mirror/thumbnail.sh
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Fixing odd error, when running in a loop:

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http://unix.stackexchange.com/a/36411
This commit is contained in:
Findus23 2015-11-02 10:46:21 +01:00
parent ac91440f1e
commit 30798acb6f
1 changed files with 3 additions and 3 deletions
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6
thumbnail.sh
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@ -22,7 +22,7 @@ then
setting="800"
echo "$(tput setaf 2)using default number of frames to analyse: $(tput setaf 3)$setting$(tput sgr0)"
fi
ffmpeg -y -i $inputfile -vsync 0 -vf "thumbnail=$setting,tile=$tile" -frames:v 1 $outputfile
< /dev/null ffmpeg -y -i $inputfile -vsync 0 -vf "thumbnail=$setting,tile=$tile" -frames:v 1 $outputfile
elif [ "$mode" == "fast" ]
then
@ -31,7 +31,7 @@ then
setting="120" #min seconds between keyframes
echo "$(tput setaf 2)using default seconds between keyframes: $(tput setaf 3)$setting$(tput sgr0)"
fi
ffmpeg -y -i $inputfile -vsync 0 -vf select="eq(pict_type\,I)*(isnan(prev_selected_t)+gte(t-prev_selected_t\,$setting))",tile=$tile -frames:v 1 $outputfile
< /dev/null ffmpeg -y -i $inputfile -vsync 0 -vf select="eq(pict_type\,I)*(isnan(prev_selected_t)+gte(t-prev_selected_t\,$setting))",tile=$tile -frames:v 1 $outputfile
elif [ "$mode" == "equal" ]
then
if [ -z "$setting" ] || (( $setting < 1 ))
@ -48,7 +48,7 @@ then
frames=$((${tile/"x"/"*"})) # 3x3 -> 3*3
sec_between=$(python3 -c "print($setting/$frames)")
echo $sec_between
ffmpeg -y -i $inputfile -vsync 0 -vf "fps=1/$sec_between,tile=$tile" -frames:v 1 $outputfile
< /dev/null ffmpeg -y -i $inputfile -vsync 0 -vf "fps=1/$sec_between,tile=$tile" -frames:v 1 $outputfile
# alternativ: select every x frame https://ffmpeg.org/ffmpeg-filters.html#select_002c-aselect
else