2 * Copyright (c) 2002 The FFmpeg Project
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVCODEC_WMV2_H
22 #define AVCODEC_WMV2_H
24 #include "libavutil/mem_internal.h"
28 #include "mpegvideo.h"
31 #define SKIP_TYPE_NONE 0
32 #define SKIP_TYPE_MPEG 1
33 #define SKIP_TYPE_ROW 2
34 #define SKIP_TYPE_COL 3
37 typedef struct Wmv2Context {
45 int abt_type_table[6];
55 ScanTable abt_scantable[2];
56 DECLARE_ALIGNED(32, int16_t, abt_block2)[6][64];
59 void ff_wmv2_common_init(Wmv2Context *w);
61 int ff_wmv2_decode_mb(MpegEncContext *s, int16_t block[6][64]);
62 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
63 void ff_wmv2_encode_mb(MpegEncContext * s, int16_t block[6][64],
64 int motion_x, int motion_y);
65 int ff_wmv2_decode_picture_header(MpegEncContext * s);
66 int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
67 void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64],
68 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
70 void ff_mspel_motion(MpegEncContext *s,
71 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
72 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
73 int motion_x, int motion_y, int h);
76 static av_always_inline int wmv2_get_cbp_table_index(MpegEncContext *s, int cbp_index)
78 static const uint8_t map[3][3] = {
84 return map[(s->qscale > 10) + (s->qscale > 20)][cbp_index];
87 #endif /* AVCODEC_WMV2_H */