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Batch download YouTube videos from the command line #
youtube-dl 2010.04.04: Written in Python; public domain license; excellent documentation; runs under *nix, OS X, Windows; works with latest YouTube changes. First attempt to batch download in bash returned an error:
$ youtube-dl.sh -o %(title)s.%(ext)s --batch-file urls.txt --best-quality --no-overwrites
-bash: syntax error near unexpected token `('
Just had to enclose the output template in single quotation marks:
$ youtube-dl.sh -o '%(title)s.%(ext)s' --batch-file urls.txt --best-quality --no-overwrites
The URLs for urls.txt were collected from a YouTube playlist webpage like so:
$ grep -o '/watch?v=.\{11\}' source.htm | sed 's/^/http:\/\/youtube.com/' | uniq > urls.txt
with sed prepending http://youtube.com to grep's output, and uniq culling the duplicates.

UPDATE: To specify the desired quality format, use -f #, where # is one of the format values shown in the first row below:

fmt value 5 6 34 35 18 22 37 38 83 82 85 84 43 44 45 46 100 101 46 102 13 17
Default container FLV MP4 WebM 3GP
Video Encoding Sorenson H.263 MPEG-4 AVC (H.264) VP8 MPEG-4 Visual
Profile – Main Baseline High 3D – 3D –
Resolution progressive 224p 270p 360p 480p 360p 720p 1080p 2304p 240p 360p 520p 720p 360p 480p 720p 1080p 360p 480p 540p 720p –
Resolution VGA WQVGA HVGA nHD FWVGA nHD WXGA WUXGA HXGA – nHD FWVGA WXGA WUXGA – –
Max width (pixels) 400 480 640 854 640 1280 1920 4096 854 640 1920 1280 640 854 1280 1920 640 854 1920 1280 176
Max height (pixels) 240 270 360 480 360 720 1080 3072 240 360 520 720 360 480 720 1080 360 480 540 720 144
Bitrate (Mbit/s) 0.25 0.8 0.5 0.8–1 0.5 2–2.9 3–4.3 3.5–5 0.5 2-2.9 0.5 1 2 – – 0.5 2
Audio Encoding MP3 AAC Vorbis AAC
Channels 1–2 2 (stereo) 1
Sampling rate (Hz) 22050 44100 22050
Bitrate (kbit/s) 64 128 96 152 96 152 128 192 128 192 –

(Above table is from Wikipedia's YouTube entry)

/nix | Apr 11, 2010

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