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WinCE6.0 USB Camera Driver not support MJPEG RRS feed

  • 问题

  • Hi,

    I am using WinCE6.0 R3 OS and USB Camera Driver.It download from microsoft's website. My platform is S3C6410 Development Bord.

    The Driver supports two mode: UNCOMPRESSED or MJPEG.

    My question :

    1  I used UNCOMPRESSED mode,the 'CameraDshowApp.exe("D:\WINCE600\PRIVATE\TEST\MULTIMEDIA\DIRECTX\DSHOW\CAMERA\CAMERAAPP") worked well,could capture and snap picture.But, it only supported 176*144 pixel. It's too small, Can you give me some help?

    2  I used MJPEG mode, the driver can support follow pixels:

        MJPEG Format[0] Width: 640, Height 480, Max Buf: 0x96000

        MJPEG Format[1] Width: 160, Height 120, Max Buf: 0x9600

        MJPEG Format[2] Width: 176, Height 144, Max Buf: 0xc600

        .........

        MJPEG Format[11] Width: 800, Height 600, Max Buf: 0xea600

        But When i run the App(CameraDshowApp.exe), Driver output a exception:

        Exception 'Data Abort' (4): Thread-Id=07be01ea(pth=855e5240), Proc-Id=07bd01ea(pprc=83ce5428) 'CameraDshowApp.exe', VM-active=07bd01ea(pprc=83ce5428) 'CameraDshowApp.exe'
    PC=400b3800(coredll.dll+0x00053800) RA=41814984(quartz.dll+0x000b4984) SP=0003fbb4, BVA=00000000
    Exception 'Raised Exception' (-1): Thread-Id=07be01ea(pth=855e5240), Proc-Id=00400002(pprc=82e79308) 'NK.EXE', VM-active=07bd01ea(pprc=83ce5428) 'CameraDshowApp.exe'
    PC=c003bc10(k.coredll.dll+0x0001bc10) RA=801182c8(kernel.dll+0x000062c8) SP=d44bf43c, BVA=ffffffff

        It can't support capture and still.  Someone had the same questions,but not give the Solutions.

        Please give me suggestion.

        Thanks!

    2013年12月22日 14:13

答案