Re: [Linphone-users] No video with uvcvideo

[Akshay Mishra]

Hi,

I had a similar error on my machine with uvcvideo. I was able to
resolve it by playing with the upload/download bandwidth (changing
from default 0 to 512 or higher)

hth,
Akshay

On Tue, Apr 22, 2008 at 5:50 PM, Simon Morlat <address@hidden> wrote:
> Hi,
>
>  I have the same problem with a uvc camera.
>  Seems to be related with a threading bug in linphone's code or in the linux
>  USB stack.
>  THe main difference between linphone and all other apps is that linphone is
>  using 2 threads to control the driver while others don't.
>  I'm working at refactoring the code to have only one thread talking to the
>  driver.
>
>  Simon
>
>  Le Tuesday 04 March 2008 04:54:51 Sergei Klink, vous avez écrit :
>
>
> > Hello,
>  >
>  > It seems that linphone can't get the video from my webcam. On
>  > startup, I just get a green window or (sometimes) a segfault.
>  >
>  > Console is spammed with messages like:
>  >
>  > [jpegls @ 0x2b50fc49da20]picture size invalid (18681x32164)
>  > [jpegls @ 0x2b50fc49da20]only 8 bits/component accepted
>  > [jpegls @ 0x2b50fc49da20]mjpeg: unsupported coding type (c8)
>  > [jpegls @ 0x2b50fc49da20]only 8 bits/component accepted
>  > [jpegls @ 0x2b50fc49da20]picture size invalid (50175x65535)
>  > [jpegls @ 0x2b50fc49da20]picture size invalid (18681x32164)
>  > [jpegls @ 0x2b50fc49da20]only 8 bits/component accepted
>  > [jpegls @ 0x2b50fc49da20]mjpeg: unsupported coding type (cd)
>  > [jpegls @ 0x2b50fc49da20]invalid id 205
>  > [jpegls @ 0x2b50fc49da20]picture size invalid (50175x65535)
>  > [jpegls @ 0x2b50fc49da20]picture size invalid (18681x32164)
>  > [jpegls @ 0x2b50fc49da20]only 8 bits/component accepted
>  > [jpegls @ 0x2b50fc49da20]mjpeg: unsupported coding type (cd)
>  > [jpegls @ 0x2b50fc49da20]invalid id 205
>  >
>  > I'm using linphone 2.1.1 on AMD64 Gentoo, with the following webcam
>  > (Dell Inspiron 1720 built-in):
>  >
>  > 05a9:2640 OmniVision Technologies, Inc.
>  >
>  > Getting video directly with ffmpeg (ffmpeg -f video4linux2 -s 320x240
>  > -i /dev/video0 out.avi) works fine, as do other applications (ekiga,
>  > kopete, etc.)
>  >
>  > Any clues would be appreciated...
>  >
>  > (I've already tried several versions of ffmpeg as well as uvcvideo)
>  >
>  >
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>
>
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