[linux-dvb] Re: DVB DVR driver problem, my real fix now!

[Marcus Metzler <mocm@mocm.de>]

>>>>> "Patrick" == Patrick Boettcher <patrick.boettcher@desy.de> writes:

    Patrick> On Wed, 2 Feb 2005, Jan Panteltje wrote:
    >> The solution in my case is to increase the dvr buffer in the
    >> driver.  old: #define DVR_BUFFER_SIZE (10*188*1024) I changed
    >> it to: #define DVR_BUFFER_SIZE (100*188*1024) and then
    >> recompiled / reloaded the driver modules.  The problem only
    >> happens when you use HUGE data streams, for example astra2
    >> 10773.00 h the whole transponder (all BBC channels etc..).  In
    >> this case the buffer overflows....  The data rate here I
    >> estimate at about 36 Mbps (16 GB / hour), and this may happen
    >> on HDTV too.  So maybe the DVR buffer size default should be a
    >> bit bigger then what it now is.  One can also solve the problem
    >> by setting update -1 1000 update -5 100 (see man bdflush or
    >> update --help) This empties the buffer more often.  But bigger
    >> buffer is better I think.

    Patrick> Could you please send patches made with 'diff -u' or 'cvs
    Patrick> diff -u' when you use dvb-kernel CVS? It is easier to
    Patrick> read for everyone. Not that I'm able to understand
    Patrick> completly what you were writing, but the ones who are
    Patrick> able to will appreciate it :).

I don't think there is anyone able to understand his patch.

Marcus

-- 
/--------------------------------------------------------------------\
| Dr. Marcus O.C. Metzler        |                                   |
| mocm@metzlerbros.de            | http://www.metzlerbros.de/        |
\--------------------------------------------------------------------/
 |>>>             Quis custodiet ipsos custodies                 <<<|