The main for loop at line 894 short circuits if a source group does not
have a simulcast semantic. If there are no simulcast source groups at
all, the ssrc2stream hash map is never populated, triggering a NPE
after the main for loop.
This change detects that there were no simulcast groups and skips
running those final steps.
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-- Commit Summary --
* Prevent NullPointerException when there are no simulcast source groups.
-- File Changes --
M src/main/java/org/jitsi/videobridge/VideoChannel.java (20)
-- Patch Links --
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