mpegts tables: add another mutex protection to fastswitch
mpegts tables: and another table mutex protections to scan routines
mpegts: table dispatch - replace assert with debug log
settings - use alloca() in hts_settings_makedirs()
mpegts: table dispatch - another optimization
mpegts: table dispatch - a quick fix for the previous patch
mpegts table dispatch: added back the assert to see the bug
mpegts: add assert to mpegts_table_release() to check refcount