1 /*****************************************************************************
2 * vdec_ext-plugins.h : structures from the video decoder exported to plug-ins
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
5 * $Id: vdec_ext-plugins.h,v 1.3 2001/08/22 17:21:45 massiot Exp $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
25 * macroblock_t : information on a macroblock passed to the video_decoder
27 *****************************************************************************/
28 typedef struct idct_inner_s
30 dctelem_t pi_block[64]; /* block */
31 void ( * pf_idct ) ( void *, dctelem_t*, int );
32 /* sparse IDCT or not ? */
33 int i_sparse_pos; /* position of the
35 yuv_data_t * p_dct_data; /* pointer to the position
36 * in the final picture */
39 typedef struct motion_inner_s
41 boolean_t b_average; /* 0 == copy */
42 int i_x_pred, i_y_pred; /* motion vectors */
43 yuv_data_t * pp_source[3];
44 int i_dest_offset, i_src_offset;
45 int i_stride, i_height;
46 boolean_t b_second_half;
49 typedef struct macroblock_s
53 /* IDCT information */
54 idct_inner_t p_idcts[6];
55 int i_coded_block_pattern;
56 /* which blocks are coded ? */
57 int i_lum_dct_stride, i_chrom_dct_stride;
58 /* nb of coeffs to jump when changing lines */
60 /* Motion compensation information */
61 motion_inner_t p_motions[8];
63 yuv_data_t * pp_dest[3];
66 /* Macroblock Modes */
69 #define MB_MOTION_BACKWARD 4
70 #define MB_MOTION_FORWARD 8
72 #define DCT_TYPE_INTERLACED 32
74 /*****************************************************************************
75 * vdec_thread_t: video decoder thread descriptor
76 *****************************************************************************/
77 typedef struct vdec_thread_s
79 vlc_thread_t thread_id; /* id for thread functions */
82 /* IDCT iformations */
85 /* Input properties */
86 struct vdec_pool_s * p_pool;