youtube-dl -v 'https://www.youtube.com/watch?v=jzkUUSWiM_4'

youtube-dl-2.7

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=jzkUUSWiM_4']
[debug] Encodings: locale UTF-8, fs utf-8, out None, pref UTF-8
[debug] youtube-dl version 2014.11.16
[debug] Git HEAD: ff0f8a1
[debug] Python version 2.7.8 - Darwin-14.0.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 2.2, ffprobe 2.2
[debug] Proxy map: {'http': 'http://localhost:22001/', 'https': 'http://localhost:22001/', 'no': 'localhost,127.0.0.1,.map.dev'}
[youtube] Confirming age
[youtube] jzkUUSWiM_4: Downloading webpage
[youtube] jzkUUSWiM_4: Downloading video info webpage
[youtube] jzkUUSWiM_4: Extracting video information
[youtube] jzkUUSWiM_4: Encrypted signatures detected.
[youtube] {43} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {18} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {5} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {36} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {17} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {135} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] jzkUUSWiM_4: Downloading js player vflM7pYrM
[youtube] {244} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {134} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {243} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {133} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {242} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {160} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {140} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {171} signature length 42.43, html5 player en_US-vflM7pYrM
[youtube] {135} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {244} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {134} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {243} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {133} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {242} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {160} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] {140} signature length 38.42, html5 player en_US-vflM7pYrM
[youtube] jzkUUSWiM_4: Downloading js player vflM7pYrM
[youtube] {171} signature length 40.42, html5 player en_US-vflM7pYrM
[youtube] jzkUUSWiM_4: Downloading DASH manifest
[debug] Invoking downloader on u'https://r6---sn-2apm-f5fee.googlevideo.com/videoplayback?key=yt5&ip=162.220.13.98&mm=31&fexp=907259%2C924622%2C927622%2C932404%2C943909%2C945084%2C947209%2C947215%2C948124%2C949414%2C952302%2C952605%2C952901%2C953912%2C957103%2C957105%2C957201%2C958302&mv=u&source=youtube&sparams=id%2Cip%2Cipbits%2Citag%2Cmime%2Cmm%2Cms%2Cmv%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&ms=au&sver=3&id=o-AGpoD6a1zo4f9b6eatIEDeND9ToBNscAP9JH3fw-g30z&mime=video%2Fmp4&requiressl=yes&upn=xTfTMbz9kKc&itag=18&mt=1416317249&ratebypass=yes&ipbits=0&expire=1416339112&signature=8CBA3BAA379BC50428B94941DF2F925ABAF16CAA.03C68C3E8A431B9F01A50511569C5F7D38F40756'
[download] Destination: Jan Johansson - Visa Från Utanmyra-jzkUUSWiM_4.mp4

[download]   0.0% of 6.77MiB at     ---b/s ETA Unknown ETA
[download]   0.0% of 6.77MiB at  2.62MiB/s ETA 00:02
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[download]   7.4% of 6.77MiB at 574.66KiB/s ETA 00:11
[download]  14.8% of 6.77MiB at 903.51KiB/s ETA 00:06
[download]  29.5% of 6.77MiB at  1.42MiB/s ETA 00:03
[download]  59.1% of 6.77MiB at  2.01MiB/s ETA 00:01
[download] 100.0% of 6.77MiB at  2.23MiB/s ETA 00:00
[download] 100% of 6.77MiB in 00:03