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4

This is actually a collateral effect of the concept of rolling shutter. Most video devices do not expose all the frame area at once. They expose starting from one side and (up or down) and move from there. (The example has the camera rotated 90° so the effect is on the sides of the frame). This can be either a mechanical element that moves or rotates or an ...


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Keep FLV but trim using demuxer seek and duration. ffmpeg -ss 00:00:03.000 -t 00:00:01.000 -i output.flv -c copy output2.mp4 Also, skip -ss if it's 0 i.e. stream start.


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Lossy codecs such as x264 degrade the image quality by design, if you don't want to lose image quality you either have to use a lossless codec or better yet, not re-encode at all. I assume the source material is either H.264 or MPEG-2, so the best solution in your case would be to simply copy all the streams into the new container: ffmpeg -i input.flv -c ...


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I often use Processing for simple graphics or scripting projects, which would be difficult to achieve with After Effects expressions. If you prefer coding in C++ to Java, you could look at OpenFrameworks which is a similar tool. Both are designed to make it easy to experiment visually while using the data processing tools of a coding environment. tomh ...


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I would do this in Blender, which uses Python as a scripting language. This gives you a powerful way to "fly" through the data as it animates. If you are happy with just a static perspective of the map with the points being animated, R has an extraordinary range of graphing capabilties that can be used to generate animations.


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