27 lines
618 B
Bash
Executable file
27 lines
618 B
Bash
Executable file
#!/bin/busybox ash
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set -euo pipefail
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rm C*.mp4 || true
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function render_clip() {
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local c0 c1 freq out
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c0="$1"
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c1="$2"
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freq="$3"
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out="$4"
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ffmpeg -hide_banner -vaapi_device /dev/dri/renderD128 \
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-filter_complex "
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gradients=s=1920x1080:c0=$c0:c1=$c1:d=4:x0=480:y0=540:x1=1440:y1=540,
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format=nv12,hwupload[v];
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aevalsrc=sin($freq*2*PI*t):s=48000,pan=stereo|c0=c0|c1=c0[a]
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" \
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-map "[v]" -map "[a]" \
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-c:v h264_vaapi -r 50 -t 4 \
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-c:a aac -b:a 128000 \
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"$out"
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}
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render_clip '#0000FF' '#FF0000' 400 C01.mp4
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render_clip '#00FF00' '#0000FF' 440 C02.mp4
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render_clip '#FF0000' '#00FF00' 480 C03.mp4
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