#2 Not working with JMF on Linux

[Carsten Ringe]

I'm using Ubuntu 7.04 with JDK6.0. When I try to start SimpleClient with SimpleClient.sh there is the following error:

$ ./SimpleClient.sh
02.07.2007 00:03:40 jwebcam.simpleclient.SimpleClient main
INFO: LookAndFeel set.
02.07.2007 00:03:41 jwebcam.simpleclient.SimpleClient loadProperties
INFO: Properties loaded.
02.07.2007 00:03:41 jwebcam.simpleclient.SimpleClient findFirstUsableDevice
INFO: 1 devices found. Using 'v4l:Logitech QuickCam EC:0 : v4l://0
RGB, 320x240, Length=230400, 24-bit, Masks=3:2:1, PixelStride=3, LineStride=960
RGB, 160x120, Length=38400, 16-bit, Masks=63488:2016:31, PixelStride=2, LineStride=320, LittleEndian
RGB, 320x240, Length=153600, 16-bit, Masks=63488:2016:31, PixelStride=2, LineStride=640, LittleEndian
RGB, 176x144, Length=50688, 16-bit, Masks=63488:2016:31, PixelStride=2, LineStride=352, LittleEndian
RGB, 352x288, Length=202752, 16-bit, Masks=63488:2016:31, PixelStride=2, LineStride=704, LittleEndian
RGB, 160x120, Length=57600, 24-bit, Masks=3:2:1, PixelStride=3, LineStride=480
RGB, 176x144, Length=76032, 24-bit, Masks=3:2:1, PixelStride=3, LineStride=528
RGB, 352x288, Length=304128, 24-bit, Masks=3:2:1, PixelStride=3, LineStride=1056
RGB, 160x120, Length=76800, 32-bit, Masks=1:2:3, PixelStride=4, LineStride=640
RGB, 320x240, Length=307200, 32-bit, Masks=1:2:3, PixelStride=4, LineStride=1280
RGB, 176x144, Length=101376, 32-bit, Masks=1:2:3, PixelStride=4, LineStride=704
RGB, 352x288, Length=405504, 32-bit, Masks=1:2:3, PixelStride=4, LineStride=1408
YUV Video Format: Size = java.awt.Dimension[width=160,height=120] MaxDataLength = 28800 DataType = class [B yuvType = 2 StrideY = 160 StrideUV = 80 OffsetY = 0 OffsetU = 19200 OffsetV = 24000

YUV Video Format: Size = java.awt.Dimension[width=320,height=240] MaxDataLength = 115200 DataType = class [B yuvType = 2 StrideY = 320 StrideUV = 160 OffsetY = 0 OffsetU = 76800 OffsetV = 96000

YUV Video Format: Size = java.awt.Dimension[width=176,height=144] MaxDataLength = 38016 DataType = class [B yuvType = 2 StrideY = 176 StrideUV = 88 OffsetY = 0 OffsetU = 25344 OffsetV = 31680

YUV Video Format: Size = java.awt.Dimension[width=352,height=288] MaxDataLength = 152064 DataType = class [B yuvType = 2 StrideY = 352 StrideUV = 176 OffsetY = 0 OffsetU = 101376 OffsetV = 126720

'.
java.io.IOException: java.lang.Error: Couldn't initialize capture device
javax.media.NoDataSourceException: Error instantiating class: com.sun.media.protocol.v4l.DataSource : java.io.IOException: java.lang.Error: Couldn't initialize capture device
at javax.media.Manager.createDataSource(Manager.java:1012)
at jwebcam.simpleclient.FrameGrabber.<init>(FrameGrabber.java:45)
at jwebcam.simpleclient.SimpleClient.init(SimpleClient.java:236)
at jwebcam.simpleclient.SimpleClient.<init>(SimpleClient.java:83)
at jwebcam.simpleclient.SimpleClient.main(SimpleClient.java:423)
02.07.2007 00:03:47 jwebcam.simpleclient.SimpleClient init
WARNUNG: DataSource not a CaptureDevice
jwebcam.simpleclient.FrameGrabberException: DataSource not a CaptureDevice
at jwebcam.simpleclient.FrameGrabber.<init>(FrameGrabber.java:61)
at jwebcam.simpleclient.SimpleClient.init(SimpleClient.java:236)
at jwebcam.simpleclient.SimpleClient.<init>(SimpleClient.java:83)
at jwebcam.simpleclient.SimpleClient.main(SimpleClient.java:423)
02.07.2007 00:03:48 jwebcam.simpleclient.SimpleClient saveProperties
INFO: Properties saved.

I guess it's something with permissions, but it says that the camera is not a CaptureDevice, too. I was able to get the device string with jmfregistry, but even hardcoding it, doesn't work.

Check /dev/video0 for permissions?