Download videos

VLC

Play the video in VLC
On VLC, check Tools -> Codec information and find a URL there
Open the URL on a browser. Right click the video and choose to save the video.

The method works for youtube and vimeo videos.

Firefox/Chrome add-on

3 Easy Ways to Download YouTube Videos in Ubuntu and Other Linux Distributions

Video DownloadHelper add-on works fine when I test it on Firefox and Chrome. I need to install an app Video DownloadHelper companion app (the source code is on Github) in order to use the extension. It saves the videos to ~/dwhelper folder.

Youtube-dl

https://rg3.github.io/youtube-dl/download.html
- It is based on Python2. Ubuntu 20.04 does not include python2.
What are the Best Youtube Video Downloader for Ubuntu
The Best YouTube Downloader on Linux: youtube-dl, Minutube, ClipGrab

4 Best open source & free YouTube Downloader for Ubuntu Linux

# which youtube-dl
# sudo rm /usr/bin/youtube-dl

# Method 1.
sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o /usr/local/bin/youtube-dl
sudo chmod a+rx /usr/local/bin/youtube-dl

# Method 2.
sudo pip install --upgrade youtube_dl

# Log out and log in
youtube-dl --version
# 2019.01.02

# Download as an mp4 
youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/mp4' URL
# Download a youtube playlist
youtube-dl -f mp4 --yes-playlist URL

For videos with 1080p resolution, youtube-dl will download 720p by default. To download 1080p, see this post

# show the available resolutions
youtube-dl -F XXX
# download the desired resolution
youtube-dl -f 137+141 XXXX 
# Note the two numbers 137, 141 is case dependent. They could be 137 & 140.
youtube-dl -f 22 XXX
# if the format 22 is mp4. If I do not specify the format, the mkv file will be downloaded
# But playing mkv file tends to be stuttering with VLC.

~~This assumes Ubuntu has installed avconv; otherwise video(mp4) and audio(m4a) files will be downloaded separately.~~ To install avconv, install the libav-tools package. Note that libav-tools was replaced by ffmpeg in Ubuntu 18.04.

sudo apt-get install ffmpeg

To download mp3 from a Youtube Video (assume libav-tools or ffmpeg has been installed). See more info here.
```
youtube-dl --extract-audio --audio-format mp3 URL
```
To convert the video to mp3 format, use soundconverter
```
sudo apt-get install soundconverter
```
Play/Download youtube video using mps-youtube
```
mps-youtube
```
4k videos samples (vlc v2.1.4 cannot play), FLYING OVER NORWAY
8K videos Yellowstone National Park in 8K 60P, Peru

Convert av1 format to h264 format

This is necessary if we add videos to Plex. Convert a video to MP4 (H.264/AAC) with ffmpeg.

Use Handbrake. Converting Video Files to H.264 MP4 Format Using HandBrake on Linux

$ apt-cache show handbrake-cli
$ sudo apt-get install handbrake-cli
$ HandBrakeCLI --help
$ HandBrakeCLI -e x264 -i input.mp4 -o output.mp4

GUI

youtube-dl-gui

Learning

Tips 1: SMTube

Search and watch Youtube

Tips 2: Pennywise

Open Websites In A Floating, Borderless Window/Picture in picture

Keyboard shortcuts

Keyboard shortcuts for YouTube

j: backward 10 seconds
l: forward 10 seconds
>: Speed up the video playback rate.
<: Slow down the video playback rate.
c: captions
m: mute

Biology

Bypass any restricted youtube video without an extension

http://www.makeuseof.com/tag/bypass-restricted-youtube-video-without-extension/

7 of the Best YouTube Channels for Learning Drums

http://www.makeuseof.com/tag/best-youtube-channels-learn-drums/

Cooking

5 Unique YouTube Cooking Channels Worth Watching

How to find HDR content on YouTube

https://lifehacker.com/how-to-find-hdr-content-on-youtube-1829374364

Add YouTube Player Controls To Your Linux Desktop With browser-mpris2 (Chrome Extension)

https://www.linuxuprising.com/2018/08/add-youtube-player-controls-to-your.html

Live Stream on youtube

5 Relaxing YouTube Channels to Help You Chill Out

https://www.makeuseof.com/tag/relaxing-youtube-channels-chill-out/

How Much Money Can You Make on YouTube

How Much Money Can You Make on YouTube?

Youtube

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