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libjpeg-turbo running or not running?
Posted: Thu Nov 18, 2010 2:16 am
by Yamanipanuchi
I compiled libjpeg-turbo and ran make install, I was wondering if anyone out there knew how I can confirm its work?
Doesnt seem my CPU usage dropped so im guessing its not being used.
I ran 'export LD_LIBRARY_PATH=/opt/libjpeg-turbo/lib64'
And I verified this is where the software is.
Posted: Thu Nov 18, 2010 4:13 am
by DREMA
Backup and replace the libjpeg sym links located on /usr/lib and /usr/lib64 with the ones on /opt/libjpeg-turbo/lib, then reboot and see if there are any changes.
Posted: Thu Nov 18, 2010 4:20 am
by Yamanipanuchi
Doesnt look like I have sym links. Im running Ubuntu 10.10 server.
Posted: Thu Nov 18, 2010 4:46 am
by Yamanipanuchi
Figured it out... Thanks! Once you said sym link it got me to where I needed.
Noticeable improvement about 1/2 the CPU from before.
# ls -l /usr/lib/libjpeg.so.62
lrwxrwxrwx 1 root root 17 2010-11-12 12:35 /usr/lib/libjpeg.so.62 -> libjpeg.so.62.0.0
# rm -rf /usr/lib/libjpeg.so.62
# ln -s /opt/libjpeg-turbo/lib/libjpeg.so.62.0.0 /usr/lib/libjpeg.so.62
http://foss-boss.blogspot.com/2010/11/s ... cloud.html
Posted: Thu Nov 18, 2010 8:40 am
by DREMA
Great you got it. Yeah there's a big improvement on system load, also its supposed the version 1.1 will bring full libjpeg8 compatibility so stay tuned.
Posted: Thu Nov 18, 2010 9:44 am
by Pada
This library would be pretty useless once:
1) your video cameras feeds ZoneMinder with MPEG videos, and not M-JPEG
2) ZMA stores the events as x264 video files, and not JPEG sequences
3) ZMS streams in MPEG format
I really can't wait for warmcat's x264 contribution to be accepted and included in the latest revisions of ZM 1.24.2
Posted: Sat Dec 11, 2010 7:57 am
by albertpaul68
I'm not familiar with that specific card, but am with the chipset. What motherboard are you using the card with, there are a few known to cause irratic behavior or just not work at all.
Even though it is being picked up, you will still need to tell it that there are 4 channels there.
add the following to /etc/modprobe.conf
options bttv card=77
You can access the cameras with these settings.
/dev/video0 Channel: 0-3
I never recommend viewing the cameras directly from the server but use the web interface on another computer. If using IE to view you will have to install a java file on the server it's self.
Posted: Sat Dec 11, 2010 3:23 pm
by MrEvoMan
Easy way to check for sure if it is in use:
> lsof | grep jpeg
Posted: Sat Dec 11, 2010 10:56 pm
by PacoLM
Hi,
Off-topic of this topic....do you know if it's possible to get the libjpegturbo working in a armv5tel architecture microprocessor???
Thanks in advance,
PacoLM