-/* h263.c, h263dec.c */
-int ff_h263_decode_init(AVCodecContext *avctx);
-int ff_h263_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- const uint8_t *buf, int buf_size);
-int ff_h263_decode_end(AVCodecContext *avctx);
-void h263_encode_mb(MpegEncContext *s,
- DCTELEM block[6][64],
- int motion_x, int motion_y);
-void mpeg4_encode_mb(MpegEncContext *s,
- DCTELEM block[6][64],
- int motion_x, int motion_y);
-void h263_encode_picture_header(MpegEncContext *s, int picture_number);
-void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
-void h263_encode_gob_header(MpegEncContext * s, int mb_line);
-int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
- int *px, int *py);
-void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
- int dir);
-void ff_set_mpeg4_time(MpegEncContext * s);
-void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
-void h263_encode_init(MpegEncContext *s);
-void h263_decode_init_vlc(MpegEncContext *s);
-int h263_decode_picture_header(MpegEncContext *s);
-int ff_h263_decode_gob_header(MpegEncContext *s);
-int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
-void ff_h263_update_motion_val(MpegEncContext * s);
-void ff_h263_loop_filter(MpegEncContext * s);
-void ff_set_qscale(MpegEncContext * s, int qscale);
-int ff_h263_decode_mba(MpegEncContext *s);
-void ff_h263_encode_mba(MpegEncContext *s);
-
-int intel_h263_decode_picture_header(MpegEncContext *s);
-int flv_h263_decode_picture_header(MpegEncContext *s);
-int ff_h263_decode_mb(MpegEncContext *s,
- DCTELEM block[6][64]);
-int ff_mpeg4_decode_mb(MpegEncContext *s,
- DCTELEM block[6][64]);
-int h263_get_picture_format(int width, int height);
-void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
-void ff_mpeg4_clean_buffers(MpegEncContext *s);
-void ff_mpeg4_stuffing(PutBitContext * pbc);
-void ff_mpeg4_init_partitions(MpegEncContext *s);
-void ff_mpeg4_merge_partitions(MpegEncContext *s);
-void ff_clean_mpeg4_qscales(MpegEncContext *s);
-void ff_clean_h263_qscales(MpegEncContext *s);
-int ff_mpeg4_decode_partitions(MpegEncContext *s);
-int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
-int ff_h263_resync(MpegEncContext *s);
-const uint8_t *ff_h263_find_resync_marker(const uint8_t *p, const uint8_t *end);
-int ff_h263_get_gob_height(MpegEncContext *s);
-void ff_mpeg4_init_direct_mv(MpegEncContext *s);
-int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
-void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code);
-
-