On 4/15/19, Michael Koch <[email protected]> wrote: > Hi all, > > over the last months I've collected a list what's missing in FFmpeg's > documentation. > At the end of the list there are a few feature requests. > [...] > Feature request: > -- Decay filter, makes short flashes of light appear longer, with an > exponential decay curve. Like on an analog oscilloscope screen with long > persistence time. Could be used for videos of the night sky to make fast > meteors appear longer. Should work as follows: > For each pixel do: Multiply the RGB values from the previous output > frame with a decay constant in the range [0..1], for example 0.95. Use > these RGB values for the next output frame. But if the RGB value from > the next input frame is brigher than this, then use the brighter value.
I'm not sure about "decay" name for filter. Decay is usually something else. _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
