User:E.zn/prototyping3: Difference between revisions

From XPUB & Lens-Based wiki
No edit summary
No edit summary
 
(15 intermediate revisions by the same user not shown)
Line 1: Line 1:
<div style="font-family:monospace; font-size:13.5px">
<div style="font-family:monospace; font-size:13.5px">
<br>
:__ [[Implicancies Channels and Tools]]
:__ [https://www.hamvocke.com/blog/a-quick-and-easy-guide-to-tmux/ A Quick and Easy Guide to tmux]
:__ [[Command-line podcasts]]
:__ [[Angeliki/Grad_Scripts]]
<br>
----
<br>
Reload [override cache] -- Firefox
<pre>
Ctrl + Shift + r
</pre>
<br>
----
<br>
Convert mp4 to mp3
Convert mp4 to mp3
<pre>
<pre>
Line 8: Line 23:
mv <filename>.mp3 <newname>.mp3
mv <filename>.mp3 <newname>.mp3
</pre>
</pre>
Scaling + preserving aspect ratio
<pre>
ffmpeg -i Deep_Lab_Exc.mp4 -filter:v scale=472:-1 -c:a copy Deep_Lab_Excerpt.mp4
</pre>
<pre>
ffmpeg -i <x>.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=increase,crop=1920:1080" <xx>.mp4
</pre>
Resizing
<pre>
ffmpeg -i input.avi -s 720x480 -c:a copy output.mkv
</pre>
Cutting out a video excerpt [118 seconds starting at 54:06]
<pre>
ffmpeg -i Soleil_O.avi -c:av copy -ss 00:54:06 -t 118 Soleil_O_Excerpt.mp4
</pre>
[[File:ffmpeg_soleil_no.png|700px]]
<br>
----
<br>
[[Tmux]] // [[Icecast]] // [[Liquidsoap]] // [[Recording computer playback]] // [[RSS feeds]]
<br>
<br>
Make a first playlist:
<br>Make a first playlist:
<pre>
<pre>
cd /srv/radio
cd /srv/radio
Line 46: Line 81:
<br>To detach from tmux, leaving liquidsoap [and the stream] running
<br>To detach from tmux, leaving liquidsoap [and the stream] running
<pre>
<pre>
Ctrl-b  
Ctrl + b  
d  
d
</pre>
</pre>
Listen to the program: http://echo.lurk.org:999/radioimplicancies.mp3  
Listen to the program: http://echo.lurk.org:999/radioimplicancies.mp3  

Latest revision as of 20:40, 29 May 2020


__ Implicancies Channels and Tools
__ A Quick and Easy Guide to tmux
__ Command-line podcasts
__ Angeliki/Grad_Scripts




Reload [override cache] -- Firefox

Ctrl + Shift + r




Convert mp4 to mp3

ffmpeg -i <filename>.mp4 <filename>.mp3

Rename file

mv <filename>.mp3 <newname>.mp3

Scaling + preserving aspect ratio

ffmpeg -i Deep_Lab_Exc.mp4 -filter:v scale=472:-1 -c:a copy Deep_Lab_Excerpt.mp4
ffmpeg -i <x>.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=increase,crop=1920:1080" <xx>.mp4

Resizing

ffmpeg -i input.avi -s 720x480 -c:a copy output.mkv

Cutting out a video excerpt [118 seconds starting at 54:06]

ffmpeg -i Soleil_O.avi -c:av copy -ss 00:54:06 -t 118 Soleil_O_Excerpt.mp4

Ffmpeg soleil no.png



Tmux // Icecast // Liquidsoap // Recording computer playback // RSS feeds

Make a first playlist:

cd /srv/radio
ls /var/www/html/*.mp3 >> playlist.m3u

Edit Playlist

nano playlist.m3u 

Playlist is here: /srv/radio/playlist.m3u
Bash script for liquisdsoap: playlist.sh

liquidsoap \
  'output.icecast(%vorbis,
     host = "echo.lurk.org", port = 999,
     password = "<pwd>", mount = "radioimplicancies.mp3",
     mksafe(playlist("playlist.m3u")))'

The resulting program is here: http://echo.lurk.org:999/radioimplicancies.mp3
Run the playlist, via icecast on Lurk
Start a "tmux session", make it shareable...

tmux -S /tmp/radio new -s radio
chgrp publicweb /tmp/radio

For others to be able to watch this terminal

tmux -S /tmp/radio attach -t radio -r

Start the stream

bash playlist.sh

Radioimplicancies01.png

To detach from tmux, leaving liquidsoap [and the stream] running

Ctrl + b 
d

Listen to the program: http://echo.lurk.org:999/radioimplicancies.mp3