I tried it without success
I think the problem is that the server drops the chunks only on transcoded streams, not on source.
For exapmple:
WARN server comment 2014-04-14 16:15:44 - - - - - 208.283 - - - - - - - DvrStreamStoreBase.storeChunks[live-ror/definst/nature2_480p/nature2_480p.0] : Skipping chunk. A/V durations differ by 2027 ms, more than allowed 2000 ms. aDuration=8777 vDuration=6750
WARN server comment 2014-04-14 16:15:44 - - - - - 208.284 - - - - - - - DvrStreamStoreBase.storeChunks[live-ror/definst/nature2_160p/nature2_160p.0] : Skipping chunk. A/V durations differ by 2027 ms, more than allowed 2000 ms. aDuration=8777 vDuration=6750
WARN server comment 2014-04-14 16:15:44 - - - - - 208.285 - - - - - - - DvrStreamStoreBase.storeChunks[live-ror/definst/nature2_360p/nature2_360p.0] : Skipping chunk. A/V durations differ by 2027 ms, more than allowed 2000 ms. aDuration=8777 vDuration=6750
WARN server comment 2014-04-14 16:15:44 - - - - - 208.285 - - - - - - - DvrStreamStoreBase.storeChunks[live-ror/definst/nature2_240p/nature2_240p.0] : Skipping chunk. A/V durations differ by 2027 ms, more than allowed 2000 ms. aDuration=8777 vDuration=6750
And, then i see out of sync about 10 seconds between source and transcoded streams.