[streaming] late buffer for mux input

[Zoilo Gomez]

I have a couple of Twinhan Cab/CI 2031(0) DVB-C cards, plus 1 KNC1 DVB-C 
card + CI.

In principle everything is working (more or less), but I need some 
fine-tuning.

I get a lot of "late buffer for mux input" messages all the time. This 
happens roughly simultaneously on both input cards. The CPU is a 2.4 GHz 
Celeron, and cpu idle time is roughly 90%, so that can hardly be the 
problem. Sometimes the video gets choppy during these messages, 
sometimes no difference can be noted.

If I play a full-quality MPEG2 movie from the HDD, this message never 
occurs, so it is clearly related to the input cards. Also video quality 
is always 100% (no chopping).

If I understand things correctly, the meaning of this message is that 
the (processed) data arrives (too?) late to be muxed into the output 
stream ("underflow") ?

But why?

I am not doing any transcoding, just straight streaming ....

And is there a way to increase the buffers, such that this underflow 
problem can be absorbed into the buffers?

Or perhaps I am seeing this all wrong, and someone can enlighten me how 
to eliminate this problem?

Thank you all and best regards,

Z.

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