vlc often broke on mac osx 10.12

[AndyZhengSeven]

SOS，SOS

when I play http stream on vlc 4.0.0，it·s often broke on Mac osx 10.12，with bug below

[00007fc52b0302f0] main input error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 300 ms)
[00007fc52b0302f0] main input debug: ES_OUT_RESET_PCR called
[00007fc52b0302f0] main input debug: Buffering 0%
[00007fc52b0302f0] main input debug: Buffering 83%
[00007fc52b0302f0] main input debug: Stream buffering done (500 ms in 1 ms)
[00007fc52e691c50] main decoder error: buffer deadlock prevented

I used some vlc functions libvlc_video_set_callbacks(_vlc_player, lock, NULL, NULL, this); libvlc_video_set_format(_vlc_player, "RGBA"/*"RV32"*/, _width, _height, _width * 4);