25 lines
695 B
Bash
25 lines
695 B
Bash
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#!/bin/busybox ash
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set -euo pipefail
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for i in 1 2 3; do rm "C0$i.svg" || true; rm "C0$i.mp4" || true; done
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function write_svg() {
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echo '<svg viewBox="0 0 1920 1080" width="1920" height="1080">'
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echo ' <rect fill="'"$1"'" x="0" y="0" width="1920" height="1080"/>'
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echo '</svg>'
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}
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write_svg blue >C01.svg
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write_svg green >C02.svg
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write_svg red >C03.svg
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function render_svg() {
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ffmpeg -hide_banner -vaapi_device /dev/dri/renderD128 \
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-loop 1 -i "$1" \
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-filter_complex "[0]format=nv12,hwupload[v];aevalsrc=sin($3*2*PI*t):s=48000[a]" \
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-map "[v]" -map "[a]" \
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-c:v h264_vaapi -r 25 -t 4 -b:a 128000 "$2"
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}
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for i in 1 2 3; do render_svg "C0$i.svg" "C0$i.mp4" $(($i*40+400)); done
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