Unix for Artists: Fun with FFMPEG is a workshop hosted by the Echo Park Film Center.
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unix4artists/ffmpeg/filter/bipack_steps.sh

58 lines
1.1 KiB

#!/bin/bash
set -e
W=1280
H=720
A=${1}
B=${2}
MATTE=${3}
OUTPUT=${4}
MATTE1=matte1.mov
MATTE2=matte2.mov
PASS1=pass1.mov
PASS2=pass2.mov
echo "Generating mattes from $MATTE..."
ffmpeg -y -i "$MATTE" -vf eq=saturation=0:contrast=100,smartblur=1 -c:v prores_ks -profile:v 4 "$MATTE1"
ffmpeg -y -i "$MATTE1" -vf negate -c:v prores_ks -profile:v 4 "$MATTE2"
echo "Applying matte to $A..."
ffmpeg -y -i "$A" -i "$MATTE1" \
-filter_complex 'color=0x000000:size=1280x720,format=rgb24[bla];[bla][0][1]maskedmerge' \
-c:v prores_ks \
-profile:v 4 \
-shortest \
"$PASS1"
echo "Applying matte to $B..."
ffmpeg -y -i "$B" -i "$MATTE2" \
-filter_complex 'color=0x000000:size=1280x720,format=rgb24[bla];[bla][0][1]maskedmerge' \
-c:v prores_ks \
-profile:v 4 \
-shortest \
"$PASS2"
echo "Cleaning up tmp matte files..."
rm "$MATTE1"
rm "$MATTE2"
echo "Combining matted layers together into $OUTPUT_FILE..."
ffmpeg -y -i "$PASS1" -i "$PASS2" \
-filter_complex "[0][1]blend=all_mode='lighten'" \
-c:v prores_ks \
-profile:v 3 \
-shortest \
"$OUTPUT"
echo "Cleaning up temp files..."
rm "$PASS1"
rm "$PASS2"