audio lags behind behind after short time ("diff" heavily increase [10+ times]) and never "recovers"

[DLLDev]

after a short time of playing the audio starts lagging behind an do not recover.

diff shortly after start playing the stream:
https://ibb.co/LRTR4rf

diff shortly after a minute:
https://ibb.co/37SBkgH

diff when muting and unmute:
https://ibb.co/DgwrXvg

im streaming flv over http and ws. the results are the basically the same.
watching the stream with ffplay works fine.

[leviance]

You can see AUDIO_SYNC_VIDEO_DIFF variable is set with a value is 1000, so only when the audio delay is larger than 1000 jessibuca will start drop frame, but jessibuca does not drop audio until no delay between the audio and video it will drop the audio frame until delay smaller than 1000 and stop (ex: 990) so you still receive audio delay. You can reduce the value of AUDIO_SYNC_VIDEO_DIFF for a smaller delay between audio and video.