Revert "path for synology nas"

This reverts commit d3e22d9989998b5446c2c81c2581daa0203d45fb.
Revert "Revert "path for synology nas""

This reverts commit 090f964aad72e1782574d6eab5b0183d10d6fea2.
Revert "ac3 fixed for china dvb-c.support streamguard ca."

This reverts commit 4aaaa8f3f11f27501260559bf09148895c1fddc3.
Revert "Revert "ac3 fixed for china dvb-c.support streamguard ca.""

This reverts commit f2c6b8496fef1c96a480964cde6cf34838eedf0e.
解决福建有线丢失AC3音频问题，解决smsx，newcam 解密问题。