extern const uint16_t ff_eac3_default_chmap[8];
extern const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1];
extern const uint8_t ff_ac3_bin_to_band_tab[253];
+extern const uint64_t ff_eac3_custom_channel_map_locations[16][2];
+
/** Custom channel map locations bitmask
* Other channels described in documentation: