On 10/lug/08, at 22:59, #! /usr/bin/doma wrote: > hi all!
Hi there! > So, i'm trying to figure out how the camera object works. Has anybody > yet successfully opend a vloopback device with libavg? libavg's V4L2 implementation has been surely tested with Bt8x8 PCI boards and a bunch of webcams, but I personally have no reports about vloopback. What version are you using? > Every try with different pixelformats ends with a "IDIOC_QUERYCAP > error". Capabilities query is done at every device initialization. This error is probably due to an unsupported reporting interface on the video loopback device. How do you set up the loopback? > Has anyone got a clue? A normal /dev/video0 bttv capture card works > great here. > > thx, > -doma > > ps: Attached - TestCamera output and output of "v4l-info /dev/video1" > > > > python TestCamera.py > [08-07-10 22:48:44.901] LOGGER: Logging started > -------- test -------- > [08-07-10 22:48:44.901] MEMORY: Player::LoadFile(camera.avg) > [08-07-10 22:48:44.902] CONFIG: V4LCamera() device=/dev/video1 ch=1 > w=640 h=480 pf=YUV420 > [08-07-10 22:48:44.902] CONFIG: Display bpp: 24 > [08-07-10 22:48:44.902] CONFIG: Requested OpenGL configuration: > [08-07-10 22:48:44.902] CONFIG: POW2 textures: false > [08-07-10 22:48:44.902] CONFIG: Fragment shader YCbCr texture > support. > [08-07-10 22:48:44.903] CONFIG: Use pixel buffers: true > [08-07-10 22:48:44.903] CONFIG: Multisample samples: 1 > [08-07-10 22:48:44.903] CONFIG: Auto vsync > [08-07-10 22:48:45.038] CONFIG: Vertical Refresh Rate: 75.0247 > [08-07-10 22:48:45.127] CONFIG: OpenGL configuration: > [08-07-10 22:48:45.127] CONFIG: OpenGL version: 2.1.2 NVIDIA 169.12 > [08-07-10 22:48:45.127] CONFIG: OpenGL vendor: NVIDIA Corporation > [08-07-10 22:48:45.128] CONFIG: OpenGL renderer: GeForce 8400 GS/ > PCI/SSE2 > [08-07-10 22:48:45.128] CONFIG: Using fragment shader YCbCr texture > support. > [08-07-10 22:48:45.128] CONFIG: Using NVidia texture rectangle > extension. > [08-07-10 22:48:45.128] CONFIG: Not using multisampling. > [08-07-10 22:48:45.128] CONFIG: Using pixel buffer objects. > [08-07-10 22:48:45.128] CONFIG: Max. texture size is 8192 > [08-07-10 22:48:45.129] ERROR: VIDIOC_QUERYCAP error > Segmentation fault > Segmentation fault. Are you using Ubuntu 8.04? Give us some more hints about your setup! bye -- OXullo Intersecans 0 2 L > Outside Standing Level http://www.02L.net _______________________________________________ libavg-users mailing list [email protected] https://mail.datenhain.de/mailman/listinfo/libavg-users
