -
5 Replies
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> While most of my originally recorded videos in-game (I do videos based on video games) are fine, since I record in .avi, however if I make music videos based from downloaded trailers or other videos which are in .wmv, it really starts giving me hell.
This probably has to do with the fact that WMV uses interframe compression which uses one or more earlier or later frames in a sequence to compress the current frame, while AVI uses intraframe compression which uses only the current frame. The only fix is to transcode the WMV files into a codec which uses intraframe compression for frame accurate editing.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Can you help me figure out how to do that? I’ve never done such things before so it’s a blind walk in a forest for me.
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What codec do you use for your AVI videos? I would render the WMV videos to that codec. Drop each one on the timeline and then render using AVI. Then use those AVI’s for editing.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Oh, wow, really? That’ll take bloody long…
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> Oh, wow, really? That’ll take bloody long…
Well… think about it… you’re trying to edit video that has already been rendered to a delivery format. Now you want to re-edit it but you don’t own the original material. So you need to convert the delivery format back into an editing format. Yes it will take long but it will produce accurate results.
You might be able to use a utility like Super(c) that can batch render multiple files to a new format. Let it run over night.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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