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https://github.com/sbrow/nu-ffmpeg.git
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42 lines
1.4 KiB
Nu
Executable File
42 lines
1.4 KiB
Nu
Executable File
#!/usr/bin/env nu
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use ffmpeg.nu;
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use filters.nu *;
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use filters.nu; # overlay filter can't be used with a * immport
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def main [] {
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# ffmpeg -i INPUT -filter_complex "split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2" OUTPUT
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(
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ffmpeg cmd ['INPUT'] ['OUTPUT']
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| split ['main' 'tmp']
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| ffmpeg filterchain { crop --height 'ih/2' -i ['tmp'] | vflip ['flip'] }
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| filters overlay -i ['main' 'flip'] -x 0 -y 'H/2'
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| ffmpeg run --dry-run
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)
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# ffprobe 'https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4'
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# ffprobe 'https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4' | streams video
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# Re-encode the video to 30fps
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#(
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# command ['https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4']
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# | fps 30
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# | command to-args
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# | ['ffmpeg', ...$in]
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#)
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# Re-encode the video to 30fps, specifying inputs and outputs
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# (
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# ffmpeg cmd ['https://sample-videos.com/video321/mp4/720/big_buck_bunny_720p_1mb.mp4']
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# | filterchain ['0'] { fps 30 } ['video']
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# | command to-args
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# | ['ffmpeg', ...$in]
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# )
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#(ffmpeg cmd ['INPUT'] ['OUTPUT'] | fps 25 | loop 2 1 | get filters | to nuon);
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#ffmpeg cmd ['INPUT'] ['OUTPUT'] | ffmpeg filterchain ['in'] ['out'] { fps 25 | loop 2 1 } | ffmpeg cmd to-args
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#ffmpeg cmd ['INPUT'] ['OUTPUT'] | ffmpeg filterchain { fps 25 -i ['in'] | loop 2 1 -o ['out'] } | ffmpeg cmd to-args
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}
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