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tracker with l-o-n-g video

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trying to use tracker with a 70 minute video
Rita Elaine Silver
2 Posts

am trying to use tracker to track a teacher's motion through a classroom throughout a lesson of about 70 minutes. Two issues come up: when I load the video I get an errors 'the first frame is not a keyframe'. Have looked through the various threads and checked those referring to opening files, importing files, etc. Based on all that, I tried encoding in different formats, using Xuggle or Quicktime -- error persists. BUT the video does open so maybe that is not a problem?
What concerns me most - when video is open, I get only a snippet, about 20 seconds of the lesson. Where is the rest of the video? Can Tracker be used for such a long video? Are these two issues related?

Current Replies - View all
Re: trying to use tracker...   (John Macuk - )
Re: trying to use tracker...   (Douglas Brown - )
Re: Re: trying to use tra...   (Rita Elaine Silver - )
Re: trying to use tracker...   (Jim Deane - )
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