timelapse | stream live the time lapses

I'd like ffmpeg to call a shell script each time it processes a new image, and to send that filename to the script and ideally also send the filename of the next image it'll process (if any).

This is my ffmpeg command so far (for a jpg -> mov timelapse).

I want to get the latest entry in a JSON. The JSON is not sorted in any way but there are dates associated to the other values.

My Json looks like this:

I'm trying to make a very barebones page that loads in two specific PDF documents and on page load would simply display one and then after a 60 second timelapse, would cycle over and show the other.

My issue, currently, is simply getting the PDFs into variables in the JS so that I can assign the time cycle to them.

How can I take the PDFs being sent from the controller and put them into JS variables in order to accomplish this properly?

Still fairly new to PowerShell and trying to get a list of all my OneNote pages within a given Section and Notebook...and into a CSV. I'm nearly there, but the final bits are eluding me. I've tried a few things:

I'm using https://github.com/wightsci/OneNoteUtilitiesGraph

I have a game which can create some screenshots, and I want to transform them to mp4 video. So I've the next command:

This is a continuation of a post which I could not get an answer that works so I here I go again.

I am trying to display images using data returned by a mySQL query. The query returns the names of an image files and a timelapse which is a number (seconds). I need to display each image for the number of seconds returned in TimeLapse.

With help from my first post I am able to display images that are static but not from the result of the query.

The static method works and displays all the images one after the other

I have a folder with thousands of jpgs at 1024x768 that I want to convert into a single video for playback.

The error I get is Error initializing output stream 73:0 -- Error while opening encoder for output stream #73:0 - maybe incorrect parameters such as bit_rate, rate, width or height Conversion failed!

Here's my input $ ffmpeg -i Timelapse/*.jpg -c:v libx264 -preset ultrafast -crf 0 output.mkv -y

What is strange is it errors on a specific numbered output stream. It seems to be either 71:0, 72:0, or 73:0. I thought it was something wrong with the file it is attempting to process in the given stream but the resolution is all the same (as I've seen errors when its not divisible by 2). I've deleted the 71st-73rd image in hopes it was somehow messed up but that doesn't help either. I've ensured my libx264 is installed correctly as well.

Any suggestions?

Terminal output example

Say I have a db containing events:

I want to make my Raspberry Pi camera timelapse boxes to take long exposures at night, and shorter exposures at day. I've gathered a list of sunset and sunrises for my location like this (Script here)

It has the time of day where sun rises, noon and sets. (Or the value "sun": never_rises, or never_sets for polar winter and polar summer, where I live.)

My Picamera has max 6s exposure, so 6000000 microseconds, to get usable images at night. In daytime, i get a good exposure around 4000 microsecond exposure.

I want to make a script that calculates exposure time from max: 6000000 to min: 4000 based on the current time, every minute.

Im thinking something like: Below the time, and until 2 hours before sunrise, its dark, = max exposure.

In 2 hours from sunrise, to daylight, get a value from max to min.

min continues trough the day.

Then, from min to max in two hours, from sunset and outwards, when its dark again.

But my math skills are weak. How could I calculate a smooth transition from max to min each minute, during two hours?

If the sun set and rise was the same time every day, I could make a excel sheet to get usable values, but as the sun set and rises at different times every day it gets tricky.

Scripts used to make the timelapses can be found here.