Anyone use VFW driver with WME ?

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  - 1
    - Listing files that comprise a display driver Hi, One of my current tasks is to list out all the files that comprise a display driver, and the final piece of code should work on both WinXP and Win2000. I have written a piece of code that will list out the files of a driver, given the driver inf file, and the device id. Now my task is to figure out the inf file of the display driver installed on the system. When I use EnumDisplayDevices, the field DeviceKey gives me some information about a location in the registry to the driver registry area within HKLM\SYSTEM\CurrentControlSet. Would like to know if I could and if yes, how, could I use the information in the DeviceKey to get to the inf file of the driver... Can anyone help?? Thanks, Radha. Tag: Anyone use VFW driver with WME ? Tag: 50351
  - 2
    - getting gray text with hp laserjet 4L Hi, I've got a HP Laserjet 4L. When an applications in Win98 prints gray or colored text, the HP Laserjet prints it in gray by using some dithering. Now I have got WinXP and with applications like WordPad or StarOffice the printed text is simple black. With other applications like Acrobat Reader the text is still gray. Is there something wrong with the driver (It's original Windows-driver)? Is there something wrong or missing in the gpd-file? If yes, how can I correct it? kind regards Regina Tag: Anyone use VFW driver with WME ? Tag: 50350
  - 3
    - Checking File and Print Sharing Hi - I'm creating an installation program that will install a VB.NET program and an instance of MSDE on an unknown desktop (commercial application). The install will include the MSDE redistributable files (and it will launch the MSDE Setup.exe to install MSDE). I've read that "Except on Win 98 and Millennium, file and print sharing must be active" How can my install program ensure this (programmatically)? More specifically: Where (registry setting or elsewhere) do I check for these settings, and what name-value pairs are valid? Is this the correct approach? Thanks for your help. - Jeff Tag: Anyone use VFW driver with WME ? Tag: 50349
  - 4
    - VFW Streaming Transfer under WME Hi, I have port a 32bit, user-mode only VFW driver from bravodo sample to an user-mode only Video Capture Driver. I understand that VFW using two transfer mode - Frame (Single Capture) and Stream. For eg, Dorgem, use Frame (Single Capture), However, AMCAP and WME seem use Stream (WDM based). My only problem now remain is on STREAM transfer mode Cause it quite long, in summarized, I used as follow : on DVM_STREAM_PREPAREHEADER - return DV_ERR_NOTSUPPORTED, so suppose client will supply the buffer on DVM_STREAM_ADDBUFFER - add into queue, return DV_ERR_OK When the data ready, I use DriverCallback (with MM_DRVM_DATA). But however, the data seem not pass-through client driver, the preview and/or output screen show nothing, and the WME FPS (Frame per Seconds) show zeros, but show encoding... and my debug show DVM_STREADM_PREPAREHEADER, then DVM_STREAM_ADDBUFFER repeated for about 40 times, then my driver fill the buffer and callback, and this repeat. FYI, I'm using separate thread procedure to supply the data into VHdr (buffer queue), synchronized through semaphore (replace STI/CLI for H/W board), and notify client with DriverCallback (MM_DRVM_DATA etc). I understand that WME, AMCAP etc use somekind of VFW wrapper for WDM, How do I verify that my Callback worked ? Any recommend for a sample WDM client with source-code for me to easy debug (for,eg, the callback did called correctly) ? Thank in advance wp Tag: Anyone use VFW driver with WME ? Tag: 50348
  - 5
    - Problem with NDIS transport driver Hi, I have miniport driver which is using NdisMIndicateStatus function to send some "events" (my own status values) via transport driver into application. Everything works as long as I don't bridge my connection with any other network interface using standard Win XP bridge. When my interface is bridged then transport driver is no longer receving status indications from my miniport driver. Are they filtered by the bridge driver? Is there a solution to that or I have to to change the whole mechanism of sending events up from miniport driver? Thanks for help Marcin Tag: Anyone use VFW driver with WME ? Tag: 50347
  - 6
    - MS Internet Connection Firewall Can anyone tell me how MS Internet Connection Firewall works? I know that it opens an outgoing packet and changes its source address so that the incoming packets are routed to alg.exe (application layer gateway). Can someone tell me how it does this? How does it change the packet? Does it use a TDI driver, a filter hook driver, or an NDIS intermediate driver? Tag: Anyone use VFW driver with WME ? Tag: 50344
  - 7
    - USB: multifunction device beside usbser.sys Hi Because of many people recommended to use usbser.sys instead of writing my own COM mapping driver I did so, and it works so far. My problem now is, that I should be able to use the device's second configuration - so I think I can name some kind of multifunctional device. For getting quick results about feasability, I used libusb-win32 (latest version). I tried to reset the device, enumerate all for getting a new handle set config but got an error. I think it must be usbser.sys that claims the device befor I can do it. How can I solve the problem. Any idea. Many thanks in advance Robin Tag: Anyone use VFW driver with WME ? Tag: 50338
  - 8
    - how does Softice stop the window system? Hello all. I wanna ask a question about softice again. When i start softice, the windows system is stopped. How is this possible? Softice doesn't hook irq0(timer), i think. But, the windows system can't get the chance of handling a timer interrupt. I wanna use a same method like softice's to implement my little driver. Any ideas? thanks for reading. Tag: Anyone use VFW driver with WME ? Tag: 50334
  - 9
    - Help!!!Are there any examples about cdrom filter driver on win9x? Tag: Anyone use VFW driver with WME ? Tag: 50331
  - 10
    - How do you tell WZC that our driver/adapter is WPA compliant We handle OID_802_11_AUTHENTICATION_MODE and return that we are doind WPA authentication but WZC authentication does not show WPA option. Any ideas? -Ron- Tag: Anyone use VFW driver with WME ? Tag: 50326
  - 11
    - problem using a standalone device object with NDIS Hello, I have a problem when using 'NdisMRegisterDevice()' in my NDIS driver. I use this call to create a standalone device object so that my application can communicate with my driver. Using this, I can communicate with my driver fine from my app. However, the file handle that my application creates to talk to my driver does NOT get notified when I register to receive device notifications using 'RegisterDeviceNotification'. However, if I create a handle using the REAL device name (obtained by using the SetupDixxx functions), my app properly receives the notifications. I can't use this handle tho', 'cuz NDIS owns it and my driver won't received Irps sent to it. The basic problem I'm trying to solve is this: if the device is unplugged WHILE the app is running, the app needs to close the handle to allow the driver to unload. Thx, Rick Tag: Anyone use VFW driver with WME ? Tag: 50318
  - 12
    - Getting quick IP address on P2P RNDIS network There is a small problem that we've run into, which I hope somebody can help us with. We have a USB device, which supports RNDIS and that causes an XP machine to create a separate network for it. The device also creates a "remote" node on that network essensially establishing point-to-point network inside the device itself. Now to the problem, how do we quickly assign IP address to this network? I am looking for any suggestions - from totally legal to semi-legal. So far this device is restricted to a lab environment, but having fully supported solution is obviously preferred. Static IP assignment is out of question. So is auto IP as it is too slow. We need to be able to assign a address in a matter of seconds or even faster. Also a requirement - multiple instances of this device can be connected to the same machine and they all have to sit on separate networks and don't conflict with each other. The only solution that I can think of at a moment is to have the device being a DHCP server for its own net. Problem: multiple devices can be connected to the PC and there must be a solid algorithm in place to avoid any conflicts. I was also told that IPv6 would solve this issue. This is very generic problem and I am sure there are good solutions to it. Can anybody offers any suggestions or refer me to relevant RFC or something? Any help would be appreciated. Thanks! -- Max. Tag: Anyone use VFW driver with WME ? Tag: 50314
  - 13
    - DIFx Framework - HOWTO Hi All, First, I have only a basic understanding of the certificates, signing, etc. so please excuse me if some question appears to be a stupid one :-) I'm evaluating the MS DIFx framework as to make a single file installation of the driver I've made. In connection with this I have tried to set-up an installation through DIFx framework but have some troubles with it. I get the following error in DpInst.log file for every INF file in the driver: "ERROR: driver package 'drive:\path\INFFILE.INF' is unsigned. Error code 0x800B0100, No signature was present in the subject." Could somebody explain me what is the right way to set-up the installation. - As far as I know only the cat file should be signed not all the files in the driver package... Follows a short description of how I've tried to make the installation: In the INF file I have included the requested CatalogFile and DriverPackageType sections: CatalogFile=CBMA.cat DriverPackageType=PlugAndPlay The content of CBMA.cdf file is: [CatalogHeader] name=CBMA.cat [CatalogFiles] CBM.dll=CBM.dll OEMUI.dll=OEMUI.dll OEMUNI.dll=OEMUNI.dll CBM.ini=CBM.ini CBM_CT1000II.INF=CBM_CT1000II.INF CBM_CTS300.INF=CBM_CTS300.INF CBM_PPU700.INF=CBM_PPU700.INF CBM1000II.GPD=CBM1000II.GPD CTS300.GPD=CTS300.GPD PPU700.GPD=PPU700.GPD ttfsub.GPD=ttfsub.GPD CBMA.HLP=CBMA.HLP eula.txt=eula.txt From this file I have successfully created .cat file and subsequently signed it with a test certificate obtained through makecert.exe and cert2spc.exe... After that I copied DpInst.exe in the driver directory and made eula.txt and dpinst.xml files. Subsequently when I ran DpInst.exe I received the described error. Any help will be appreciated! 10x ___________________________________________ Best regards, Ivan Dimitrov Tag: Anyone use VFW driver with WME ? Tag: 50299
  - 14
    - DPC has high latency only with SMP Hallo, i'm back with my DPC latency problem: i'm testing my driver on an SMP machine, and 4 or 5 times every second when in the isr i request the dpc, i find that the old request is still in queue. When I start the OS with the /onecpu option, this behaviour disappears and the DPC is never delayed too much (>1ms). Does anyone have some clue for solving this problem ? I don't understand why the dpc handling seems to slow down so much on a SMP machine. Thanks, e. Tag: Anyone use VFW driver with WME ? Tag: 50298
  - 15
    - question from IRP Cheat Sheet 1 ==> Scenario 2 ) Forward and Wait Hello, I have questions regarding the IRP cheat sheet's Scenario 2 , Forward and Wait. http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275 could somebody pls clarify these thanks Taha Question 1 ) ------------ in DispatchRoutine_2 ( ... if (status == STATUS_PENDING) { does this return value of STATUS_PENDING mean that the completion routine of some lower level driver would have returned STATUS_MORE_PROCESSING_REQUIRED? Question 2) ----------- in DispatchRoutine_2 ( ... IoCompleteRequest (Irp, IO_NO_INCREMENT); return status; i) What control flow will the call to IoCompleteRequest initiate? ii) To whom will the "return status;" statement give control How are i) and ii) above inter-related? Tag: Anyone use VFW driver with WME ? Tag: 50297
  - 16
    - [Q] how can i get the CR3 value? Hello all. I have a question about getting cr3 value. (page directory base address) In softice, the 'PAGE' command shows the cr3 value exactly. (on windows 2000, 0x30000. on windows xp, 0x39000) But, my driver can't catch the value. (0xb9e83d8f <- like this) the code is this. push cr3 pop eax it doesn't work. I think this is because my driver is called in a user process, not in kernel. so, my question is this. is there any way to get the cr3 value of the kernel? (running a thread in kernel?) if no, how can i use the same method like softice's. thanks for reading. Tag: Anyone use VFW driver with WME ? Tag: 50295
  - 17
    - BugCheck in TDI Filter TDI_RECEIVE Completion. Have some very simple code but it is Bug Checking from time to time. Seems to be trouble with MDL. if(*IoRequestPacket && (STATUS_MORE_PROCESSING_REQUIRED == status)) { //do set up the filters completion routine and call it IrpStack->CompletionRoutine = F_RECV_COMPLETION_ROUTINE ; } F_RECV_COMPLETION_ROUTINE( IN PDEVICE_OBJECT DeviceObject, IN PIRP pIrp, IN PVOID Context ) { PMDL pMDL = pIrp->MdlAddress ; if(pMDL) ulBytes = MmGetMdlByteCount(pMDL) ; //call original Completion afterwards... } Bug Checks vary from DRIVER_IRQL... to IRQL_NOT_LESS... Do I miss something? Since I am only filtering, I supposed that the MDL was already locked. Tag: Anyone use VFW driver with WME ? Tag: 50294
  - 18
    - Question on IRP Cheat sheet SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE Hello, I have questions regarding the IRP cheat sheet's SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275 could somebody pls clarify these thanks Taha =================================================== |SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE| =================================================== Question 1) ----------- The comment in DispathRoutine_4 says the following: // // You mark the IRP pending if you are intending to --> queue the IRP <---- // and process it later. If you are intending to forward the IRP // directly, use one of the methods discussed earlier in this article. what is meant by "queue the IRP" over here? Question 2) ----------- In the explanation it says: " The completion routine can either return STATUS_CONTINUE_COMPLETION or STATUS_MORE_PROCESSING_REQUIRED. You return STATUS_MORE_PROCESSING_REQUIRED only if you intend to reuse the IRP from another thread and complete it later. " what does it mean by "if you intend to reuse the IRP from another thread and complete it later"? Question 3) ----------- In CompletionRoutine_42 (..... Here in the comment it sys: // // Because you are stopping the completion of the IRP by returning the // following status, you must complete the IRP later. What is meant by "you must complete the IRP later." , later when , why and how? Tag: Anyone use VFW driver with WME ? Tag: 50293
  - 19
    - Question on IRP Cheat sheet SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE Hello, I have questions regarding the IRP cheat sheet's SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275 could somebody pls clarify these thanks Taha =================================================== |SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE| =================================================== Question 1) ----------- The comment in DispathRoutine_4 says the following: // // You mark the IRP pending if you are intending to --> queue the IRP <---- // and process it later. If you are intending to forward the IRP // directly, use one of the methods discussed earlier in this article. what is meant by "queue the IRP" over here? Question 2) ----------- In the explanation it says: " The completion routine can either return STATUS_CONTINUE_COMPLETION or STATUS_MORE_PROCESSING_REQUIRED. You return STATUS_MORE_PROCESSING_REQUIRED only if you intend to reuse the IRP from another thread and complete it later. " what does it mean by "if you intend to reuse the IRP from another thread and complete it later"? Question 3) ----------- In CompletionRoutine_42 (..... Here in the comment it sys: // // Because you are stopping the completion of the IRP by returning the // following status, you must complete the IRP later. What is meant by "you must complete the IRP later." , later when , why and how? Tag: Anyone use VFW driver with WME ? Tag: 50292
  - 20
    - Questions on IRP Cheat Sheet ==> SCENARIO 2: FORWARD AND WAIT Hello, I have questions regarding the IRP cheat sheet's Scenario 2 , Forward and Wait. http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275 could somebody pls clarify these thanks Taha Question 1 ) ------------ in DispatchRoutine_2 ( ... if (status == STATUS_PENDING) { does this return value of STATUS_PENDING mean that the completion routine of some lower level driver would have returned STATUS_MORE_PROCESSING_REQUIRED? Question 2) ----------- in DispatchRoutine_2 ( ... IoCompleteRequest (Irp, IO_NO_INCREMENT); return status; i) What control flow will the call to IoCompleteRequest initiate? ii) To whom will the "return status;" statement give control How are i) and ii) above inter-related? Tag: Anyone use VFW driver with WME ? Tag: 50291
  - 21
    - Questions on IRP Cheat Sheet ==> SCENARIO 2: FORWARD AND WAIT Hello, I have questions regarding the IRP cheat sheet's Scenario 2 , Forward and Wait. http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275 could somebody pls clarify these thanks Taha Question 1 ) ------------ in DispatchRoutine_2 ( ... if (status == STATUS_PENDING) { does this return value of STATUS_PENDING mean that the completion routine of some lower level driver would have returned STATUS_MORE_PROCESSING_REQUIRED? Question 2) ----------- in DispatchRoutine_2 ( ... IoCompleteRequest (Irp, IO_NO_INCREMENT); return status; i) What control flow will the call to IoCompleteRequest initiate? ii) To whom will the "return status;" statement give control How are i) and ii) above inter-related? Tag: Anyone use VFW driver with WME ? Tag: 50290
  - 22
    - simple & stripe volumes filter driver differences ? Hi i got a working simple volume filter driver, it is installed as an upperfilter driver. When working with stripe volumes it does not write and / or read the data correctly. What is different between simple and stripe volumes for that driver then ? Thanks. Tag: Anyone use VFW driver with WME ? Tag: 50288
  - 23
    - after application call CancelIO USB device . after application called CancelIO, driver receive two IRPs with ioControlCode 0x80002004 and 0x8000201C , how to find out the meaning of these ioControlcodes? I tried to split it in to parts as DDK defined,but i don't know how to do next. Is there a way to get the meaning? Tag: Anyone use VFW driver with WME ? Tag: 50287
  - 24
    - SetFeature DEVICE_REMOTE_WAKEUP Sir...Good afternoon I had a problem on USB RemoteWakeup, that Device is not belong to Keyboard or mouse. The Bit of "support remote wakeup" in device ConfigurationDescriptor Had been Setted as 1 . How can i make the Windows replay device a SetFeature to enable this function? or i should send SetFeature out while my driver checking ConfigurationDescriptor?? May i have your kindly answer? Tag: Anyone use VFW driver with WME ? Tag: 50286
  - 25
    - static driver verifier? Has anybody used any pre-release version of Microsoft's SDV ? http://www.microsoft.com/whdc/devtools/tools/SDV.mspx are there any updates on when would this be available ? regards Taha Tag: Anyone use VFW driver with WME ? Tag: 50285
- Next
  - 1
    - Driver debugging issue Can anyone teach me how to step by step debug a kernel mode driver in C++ source rathar than in DASM? I am currently using DriverStudio 3.x but I don't know how to break a driver. I've tried using DbgBreakPoint(), but it breaks in assembly code. How can I debug in my C++ source? also, if I issue GO command after breaking at DbgBreakPoint(), the target system crash and reboot. How to solve it? Besides Driver Studio, tutorials on how to debug kernel mode driver in C++ source using WinDbg will also appreciated. Thanks David Tag: Anyone use VFW driver with WME ? Tag: 50281
  - 2
    - why my cdrom filter driver(WDM) doesn't work on win98? It can work right on windows 2000. Tag: Anyone use VFW driver with WME ? Tag: 50278
  - 3
    - network link speed Hello, does anyone know how the link speed is determined by Windows when attached to a wireless network? I know Windows queries the Ndis driver using OID_GEN_LINK_SPEED, which is supposed to return the max Tx rate. In a wireless network, the max rate is determined by the Service Set. Therefore, I would assume that when associating with a particular Access Point, I should always get the same link speed. However, I've seen cases where the link speed changes between 1, 2, 5.5 & 11Mbps - even though I'm still connected (i.e. no disassociation/reassociation occurs). My service set consists of a single Access Point, which is configured to use all 4 rates (i.e. they're all marked Mandatory in the beacon parameter set). Thx, Rick Farrington Tag: Anyone use VFW driver with WME ? Tag: 50272
  - 4
    - IoBuildDeviceIoControlRequest DDK for IoBuildDeviceIoControlRequest(...) says that field " Event is set to to the signaled state when lower driver has completed the requested operation..." Does it mean that I/O Manager set Event ? thanks, dave Tag: Anyone use VFW driver with WME ? Tag: 50271
  - 5
    - AVStream: Saving MPEG2-PS to file with Dump filter sees loss of stream Hi, I'm using the Dump filter from the SDK to connect to my HW encoder and save to file. When I playback the file I get a loss of content everey couple ~5 seconds for ~1/3 of a second (my source shows time code on screen). Wondering if any body has seen this problem? Would it be possible that the latency from the dump filter writing to the HD could cause this? MY encoder buffers ~2 seconds of MPEG2-PS and never experiences an overflow. Thx Tag: Anyone use VFW driver with WME ? Tag: 50265
  - 6
    - scsi troubles... Hi folks, my (first attempt of a) pcmcia scsi miniport driver is driving me insane... The driver consists of only a DriverEntry() - which initializes a HW_INITIALIZATION_DATA structure - and a few (empty) functions for the drivers entry points. (As seen at MSDN->SCSI Miniport Drivers). Here's how the initialization of the HW_INITIALIZATION_DATA structure looks like: ULONG DriverEntry(IN PVOID DriverObject, IN PVOID Argument2) { HW_INITIALIZATION_DATA InitData; ULONG Status; ULONG i; for (i=0; i<sizeof(HW_INITIALIZATION_DATA); i++) ((PUCHAR)&InitData)[i] = 0; InitData.HwInitializationDataSize = sizeof(HW_INITIALIZATION_DATA); InitData.AdapterInterfaceType = PCMCIABus; InitData.DeviceExtensionSize = sizeof(MY_DEV_EXT); InitData.NumberOfAccessRanges = 2; InitData.HwFindAdapter = FFS_FindAdapter; InitData.HwInitialize = FFS_HwInitialize; InitData.HwStartIo = FFS_StartIo; InitData.HwResetBus = FFS_ResetBus; InitData.HwAdapterControl = FFS_AdapterControl; InitData.HwInterrupt = FFS_Interrupt; InitData.HwAdapterState = FFS_AdapterState; InitData.HwDmaStarted = NULL; Status = ScsiPortInitialize(DriverObject, Argument2, &InitData, NULL); __asm int 3 return(Status); } The bare minimum inf file to install my bare minimum driver looks like this: [Version] Signature="$WINDOWS NT$" Class=MTD ClassGuid={4D36E970-E325-11CE-BFC1-08002BE10318} Provider="Mike" DriverVer=08/14/2004 [DestinationDirs] DefaultDestDir=12 [Manufacturer] "Flashcard"=DeviceList [DeviceList] "PCMCIA Flashcard"=DriverInstall,PCMCIA\UNKNOWN_MANUFACTURER-0000 [DriverInstall.NTx86] CopyFiles=@ffs.sys [DriverInstall.NTx86.Services] AddService=ffs, 2, ServiceInstallSettings [ServiceInstallSettings] DisplayName = "PCMCIA Flashcard" ServiceType = 1 StartType = 3 ErrorControl = 1 ServiceBinary = %12%\ffs.sys LoadOrderGroup = SCSI Miniport Dependencies = PCMCIA AddReg = ServiceRegistryEntries [ServiceRegistryEntries] HKR, "Parameters\PnpInterface", "8", 0x00010001, 0x00000001 The driver is ment to be pnp compliant as the PnpInterface registry key and the presence of the HwAdapterState-function indicate. After the driver is installed and a memory card is pluged in, the drivers DriverEntry() function is called and ScsiPortInitialize() returnes a value of zero. (Which seems to be ok). But after that, no other function will be called! The main question is: Why is no other function than DriverEntry() called? Acording to MSDN this may happen if PnpInterface is present but the driver is not installed as a service for the device. Which leads directly to the question: The above inf file should install the driver ffs.sys as service (with the name 'ffs') for devices of type PCMCIA\UNKNOWN_MANUFACTURER-0000. Is this the case? Or do you see any mistakes? (I used msdn and Oneys WDM book to 'tinker' the above inf file together, but it's well possible that i've missed something... ?!?) I have no idea why my driver does not initialize proper. Maybe a legacy driver would be a better idea than a pnp driver... Please let me know if you have any advice. Thanks in advance, Mike Tag: Anyone use VFW driver with WME ? Tag: 50264
  - 7
    - USB Driver : 0xC0000B00 + 0xC000A00 errors with Isochronous OUT Endpoint when ASAP is specified ! Hi, My device supports an Isochronous OUT Endpoint, set to 895 bytes/ms. Also I would like to fully use this endpoint (ie : fill in all Isochronous OUT frames each millisecond). To do this, I implemented a stuff that sends 4 pending URBs to the USB Bus driver. Each URB also gets completed but some are completed with 0xC0000B00 error (USBD_STATUS_ISOCH_REQUEST_FAILED). For those URBs that fails with this error, Iso packets (that do not have data) are told to be in error (0xC0000A00 = USBD_STATUS_BAD_START_FRAME), whereas all URB are sent with the USBD_START_ISO_TRANSFER_ASAP flag. Does anyone knows this kind of problem, and is there any trick to fix this problem ? Thanks by advance ! Sebastien Tag: Anyone use VFW driver with WME ? Tag: 50258
  - 8
    - USB Driver : 0xC0000B00 + 0xC000A00 errors with Isochronous OUT Endpoint when ASAP is specified ! Hi, My device supports an Isochronous OUT Endpoint, set to 895 bytes/ms. Also I would like to fully use this endpoint (ie : fill in all Isochronous OUT frames each millisecond). To do this, I implemented a stuff that sends 4 pending URBs to the USB Bus driver. Each URB also gets completed but some are completed with 0xC0000B00 error (USBD_STATUS_ISOCH_REQUEST_FAILED). For those URBs that fails with this error, Iso packets (that do not have data) are told to be in error (0xC0000A00 = USBD_STATUS_BAD_START_FRAME), whereas all URB are sent with the USBD_START_ISO_TRANSFER_ASAP flag. Does anyone knows this kind of problem, and is there any trick to fix this problem ? Thanks by advance ! Sebastien Tag: Anyone use VFW driver with WME ? Tag: 50256
  - 9
    - Using DIFxApp for Net Client install I've been trying to use the DIFxAPP code to install our NFS Client Device driver and have been running into problems. The DIFxAPP code requires a WHQL digital signature.for use with Windows 2000 and XP. Since we have no hardware we cannot take advantage of that program. An Authenticode signature can be used for Windows Server 2003, but apparently not for Win2k and XP (According to the Authenticode doc anyway). Has anyone else run into this problem? Any workarounds? Does anyone know why a WHQL digital signature is a requirement? Any idea if this requirement might be relaxed in the future? The error that cat get past is 0x800B0100L which is "No signature was present in the subject." I have supplied an Authenticode signiture, so I'm guessing that it wants a WHQL digital signature, correct? Regards, Duane Johnson WRQ, Inc. Tag: Anyone use VFW driver with WME ? Tag: 50255
  - 10
    - Terminal Server, virtual audio driver, and lossless audio I was unable to locate a better newsgroup, so if there is a better place to post this question, please let me know. I am working with streaming audio over a Terminal Services connection in Windows 2003 Server. However, the application we'd like to use will be used in an audiological setting, so having lossless audio is of paramount importance and there doesn't appear to be a way to configure the virtual audio driver to use a lossless codec for transmission across the network. My question, then is this: Is there a way to configure the virtual audio driver for Terminal Services to use lossless compression? If not, to whom would I speak in order to have this option implemented in a future version? Thank you for your time in this matter. Tag: Anyone use VFW driver with WME ? Tag: 50254
  - 11
    - How does NDISWAN work? Hi, does somebody know how NDISWAN makes decisions which WAN link is best for sent packet? MSDN says: "In an NDIS WAN environment, NDISWAN examines the header of the descriptor of a send packet and determines over which link the packet will be sent", but I would like to know what item of packet descriptor header is crucial. Tag: Anyone use VFW driver with WME ? Tag: 50253
  - 12
    - binplace integration to the build utility Hello, Is there a way to integrate the binplace utility to the build utility of the ddk? For example the WPP tool is integrated and to use it you need to add the macro "RUN_WPP= $(SOURCES) -km" to the "source" file. I could not find any documentation about it in the ddk or the Internet. Nir Tag: Anyone use VFW driver with WME ? Tag: 50250
  - 13
    - How to popup safe removal dialog of PNP device ? Dears Do you know if there is any function can popup safe removal dialog of PNP device ? Thanks a lot .. Tag: Anyone use VFW driver with WME ? Tag: 50246
  - 14
    - DeviceIoControl return 998 hi, I try to retrieve signal strength from NDISUIO driver. the CreateFile returns OK on the name \\\\.\\{x-x-x-x}, but the DeviceIoControl retrurn 998 (no access to file). does anybody know why and how i should solve this problem. I should mention i'm working on xp and therefore the line "queryOID->ptcDeviceName = ptcDeviceName;" could not be performed, because the queryOID->ptcDeviceName exists only on WIN CE. Thanx, d Tag: Anyone use VFW driver with WME ? Tag: 50245
  - 15
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  - 20
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  - 22
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  - 24
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  - 25
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Hi,

I 'm wondering did anyone used VFW capture driver with WME (Window Media
Encoder) b4.
Cause I'm on the midst testing my driver, but just to make sure go in right
direction !

Thank in advance

wp

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Re: Anyone use VFW driver with WME ? by The

The
Wed Aug 18 12:18:55 CDT 2004

On Thu, 19 Aug 2004 00:31:30 +0800, Laksa wrote:

> I 'm wondering did anyone used VFW capture driver with WME (Window Media
> Encoder) b4.
> Cause I'm on the midst testing my driver, but just to make sure go in right
> direction !

Did you read the FAQ?

http://www.microsoft.com/windows/windowsmedia/9series/encoder/faq.aspx?section=DEVICES&question=DEVICES4#NAME_DEVICES

Also, the mmedia newsgroup is not appropriate for this post. There is a
windowsmedia.encoder newsgroup for questions on WME (where I have set the
followup-to).

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Anyone use VFW driver with WME ? by Sreeram

Sreeram
Fri Aug 20 23:20:07 CDT 2004

Hi,

Yes. I have developed a VfW driver recently. It works with
WME, Adobe Premiere.

You need to store the buffers that WME is supplying in a
local queue. Once you got DVM_STREAM_START message you
need to supply the buffers to your thread where you are
filling the buffer. I used a double buffering method for
this.

One guess: Are you supplying the timestamp (dwTimeCaptured
member of VIDEOHDR structure)? You need to supply a
timestamp before you do a CALLBACK to the client. Else you
can see a black screen in WME even if everything happens
properly in your driver.

Sreeram.

>-----Original Message-----
>Hi,
>
>I 'm wondering did anyone used VFW capture driver with
WME (Window Media
>Encoder) b4.
>Cause I'm on the midst testing my driver, but just to
make sure go in right
>direction !
>
>Thank in advance
>
>wp
>
>
>
>.
>

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