> It depends on what type of compresion will you select -
>
> mpeg compression is far less CPU intensive then DivX encoding.
> (Though I think XviD encoding is pretty fast)

I understand this. However, 320x240 at 25fps is not so taxing that you would
ever expect 70% of the frames to be dropped unless the system is very slow
to begin with or under extreme load. This seems to affect any codec I choose
with avirec (eg. same results with DivX and Huffyuv, which is not CPU
intensive, or shouldn't be anyway). The fact that the frames are dropped in
capture rather than dropped in encoding suggests to me that there is a
problem with the capture end rather than the encoding end. I also still get
a segfault at the end of listing the codecs (avirec -l), but as this doesn't
seem to be affecting actual capture I'm not too worried. However if I can do
anything to help you fix this (gdb trace, etc.) then let me know.

> Also are you using preview mode or overlay mode ?

I'm not sure, how can I determine this? I understand the question, just not
sure how this is set with avifile.

> What is your hardware (CPU, capture card)

My apologies, I should have included this in my first message. The system I
am using is a Celeron 1.1GHz on a Via 686B/694T board, 128MB RAM. The
capture card is a Dynalink TView99 (aka CPH051, a fairly standard
Bt878-based capture card). I am writing to an ATA-100 Seagate Barracuda 4
drive with DMA set up, so hard drive performance should be pretty good.

> The problem with all those sample applications is that I'm mostly
> the only one who works on the them - and when there are  better or
> more important things to do they are left unmodified and buggy
> and are rather fixed only occasionaly...

OK. But if I test avirec and find bugs, I presume you are still interested
in hearing about it? I do understand you have limited time to work on
avifile and probably are more interested in spending the time you have
working on avifile's architecture and video playback rather than capture.
However it does seem to me that there are very few decent open source
capture applications for Linux that are being actively maintained these
days.

Thanks,
Paul

PS apologies for sending this twice, I meant to post back to the list the
first time.


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