--- decoder.h	2002/03/08 02:44:29	1.1
+++ decoder.h	2002/07/09 01:37:22	1.9
@@ -1,12 +1,53 @@
+/*****************************************************************************
+ *
+ *  XVID MPEG-4 VIDEO CODEC
+ *  - Decoder header -
+ *
+ *  This program is an implementation of a part of one or more MPEG-4
+ *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
+ *  to use this software module in hardware or software products are
+ *  advised that its use may infringe existing patents or copyrights, and
+ *  any such use would be at such party's own risk.  The original
+ *  developer of this software module and his/her company, and subsequent
+ *  editors and their companies, will have no liability for use of this
+ *  software or modifications or derivatives thereof.
+ *
+ *  This program is free software ; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation ; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program ; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ ****************************************************************************/
+/*****************************************************************************
+ *
+ *  History
+ *
+ *  - 13.06.2002 Added legal header - Cosmetic
+ *
+ *  $Id: decoder.h,v 1.9 2002/07/09 01:37:22 chenm001 Exp $
+ *
+ ****************************************************************************/
+
 #ifndef _DECODER_H_
 #define _DECODER_H_
 
 #include "xvid.h"
-
 #include "portab.h"
 #include "global.h"
 #include "image/image.h"
 
+/*****************************************************************************
+ * Structures
+ ****************************************************************************/
 
 typedef struct
 {
@@ -18,15 +59,21 @@
 	uint32_t quant_type;
 	uint32_t quarterpel;
 
+	uint32_t interlacing;
+	uint32_t top_field_first;
+	uint32_t alternate_vertical_scan;
+
 	// image
 
 	uint32_t width;
 	uint32_t height;
 	uint32_t edged_width;
 	uint32_t edged_height;
-	
+
 	IMAGE cur;
-	IMAGE refn;
+	IMAGE refn[3];				// 0   -- last I or P VOP
+	// 1   -- first I or P
+	// 2   -- for interpolate mode B-frame
 	IMAGE refh;
 	IMAGE refv;
 	IMAGE refhv;
@@ -35,16 +82,33 @@
 
 	uint32_t mb_width;
 	uint32_t mb_height;
-	MACROBLOCK * mbs;
+	MACROBLOCK *mbs;
 
-	
-} DECODER;
+	// for B-frame
+	int32_t frames;				// total frame number
+	int8_t scalability;
+	VECTOR p_fmv, p_bmv;		// pred forward & backward motion vector
+	MACROBLOCK *last_mbs;		// last MB
+	int64_t time;				// for record time
+	int64_t time_base;
+	int64_t last_time_base;
+	int64_t last_non_b_time;
+	uint32_t time_pp;
+	uint32_t time_bp;
+	uint8_t low_delay;			// low_delay flage (1 means no B_VOP)
+}
+DECODER;
+
+/*****************************************************************************
+ * Decoder prototypes
+ ****************************************************************************/
 
 void init_decoder(uint32_t cpu_flags);
 
 int decoder_create(XVID_DEC_PARAM * param);
 int decoder_destroy(DECODER * dec);
-int decoder_decode(DECODER * dec, XVID_DEC_FRAME * frame);
+int decoder_decode(DECODER * dec,
+				   XVID_DEC_FRAME * frame);
 
 
-#endif /* _DECODER_H_ */
+#endif