调节音量会崩溃

[Just-D]

手机是Android10.0的，多音轨播放调节音量，崩溃。
10-26 16:30:52.731 28413 28413 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
10-26 16:30:52.732 28413 28413 F DEBUG : Build fingerprint: 'HONOR/LRA-AL00/HWLRA-H:10/HONORLRA-AL00/10.1.0.146C00:user/release-keys'
10-26 16:30:52.732 28413 28413 F DEBUG : Revision: '0'
10-26 16:30:52.732 28413 28413 F DEBUG : ABI: 'arm'
10-26 16:30:52.736 28413 28413 F DEBUG : SYSVMTYPE: Maple
10-26 16:30:52.736 28413 28413 F DEBUG : APPVMTYPE: Art
10-26 16:30:52.736 28413 28413 F DEBUG : Timestamp: 2020-10-26 16:30:52+0800
10-26 16:30:52.736 28413 28413 F DEBUG : pid: 28319, tid: 28409, name: mpegaudioplayer >>> io.github.iamyours.ffmpegaudioplayer <<<
10-26 16:30:52.736 28413 28413 F DEBUG : uid: 10434
10-26 16:30:52.736 28413 28413 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x1
10-26 16:30:52.736 28413 28413 F DEBUG : Cause: null pointer dereference
10-26 16:30:52.736 28413 28413 F DEBUG : r0 c327bb6c r1 c2fe7139 r2 00000000 r3 00000000
10-26 16:30:52.736 28413 28413 F DEBUG : r4 c2fe7138 r5 c327bb6c r6 c307b490 r7 00000001
10-26 16:30:52.736 28413 28413 F DEBUG : r8 c69c20f0 r9 00000000 r10 0000000a r11 c327c230
10-26 16:30:52.736 28413 28413 F DEBUG : ip c4116c70 sp c327bb50 lr c4017548 pc c4017228
10-26 16:30:52.736 28413 28413 F DEBUG :
10-26 16:30:52.736 28413 28413 F DEBUG : backtrace:
10-26 16:30:52.736 28413 28413 F DEBUG : #00 pc 0008b228 /data/app/io.github.iamyours.ffmpegaudioplayer-4cK57c6q3O54iHQnFR7Zbw==/lib/arm/libavfilter-6.so

我把代码中，updateFilters上面注释掉的initFilters打开，然后不用updateFilters，就没有崩溃。