MrFreaky schrieb:
yes it compiles great:make -C /lib/modules/2.6.28-6-generic/build SUBDIRS=/home/studio/ microdia modules make[1]: se ingresa al directorio `/usr/src/linux-headers-2.6.28-6- generic' CC [M] /home/studio/microdia/sn9c20x-usb.o CC [M] /home/studio/microdia/sn9c20x-v4l2.o CC [M] /home/studio/microdia/sn9c20x-sysfs.o CC [M] /home/studio/microdia/sn9c20x-dev.o CC [M] /home/studio/microdia/sn9c20x-queue.o CC [M] /home/studio/microdia/sn9c20x-bridge.o CC [M] /home/studio/microdia/omnivision.o CC [M] /home/studio/microdia/micron.o CC [M] /home/studio/microdia/hv7131r.o CC [M] /home/studio/microdia/sn9c20x-debugfs.o LD [M] /home/studio/microdia/sn9c20x.o Building modules, stage 2. MODPOST 1 modules CC /home/studio/microdia/sn9c20x.mod.o LD [M] /home/studio/microdia/sn9c20x.ko make[1]: se sale del directorio `/usr/src/linux-headers-2.6.28-6- generic' Keeping on following the instructions is just fine too: stu...@studio-desktop:~/microdia$ sudo insmod ./sn9c20x.ko insmod: error inserting './sn9c20x.ko': -1 Unknown symbol in module stu...@studio-desktop:~/microdia$ sudo modprobe videodev stu...@studio-desktop:~/microdia$ sudo modprobe compat-ioctl32 stu...@studio-desktop:~/microdia$ sudo insmod ./sn9c20x.ko Then this command, produces this output: LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so mplayer tv:// \-tv driver=v4l2:width=640:height=480:fps=25:device=/dev/video0 -vo x11MPlayer 1.0rc2-4.3.2 (C) 2000-2007 MPlayer Team CPU: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (Family: 6, Model: 15, Stepping: 11) CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Compiled with runtime CPU detection. mplayer: could not connect to socket mplayer: No such file or directory Failed to open LIRC support. You will not be able to use your remote control. Playing tv://. TV file format detected. Selected driver: v4l2 name: Video 4 Linux 2 input author: Martin Olschewski <[email protected]> comment: first try, more to come ;-) Selected device: SN9C20x USB 2.0 Webcam Driver Capabilites: video capture read/write streaming supported norms: inputs: 0 = Webcam;v4l2: ioctl get input failed: Invalid argument Current input: 1 Current format: unknown (0x30323953) tv.c: norm_from_string(pal): Bogus norm parameter, setting default. v4l2: ioctl enum norm failed: Invalid argument Error: Cannot set norm! Selected input hasn't got a tuner! v4l2: ioctl set mute failed: Invalid argument v4l2: ioctl query control failed: Invalid argument v4l2: ioctl query control failed: Invalid argument xscreensaver_disable: Could not find XScreenSaver window. GNOME screensaver disabled ========================================================================== Opening video decoder: [raw] RAW Uncompressed Video VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. VO: [x11] 640x480 => 640x480 Planar YV12 [swscaler @ 0xf86610]SwScaler: using unscaled yuv420p -> rgb32 special converter Selected video codec: [rawyv12] vfm: raw (RAW YV12) ========================================================================== Audio: no sound Starting playback... v4l2: select timeout v4l2: select timeout ??% ??,?% 0 0 and so on.... The video that it produces...: http://groups.google.com/group/microdia/web/microdia_capture.jpg?hl=en but then, its using another compression and resolution than it should. How do i switch this to a different compression? doing a ctrl+c: MPlayer interrupted by signal 2 in module: video_read_frame v4l2: select timeout libv4l2: error dequeuing buf: Invalid argument MPlayer interrupted by signal 8 in module: free_demuxer GNOME screensaver enabled
Thanks for that information. You can look up the video format in the dmesg output. Currently the possibilities are: - RAW (bayer pattern) - JPEG - i420 If you have USB 2.0 and libv4l >=0.5.8 the driver will default to i420.If you have an older version of libv4l or USB 1.0 or 1.1 it will default to JPEG. Or sometimes to bayer.
GWater
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