No, I checked this - we only pay for a decode licence. Encode will add more cost.
According to this http://www.mpegla.com/main/pro.....ummary.pdf
(probably what mccp was referring to), there is nothing to pay under 100k units / year. Above, it's an extra $0.20 but it opens interesting options for video-conferencing and video streaming.
Anyway, when you say "we only pay", who's "we"? The R.Pi foundation? Or Broadcom?
Is the decode licensing price already included by Broadcom when it sells the BCM2835 to the R.Pi foundation?
(sorry for being insistent, I just want to know the gory details )