Help to use PIPP to convert MOV to AVI

Processing Solar System Troubleshooting Moon
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Leonardo Henning avatar
Leonardo Henning avatar
Hello, 

I'm using PIPP to convert a MOV video taken from my point and shoot camera (Nikon Coolpix L820) to uncompressed AVI for use in Autostakkert3, I'm also using it to center the lunar disk in the middle of the frame. But when the processing reaches 82%, it always crashes and an error message appears saying "Error writing to AVI file".

Video type is MOV (H264) and options are optimized for Solar/Lunar full disk. The disk where the AVI video will be saved has enough space to store it, so I have no idea what is going wrong.

This is the first time I use the frame stacking technique, so any help will be appreciated.

Thanks in advance!
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andrea tasselli avatar
andrea tasselli avatar
If it is going to be bigger than 2 GB then It won't work because that is the file size limit of standard AVI files. It would be a good work around to split the MOV file in two equal segments and then stack them separately.
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Leonardo Henning avatar
Leonardo Henning avatar
andrea tasselli:
If it is going to be bigger than 2 GB then It won't work because that is the file size limit of standard AVI files. It would be a good work around to split the MOV file in two equal segments and then stack them separately.

Its Worked! Thank you so much!
Zeb Németh avatar
Zeb Németh avatar

I have used FFmpeg for file conversion instead of PIPP, maybe it helps circumvent the 2GB file size limit?

Since my uncompressed Autostakkert-ready AVI’s usually end up becoming like 10 GB from Nikon’s MOV… I suspect there is something about PIPP that limits your process, not AVI itself. I might be wrong though.

Here’s my recently updated workflow, since moving to fedora (but Windows also has FFmpeg available to install and use, however; just downloading ffmpeg.exe somewhere reliable and placing it in the Autostakkert directory already works wonders (autostakkert guide page). Otherwise, if you don’t want Autostakkert to have to start processing upon opening each file; .sh is probably .bat, and no need to make it executable, .bat is already executable last I remember):

I made an extToUncompressedAVI.sh script in a text editor that contains the following:

#!/bin/bash

old_extension=$1

for i in *."$old_extension";

do ffmpeg -i "$i" -vcodec rawvideo "${i%.*}.AVI";

done

and have made executable by running

chmod a+x extToUncompressedAVI.sh

in a terminal in the same folder as the script.

I move it to the folder with the .MOVs. Then, I open a terminal and run

sh extToUncompressedAVI.sh MOV

and my PC will chug steadily through the all files there. Just change MOV to whatever extension your camera uses and it should still work, FFmpeg is rather powerful.