Posts Tagged ‘Product’

HasciiCAM supposed to stream ASCII video over the network on GNU / Linux

Tuesday, May 22nd, 2012

Reading Time: 4minutes

Richard M. Stallman (RMS) Face portrait rendered in ASCII art from a video with hasciicam
To continue with my lately ASCII centered articles I found hasciicam
hasciicam is a program to stream ASCII video over the network on Linux and probably can be easily made working on FreeBSDtoo.

The project concept is interesting in a matter of fun (play) point of view, however not too usable as we all know ASCII character looking faces doesn't look too pretty.

Below is the Debian (Squeeze) package description:

noah:~# apt-cache show hasciicam|grep -i description -A 7
Description: (h)ascii for the masses: live video as text
Hasciicam makes it possible to have live ASCII video on the web. It
captures video from a tv card and renders it into ascii, formatting the
output into an html page with a refresh tag or in a live ASCII window or
in a simple text file as well, giving the possibility to anybody that has a
bttv card, a Linux box and a cheap modem line to show a live ASCII video
feed that can be browsable without any need for plugin, java etc.
Homepage: http://ascii.dyne.org/

On hasciicam Project webpage is it is stated as a hardware you need to have:
 

"As hardware you need to have a webcam or a videocard supported by "video 4 linux", most of the gear you can buy around should work well."

To install and test it I run:

noah:~# apt-get --yes install hasciicam

Though it is stated on the project website supposed to work display video fine with most 'linux ready' webcams, it didn't with this very standard one.

Here is the exact WebCamera model as identified to the kernel:

noah:~# dmesg|grep -i camera
[ 1.433661] usb 2-2: Product: USB2.0 Camera
[ 10.107840] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1e4e:0102)
[ 10.110660] input: USB2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb2/2-2/2-2:1.0/input/input11

By the way, I use the very same CAM daily on for Skype video calls as well as the Camera is working with no problems to save video or pictures inside Cheese

Here is the exact WebCamera model as identified to the kernel:

noah:~# dmesg|grep -i camera
[ 1.433661] usb 2-2: Product: USB2.0 Camera
[ 10.107840] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1e4e:0102)
[ 10.110660] input: USB2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb2/2-2/2-2:1.0/input/input11

The just installed deb has one binary file only /usr/bin/hasciicam. To test it with the camera I issued:

noah:~# hasciicam -d /dev/video0
HasciiCam 1.0 - (h)ascii 4 the masses! - http://ascii.dyne.org
(c)2000-2006 Denis Roio < jaromil @ dyne.org >
watch out for the (h)ASCII ROOTS

Device detected is /dev/video0
USB2.0 Camera
1 channels detected
max size w[640] h[480] - min size w[48] h[32]
Video capabilities:
VID_TYPE_CAPTURE can capture to memory
!! error in ioctl VIDIOCGMBUF: : Invalid argument

Unfortunately as you see from the output, it failed to detect the web camera model.
The exact camera besides its kernel detection naminf is a cheap external USB 2.0 (fake brand / nonanem) "universal" Web PC Camera (SUPER .3mega pixel)

For those who have a further interest in building and installing hasciicam on other Linux platforms than Debian and Ubuntu or whoever wants to look in the code check check Project webpage is. For those who are less of programmers (like me) the project is written in C programming language and uses aa-lib in order to render the video to ASCII.

On the site you will notice two totally schizophrenic looking pictures of presumably the project head developer …

hasciiart video streamed ASCII screenshot of some crazy looking guy smoking marijuanna or smth

As I read in man hasciicam manual page it's said to be able to generate ascii plain text and html files as well as directly to write the output to console, which later probably can be streamed via the network.
Pitily as it didn't detect my camera I couldn't make some testing of its network capabilities.

A Streaming of ASCII couuld be done through pushing the .html output to a webserver and setting a php or javascript to loop through and refresh the browser over the uploaded files every sec or so.

Also I assume the ASCII video output saved in plain console could be streamed via netcat or some tiny scripted perl or bash script and directly observed via a telnet or ssh connection.
One playful way I can think of checking a stored video without the use of FTP is to login via ssh and do:

$ ssh someuser@somehost
$ watch -n 1 "cat video-ascii.html"

🙂

Well something disturbing about hasciicam from a (purely Christian point of view) is it was developed by some kind of non profit organization called RastaSoft on the project website, some of its authors has written JAH BLESS.

As I didn't succeeded seeing it working, I'll be interested to hear if someone who red this article and give it a try can report the web camera model used.

How to test if USB Camera is working with Cheese on GNU / Linux

Friday, December 23rd, 2011

Reading Time: 2minutes

I just bought an USB Camera (my notebook doesn't include an embedded camera). The camera is some infamous brand chineese name Eilondo
and on the camera all that is written is SUPER USB2.0 1.3 mega pixel

I bought exactly this camera because I was said by the shop reseller that the camera works without any driver installations on Windows XP and Windows Vista

On my Debian Squeeze GNU / Linux it was detected in dmesg without any troubles, here is how the camera got detected in my kernel log :

debian:~# dmesg |tail -n 10
[25385.734932] usb 2-1: USB disconnect, address 4
[25388.905049] usb 2-1: new high speed USB device using ehci_hcd and address 5
[25389.050753] usb 2-1: New USB device found, idVendor=1e4e, idProduct=0102
[25389.050757] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[25389.050760] usb 2-1: Product: USB2.0 Camera
[25389.050762] usb 2-1: Manufacturer: Etron Technology, Inc.
[25389.050936] usb 2-1: configuration #1 chosen from 1 choice
[25389.056056] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1e4e:0102)
[25389.058242] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[25389.059113] input: USB2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/input/input26

I was troubled by the message uvcvideo: UVC non compliance – GET_DEF(PROBE) not supported. Enabling workaround. , and hence looked for an application to test if the camera can recored properly.

While checking in packages available in Software Center , I found a plenty of programs under the search keyword Camera
I however decided to test it using just one application Cheese A tool to take pictures and videos from your webcam which I've seen to be quite popular among Liunx users.
Cheese is part of GNOME Desktop, so that was another reason I decided to give it a try. I was pleasently surprised about how good these tiny but functional proggie is.

To run Cheese in GNOME I nagivated to the menus:

Applications -> Sound & Video -> Cheese Webcam Booth

Just in case if Cheese is not installed, installing it with apt:

debian:~# apt-get install cheese

Cheese has capabilities to take pictures, a consequential photos take up, as well as create Video movies.

Cheese take camera testing tool Debian GNU Linux

The program has support to apply 12 Effects / (Masks) to add some fun to the pictures or video snapshots.

Test Video Camera on Debian Linux Cheese Effects

Probably the best thing about Cheese is its simplistic interface, which for me personally is a main criterion to evaluate a program quality ;).