hi Hans, you are absolutely right. My dmesg has the following warning:
[ 2660.797178] ivtv0: All encoder YUV stream buffers are full. Dropping data. [ 2660.797185] ivtv0: Cause: the application is not reading fast enough. [ 2661.678946] ivtv1: All encoder YUV stream buffers are full. Dropping data. [ 2661.678952] ivtv1: Cause: the application is not reading fast enough. Do you have a suggestion on how to fix this problem? I suppose I can upgrade my kernel, but I wonder if there is an alternative way to read videos from these tuners. I'm very new to V4L2. Thanks in advance, Elvis > From: [EMAIL PROTECTED] > To: [email protected] > Date: Fri, 7 Mar 2008 18:15:52 +0100 > Subject: Re: [ivtv-users] Possible to grab images repeatitively from 2 > pvr-150? *code attached* > > > There is a bug in the ivtv driver that was only fixed in kernel 2.6.24. > What happens is that if the application cannot quite keep up with the > video stream the internal buffers will become full. At that moment > buffers will be dropped (you probably get some message about that in > the kernel log) and in kernels < 2.6.24 the YUV frames would become > misaligned. This bug is fixed in kernel 2.6.24. > > I suspect this is what your problem is. Check your kernel log: if you > capture from two video3x devices then you probably see "Dropping data" > messages. > > > Regards, > > Hans > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users _________________________________________________________________
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