68 lines
1.6 KiB
Markdown
68 lines
1.6 KiB
Markdown
+++
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template = 'custom/blog-post.html'
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title = 'how to download music from youtube + thumbnail'
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description = 'a short small guide on how to download music from youtube, preserving thumbnail'
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date = '2024-08-22'
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slug = 'download-music-from-yt'
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year = 2024
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month = 8
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day = 22
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lang = 'en'
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[extra]
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author = 'b1ek <me@blek.codes>'
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+++
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# let's get to the point.
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you need to have `yt-dlp` and `ffmpeg` installed, `magick` and `lame` for setting the mp3 cover.
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`yt-dlp` has the `-x` option, which automatically extracts the audio with ffmpeg. to specify the file format, use `--audio-format` (mp3, aac, etc):
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```
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yt-dlp https://youtu.be/oLnq2SdZvQs -x --audio-format mp3 -o flying_north.mp3
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```
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as you can see, the thumbnail is not preserved by `yt-dlp`:
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<img src='/blog-image/yt-music-no-thumb.png' />
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to get the thumbnail, do:
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```
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curl https://i.ytimg.com/vi_webp/$VIDEO_ID/maxresdefault.webp -o file.webp
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```
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to convert it to JPEG + crop it to 1:1 aspect ratio:
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```
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magick convert -crop 1:1 -gravity center file.{webp,jpeg}
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```
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and the last thing, to embed it inside the `.mp3`:
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```
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lame --ti file.jpeg flying_north.mp3
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mv flying_north.mp3.mp3 flying_north.mp3 # there's a good chance `lame` will export the file to `FILENAME.mp3.mp3`
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```
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so, basically it could be collapsed down to a bash script:
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```bash
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#!/usr/bin/env bash
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VIDEO_ID=oLnq2SdZvQs
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filename=file.mp3
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cover=$(mktemp)
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yt-dlp https://youtu.be/$VIDEO_ID -x --audio-format mp3 -o $filename
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curl https://i.ytimg.com/vi_webp/$VIDEO_ID/maxresdefault.webp -o $cover
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lame --ti $cover $filename
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```
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and, yay! it works
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<img src='/blog-image/yt-music-works-in-amberol.png' />
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