RMT: stopping an rmt_transmit in infinite loop transmit mode

[fanfanlatulipe26]

I have rmt_transmit ongoing , sending always the same pattern ( loop count = -1 in the transmit configuration)
Now and then I need to change the pattern but only when the previous pattern is fully transmited.

The transmit is stopped by rmt disable() but it seems that the transmit is stopped anywhere in the current loop.
Is there a way to stop it only at the end of a loop ?