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

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

mp3

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
```
How To Download A YouTube Playlist And Convert It To MP3 Using youtube-dl (Command Line)

mpv

http://www.makeuseof.com/tag/terminal-alternatives-linux-desktop-apps/
http://www.makeuseof.com/tag/5-amazing-linux-video-players-for-watching-movies-and-shows/
MPV Player: A Minimalist Video Player for Linux
mpv keyboard shortcuts
https://wiki.archlinux.org/index.php/Mpv. Choosing the resolution.
Open YouTube (And More) Videos From Your Web Browser With mpv [Firefox, Chrome]. Using this is especially useful if your web browser doesn't support hardware-accelerated video playback.

sudo apt install mpv
mpv --ytdl-format="bestvideo[height<=?1080]+bestaudio/best" <URL_of_Video>

mpv --start=56:00 Some_YT_URL    # include time
mpv https://youtu.be/JlHsTd7nJW0?t=16  # embed time in the URL

ytfzf: search & play or download

https://github.com/pystardust/ytfzf
- It's useful to create an alias in ~/.bashrc e.g. alias youtube="ytfzf"
ytfzf - Search (With Thumbnails) And Play YouTube Videos From A Terminal
- Download
- Video history
- Choose the media format
- Queue multiple tracks
- Audio only
- Auto-play
- Repeat
- Playlist (not yet)

sudo apt install jq mpv fzf  # youtube-dl 
cd github
~/github$ cd ytfzf/
~/github/ytfzf$ sudo make install
~/github/ytfzf$ cd
# WARNING: The script ueberzug is installed in '/home/brb/.local/bin' which is not on PATH.
sudo apt install python3-pip
pip3 install ueberzug
export PATH=/home/brb/.local/bin:$PATH
ytfzf -t scRNA  # -t means thumbnails,  scRNA is an example of some keywords
ytfzf -d scRNA  # -d means download

$ ytfzf --version
ytfzf: 1.0.0

$ ytfzf --help
Usage: ytfzf [OPTIONS] <search-query>
  OPTIONS:
     -h, --help                           Show this help text
     -v, --version                        -v for ytfzf's version, --version for ytfzf + youtube-dl's version
     -t, --thumbnails                     Show thumbnails (requires ueberzug)
                                          Doesn't work with -H -D
     -D, --ext-menu                       Use external menu(default dmenu) instead of fzf 
     -H, --choose-from-history            Choose from history 
     -x, --clear-history                  Delete history
     -m, --audio-only   <search-query>    Audio only (for music)
     -d, --download     <search-query>    Download to current directory
     -f                 <search-query>    Show available formats before proceeding
     -a, --auto-play    <search-query>    Auto play the first result, no selector
     -r  --random-play  <search-query>    Auto play a random result, no selector
     -n, --video-count= <video-count>     To specify number of videos to select with -a or -r
     -l, --loop         <search-query>    Loop: prompt selector again after video ends
     -s                 <search-query>    After the video ends make another search 
     -L, --link-only    <search-query>    Prints the selected URL only, helpful for scripting

     --previews=       <left/right>      the side of the screen to show thumbnails
     --upload-time=     <time-range>      Time range can be one of, last-hour, today, this-week, this-month, this-year
                   You can also put the filter as it's own option eg: --today
     --upload-sort=     <sort-filter>     The filter to sort the videos can be one of, upload-date, view-count, rating
                   You can also put the filter as it's own option eg: --upload-date
     --filter-id=       <filter>          The id of the filter to use for video reults
                   A filter id can be found by going to youtube searching, filtering how you want
                   Then taking the value of the &sp= part of the url
                   Filters may not work especially when the filter sorts for non-videos
                   In addition this overrides any filter provided through options
                   Example: ytfzf --filter-id=EgJAAQ minecraft
                   This will filter by livestream

     --update                             clones the latest commit and installs it
                   on Arch ytfzf is available in the AUR
  Use - instead of <search-query> for stdin

  Option usage:
     ytfzf -fDH                           to show history using external 
                                          menu and show formats
     ytfzf -fD --choose-from-history      same as above

  Defaults can be modified through ENV variables
  Defaults:
     YTFZF_HIST=1                          0 : off history
     YTFZF_CACHE=~/.cache/ytfzf
     YTFZF_LOOP=0                          1 : loop the selection prompt
     YTFZF_PREF=''                         22: 720p,  18: 360p
     YTFZF_CUR=1                           For status bar bodules
     YTFZF_EXTMENU=' dmenu -i -l 30'
  To use rofi
     YTFZF_EXTMENU=' rofi -dmenu -fuzzy -width 1500'
     YTFZF_ENABLE_FZF_DEFAULT_OPTS=0       1 : fzf will use FZF_DEFAULT_OPTS

  For more details refer https://github.com/pystardust/ytfzf

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

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

24 of the Most Useful YouTube Keyboard Shortcuts

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

Search for Words in a YouTube Video

How to Search for Words in a YouTube Video

Biology

PCR from http://k12videos.mit.edu/academic-subject/biology/video
genetic engineer
Crash Course Biology from CrashCourse.
Google: campbell biology pdf

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

Natural sounds

How to Watch Flagged YouTube Videos Without Logging In

How to Pause Your YouTube Watch History

H How to Pause Your YouTube Watch History. Library -> History -> stacked dots icon -> History Controls -> toggle switch to Pause watch history.

How Much Money Can You Make on YouTube

How Much Money Can You Make on YouTube?

Stats for Nerds

How to Use YouTube's 'Stats for Nerds'

Youtube Music

Make Any YouTube Link Open in the YouTube Music App

Music

Crop audio

Trim audio file using start and stop times

ffmpeg -i file.mkv -ss 00:00:20 -to 00:00:40 -c copy file-2.mkv

Youtube

Contents