+} H261Context;
+
+#define MB_TYPE_H261_FIL 0x800000
+
+extern uint8_t ff_h261_rl_table_store[2][2 * MAX_RUN + MAX_LEVEL + 3];
+
+extern const uint8_t ff_h261_mba_code[35];
+extern const uint8_t ff_h261_mba_bits[35];
+extern const uint8_t ff_h261_mtype_code[10];
+extern const uint8_t ff_h261_mtype_bits[10];
+extern const int ff_h261_mtype_map[10];
+extern const uint8_t ff_h261_mv_tab[17][2];
+extern const uint8_t ff_h261_cbp_tab[63][2];
+extern RLTable ff_h261_rl_tcoeff;
+
+void ff_h261_loop_filter(MpegEncContext *s);
+void ff_h261_common_init(void);
+
+int ff_h261_get_picture_format(int width, int height);
+void ff_h261_reorder_mb_index(MpegEncContext *s);
+void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64],
+ int motion_x, int motion_y);
+void ff_h261_encode_picture_header(MpegEncContext *s, int picture_number);
+void ff_h261_encode_init(MpegEncContext *s);