-extern const uint16_t avpriv_mpa_bitrate_tab[2][3][15];
-extern const uint16_t avpriv_mpa_freq_tab[3];
-extern const int32_t ff_mpa_enwindow[257];
+extern av_export_avcodec const uint16_t avpriv_mpa_bitrate_tab[2][3][15];
+extern av_export_avcodec const uint16_t avpriv_mpa_freq_tab[3];