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1 : edgomez 203 /*****************************************************************************
2 :     *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Decoder header -
5 :     *
6 :     * This program is an implementation of a part of one or more MPEG-4
7 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
8 :     * to use this software module in hardware or software products are
9 :     * advised that its use may infringe existing patents or copyrights, and
10 :     * any such use would be at such party's own risk. The original
11 :     * developer of this software module and his/her company, and subsequent
12 :     * editors and their companies, will have no liability for use of this
13 :     * software or modifications or derivatives thereof.
14 :     *
15 :     * This program is free software ; you can redistribute it and/or modify
16 :     * it under the terms of the GNU General Public License as published by
17 :     * the Free Software Foundation ; either version 2 of the License, or
18 :     * (at your option) any later version.
19 :     *
20 :     * This program is distributed in the hope that it will be useful,
21 :     * but WITHOUT ANY WARRANTY ; without even the implied warranty of
22 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 :     * GNU General Public License for more details.
24 :     *
25 :     * You should have received a copy of the GNU General Public License
26 :     * along with this program ; if not, write to the Free Software
27 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 :     *
29 :     ****************************************************************************/
30 :     /*****************************************************************************
31 :     *
32 :     * History
33 :     *
34 :     * - 13.06.2002 Added legal header - Cosmetic
35 :     *
36 :     * $Id: decoder.h,v 1.7 2002-06-13 21:53:08 edgomez Exp $
37 :     *
38 :     ****************************************************************************/
39 :    
40 : Isibaar 3 #ifndef _DECODER_H_
41 :     #define _DECODER_H_
42 :    
43 :     #include "xvid.h"
44 :     #include "portab.h"
45 :     #include "global.h"
46 :     #include "image/image.h"
47 :    
48 : edgomez 203 /*****************************************************************************
49 :     * Structures
50 :     ****************************************************************************/
51 : Isibaar 3
52 :     typedef struct
53 :     {
54 :     // bitstream
55 :    
56 :     uint32_t shape;
57 :     uint32_t time_inc_bits;
58 :     uint32_t quant_bits;
59 :     uint32_t quant_type;
60 :     uint32_t quarterpel;
61 :    
62 : h 69 uint32_t interlacing;
63 :     uint32_t top_field_first;
64 :     uint32_t alternate_vertical_scan;
65 :    
66 : Isibaar 3 // image
67 :    
68 :     uint32_t width;
69 :     uint32_t height;
70 :     uint32_t edged_width;
71 :     uint32_t edged_height;
72 : edgomez 195
73 : Isibaar 3 IMAGE cur;
74 : edgomez 195 IMAGE refn[3]; // 0 -- last I or P VOP
75 :     // 1 -- first I or P
76 :     // 2 -- for interpolate mode B-frame
77 : Isibaar 3 IMAGE refh;
78 :     IMAGE refv;
79 :     IMAGE refhv;
80 :    
81 :     // macroblock
82 :    
83 :     uint32_t mb_width;
84 :     uint32_t mb_height;
85 : edgomez 195 MACROBLOCK *mbs;
86 : Isibaar 3
87 : chenm001 156 // for B-frame
88 : edgomez 195 int32_t frames; // total frame number
89 :     int8_t scalability;
90 :     VECTOR p_fmv, p_bmv; // pred forward & backward motion vector
91 :     MACROBLOCK *last_mbs; // last MB
92 :     int64_t time; // for record time
93 :     int64_t time_base;
94 :     int64_t last_time_base;
95 :     int64_t last_non_b_time;
96 :     uint32_t time_pp;
97 :     uint32_t time_bp;
98 :     uint8_t low_delay; // low_delay flage (1 means no B_VOP)
99 :     }
100 :     DECODER;
101 : Isibaar 3
102 : edgomez 203 /*****************************************************************************
103 :     * Decoder prototypes
104 :     ****************************************************************************/
105 :    
106 : Isibaar 3 void init_decoder(uint32_t cpu_flags);
107 :    
108 :     int decoder_create(XVID_DEC_PARAM * param);
109 :     int decoder_destroy(DECODER * dec);
110 : edgomez 195 int decoder_decode(DECODER * dec,
111 :     XVID_DEC_FRAME * frame);
112 : Isibaar 3
113 :    
114 : edgomez 203 #endif

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