A lost packet was concealed by decoding "nothing" into a buffer sized
for the longest Opus frame, and Opus fills whatever it is given: every
lost packet played 120 ms of made-up audio in place of 20 ms, piling up
delay on that speaker's line.
Decoders now conceal through their own call that takes the length to
make up, and the stream asks for the length of the last packet it got.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ericek111
75d9606231