Linux webcam resolution

According to http://forums.adobe.com/message/2874921 the AIR team is aware of the issue of the low webcam resolution in Air on Ubuntu.
Is there any indication when a resolution will become available?
Does this problem occur on other Linux distributions as well?
I've confirmed the problem on Ubuntu 10.10 with the latest Air installer.

Hi Marcel,
Since Adobe decided not to support Linux any longer, I don't think the bug will ever be fixed.
Regards,
Bas.

Similar Messages

Linux webcam resolution in flash

Hello
I am using PartyBooth software (www.partyboothapp.com) that I purchased through adobe AIR. This is a simple application that lets you use a webcam to run a photobooth.
I have 3 cameras that are very well supported in Linux:
1) Logitech Webcam Pro 9000
2) Logitech Quickcam Vision Pro
3) Microsoft Lifecam Cinema
All 3 of these cameras work at full resolution in every linux app that I have used (including skype)
However, in this flash-based program (PartyBooth), the cameras will only work at 240x240 resolution, which is way too low to take reasonable pictures.
All 3 of these cameras are capable of HD resolutions, and again, all resolutions work in other applications! (Note: these are all UVC compliant cameras)
Is there a way to test if this is either:
A) A bug in Flash Player 10 for Linux
B) A bug in the PartyBooth applicaion
thanks for any help I can get!
Jon

I have this problem in all flash applications.
My camera uses v4l2 subsystem and UVC interface and has native resolution 640x480. In other programs (not flash, i.e. skype, guvcview) it starts to capture in 640x480 by default.
And if I start web browser (firefox or chrome) with preloading v4l1 compatibility library:
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so firefox
flash starts to capture in 640x480. So it can be used as workaround before v4l2 support in flash will be fixed.

Help with linux webcam support in an AIR application!

Hello
I am running the 32-bit edition of Ubuntu 10.04.
I recently purchased an application through AIR - PartyBooth (www.partyboothapp.com)
It is written in Adobe AIR, and is a simple program to operate a photobooth. I have 3 different webcams:
1) Logitech Webcam Pro 9000
2) Logitech Quickcam Vision Pro
3) Microsoft LifeCam Cinema
All 3 of these cameras work in every linux webcam software (including skype). They are very well supported webcams in linux.
They do work in the Partybooth application, however, the resolution is locked at 240x240 - which is way too low of a resolution to take nice pictures with. (Again, these cameras all work at full HD resolution in every other linux application that I have ever tried)

Hi Jon,
Thanks for bringing this to our attention, the AIR team is aware of this issue on Ubuntu. And we are looking into this.

How to change webcam resolution

Hi,
I have a USB device to capture HDMI sources that I use to record from my camera. The device uses UVC so it's the same as a webcam for any Windows application.
The USB can output multiple resolution from SD to HD. However, I can't seem to be able to choose the recording resolution when I use it in Adobe Premiere Elements. It always record in 720x480, although in VLC, I can use it to record in 1080p.
Right now, I can record in VLC in 1080p then import in Premiere, but I would prefer to just be able to change the webcam resolution in Premiere!
Jonathan

Jonathan
What version of Premiere Elements are you using and on what computer operating system is it running?
I have run into the same problem. There are other reports of this problem as well. I have a HD webcam that will only display as SD when used through the Premiere Elements Add Media/Webcam or WDM.
I have planned to analyze this in a blog post but have not gotten around to it yet.
Right now I do not think there is a fix other than to find that certain HD webcam that Premiere Elements will recognize as HD. That seems to be the case in this online video tutorial
https://www.youtube.com/watch?v=1XebjDAeE7M
Note at the end how the output looks 16:9 rather than 4:3. For informational rather than promotional reasons I mention that it looks like a Logitech HD Pro Webcam C92 was used in that video tutorial on the Premiere Elements 12 webcam feature.
More later.
ATR.

HP Pavilion G6-1232sl Webcam Resolution?

Hi There,
I'm trying to find out the resolution of a HP laptop I intend to buy but in all the product specifications, it never shows the max resolution of the webcam. Could someone please answer this for me please?
Laptop: HP Pavilion G6-1232sl
Thanks very much,
alannm37.

Hi @alannm37,
Thank you for visiting the HP Support Forums and Welcome. I have read about you needing the Webcam resolution for HP Pavilion G6-1232sl Notebook.
A resolution up to 1366-768 with a 16:9 wide aspect ratio HD. I suspect the ratio would 720p as it is not listed in your manual for the Webcam. Here is link to the manuals for your notebook.
Hope this is what you need.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

LINUX : Webcam mic non-functional on Toshiba Satellite T215D-S1150

I've been trying to get the webcam mic on my Toshiba Satellite T215D-S1150 notebook/netbook to work in Linux Mint 9 Isadora KDE 64-bit to no avail. My model has a Realtek ALC269 audio chipset combined with an ATI southbridge ( ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40) ) using the "snd_hda_intel" kernel module. I've attempted using basically every combination of settings in "alsamixer" that makes sense. In addition to that, I've tried adding the "options snd-hda-intel model=" parameter in "/etc/modprobe.d/alsa-base.conf" starting with "basic" and trying every combination of "Input Source." I've also tried the "auto", "lenovo", "toshiba" and "3stack" models, but nothing works -- In each instance I get nothing when I try "arecord -t wav -f cd filename" and/or try-to-capture-sound/access-the-mic in eg. VLC Media Player or Skype where in the case of VLC I've tried "Open Capture Device..." where I've tried every possible audio device node with "Audio device name" and in the case of Skype I've tried "Skype Test Call."
My ALSA system information for the default model and the model "basic" respectively can be accessed here :
http://www.alsa-project.org/db/?f=5a7e986d7cad81213d2ef64f02ae478c7994c4d7
http://www.alsa-project.org/db/?f=f334a100b0c173875d838e57e42e7c23d98da8b7
Currently I'm at a loss as to what the problem is or what further action to take.
I'd be grateful for any assistance.
Thanks,
jdb2

Most of the webcams support what is called 'UVCVideo' which is a generic video device; the generic video driver in the Linux kernel is able to support the webcam. Some manufacturers may put legacy cameras which requires a few extra steps from the customer's side.
Regarding the mic not working; audio/sound support is handled by the Linux kernel and the ALSA subsystem, http://www.alsa-project.org/ New audio hardware come with small variations which require equally small adaptations in ALSA. The laptop manufacturers tend not to help with this small information and it is up to the customers to inform the ALSA project.
For both devices, try out the latest version of Linux (such as the Ubuntu 10.04 distribution) in case these have been resolved from the work of other customers.
For the webcam, run the command 'lsusb' in a terminal window in order to identify the exact identification details. From those details it is possible to decide what to do next.
For the mic issue, if it is not resolved in Ubuntu 10.04, there is a process to extract the full hardware details of the sound card and use those details to help solve the problem.
You would need to execute the command
wget -O alsa-info.sh http://alsa-project.org/alsa-info.sh && bash ./alsa-info.sh
and then post the resulting file to a forum to help you. This forum does not support attachments, so when you are prompted above to send the details to www.alsa-info.org, select Yes and post here the URL with those details.

Setting the Webcam resolution?

Hello,
I planned to writing some basic motion tracking software in Java using the JMF. The webcam I planned to order is the Creative webcam live mentioned here on amazon:
http://www.amazon.com/exec/obidos/tg/detail/-/B0002UE9WI/qid=1125501861/sr=8-5/ref=pd_bbs_5/103-4724716-5856630?v=glance&s=electronics&n=507846
The webcam is said to have a resolution of 640 x 480, and hoped to use the FrameAccess.java example from Sun to use the webcam rather than a video.
The FrameAccess.java I believe allows access to the pixels of each frame.
I just wondered if anyone knew, if the JMF included any functions to change the resolution of the webcam from 640 x 480 to maybe 320 x 240?
So there are less pixels to process from each frame?
Many thanks

Thank you for replying.
When I use this creative webcam with JMF, do you think using the FrameAccess code and changing this code to work with a webcam rather than video.
The FrameAccess code would display an image less than 620 x 480 in the swing component, and in the process method which allows access the frame pixels the number of pixels would be less than 620 x 480?
Even though the webcam has a default 640 x 240 setting? Would you have any idea how small the 640 x 480 would be reduced to?
Thanks

Detect possible webcam resolutions

Happy New Year to everybody!
So, I searched forums and googled and not found anything on how to detect the Webcam supported resolutions in flash.
The whole issue stems from the issue when I use Camera.getCamera() (only have one attached to my laptop) I'm always getting
different values for camera.height and camera.width. Also some 720p cams have different aspect ratio then the old cameras.
Is there possible to detect somehow what's the largets resolution is supported by a webcam? Or all possible resolutions supported?
GLTA.

hi
I´m trying to know if the webcam is 4/3 or 16/9. You know that your solution could work?
cam.setMode(64000,48000,fps);
switch (ScaleCam(cam)) {
                case 1.33: // 4/3
                    mx.controls.Alert.show("4/3"+"\n"+cam.width+"\n"+cam.height);
                    break;
                case 1.77: // 16/9
                    mx.controls.Alert.show("16/9"+"\n"+cam.width+"\n"+cam.height);
                    break;
                case 3: //
                    break;
protected function ScaleCam(cam:Camera):Number {
    var scale:Number = new Number();
    scale = cam.width/cam.height;
    scale = Number(scale.toFixed(2));
    return scale;
I haven´t got webcam HD 16/9, so can´t try this solution.
Thanks!

Webcam Resolution Issues

I am beginning to think that there is a hardware problem with the webcam on my new dv6-2043ca running Windows 7 Home Premium 64 bit.
Can someone who owns a dv6-2043ca please confirm that the internal webcam works at resolutions greater than 160X120?

Try adjusting the focus ring. You can check the manual at page 3 for the part location.
Jason

Linux & webcam

Hello,
I've a Samsung Q45 with a build-in webcam. The cam is
supported by the
linux uvc webcam driver and is detected as follows:
uvcvideo: Found UVC 1.00 device Vega USB 2.0 Camera.
(0ac8:c302)
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
It works applications like skype (v2.0.0.13, the linux beta
with video support) or kopete but not in Adobe flash.
In the webcam settings I see Vega USB 2.0 camera but no
picture.
The cam supports yuv grabbing only ... maybe this helps...
any suggestions?
thx,
Florian

The reason Flash Player 9.0.x on Linux shows a black preview
window is because the Flash Player was written to support the Video
4 Linux version 1 API (V4L or V4L1) that was obsoleted in December
2006. The Video 4 Linux 2 (V4L2) API has been in the mainline
kernel since November, 2002, with Linux 2.5.46.
In the case of Flash Player 9.0.x for Linux there are several
problems:
1. Written for the obsolete V4L1 interface, not V4L2
2. Falsely assumes (USB) web-cams can overlay into graphics
memory
3. Tries to do the preview window using overlay
The black window is simply the background of the space
reserved on-screen where Flash Player expects the camera to overlay
incoming video. As no overlay occurs you continue to see the black
background.
V4L was designed for TV-capture cards and one of its IOCTL
(Input/Output Control) functions was VIDEOCCAPTURE (Video Control
Capture). If the device driver implemented this IOCTL it allowed
the video to be written directly into video graphics frame buffer
memory by the driver, and was mostly used by TV capture cards as
the most efficient method of display. The alternative is to read
into buffers and then write those to the video adapter like any
other bitmap.
In V4L2 there is the VIDIOC_OVERLAY IOCTL, which has a
similar purpose. V4L2 provides a V4L1 compatibility layer and in TV
cards it might make sense to implement VIDIOC_OVERLAY and a
compatible VIDIOCCAPTURE that uses it for V4L1 devices.
There is however another issue. In most cases USB webcam
devices cannot access graphics frame buffer memory directly so both
these IOCTLs are usually not implemented in webcam device drivers
and should return -EINVALID to tell the application they are not
implemented. This shouldn't cause the application to fail.
Let's hope someone at Adobe pays attention to the Linux
kernel Documentation for the next revision of the Player or else
it'll be another missed opportunity leading to more frustrated
users. Let's also hope they rework the code-base so they can build
versions for 64-bit architectures too.

Webcam resolution problem after sharing screen

If you have a call running with cameras on and one shares a screen for a bit the resolutions goes back to 640x480 (4:3). When you turn screen sharing off again it won't sync back up to HD. It's very annoying!
It also happens if only one person has the camera running.
Does it really have to lower the resolution? And why doesn't it go back to full resolution after you shut it down?
From what I've seen there's no way for it to go back up without restarting the call. It seems like just a retarded bug to me. Please have a look and I hope to have it fixed asap

This is not really a bug, but a an irritating feature, and has been like this since screen sharing with video was enabled.
When screen sharing, the call behaviour is like with group video calls, i.e. the connection is transferred from being P2P to be server based. The video format on group video calls is 4:3.
Apparently, until now , Skype developers have not yet figured out how to switch back to the P2P mode after screen sharing is stopped.

Changing Resolution of webcam video capture: The captfoss method.

Hello,
*'captfoss'* proposed a method to change the resolution of video captured using webcam in [this post|http://forums.sun.com/thread.jspa?messageID=10596731#10596731] . Then I posted a working example in the same thread which used the same method to change resolution to 640x480. Here in this post I just want to post the actual method which makes the resolution ( infact format) changing possible. This method takes the DataSource and the target Format as parameters and returns true/false on the success/failure of format change. The method is as follows:
public boolean requestCaptureFormat(Format requested_format, DataSource ds) {
 if (ds instanceof CaptureDevice) {
 FormatControl[] fcs = ((CaptureDevice) ds).getFormatControls();
 for (FormatControl fc : fcs) {
 Format[] formats = ((FormatControl) fc).getSupportedFormats();
 for (Format format : formats) {
 if (requested_format.matches(format)) {
 ((FormatControl) fc).setFormat(format);
 return true;
 return false;
 }To know the explanation of this method in depth, please click the link of the post. I believe it would not be difficult to understand once you have read that post. Here is the link of that post again:[http://forums.sun.com/thread.jspa?messageID=10596731#10596731].
Using that method, I have made a small utility which allows you to capture in all the supported formats (of webcam). That is meant for demonstration only and I am going to post it in next post (maybe next 2 posts if it exceeds character limit).
Any suggestions to improve the utility would be appreciated. I confess that it is not the best and requires improvements. But it serves its purpose, i.e. demonstration, successfully.
Enjoy!! :-)
Once again thanks to captfoss, I request him to post in this thread to take the 5 dukes I am going to assign to this topic ;)
Thanks!

Here is the code: (in two posts)
import java.awt.*;
import java.awt.event.*;
import java.util.Vector;
import javax.media.*;
import javax.media.control.FormatControl;
import javax.media.protocol.*;
import javax.swing.*;
* @author captfoss & TBM
public class ChangeResolution extends JFrame implements ControllerListener {
 Player p;
 DataSource ds;
 JComboBox combo;
 JPanel vidPanel;
 public ChangeResolution() {
 super("Resolution Change, by captfoss and TBM");
 Manager.setHint(Manager.LIGHTWEIGHT_RENDERER, true);
 try {
 ds = Manager.createDataSource(new MediaLocator("vfw://0"));
 p = Manager.createPlayer(ds);
 } catch (Exception ex) {
 ex.printStackTrace();
 p.addControllerListener(this);
 p.realize();
 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 vidPanel = new JPanel(new BorderLayout());
 vidPanel.setBackground(new Color(250,230,250));
 private void populateCombo() {
 Vector<Format> allFormats = new Vector<Format>();
 if (ds instanceof CaptureDevice) {
 FormatControl[] fcs = ((CaptureDevice) ds).getFormatControls();
 for (FormatControl fc : fcs) {
 Format[] formats = ((FormatControl) fc).getSupportedFormats();
 for (Format format : formats) {
 allFormats.add(format);
 combo = new JComboBox(allFormats);
 combo.addActionListener(new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 new Thread(new Runnable() {
 public void run() {
 vidPanel.removeAll();
 vidPanel.revalidate();
 JLabel lab=new JLabel("<html><center>Wait for a while... " +
 "Format Changing... " +
 "You are using a free open source 'Webcam Resolution Change utility', meant for " +
 "demonstration only, by:" +
 " captfoss and T.B.M " +
 "ENJOY!!</center></html>");
 lab.setHorizontalAlignment(JLabel.CENTER);
 vidPanel.add(lab,BorderLayout.CENTER);
 vidPanel.validate();
 p.stop();
 p.close();
 try {
 ds = Manager.createDataSource(new MediaLocator("vfw://0"));
 } catch (Exception ex) {
 ex.printStackTrace();
 requestCaptureFormat((Format) combo.getSelectedItem(), ds);
 p = null;
 try {
 p = Manager.createPlayer(ds);
 } catch (Exception ex) {
 ex.printStackTrace();
 p.addControllerListener(ChangeResolution.this);
 p.realize();
 }).start();
 }Continued in next post....

Best WebCam for Linux to use with JMF

I am searching for a webcam for linux to stream video using jmf.
I have tried and used Logitech messanger, express, quickcam, and also Creative labs Ex Pro 5.
Each time I buy a another quickcam, Logitech changes the CCD. and the old drivers I use stop working.
Anybody have a well supported Linux WebCam with Linux drivers that they would like to share on how good of succes they have???

Hi,
Our project uses a Logitech Quickcam Pro 4000. It doesn't seem to have any problems. We are running Redhat Linux 9.0. Basically, I think that any camera that will work with Linux should work with Linux.
We also tried an Intel Home PC Camera, but that didn't work...
My 0.02$

Webcam snapshot in flash

I'm mildly familiar with action script. I would like to take
a snapshot from the local webcam and have a preview of the captured
image on the stage, and then upload the captured image to a
ColdFusion server to be saved as a jpg.
After searching online I've found many examples but none of
them work for me. At this time I can only show webcam on the stage.
Could someone help? Thanks in advance!

There is currently a problem (internal bug #2589240) where webcam resolution cannot be increased beyond 320x240 on linux. We're hoping to address this in a future release. Please feel free to ping me with status updates in the future either on this thread or at [email protected]
Thanks,
Chris
Ps. This also effects AIR applications.

LINUX Adobe Flash Player and MINI-DV CAM

Hello,
I Have Mini-DV camcoder Sony DCR-TRV130 connected with my PC
over FireWire cable.
I have installed Linux Ubuntu Feisty Fawn on my Desktop PC.
Also i use FireFox version 2.0.0.3.
I have installed adobe flash player (plugin for FireFox)
version 9,0,31,0
My Mini-DV Sony Cam works with some software like Kino and
others but Adobe flash player don't want to recognise my CAMERA.
Example here:
http://www.ubuntu-rs.org/forum/viewthread.php?action=attachment&tid=1557&pid=14409
If i connect some other webcam like Intel adobe flash player
works just fine
http://www.ubuntu-rs.org/forum/viewthread.php?action=attachment&tid=1557&pid=14424
On Windows XP my Mini-DV cam works just fine too!!
http://www.ubuntu-rs.org/forum/viewthread.php?action=attachment&tid=1557&pid=14406
On Windows i use same version of FireFox and adobe plugin
version 9,0,28,0
ANY COMMENT ARE WELCOMED!!!!!!!!!!!!!!!!!
PLEASE HELP OR ANY HINT!!
THANKS!!

A little late for the original questioner, but here's the
explanation.
In Linux Webcams and TV-capture cards use the Video 4 Linux
API (application programming interface) to detect, configure, and
use those devices. They appear as devices named /dev/video? - where
? is some number. USB webcams use the USB Video Class (UVC) driver,
or a device-specific driver that handles the USB device and makes
it available as a V4L device.
DV camcorders using IEEE-1394 aka Firewire aka i.Link use the
/dev/video1394 or /dev/raw1394 device interfaces which handle all
sorts of Firewire devices, not just cameras. So far no one has
created a generic IEEE1394 <> Video 4 Linux bridge like the
UVC driver and therefore DV cameras aren't available to
applications that only look for Video 4 Linux devices. There is a
hint of this support being at least planned.
For more information on Linux IEEE-1394 support see:
http://wiki.linux1394.org/Introduction

Linux webcam resolution

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