iOS IJKPlayer常见问题

一. IJKPlayer support for soft and hard decoding of video rotation 竖屏录制视频横屏播放问题

https://github.com/bilibili/ijkplayer/pull/4594/commits/43dde5ae320022c044b242b20d68e76f6b0e77c8

二. IJKPlayer Main Thread Checker: UI API called on a background thread: -[UIView layer]

https://github.com/bilibili/ijkplayer/pull/4739/commits/9e3ee39ac2ac18b2e35296ac56428fc3304d341e

三. IJKSDLHudViewController导致崩溃的问题

https://github.com/bilibili/ijkplayer/issues/1298

四. iOS11播放只有声音没有图像

https://github.com/bilibili/ijkplayer/issues/3643