What is a cloned DataSource and when do we need it?

Hi,
Could anybody tell me what a cloned DataSource is and when we need it? How to make a clone from a datasource? Thanks

When you need to perform more than one thing with a DataSource (like saving to a file and broadcast a webcam stream) you need to clone the WebCam Datasource to create two differents graphs, one for saving to a file, and other for broadcast.
The cloned DataSource will only repeat the stream that the cloned DataSource is producing.
Use the methdos im Manager to create a clone.
RGB

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========================================================
Interval Since Last Panic Report: 11870786 sec
Panics Since Last Report:          1
Anonymous UUID:                    D14ABFE9-6DC4-4D31-91C2-54DB1A700EEA
Sun Nov 25 18:50:04 2012
panic(cpu 1 caller 0xffffff8000285c7e): "Spinlock acquisition timed out: lock=0xffffff800089e620, lock owner thread=0xffffff8015528260, current_thread: 0xffffff801b865098, lock owner active on CPU 0x7"@/SourceCache/xnu/xnu-1504.15.3/osfmk/i386/locks_i386.c:374
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0xffffff80b1243de0 : 0xffffff8000204d15
0xffffff80b1243ee0 : 0xffffff8000285c7e
0xffffff80b1243f30 : 0xffffff800046f474
0xffffff80b1243f60 : 0xffffff8000285b66
0xffffff80b1243fa0 : 0xffffff80002c8527
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacBookPro8,2 (Mac-94245A3940C91C80)
System uptime in nanoseconds: 133331970623030
unloaded kexts:
com.apple.filesystems.msdosfs    1.6.3 (addr 0xffffff7f81199000, size 0x49152) - last unloaded 34109349239445
loaded kexts:
com.AmbrosiaSW.AudioSupport    4.0
com.apple.driver.MaxTranserSizeOverrideDriver    2.6.1 - last loaded 31699210783562
com.apple.filesystems.autofs    2.1.0
com.apple.driver.AGPM    100.12.31
com.apple.driver.AppleHWSensor    1.9.3d0
com.apple.driver.AppleMikeyHIDDriver    1.2.0
com.apple.driver.AudioAUUC    1.57
com.apple.driver.AppleHDA    2.0.8f3
com.apple.driver.AppleMikeyDriver    2.0.8f3
com.apple.driver.AppleUpstreamUserClient    3.5.7
com.apple.driver.AppleMCCSControl    1.0.26
com.apple.kext.ATIFramebuffer    6.4.2
com.apple.driver.AppleIntelHDGraphics    6.4.2
com.apple.driver.SMCMotionSensor    3.0.1d2
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AudioIPCDriver    1.1.6
com.apple.driver.ACPI_SMC_PlatformPlugin    4.7.0a1
com.apple.driver.AppleLPC    1.5.1
com.apple.driver.AppleMuxControl    3.0.17
com.apple.ATIRadeonX3000    6.4.2
com.apple.kext.AppleSMCLMU    1.5.2d10
com.apple.driver.AppleIntelSNBGraphicsFB    6.4.2
com.apple.driver.AppleUSBTCButtons    201.6
com.apple.driver.AppleUSBTCKeyboard    201.6
com.apple.driver.AppleIRController    303.8
com.apple.iokit.SCSITaskUserClient    2.6.9
com.apple.BootCache    31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.iokit.IOAHCIBlockStorage    1.6.6
com.apple.driver.AppleSDXC    1.0.4
com.apple.driver.AppleFWOHCI    4.7.7
com.apple.driver.AirPort.Brcm4331    433.11.5
com.apple.iokit.AppleBCM5701Ethernet    3.0.8b2
com.apple.driver.AppleUSBHub    4.2.5
com.apple.driver.AppleEFINVRAM    1.4.0
com.apple.driver.AppleSmartBatteryManager    160.0.0
com.apple.driver.AppleAHCIPort    2.2.0
com.apple.driver.AppleACPIButtons    1.3.6
com.apple.driver.AppleRTC    1.3.1
com.apple.driver.AppleUSBEHCI    4.2.6
com.apple.driver.AppleHPET    1.5
com.apple.driver.AppleSMBIOS    1.7
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com.apple.security.quarantine    0
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com.apple.iokit.IOSCSIBlockCommandsDevice    2.6.9
com.apple.iokit.IOUSBMassStorageClass    2.6.7
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com.apple.driver.AppleProfileTimestampAction    10
com.apple.driver.AppleProfileThreadInfoAction    14
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com.apple.driver.AppleProfileKEventAction    10
com.apple.driver.AppleProfileCallstackAction    20
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com.apple.iokit.IOSurface    74.2
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com.apple.iokit.IOHDAFamily    2.0.8f3
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com.apple.driver.AppleBacklightExpert    1.0.2
com.apple.iokit.IONDRVSupport    2.2.1
com.apple.driver.AppleSMC    3.1.0d5
com.apple.kext.ATI6000Controller    6.4.2
com.apple.kext.ATISupport    6.4.2
com.apple.iokit.IOGraphicsFamily    2.2.1
com.apple.driver.AppleThunderboltDPInAdapter    1.5.9
com.apple.driver.AppleThunderboltDPAdapterFamily    1.5.9
com.apple.driver.AppleThunderboltPCIDownAdapter    1.2.1
com.apple.driver.BroadcomUSBBluetoothHCIController    2.4.5f3
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com.apple.driver.AppleUSBMergeNub    4.2.5
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com.apple.iokit.IOSCSIMultimediaCommandsDevice    2.6.9
com.apple.iokit.IOBDStorageFamily    1.6
com.apple.iokit.IODVDStorageFamily    1.6
com.apple.iokit.IOCDStorageFamily    1.6.1
com.apple.driver.XsanFilter    402.1
com.apple.iokit.IOAHCISerialATAPI    1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily    2.6.9
com.apple.driver.AppleThunderboltNHI    1.3.2
com.apple.iokit.IOThunderboltFamily    1.7.4
com.apple.iokit.IOFireWireFamily    4.2.7
com.apple.iokit.IO80211Family    320.1
com.apple.iokit.IONetworkingFamily    1.10
com.apple.iokit.IOUSBUserClient    4.2.4
com.apple.iokit.IOAHCIFamily    2.0.7
com.apple.driver.AppleEFIRuntime    1.4.0
com.apple.iokit.IOHIDFamily    1.6.6
com.apple.iokit.IOUSBFamily    4.2.6
com.apple.iokit.IOSMBusFamily    1.1
com.apple.kext.AppleMatch    1.0.0d1
com.apple.security.TMSafetyNet    6
com.apple.driver.DiskImages    289
com.apple.iokit.IOStorageFamily    1.6.3
com.apple.driver.AppleACPIPlatform    1.3.6
com.apple.iokit.IOPCIFamily    2.6.8
com.apple.iokit.IOACPIFamily    1.3.0
Panic(CPU 7): NMIPI for spinlock acquisition timeout, spinlock: 0xffffff800089e620, spinlock owner: 0xffffff8015528260, current_thread: 0xffffff8015528260, spiRAX: 0xffffff8016457520, RBX: 0x00007940f1212773, RCX: 0xffffff8016458f40, RDX: 0xffffff8013d0cc78
RSP: 0xffffff80b13ebef0, RBP: 0xffffff80b13ebef0, RSI: 0xffffff800089e698, RDI: 0xffffff80162df950
R8: 0x00007940f1212773, R9: 0xffffff800089e698, R10: 0x00000000000003e8, R11: 0x0000000000000000
R12: 0xffffff80162df950, R13: 0x0000000000000001, R14: 0xffffff800027dace, R15: 0xffffff800085ae38
RFL: 0x0000000000000093, RIP: 0xffffff800020bf2c, CS: 0x0000000000000008, SS: 0x0000000000000010
Backtrace (CPU 7), Frame : Return Address
0xffffff80aa2daf50 : 0xffffff80002d76f6
0xffffff80aa2daf80 : 0xffffff80002d0322
0xffffff80aa2dafd0 : 0xffffff80002e40d2
0xffffff80b13ebef0 : 0xffffff800020bc59
0xffffff80b13ebf20 : 0xffffff800027db60
0xffffff80b13ebf60 : 0xffffff80002c3095
0xffffff80b13ebfa0 : 0xffffff80002e4894
BSD process name corresponding to current thread: firefox
Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 8 GB, SMC 1.69f3
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 5.100.198.104.5)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK7559GSXF, 698.64 GB
Serial ATA Device: OPTIARC DVD RW AD-5970H
USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd110000 / 3
USB Device: FaceTime HD Camera (Built-in), 0x05ac (Apple Inc.), 0x8509, 0xfa200000 / 3
USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0245, 0xfa120000 / 5
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x821a, 0xfa113000 / 7

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