Batch script files for FFMPEG (Microsoft Windows and DOS, OS/2 )

My collection of scripts :)
For converting (audio, video, ...) files using FFMPEG :)

add https://github.com/nagadomi/waifu2x
add boomerang GIFs https://superuser.com/questions/1608327/ffmpeg-boomerang-effect-to-gif
add image2pipe and video pipe2image https://stackoverflow.com/questions/46397240/ffmpeg-image2pipe-producing-broken-video
add slow-down or speed-up gifs: https://blog.floriancargoet.com/slow-down-or-speed-up-a-gif-with-imagemagick/

1. Edit the batch script to your liking. For example, where to trim the video.
2. Just drag a video or audio file onto the batch file. :)

All files have MAIN Code - where you can find main command(s) for ffmpeg.exe
This main command has comment mark:
REM //////////////////// MAIN \\\\\\\\\\\\\\\\\\\\\\\\\
Than main code-command(s) for ffmpeg.exe (Video-ToMP4_FPS-24-25-30-60.bat for example):

 ffmpeg -i %%x -r 30 -vcodec libx264 -acodec copy -map_metadata 0 -map 0 -threads 1 "%%~nx_output_FPS30.mp4"

Gain (Increase) the sound volume of a file on 50% MAIN Code:

ffmpeg -i %%x -filter:a "volume=1.5" -ar 44100 -ac 2 -q:a 0 -map_metadata 0 -id3v2_version 3 "%%~nx_output_GAIN%%~xx"

This bat file doesn't reconvert the original mp3 - because it is the fastest way.
In the same way, it doesn't change the original quality.
But on the other hand, it removes all sidedata from metadata (but save all metadata)
Read this about sidedata and lameinfo (xing) "The ‘lame’ (or xing) header is not officially part of the mp3 specification"
https://eyed3.readthedocs.io/en/latest/plugins/lameinfo_plugin.html

Can change frame rate or FPS of video and recode it to container .mp4 & video codec x264.
By default it is -r 30 - 30 FPS. Choose what you want in MAIN Code:

REM ffmpeg -i %%x -r 24 -vcodec libx264 -acodec copy -map_metadata 0 -map 0 -threads 1 "%%~nx_output_FPS24.mp4"
REM ffmpeg -r "25" -i %%x -vcodec libx264 -acodec copy -map_metadata 0 -map 0 -threads 1 "%%~nx_output_FPS25.mp4"
ffmpeg -i %%x -r 30 -vcodec libx264 -acodec copy -map_metadata 0 -map 0 -threads 1 "%%~nx_output_FPS30.mp4"
REM ffmpeg -r "60" -i %%x -vcodec copy -acodec copy -map_metadata 0 -map 0 -threads 1 "%%~nx_output_FPS60.mp4"

Convert video to GIF files.
By different styles:
Video-ToGIF_16Bit-Style.bat - 16 Bit-Style
Video-ToGIF_32ColorsStyle.bat - 32 Colors Style
Video-ToGIF_Fast.bat - fast&quality
Video-ToGIF_HD.bat - max quality\

-ss - start
ffmpeg -ss 00:01:00.000 ... - cut video from 1 minute to the end of video
-t - duration
ffmpeg -ss 00:01:00.000 -i %%x -t 00:01:00.000 ... - cut video from 1 minute to 00:02:00.000
-to - end
ffmpeg -ss 00:01:00.000 -i %%x -to 00:01:10.000 ... - cut video from 1 minute to 00:01:10.000
Write time in MAIN: ffmpeg ... By different styles:
Video-CutFast.bat - Fast
Video-CutAccurateBeta.bat - Fast&Accurate
Video-CutAccurateAndRecode.bat - Accurate&Recode
Read more about Cut&Seeking here: https://trac.ffmpeg.org/wiki/Seeking

Convert video file to WebM
You can change -crf 0..51 - where 0 is lossless, 23 is the default, and 51 is worst quality possible.
MAIN: ffmpeg.exe -i %%x -vcodec libvpx -crf 30 -b:v 0 -acodec libvorbis "%%~nx_output_WEBM.webm"

youtube-dl-* - the ready-made presets for youtube-dl (it uses yt-dlp, now)
youtube-dl-ThumbNail.bat - it downloads only thumbnail from youtube video
youtube-dl-MP3-192Kbps.bat - it downloads mp3 file - 192Kbps it is the maximum quality of audio file in youtube audio stream

FFMPEG WebPages:

https://www.ffmpeg.org/
FFMPEG About:
Official: https://www.ffmpeg.org/about.html
Wiki: https://en.wikipedia.org/wiki/FFmpeg

YouTube-DL WebPages:

https://rg3.github.io/youtube-dl/
YouTube-DL About:
Official: https://rg3.github.io/youtube-dl/
GitHub: https://github.com/rg3/youtube-dl

yt-dlp About WebPages:

GitHub: https://github.com/yt-dlp/yt-dlp

AtomicParsley WebPages:

https://atomicparsley.sourceforge.net/
AtomicParsley About:
Official: https://sourceforge.net/projects/atomicparsley/
GitHub: https://github.com/wez/atomicparsley

ImageMagick WebPages:

https://imagemagick.org
ImageMagick About:
GitHub: https://github.com/ImageMagick/ImageMagick

srt - [https://trac.ffmpeg.org/ticket/7356]
srt EOF - sub.ass - CRLF and sub.srt - LF - [https://trac.ffmpeg.org/ticket/7362]