@nutbutter@discuss.tchncs.de

Handbrake can help. It is one of the best open-source transcoders. It is not exactly an ffmpeg front end, though.

downhomechunk [chicago]

Agreed, handbrake is what you want.

Johnny 5

Use https://home.tdarr.io/, it has what you are looking for and will do everything automatically! The first setup is never easy!

Faceman🇦🇺

Another Tdarr alternative with (i think) a more flexible and automatable setup is FileFlows (the free version is all you need) you can build node based rulesets and apply those rules to different libraries.

@SmoothLiquidation@lemmy.world

Tdarr is great if you are comfortable setting up a Docker environment. It is a great way to reprocess your whole library.

A good GUI alternative is Handbrake. It uses a different library than ffmpeg but can do the same stuff. One thing about Handbrake to remember is that it is centered around video encoding. So while ffmpeg can process your audio streams without touching the video stream, Handbrake will reencode video every time.

@db2@sopuli.xyz

It uses a different library than ffmpeg

From here:

HandBrake leverages tools such as FFmpeg, x264, and x265 to create new MP4, MKV, or WebM video files

I think you might be confused because ffmpeg is the project and also the name of the executable, the library is libavcodec but it’s still ffmpeg. See here.

∟⊔⊤∦∣≶

I wrote a bash script for this, but I’m not sure of the correct settings so I haven’t used it to re-encode my whole library yet.

Here’s my script in case anyone has any tips:

spoiler

#!/bin/sh

shopt -s globstar

for FILE in */

{

if [[ -d $FILE ]]; then

	continue

fi

match="*-re.mp4"
if [[ $FILE == $match ]]; then
	echo already encoded, skipping $FILE
	continue
fi
match="*-ex.mp4"
if [[ $FILE == $match ]]; then
	echo already excluded, skipping $FILE
	continue
fi

if [[ $(du "${FILE}" | awk '{print $1}') -lt 10000 ]]; then		
	#echo $(date),$(pwd)/,$FILE,toosmall >> errors.csv
	echo $(date),$(pwd)/,$FILE, 0,0,0,0, original too small >> encoding.csv
	continue
fi
if [[ $(mediainfo "${FILE}" | grep -c -e'Audio #') -gt 1 ]]; then
	#echo $(date),$(pwd)/,$FILE,skip-audio >> errors.csv
	echo $(date),$(pwd)/,$FILE, 0,0,0,0, multiple audio tracks >> encoding.csv
	continue
fi
if [[ $(mediainfo "${FILE}" | grep -c -e'Text #') -gt 1 ]]; then
	#echo $(date),$(pwd)/,$FILE,skip-subs >> errors.csv
	echo $(date),$(pwd)/,$FILE, 0,0,0,0, contains subtitles >> encoding.csv
	continue
fi


FULLM=${FILE%.*}
REN="$FULLM-re.mp4"
echo writing $REN

#ffmpeg -y -i "${FILE}" -vcodec libx264 -crf 23 "${REN}" 
#ffmpeg -y -i "${FILE}" -vcodec h264_nvenc -crf 23 "${REN}" 
ffmpeg -y -i "${FILE}" -vcodec libx265 -crf 23 "${REN}" 

ORIGSIZE=$(du "${FILE}" | awk '{print $1}')
NEWSIZE=$(du "${REN}" | awk '{print $1}')
ORIGBITRATE=$(mediainfo "${FILE}" | grep Overall | sed 's/[^0-9]*//g')
NEWBITRATE=$(mediainfo "${REN}" | grep Overall | sed 's/[^0-9]*//g')

echo $FILE vs $REN
echo $ORIGBITRATE vs $NEWBITRATE

#if [[ $NEWBITRATE -gt $ORIGBITRATE ]]; then
	#echo new bitrate is too big, renaming $FILE to $FULLM-ex.mp4
	#echo $(date),$(pwd)/,$FILE, $ORIGBITRATE, $NEWBITRATE, $ORIGSIZE, $NEWSIZE, bitrate increased >> encoding.csv
	#mv "${FILE}" "${FULLM}"-ex.mp4
	#rm -f "${REN}"
	#continue
#fi

if [[ $ORIGSIZE -lt $NEWSIZE ]]; then
	#echo $(date),$(pwd)/,$FILE,sizeToSmall: $ORIGSIZE vs $NEWSIZE >> errors.csv
	echo $(date),$(pwd)/,$FILE, $ORIGBITRATE, $NEWBITRATE, $ORIGSIZE, $NEWSIZE, filesize increased >> encoding.csv
	echo deleting "${REN}"
	rm -f "${REN}"
	mv "${FILE}" "${FULLM}"-ex.mp4
else
	echo $(date),$(pwd)/,$FILE, $ORIGBITRATE, $NEWBITRATE, $ORIGSIZE, $NEWSIZE, ENCODED >> encoding.csv
	rm -f "${FILE}"
fi

}

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