Script / software to create lightversion of video's

Byenary · 01-05-2014, 10:04 AM

Hi,

Got bunch of videos organized in folder stuctures, these are high res and the wifi and tablet can't handle the size
So I'm looking for a script that loops trough the directory and create a copy of all files and downscaling them.
I'm able to sort out the ffmpeg command, but not sure about the rest of the script (looping trough all files and recreate directory and process troug ffmpeg if not existant on destination.

Lots of thx and Happy NewYear

druuna · 01-06-2014, 08:42 AM

Have a look at this example:

Code:

#!/bin/bash

while read inFile
do
  outName="${inFile%.*}"                    # name part
  outExt="${inFile##*.}"                    # extension part
  outFile="${outName}.downscaled.${outExt}" # new name for outfile

  # only do this when outfile does not exist
  [[ -a "${outFile}" ]] || echo ffmpeg -i "${inFile}" ..... "${outFile}"
done < <( find . -type f -print )

This will create the new file(s) in the same directory as the original, but the name of the output file is changed: movie.avi -> movie.downscaled.avi

The find .... part looks for all files from where the command is executed. You might want to change this to a full path: find /path/to/first/movie/dir -type f -print

The above only echo's the ffmpeg command and does not execute it (remove the echo and edit the command to your needs).

This is just a rough example and might need some tweaking to meet your specific needs.

schneidz · 01-06-2014, 09:55 AM

this is my modified xvidenc output:

Code:

schneidz@xbmc:~$ cat bin/xvidenc-ac3-mkv.ksh 
#!/bin/bash
################### START OF COMMANDS ###################
dvd=`lsdvd $1 | grep "Disc Title:" | awk '{print tolower($3)}' | sed s/_/-/g`
#mkdir /home/xbmc/win/stuff/clips/$dvd
titles=`lsdvd $1 | grep ^Title: | cut -b 8-9 | tail -n 1`
i=1
if [ -n "$2" ]
then
 i=$2
 titles=$2
fi

while [ $i -le $titles ]
do

/usr/bin/mencoder "dvd://$i" -nosub -dvd-device $1 -o /dev/null -vf pp=al:c,softskip,unsharp=l5x5:.25:c5x5:.25,harddup -aid 128 -channels 6 -oac lavc -lavcopts acodec=ac3:abitrate=192 -a52drc 1 -ovc xvid -xvidencopts pass=1:turbo:me_quality=6:vhq=4:threads=2:max_bframes=2:bvhq=1:nopacked:quant_type=h263:noqpel:nogmc:trellis:nointerlacing:chroma_me:chroma_opt:hq_ac:nolumi_mask:rc_reaction_delay_factor=0:rc_averaging_period=100:closed_gop:autoaspect -passlogfile "$dvd-`zero-pad-2.x $i`.log"

/usr/bin/mencoder "dvd://$i" -nosub -dvd-device $1 -o "$dvd-`zero-pad-2.x $i`".avi -ffourcc XVID -vf pp=al:c,softskip,unsharp=l5x5:.25:c5x5:.25,harddup -aid 128 -channels 6 -oac lavc -lavcopts acodec=ac3:abitrate=192 -a52drc 1 -ovc xvid -xvidencopts pass=2:bitrate=1000:me_quality=6:vhq=4:threads=2:max_bframes=2:bvhq=1:nopacked:quant_type=h263:noqpel:nogmc:trellis:nointerlacing:chroma_me:chroma_opt:hq_ac:nolumi_mask:rc_reaction_delay_factor=0:rc_averaging_period=100:closed_gop:autoaspect -passlogfile "$dvd-`zero-pad-2.x $i`.log"

sleep 2

/usr/bin/mkvmerge   --title "$dvd-$title-ac3" --track-name 0:"$dvd-$title-ac3" --language 1:en --track-name 1:"AC3 5.1" "$dvd-`zero-pad-2.x $i`.avi"      -o "$dvd-`zero-pad-2.x $i`.mkv"
sleep 2
rm "$dvd-`zero-pad-2.x $i`.avi" "$dvd-`zero-pad-2.x $i`.log"
i=`expr $i + 1`
done
#################### END OF COMMANDS ####################