Category: Multimedia

v1.2 v1   especially in those lock down corona pandemic isolation times… users want to share family pictures to stay in touch. but how to share them in a non-privacy intrusive way? probably it would be best (of course) to […]

meta infos in picture.jpg picture.tiff picture.gif (according to Wiki not, but scroll down for an example) but also movie.avi … can contain quiet a lot of sensitive data: what date the picture was taken with what camera/phone (Samsung Galaxy S3 […]

# should work as simple as ffmpeg -i “input.mkv” “output.mp4” # tested on hostnamectl; Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-13-amd64 Architecture: x86-64 ffmpeg -version ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 […]

ffmpeg / avconv is pretty nice. it can even do mp4 to gif conversion! 🙂 so what the user can do is: use SimpleScreenRecorder, to record a fixed rectangle of the screen to mp4 and then use ffmpeg / avconv […]

recompressing mobile phone videos can save significant amount of (precious ssd) disk space. it is very cpu intense – so either bring massive amounts of cpu power or massive amounts of runtime 🙂 on 4x threads Core(TM) i5-4200U CPU the […]

some jpgs are badly compressed, taking 5-10MBytes each! a little nifty cool tool let’s you batch recompress WARNING! Always test things out before applying it to your original data! # become root su – root # install jpegoptim apt install […]

while not officially supported no drivers here: https://www.wacom.com/en-us/support/bamboo-support works out of the box on CentOS7/Rhel7, Kernel 4.15.9 THIS WORKS ABSOLUTELY INCREDIBLE 🙂 THANKS ALL INVOLVED! # what os do i have? hostnamectl Operating System: CentOS Linux 7 (Core) CPE OS […]

1. install ffmpeg or avconv (debian alternative) 2. put all *.ts* files in one folder (they should have the same encoding, resolution etc. etc.) 3. and while you are in this directory fire this line: ffmpeg -i “concat:$(ls -1 *.ts* […]

Brother 9460 CDN is a reliable old Brother LAN enabled Multifunction (MFC, Print, Scan, Fax) device. tested on/with: dell laptop E4310 + debian linux 32bit + brother 9460 cdn connected via LAN root@DebianLaptop:~# hostnamectl Static hostname: DebianLaptop Icon name: computer-laptop […]

the hardware: a webcam that is supported out of the box with most linux distros is the Logitech HD Pro Webcam C920 it has also HD resolution and stereo microphone. worth the investment if you do a lot of online […]

interesting but untested app under CentOS MATE Gnome2 it was successfully tested with a Brother 9460 CDN under Debian 8. Brother is shipping it’s own brsane config tool. this should work for Ubuntu as well. https://launchpad.net/simple-scan epson via usb: if […]

to play sound from a script/bash/command line: there are multiple possibilities… hostnamectl; # tested on Static hostname: DebianLaptop Icon name: computer-laptop Operating System: Debian GNU/Linux 9 (stretch) Kernel: Linux 4.9.0-11-amd64 Architecture: x86-64 # paplay seems to be part of the […]

it is as easy as: dd if=/dev/cdrom of=~/cdrom_image.iso in my case the dvd-drive was sr0 not cdrom. dd if=/dev/sr0 of=/mnt/sda4/DVD/filename.iso # to identify your dvd-drive you can use: inxi -d; # inxi = Command line system information script for console […]

works like this: # tested with uname -a Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt25-2+deb8u3 (2016-07-02) i686 GNU/Linux cat /etc/debian_version 8.5 # compile ffmpeg from source apt-get -y install autoconf automake build-essential libass-dev libfreetype6-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev […]

Gnome2 MATE Desktop comes with pretty cool Cosmos background slideshow. in theory it should be possible to put more pictures into it… just search for “cosmos” on yandex.ru or any other search engine. space grounds: MATE Gnome2 comes with nice space […]

All GUI programs are based/use streamripper. no gui/bash/terminal version: hostnamectl; # tested with Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-8-amd64 Architecture: x86-64 su – root; # become root apt update; apt install streamripper; Ctrl+D; # logoff root # […]

usually iphones/smartphones take pictures with 2-3-4-5MByte which can fill your harddisk/webserver pretty fast. It is wiser to shrink them down before upload. While under Windows i would recommend you http://www.irfanview.com/ Under Linux you can do that with ease 😀 apt-get […]

If you insert an copy-protected DVD into Linux Debian, it won’t play. if you run: dmesg [ 23.698945] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 23.698948] sr 1:0:0:0: [sr0] [ 23.698950] Sense Key : Illegal Request [current] [ 23.698955] sr 1:0:0:0: [sr0] [ […]

installing ffmpeg on debian is rather tricky (you will need to compile from source). under CentOS7 it is easy yum install ffmpeg and you can substitute avconv command with ffmpeg and the script just works the same. thanks to all […]

It’s as simple as cool as linux… the “player” software VLC is also a recorder or a streaming-station 😀 you can try to automate this process: This one-liner worked for me, with audio and video: cvlc v4l2:// :input-slave=alsa:// :v4l-vdev="/dev/video0" :v4l-norm=3 […]

tested on: Linux laptop 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt20-1+deb8u2 (2016-01-02) i686 GNU/Linux update: 2019-01: also tested on hostnamectl # Operating System: CentOS Linux 7 (Core) # CPE OS Name: cpe:/o:centos:centos:7 # Architecture: x86-64 if using one core is enough: # […]

Linux: Asunder what is CDEx for windows, is Asunder for linux (Debian/Ubuntu) an excellent tool to backpu your valuable CDs as OGG or MP3. setup is easy and you can run it as non-root user su; apt update; apt install […]

Howtos & Tutorials: https://www.youtube.com/results?search_query=how+to+edit+videos+in+blender “I have found my new, open source video editor: Blender! It’s not Avid, FCP, or Premiere, but it’s more than that. It’s a true suite of tools that I would say can go head to head […]

you will need to install ffmpeg first! 😀 (which can be cumbersome) 1. use vokoscreen: http://www.kohaupt-online.de/hp/ THANKS A LOT Michael Kohaupt 🙂 Rock steady. install procedure is a little cumbersome… you might need to install ffmpeg first. # this was […]

UPDATE: 2018-12: Debian 9.5 now comes with “simplescreenrecorder” (official website) in the repository: AND IT WORKS GREAT! 🙂 IT EVEN RECORDS THE COMPUTER’S AUDIO! X-D NICE JOB! how to install it: # tested on # Operating System: Debian GNU/Linux 9 […]