Search found 377 matches
- Wed Jun 19, 2019 4:34 pm
- Forum: Knowledge Base
- Topic: Video per-frame integrity check - verifying losslessness
- Replies: 5
- Views: 18848
Option 2 for audio hashing
Keenan J. Troll also suggested some other interesting method for hashing audio - as one. Without grouping samples together. Just one hash for the whole audio block. His original command included video container structure data in the output. I've removed this by setting the output format to raw sampl...
- Wed Jun 19, 2019 4:26 pm
- Forum: Knowledge Base
- Topic: Video per-frame integrity check - verifying losslessness
- Replies: 5
- Views: 18848
Generate A+V fixity framemd5 in one command/step
Based on some inspiration and input from Keenan J. Troll, here's a recipe that does 4 things in one: Rewrap (without transcoding) to MKV Adjust (tech-)metadata here too. This is optional, but very handy. The example here shows setting interlacing flags. Generate framemd5 for video source Generate fr...
- Wed Jun 19, 2019 4:23 pm
- Forum: Knowledge Base
- Topic: FFmpeg: Filtering and streamcopy cannot be used together.
- Replies: 0
- Views: 5537
FFmpeg: Filtering and streamcopy cannot be used together.
[PROBLEM] I was trying to generate framemd5 for video and audio in one step: $ ffmpeg -i bars.mov -map 0 -c copy -flags +ildct+ilme -field_order bb rewrap.mkv \ -an -f framemd5 bars.video.framemd5 \ -vn -c:a pcm_s24le -filter_complex "asetnsamples=n=48000" -f framemd5 bars.audio.framemd5 ...
- Fri Apr 12, 2019 7:48 am
- Forum: HowTo's
- Topic: HowTo: RPi as WakeOnLAN server
- Replies: 0
- Views: 5856
HowTo: RPi as WakeOnLAN server
This is actually based on the steps described on instructables.com: Raspberry Pi As Wake on LAN Server . 1) Install "etherwake" package: $ apt install etherwake In my network, I've got all ethernet MAC IDs configured in my ISC DHCP configuration (Raspbian/Debian), so I'm using that "d...
- Mon Mar 18, 2019 6:37 pm
- Forum: Knowledge Base
- Topic: Xubuntu nvidia: 800x600px after package update
- Replies: 1
- Views: 7664
Additional error messages
Everything here is optional! In this posting, I'm just collecting issues I encountered during trying to fix this. I hope it helps others to find this thread and hopefully the above mentioned solution works for them too :D # Trying to load the module manually, after install with ubuntu's proprietary...
- Mon Mar 18, 2019 5:10 pm
- Forum: Knowledge Base
- Topic: Xubuntu nvidia: 800x600px after package update
- Replies: 1
- Views: 7664
Xubuntu nvidia: 800x600px after package update
[PROBLEM] After amost recent update of X11 and kernel packages on a Xubuntu 16.04.6 system, the graphics card setup regressed: From proper working Dualscreen (FullHD + 1280x1024 resolution) to single monitor at 800x600 pixels :shock: :? I know that a proprietary Nvidia driver was used before, but I...
- Mon Mar 18, 2019 4:59 pm
- Forum: Knowledge Base
- Topic: VLC & Nouveau driver: Black screen with sound.
- Replies: 1
- Views: 7681
"decoder profile not supported: 8"
Although audio + video works fine now in VLC, there's a warning/error message in the console in the background:
vdpau_avcodec generic error: decoder profile not supported: 8
- Mon Mar 18, 2019 4:38 pm
- Forum: Knowledge Base
- Topic: VLC & Nouveau driver: Black screen with sound.
- Replies: 1
- Views: 7681
VLC & Nouveau driver: Black screen with sound.
[PROBLEM] After switching to Nouveau drivers for an Nvidia graphics card (see below) everything seems to be working fine (including Dualscreen+offset, etc) - but VLC doesn't play any videos: Black screen. No error message (except in the console. See below). But sound is playing. Here's info about t...
- Tue Mar 05, 2019 9:20 pm
- Forum: HowTo's
- Topic: HowTo: Directory listing with ISO8601 date/time
- Replies: 0
- Views: 8480
HowTo: Directory listing with ISO8601 date/time
This HowTo explains quickly how to get the full date/time information for a directory listing in the shell. By default, "ls" on GNU/Linux (e.g. Debian, Ubuntu, etc) only gives a short view of date and time for files and folders: ls-dirlist_normal.png When a timestamp is further in the past...
- Mon Mar 04, 2019 10:11 pm
- Forum: HowTo's
- Topic: HowTo: OpenVPN through SSH tunnel
- Replies: 0
- Views: 5943
HowTo: OpenVPN through SSH tunnel
In this HowTo, I'll describe how to set up an OpenVPN connection to a server that is accessible only through an SSH port forward. This config will only create a single point-to-point connection. No subnet routing, just 2 IPs: Server + Client. The assumed scenario here is Ubuntu/Debian based and was ...
- Mon Mar 04, 2019 4:13 pm
- Forum: Knowledge Base
- Topic: Debian 9: "Unit samba.service is masked"
- Replies: 0
- Views: 4073
Debian 9: "Unit samba.service is masked"
[PROBLEM] Trying to start samba service on Debian 9 (Stretch) with systemctl: $ systemctl start samba Returns this error message: Failed to start samba.service: Unit samba.service is masked. Systemctl status gives me: ● samba.service Loaded: masked (/dev/null; bad) Active: inactive (dead) [SOLUTION...
- Sat Mar 02, 2019 5:07 am
- Forum: HowTo's
- Topic: HowTo do a quick deep hashing/fixity of subfolders
- Replies: 1
- Views: 5882
Validating with existing hashdeep textfile
Here's one way to check the current folder, with the data in the fixity textfile "MD5DEEP.md5": $ hashdeep -l -e -vvv -r -a -k MD5DEEP.md5 . Parameters: -l: Relative paths mode. Otherwise you'll only get "file moved" messages ;) -e: Estimate time. Shows a progress indicator. Must...
- Sat Mar 02, 2019 4:32 am
- Forum: Knowledge Base
- Topic: Kdenlive: "Cannot initialize Movit's GLSL manager, ..."
- Replies: 0
- Views: 3865
Kdenlive: "Cannot initialize Movit's GLSL manager, ..."
[PROBLEM] I wanted to enable GPU processing in kdenlive (on Xubuntu 16.04, 64bit), but got this error message instead: Cannot initialize Movit's GLSL manager, please disable Movit :( [SOLUTION] Haven't tried it yet, but starting kdenlive in a terminal, gave me the following information: Shortcut fo...
- Sat Mar 02, 2019 4:01 am
- Forum: HowTo's
- Topic: HowTo do a quick deep hashing/fixity of subfolders
- Replies: 1
- Views: 5882
HowTo do a quick deep hashing/fixity of subfolders
You may find or search this under "md5deep", but the command - as well as its package - was renamed/superseeded by "hashdeep". Where "md5sum" creates a textfile per folder, the command "hashdeep" can be used to create fixity information for a whole subfolder s...
- Sat Feb 23, 2019 3:11 am
- Forum: Knowledge Base
- Topic: Raspbian: "amixer: Unable to find simple control 'Master',0"
- Replies: 0
- Views: 3857
Raspbian: "amixer: Unable to find simple control 'Master',0"
[PROBLEM] On Raspbian Stretch, I'm trying to adjust the volume on the shell/commandline, using "amixer", but get the error message: amixer: Unable to find simple control 'Master',0 [SOLUTION] Thanks to post on github by user R00t8ug : okie, for raspberry pi user douban.py inside find &quo...