[FFmpeg-devel] FFv1.3: Final testing - Results/Multipass

[Peter B.]

On 11/06/2012 12:04 AM, Michael Niedermayer wrote:
> Yes, i need someone to run the tests i ask him to run.

> [...] i would have to do to get a nicely formatted table of EXACTLY the test i need.
I hope I figured it out correctly now.

My previous table had errors: I was combining some results together
(wrong SQL), so some columns were identical.
The previous table only contained QCIF resolutions, whereas the new
table also contains larger resolutions (up to 4CIF). It is interesting
to see the relationship between GOP compression-gain and video resolution.

As HTML format seems fine for the table, here:
http://download.das-werkstatt.com/pb/mthk/ffv1_stats/20121106/ffv1_stats.html

As noted on the page, the values are in "size-difference in percent", as
initially requested in Michael's first example for the result table. I
didn't add the '%' sign, because then I had problems in LibreOffice
using the min/avg/max formulas.

The table shows the size gain of GOP=300 compared to GOP=1. Negative
values mean "smaller".

Colors:
red = This encoding version has the worst size gain
green = This encoding version has the best size gain


I know it contains more than 10 videos, and not all colorspaces, but it
was quicker for me right now to keep it like that. I hope that's OK.

Regards,
Pb