EasyPreview

@echo off
if exist EasyPrev.txt del EasyPrev.txt
echo ###### File - Path to source file
echo ###### Output File - Webm with preview filename (without .webm)
echo ###### Frame Time - From this time the picture for preview will be taken
echo ###### Example: File: C:\video.webm, Output file: video_s_prev.webm, Frame Time: 00:05
set /P f="File: "
set /P o="Output File: "
set /P t="FrameTime: "
ffmpeg -hide_banner -ss %t% -i %f% -vframes 1 -c copy -an -y TEMP_EasyPrev_preview.webm
copy /Y %f% TEMP_EasyPrev_source.webm
echo file 'TEMP_EasyPrev_preview.webm'>nul>>EasyPrev.txt
echo file 'TEMP_EasyPrev_source.webm'>>EasyPrev.txt
ffmpeg -hide_banner -itsoffset 0.04 -i %f% -f concat -i EasyPrev.txt -map 1:v -map 0:a -c copy -y "%o%.webm"
del TEMP_EasyPrev_preview.webm
del TEMP_EasyPrev_source.webm
del EasyPrev.txt
echo ##### Script End #####