LAV与Haai的分离器的优先级问题

[jasonwang]

LAV与Haai的分离器的优先级问题，到底是靠什么来决定的？我试图设置了LAV优先于Haai来分离，可还是用Haai的分离器，设置图如下所示：

假定播放的文件为MKV，播放器会根据扩展名去选择相应的分离器，那意思着是不是如下地方来完成哪个分离器的优先级最高？
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Media Type\Extensions\.mkv]
"Source Filter"="{171252A0-8820-4AFE-9DF8-5C92B2D66B04}"

如上所示来自注册表，这里我也测试了，目前{171252A0-8820-4AFE-9DF8-5C92B2D66B04}指定的是LAV，原始的指定的是Haai
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{083863F1-70DE-11d0-BD40-00A0C911CE86}\Instance\{171252A0-8820-4AFE-9DF8-5C92B2D66B04}]
"FriendlyName"="LAV Splitter"
"CLSID"="{171252A0-8820-4AFE-9DF8-5C92B2D66B04}"
"FilterData"=hex:02,00,00,00,04,00,81,ff,02,00,00,00,00,00,00,00,30,70,69,33,\
0c,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,31,70,69,33,00,\
00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,00,00,00,00,30,74,79,33,00,00,\
00,00,50,00,00,00,60,00,00,00,83,eb,36,e4,4f,52,ce,11,9f,53,00,20,af,0b,a7,\
70,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

根据上面的测试，彻底迷茫了，这个优先级如何来进行手动设置吗？或者指点下原理即可。