BATC Forum

Hi alls,
Someone can explain to me the formula for biterate calculation?

if %SR%==333 (
if %FEC%==1/2 set VIDRATE=428571
if %FEC%==2/3 set VIDRATE=571429
.......

I don't find consistency with the informations I have.
I think these values are total biterate ?? (video BR+sound BR+tables+null packets) please can you confirm.
Super 73 Franck

Hi Franck

I submitted that batch file after the tests described here: viewtopic.php?f=103&t=5282

The bitrates were found by trial and error, starting with the original MPEG-2 settings and adjusting them to get the fewest ffmpeg errors and best stream quality on my setup.

73
Ray M0DHP

Hi Ray,
I understood now the differences between the theory and values in this file, but I'm not surprised because it is also the approach of Jean Pierre F6DZP to do these adjustements by trial test.
Good information for speed preset, I did not know .
73 Franck F1SSF