[XviD-devel] [QUESTION] how 2pass2 plugin work?

[Edouard Gomez]

suxen_drol (suxen_drol at hotmail.com) wrote:
> 2pass1/2 todo list:
> * futher testing;

ATM, i only performed basic tests with the foreman sequence.

The first pass always works (not that hard, isnt'it ;-)

My first test was just with IP frames, and a 2pass target bitrate of
512kb/s, it worked just fine.

My second test was with 2 max_bframes. First pass goes ok. But when i
perform the second pass, i get this:

$ ./xvid_encraw -pass2 stats.log 512000 -i
/mnt/vrac/xvid-test/sequences/foreman-352x288.yuv -w 352 -h 288 -max_bframes 2 
xvid_encraw - raw mpeg4 bitstream encoder written by Christoph Lampert 2002-2003
undersize warning
middle frame size for asymmetric curve compression: -2147483648
middle frame size for asymmetric curve compression: -2147483648
middle frame size for asymmetric curve compression: -2147483648
    0: key=1, time=    14, length=  27611
Floating point exception

If i do  the same test with only ipframes, and  then force an "undersize
warning"  setting the  bitrate to  a very  low value  (let's  say 512b/s
instead of 512kb/s) then it's just the same: Floating point exception. 

I'll track that tomorrow, but the  first item on the ToDo list has still
to be achieved.

Anyone else with tests/results ?

-- 
Edouard Gomez-------------- next part --------------
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