63 lines
1.2 KiB
Bash
63 lines
1.2 KiB
Bash
set -e
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INFILE="$1"
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# additional params can be input to the extraction
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# for time or seek
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shift
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mkdir -p temp
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ffmpeg \
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-i "$INFILE" \
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-r 60000/1001 \
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-vf 'scale=256:-2' \
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-an \
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"$@" \
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-y "temp/$INFILE-%04d.png"
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ffmpeg \
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-i "$INFILE" \
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-vn \
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-ac 1 \
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-ar 15734 \
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-acodec pcm_u8 \
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"$@" \
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-y "temp/$INFILE-audio.wav" || echo no audio
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for frame in "temp/$INFILE-"[0-9][0-9][0-9][0-9].png
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do
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n="${frame#temp/$INFILE-}"
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n="${n%.png}"
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out="temp/$INFILE-dither-${n}"
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last="${n:0-1}"
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node ../dither-image.js "$frame" "$out" &
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if (( last == 9 ))
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then
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echo "frame $n"
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wait
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fi
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done
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wait
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if [ -f "temp/$INFILE-audio.wav" ]
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then
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ffmpeg \
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-r 60000/1001 \
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-i "temp/$INFILE-dither-%04d.png" \
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-i "temp/$INFILE-audio.wav" \
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-ac 2 \
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-ar 48000 \
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-vf 'pad=w=534' \
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-pix_fmt yuv420p \
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-movflags +faststart \
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-y "$INFILE-dither.mp4"
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else
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ffmpeg \
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-r 60000/1001 \
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-i "temp/$INFILE-dither-%04d.png" \
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-vf 'pad=w=534' \
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-pix_fmt yuv420p \
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-movflags +faststart \
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-y "$INFILE-dither.mp4"
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fi
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