[mythtv-users] ivtv Maximum bitrate
George Mari
george_mythusers at mari1938.org
Tue Jun 22 13:27:31 UTC 2010
On 06/22/2010 07:37 AM, James Crow wrote:
>
> [deleted]
>
> I tried setting the governor back to ondemand and the up_threshold to
> 20. This resulted in a CPU freq of 1000.00 MHz. Or the slowest this
> CPU can clock. I may have to set the threshold all the way down to 10.
>
> Any ideas welcome.
>
Increase the size of your buffers for the ivtv driver. I have the
following line in the equivalent of modprobe.conf:
options ivtv enc_mpg_buffers=16 enc_vbi_buffers=8
This increases the encoder mpeg buffer size to 16MB from a default of
4MB, and the VBI buffer size to 8MB from a default of 1MB.
Type "modinfo ivtv" to see all the options you can pass to the driver.
I would gradually increase the buffer size until the errors go away.
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