[OSM-talk] Interleaving GPS traces with video?

[Gregory]

On 29 March 2010 14:52, Laurence Penney <lorp at lorp.org> wrote:

> Thanks a lot. I was hoping, I guess, that there was some standard for
> simply whacking a GPX file inside an MPEG4 container, and maybe even a
> viewer for such files... Would be doable to make a system that relies on
> parallel files, i.e. a GPX of the same name as the video file, and a viewer
> that would plot a marker on a map as the video progressed. The GPX could be
> trimmed to match the start and end of the video, thus avoiding any video
> timing issues.
>

A really cheap/cheat way of doing it would have your gps record every X
seconds (rather than X distance, or other varying amount). Display a map
with a marker, and make it move to the next location(taken from the trimmed
gpx file) every X seconds. Then you have some way of triggering your map
animation to start and your movie to start at the same time with one button.
I number of problems can be found in this (such as the movie player being
slow to play, or the user pausing the movie), but as I said, it is a cheat
method.

-- 
Gregory
osm at livingwithdragons.com
http://www.livingwithdragons.com
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