Audio stutter when using playback speed with ac3
The audio stutter when playback speed is changed, with ac3, even a little (1.05).
this started to happens on my Shield Tablet K1 in october, with ac3 tracks (but not with aac).
The logs show many rows like this :
libvlc audio output: timing screwed, reset positions
libvlc audio output: timing screwed, reset positions
libvlc audio output: buffer too late (-62206 us): dropped
libvlc audio output: playback too late (73004): flushing buffers
libvlc audio output: playback too late (91578): up-sampling
libvlc audio output: buffer too late (-64997 us): dropped
libvlc audio output: timing screwed, reset positions
Here is the full log : vlc-android.log
I tested with nightly builds, it broke between VLC-Android-3.0.13-20180928-0244-ARMv7.apk (working) and VLC-Android-3.0.13-20181026-0248-ARMv7.apk (not working).
Unfortunately it's a big gap, buildbot was broken at that time, it's when av1 coded was introduced and ndk had to be changed.
I could not find a commit which could explain this, and i can't reproduce on desktop, maybe it's a side effect of the ndk/compiler change ?