Go to advanced search

by tomexx
Wed Oct 16, 2019 4:23 pm
Forum: General discussion
Topic: Display lxterminal at specific screen location
Replies: 2
Views: 731

Display lxterminal at specific screen location

Hi, I'm using a desktop shortcut that opens mplayer in a lxterminal like this: [Desktop Entry] Type=Application Name=Webcam Comment= Exec=lxterminal -e mplayer tv:// -tv driver=v4l2:width=640:device=/dev/video0:fps=20:outfmt=yuy2 –geometry 50:50 -xy 960 Terminal=false Hidden=false The terminal start...
by tomexx
Wed Oct 16, 2019 3:15 pm
Forum: General discussion
Topic: Unable to display 2 feeds from two USB cams on PI 4
Replies: 7
Views: 635

Re: Unable to display 2 feeds from two USB cams on PI 4

Sorry 6by9, missed your last part of the post. My PI4 has only 2GB.

Thanks,
Tom
by tomexx
Wed Oct 16, 2019 3:08 pm
Forum: General discussion
Topic: Unable to display 2 feeds from two USB cams on PI 4
Replies: 7
Views: 635

Re: Unable to display 2 feeds from two USB cams on PI 4

Thanks for the replays guys. * I haven't posted lsusb -v and dmesg is because I'm typing this on a PC, my pi is right beside me on another monitor (no internet there). * The reason I had to change gpu_mem back to 256 is because the pi failed to boot with gpu_mem=804. Any way, I found a workaround th...
by tomexx
Wed Oct 16, 2019 2:20 pm
Forum: General discussion
Topic: Unable to display 2 feeds from two USB cams on PI 4
Replies: 7
Views: 635

Re: Unable to display 2 feeds from two USB cams on PI 4

OK, fixed the boot problem by inserting the SD card to a PC and modifying \boot\config.txt gpu_mem=256
System works now.

However still have the problem of max resolution of 480 when running both camera feeds.

Thanks,
Tom
by tomexx
Wed Oct 16, 2019 2:05 pm
Forum: General discussion
Topic: Unable to display 2 feeds from two USB cams on PI 4
Replies: 7
Views: 635

Re: Unable to display 2 feeds from two USB cams on PI 4

Update: They're both Logitec C920. Worked perfectly on PI 3. I was able to run them both at 960x480 wide screen side by side. I replaced one of the cameras with an identical one and I can now run both feeds at LOWER RESOLUTION ONLY. I can run one at the screen size of 960 wide, the other one can onl...
by tomexx
Wed Oct 16, 2019 12:51 pm
Forum: General discussion
Topic: Unable to display 2 feeds from two USB cams on PI 4
Replies: 7
Views: 635

Unable to display 2 feeds from two USB cams on PI 4

Hi, All I want is to run 2 instances of mplayer in two terminal windows showing two streams from two USB cameras. This is working on PI 3B but I can not get it to work on PI 4B. Setup: - 2 Logitech USB cameras connected to two USB ports on the pi - mplayer - two terminal windows open terminal 1 : $ ...
by tomexx
Fri Sep 27, 2019 6:22 pm
Forum: Camera board
Topic: Can Mplayer display a feed from 2 webcams?
Replies: 10
Views: 1122

Re: Can Mplayer display a feed from 2 webcams?

I'm starting both webcam streams automatically on boot using this: nano ~/.config/autostart/webcam.desktop [Desktop Entry] Type=Application Name=Webcam Comment= Exec=lxterminal -e mplayer tv:// -tv driver=v4l2:width=960:device=/dev/video0:fps=20:outfmt=yuy2 –geometry 50:50 Terminal=false Hidden=fals...
by tomexx
Fri Sep 27, 2019 1:04 pm
Forum: Camera board
Topic: Can Mplayer display a feed from 2 webcams?
Replies: 10
Views: 1122

Re: Can Mplayer display a feed from 2 webcams?

It works, thanks HermannSW!

I've been trying to run the mplayers from two terminals as /video0 & /video1.
However /video1 didn't work.

Question: Why is that and will the cameras always work as /video0 & /video2 even after disconnecting them and reconnecting?

Thanks,
Tom
by tomexx
Thu Sep 26, 2019 6:13 pm
Forum: Camera board
Topic: Can Mplayer display a feed from 2 webcams?
Replies: 10
Views: 1122

Can Mplayer display a feed from 2 webcams?

I finally managed to show a local feed from a USB webcam on my Pi 3 using Mplayer. No network, no recording, just play directly from webcam to the HDMI monitor. The frame rate is very good compared to other ways I tried so I'd like to stick with Mplayer if possible. mplayer tv:// -tv driver=v4l2:wid...
by tomexx
Thu Sep 26, 2019 3:50 pm
Forum: Camera board
Topic: Pi 3 + 2 USB cameras. Local display on monitor only (no network)
Replies: 4
Views: 339

Re: Pi 3 + 2 USB cameras. Local display on monitor only (no network)

I found a Mplayer that is able to display a fast stream from my usb webcam and i'm leaning to use it. I just hope Mplayer can run two web cams at the same time.

Thanks,
Tom
by tomexx
Thu Sep 26, 2019 2:51 pm
Forum: Camera board
Topic: Pi 3 + 2 USB cameras. Local display on monitor only (no network)
Replies: 4
Views: 339

Re: Pi 3 + 2 USB cameras. Local display on monitor only (no network)

Thanks HermannSW for the suggestions.
One thing I would need is at least 10+ frames per second from the cameras. I don't know if that's possible with 2 USB cameras on a PI.

Also, how do I install the gstreamer?

Thanks,
Tom
by tomexx
Wed Sep 25, 2019 7:14 pm
Forum: Camera board
Topic: Pi 3 + 2 USB cameras. Local display on monitor only (no network)
Replies: 4
Views: 339

Pi 3 + 2 USB cameras. Local display on monitor only (no network)

Hi, I have a Raspberry Pi 3 and two logitech C910 web cams. I would like to use both webcams showing live view on the monitor. No streaming over network, not recording. Just a local live view. What's the easiest way to view output of both webcams on one monitor? Which software do you guys recommend?...
by tomexx
Tue Jun 05, 2018 4:16 pm
Forum: General discussion
Topic: Antivirus for Raspberry Pi on a corporate network
Replies: 18
Views: 12488

Re: Antivirus for Raspberry Pi on a corporate network

well, if there're no other suggestions, I'll have to recommend clamAV.

Thanks,
Tomexx
by tomexx
Tue Jun 05, 2018 1:20 pm
Forum: General discussion
Topic: Antivirus for Raspberry Pi on a corporate network
Replies: 18
Views: 12488

Re: Antivirus for Raspberry Pi on a corporate network

thanks, clamAV seem to come up pretty often in my searches.
by tomexx
Tue Jun 05, 2018 1:06 pm
Forum: General discussion
Topic: Antivirus for Raspberry Pi on a corporate network
Replies: 18
Views: 12488

Re: Antivirus for Raspberry Pi on a corporate network

thanks i486, used to have a 486DX running at super speed of 40Mhz... yes, I'm that old. ;) I did search on different linux A/Vs but was hoping that someone here had an experience of running one on a Pi. Something that will make IT happy but will not slow down my cpu too much. so far i found clamAV, ...
by tomexx
Tue Jun 05, 2018 12:51 pm
Forum: General discussion
Topic: Antivirus for Raspberry Pi on a corporate network
Replies: 18
Views: 12488

Antivirus for Raspberry Pi on a corporate network

Hi, Need a good antivirus commendation to be used on a Pi 3 in a corporate environment mostly running windows. ...and no, answers like "Linux doesn't get viruses" or "you don't need one" etc are not really helpful since I have to sell this to the IT department that wants antiviru...
by tomexx
Tue Jul 08, 2014 3:09 pm
Forum: General discussion
Topic: Timelapse with RaspberryPi camera (tornado at 1:23?)
Replies: 2
Views: 987

Re: Timelapse with RaspberryPi camera (tornado at 1:23?)

Thanks.
Maybe not a tornado, although I hear they're pretty common but most are weak and don't touch down.

Tom
by tomexx
Mon Jul 07, 2014 4:52 pm
Forum: General discussion
Topic: Timelapse with RaspberryPi camera (tornado at 1:23?)
Replies: 2
Views: 987

Timelapse with RaspberryPi camera (tornado at 1:23?)

Hi, Here's a timelapse video shot from my window on July 3rd in Kitchener, ON, Canada using a raspberry pi camera and a little program I wrote for controlling it. 9,500 pictures were taken at 2 second intervals for 14 hours compressed to 2 and a half minutes and played at 60fps. What makes this inte...
by tomexx
Fri May 09, 2014 4:23 pm
Forum: General discussion
Topic: Format SD card on Linux, by fully erasing NAND content.
Replies: 6
Views: 4326

Re: Format SD card on Linux, by fully erasing NAND content.

Have you seen a problem caused by uneven wear on an SD card? Why would you even worry about that?
Even the fast cards are inexpensive and you have an option to back them up, so that if something goes wrong, you can bring the image back.
Just trying to simplify your life :P
Tomexx
by tomexx
Thu Apr 03, 2014 12:09 pm
Forum: General discussion
Topic: New Website
Replies: 94
Views: 38916

Re: New Website

Not a big fan of the home page retro look. The new layout might be more user friendly but is not very attractive IMO. I'd like to see the menu expanded to keep useful links in one place where people expect them (a nice drop down perhaps). The whole top part just reminds me to much of the windows 8 t...
by tomexx
Thu Mar 06, 2014 2:30 pm
Forum: Beginners
Topic: Do I need to mount USB drive when used in the X environment?
Replies: 1
Views: 515

Do I need to mount USB drive when used in the X environment?

I used to boot to prompt and had to mount the USB stick before I could use it. I'm now booting straight to desktop and when running df command, I noticed that when the USB stick is plugged in, there is already /dev/sda1 pointing to /media/D0CE-52AC I can run a command like "cp *.jpg /media/D0CE...
by tomexx
Wed Mar 05, 2014 5:45 pm
Forum: Troubleshooting
Topic: 2.8" PITFT screen blank
Replies: 2
Views: 2362

Re: 2.8" PITFT screen blank

All good now.
Found an hdmi monitor and was able to use it to run raspi-config and set boot to command prompt option. Upon rebooting my PITFT got the signal like before.

Thansk,
TOm
by tomexx
Wed Mar 05, 2014 5:01 pm
Forum: Troubleshooting
Topic: 2.8" PITFT screen blank
Replies: 2
Views: 2362

2.8" PITFT screen blank

Hi, I've been playing around with the 2.8" PITFT touch screen from Adafruit. Got it to work as per instructions. Works reasonably well for what I need. Then I wanted to boot to desktop so I run raspi-config to set that option. Now, my screen is blank (all black). Turns out this will not work on...
by tomexx
Tue Feb 25, 2014 5:29 pm
Forum: Graphics, sound and multimedia
Topic: How to switch video output between SPI and HDMI
Replies: 1
Views: 1184

How to switch video output between SPI and HDMI

I've got the PITFT touch screen display from Adafruit and got it to work. Now I'd like to write some "windows" programs using TKinter and here's the problem: I need to be able to develop the programs using HDMI monitor but then run it on the TFT screen. How do I switch the video output bet...
by tomexx
Thu Dec 05, 2013 1:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: PITFT - $35 2.8" plug in touchscreen display for the pi
Replies: 0
Views: 737

PITFT - $35 2.8" plug in touchscreen display for the pi

About to be released by Adafruit, this may be very useful. Only 320x240 but the text looks pretty good on it. I'm excited.

http://www.adafruit.com/products/1601

Tom

Go to advanced search