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youtube-dl 指定下載影片畫質

youtube-dl 指定下載影片畫質

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選擇畫質

youtube-dl 預設會下載最高畫質的版本,不一定是 mp4 格式

列出可下載的畫質:

youtube-dl -F https://www.youtube.com/watch?v=dQw4w9WgXcQ
[youtube] dQw4w9WgXcQ: Downloading webpage
[info] Available formats for dQw4w9WgXcQ:
format code extension resolution note
249 webm audio only tiny 46k , webm_dash container, opus @ 46k (48000Hz), 1.18MiB
250 webm audio only tiny 61k , webm_dash container, opus @ 61k (48000Hz), 1.55MiB
140 m4a audio only tiny 129k , m4a_dash container, mp4a.40.2@129k (44100Hz), 3.27MiB
251 webm audio only tiny 129k , webm_dash container, opus @129k (48000Hz), 3.28MiB
394 mp4 256x144 144p 68k , mp4_dash container, av01.0.00M.08@ 68k, 25fps, video only, 1.72MiB
160 mp4 256x144 144p 71k , mp4_dash container, avc1.4d400c@ 71k, 25fps, video only, 1.81MiB
278 webm 256x144 144p 89k , webm_dash container, vp9@ 89k, 25fps, video only, 2.27MiB
133 mp4 426x240 240p 117k , mp4_dash container, avc1.4d4015@ 117k, 25fps, video only, 2.96MiB
395 mp4 426x240 240p 134k , mp4_dash container, av01.0.00M.08@ 134k, 25fps, video only, 3.40MiB
242 webm 426x240 240p 159k , webm_dash container, vp9@ 159k, 25fps, video only, 4.02MiB
134 mp4 640x360 360p 219k , mp4_dash container, avc1.4d401e@ 219k, 25fps, video only, 5.55MiB
396 mp4 640x360 360p 262k , mp4_dash container, av01.0.01M.08@ 262k, 25fps, video only, 6.64MiB
243 webm 640x360 360p 273k , webm_dash container, vp9@ 273k, 25fps, video only, 6.92MiB
135 mp4 854x480 480p 337k , mp4_dash container, avc1.4d401e@ 337k, 25fps, video only, 8.52MiB
244 webm 854x480 480p 397k , webm_dash container, vp9@ 397k, 25fps, video only, 10.04MiB
397 mp4 854x480 480p 450k , mp4_dash container, av01.0.04M.08@ 450k, 25fps, video only, 11.38MiB
136 mp4 1280x720 720p 655k , mp4_dash container, avc1.4d401f@ 655k, 25fps, video only, 16.57MiB
247 webm 1280x720 720p 699k , webm_dash container, vp9@ 699k, 25fps, video only, 17.67MiB
398 mp4 1280x720 720p 858k , mp4_dash container, av01.0.05M.08@ 858k, 25fps, video only, 21.70MiB
399 mp4 1920x1080 1080p 1576k , mp4_dash container, av01.0.08M.08@1576k, 25fps, video only, 39.84MiB
137 mp4 1920x1080 1080p 3546k , mp4_dash container, avc1.640028@3546k, 25fps, video only, 89.64MiB
18 mp4 640x360 360p 630k , avc1.42001E, 25fps, mp4a.40.2 (44100Hz), 15.95MiB (best)

選好要下載的格式,把 format code 填入參數 -f 裡

youtube-dl -f 137 https://www.youtube.com/watch?v=dQw4w9WgXcQ

# 1920x1080 影片 + 129K音軌
# 需要先裝 ffmpeg
youtube-dl -f "137+140" https://www.youtube.com/watch?v=dQw4w9WgXcQ

如果懶得查,也可以直接指定某種影片、音樂最高品質

# 下載 MP4 格式中最高畫質,或是其他格式中的最高畫質
youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best' url

# 指定最佳畫質,但不要高於 480p
youtube-dl -f 'bestvideo[height<=480]+bestaudio/best[height<=480]' url

# 下載檔案大小小於 50M 的最高畫質影片
youtube-dl -f 'best[filesize<50M]' url

指定格式、品質時,若網站沒有會下載失敗

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本文作者:Zone Lin
本文連結:https://zonego.tw/2022/04/10/youtube-dl-quality/
版權宣告:本文採用 創用CC BY 4.0 協議進行許可
貼文內使用的封面圖大部分來自unsplash,個別圖片的連結請看封面圖來源
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