[Interest] MEDIA_ERROR_LOG_ENTRY PIPELINE_ERROR DEMUXER_ERROR_COULD_NOT_OPEN?

[Roland Hughes]

All,

Encountered an oddity when trying to move an existing application
forward from 5.4.2 and Ubuntu 15.04 32-bit to Mate version of Ubuntu
18.04 32-bit using Qt 5.11.2 built from source.

libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
[1:15:1012/142653.891929:ERROR:render_media_log.cc(30)] MediaEvent:
MEDIA_ERROR_LOG_ENTRY {"error":"FFmpegDemuxer: open context failed"}
[1:1:1012/142653.977065:ERROR:render_media_log.cc(30)] MediaEvent:
PIPELINE_ERROR DEMUXER_ERROR_COULD_NOT_OPEN
"Load finished"
Error reading shared library list entry at 0xffffca10
Error reading shared library list entry at 0x160

Not worried about the libpng stuff and the last two lines appear to be
part of a known QtCreator bug hanging around since 2015. I'm asking
about the chrome browser related lines. It appears a recent chromium
release pooched this.

https://unix.stackexchange.com/questions/454705/chromium-ffmpegdemuxer-open-context-failed-when-playing-audio


Is there a work around with 5.11? If not, how far back do I have to go
to (all the way back to 5.4.2?) in order to get around this bug?

I'm going to roll back to a pre-2015 QtCreator to get around the "Error
reading" since that bug appears to have a long and happy life.

https://stackoverflow.com/questions/26163788/qt5-c-generating-corrupted-shared-library-list-error-during-debug


Thanks,

Roland

---
Roland Hughes, President
Logikal Solutions
(630)-205-1593 - cell
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com

[r***@logikalsolutions.com]

At one point Intel had the "Big Brother" ID.

https://www.zdnet.com/article/intel-piii-is-big-brother-inside/

Which is pretty much why what you are looking for doesn't exist
(publicly) anymore. Lots of theories and stories in the dark corners
of the world though.

TRADITIONALLY, what you want to do has always been accomplished via a
dongle for work/business machines. During the VAX 11 days this was a
25-pin RS-232 dongle with burnt in software that would see a special
escape sequence sent to the console and respond with a burnt in value.
There are still companies providing such solutions.

https://www.keylok.com/products

If ALL of your systems have EFI instead of BIOS you could read up on the specs

http://wiki.phoenix.com/wiki/index.php/EFI_FILE_PROTOCOL

and figure out how to park a hidden one line text file out there. If
the file exists, have the software refuse to install. Don't
automatically remove the file as part of the un-install either.

I was hoping some device id was existing, but I will go with android id and
make a platform function, with a TODO for the iOS one and trying to figure
out to cross the bridge when I get there.

--
Roland Hughes, President
Logikal Solutions
[phone]

http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us

[Thiago Macieira]

Post by r***@logikalsolutions.com
At one point Intel had the "Big Brother" ID.
https://www.zdnet.com/article/intel-piii-is-big-brother-inside/

See also https://en.wikipedia.org/wiki/Ship_of_Theseus.

Any HW ID you can use in a computer is wrong. If you used the processor's
serial number and someone replaced the processor, is it the same computer? If
you used the MAC address on the wired Ethernet, but that got replaced with a
faster card, is it the same computer? And so on.

That is, if you can take all the parts from the old computer, replacing them
one at a time with new parts, is it the same computer? And if you do that, and
then build a computer out of all the parts you've removed, is the other
computer a new one or the old one? Hence the Wikipedia link.

This also applies to software: if you use the UUID of the filesystem but
reformat, is it the same computer? If you use /etc/machine-id but erase that
file (so it gets regenerated on the next boot), is it the same computer?