Das Werkstatt

[PROBLEM] Trying to split an insanely-wide image (>500.000px width) in 30.000px sections: $ convert video_motion.png -crop 30000 video_motion-%02d.png Throws the following error: convert: DistributedPixelCache '127.0.0.1' @ error/distribute-cache.c/ConnectPixelCacheServer/244. convert: cache resour...

[PROBLEM] While trying to install Archivematica (using ansible + vagrant + virtualbox approach), I ran into the following error: Stderr: VBoxManage: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED) VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), c...

[PROBLEM] After flashing my good old WRT54GL (v1.1) from original Linksys firmware (v4) to Tomato (1.28), I couldn't access the webinterface over https! :shock: By default, Tomato's webinterface over HTTP is disabled... :? Firefox (v71.0) refuses to connect, showing the following error message: Secu...

[PROBLEM] Installed Arduino IDE from default Ubuntu repositories (on Xubuntu 16.04.2). When I connect the Arduino (UNO R3) by USB, it doesn't show up as Device in the IDE, and the following error message is shown (in the IDE message area): java.lang.NullPointerException thrown while loading gnu.io.R...

In a new setup, the following error is thrown when trying to mount a Samba (CIFS) share from Windows 10 on Debian 9.6. mount error(112): Host is down :cry: Well, the host is definitely *up*: responds to pings and everything (from that very Debian machine). So it's gotta be something else. I suspect ...

Found this quote today on [url=http://forums.mozillazine.org/viewtopic ... &t=2045477 "The Internet"]:

"Political Correctness is simply Fascism with manners."

Hm...

Tested on CentOS 7.6.1810. (subversion 1.7.14, xinetd 2.3.15) Install the following packages: subversion xinetd 1) Create a new subversion repository in "/opt/svn/test" 2) Then, copy/paste the following contents into " /etc/xinetd.d/svnserve ": # default: on # description: Subver...

I had to give it a try. DaVinci Resolve Lite 16.0 on Xubuntu Xenial (v16.04.3). Installed using "MakeResolveDeb" (Thanks Daniel!). Resolve crashes right after trying to run it after install. The logfile "~/.local/share/DaVinciResolve/logs/ResolveDebug.txt" says: ==========[CRASH ...

If you use "diff" to compare binary files (that have the same size), it will just tell you that: Binary files A and B differ If you want to know the which bytes at which offsets differ, use the "cmp" command: $ cmp -l a.bin b.bin Without the "-l" parameter, cmp will jus...

UPDATE: After asking for input on ffmpeg-user mailing list , I was told that ffmpeg already has a built-in content hash muxer. I only knew about frame-hashing until then :shock: It's actually pretty cool! Quote Moritz Barsnick: $ ffmpeg -i input -map 0:a -c:a copy -f hash - or $ ffmpeg -i input -ma...

[PROBLEM] Trying to decode a 10 bpc (bits-per-component) FFV1 file with mencoder (pix_fmt = yuv422p10le). (On Debian 9, with mencoder installed from default repositories - version: 2:1.3.0-6. Files were created with Virtualdub2 build 43385) I get an empty output video file and the following error m...

Some optional Markdown input examples:

In the past, I've used an online Python generator for creating random text in Immanuel Kant style , every now and then. Here's how to include this so called "Kant Lipsum" text in e.g. Markdown - generated by Pandoc when rendering to an output format! :shock: 8) First, here's the LaTeX temp...

UPDATE: This functionality is actually covered by FFmpeg's built-in "-f hash" muxer , and maybe even better its 'streamhash' muxer . ---------------------- This script does the following all in a single FFmpeg command execution: Rewrap container Generate hashcode of raw uncompressed video...