#define VISUAL_OBJ_STARTCODE 0x1B5
#define VOP_STARTCODE 0x1B6
+typedef struct Mpeg4DecContext {
+ MpegEncContext m;
+
+ ///< number of bits to represent the fractional part of time
+ int time_increment_bits;
+ int shape;
+ int vol_sprite_usage;
+ int sprite_brightness_change;
+ int num_sprite_warping_points;
+ ///< sprite trajectory points
+ uint16_t sprite_traj[4][2];
+ ///< sprite shift [isChroma]
+ int sprite_shift[2];
+
+ // reversible vlc
+ int rvlc;
+ ///< could this stream contain resync markers
+ int resync_marker;
+ ///< time distance of first I -> B, used for interlaced b frames
+ int t_frame;
+
+ int new_pred;
+ int enhancement_type;
+ int scalability;
+ int use_intra_dc_vlc;
+ ///< QP above whch the ac VLC should be used for intra dc
+ int intra_dc_threshold;
+
+ /* bug workarounds */
+ int divx_version;
+ int divx_build;
+ int xvid_build;
+ int lavc_build;
+ ///< flag for having shown the warning about divxs invalid b frames
+ int showed_packed_warning;
+ int vol_control_parameters; /**< does the stream contain the low_delay flag,
+ * used to work around buggy encoders. */
+
+ int cplx_estimation_trash_i;
+ int cplx_estimation_trash_p;
+ int cplx_estimation_trash_b;
+} Mpeg4DecContext;
+
/* dc encoding for mpeg4 */
extern const uint8_t ff_mpeg4_DCtab_lum[13][2];
extern const uint8_t ff_mpeg4_DCtab_chrom[13][2];
void ff_set_mpeg4_time(MpegEncContext *s);
void ff_mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
-int ff_mpeg4_decode_picture_header(MpegEncContext *s, GetBitContext *gb);
+int ff_mpeg4_decode_picture_header(Mpeg4DecContext *ctx, GetBitContext *gb);
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);
-int ff_mpeg4_decode_partitions(MpegEncContext *s);
+int ff_mpeg4_decode_partitions(Mpeg4DecContext *ctx);
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
-int ff_mpeg4_decode_video_packet_header(MpegEncContext *s);
+int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx);
void ff_mpeg4_init_direct_mv(MpegEncContext *s);
+int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
/**
*