1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef AVCODEC_INTRAX8_H
20#define AVCODEC_INTRAX8_H
21
22#include "get_bits.h"
23#include "mpegvideo.h"
24
25typedef struct{
26    VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
27    VLC * j_orient_vlc;
28    VLC * j_dc_vlc[3];
29
30    int use_quant_matrix;
31//set by ff_intrax8_common_init
32    uint8_t * prediction_table;//2*(mb_w*2)
33    ScanTable scantable[3];
34//set by the caller codec
35    MpegEncContext * s;
36    int quant;
37    int dquant;
38    int qsum;
39//calculated per frame
40    int quant_dc_chroma;
41    int divide_quant_dc_luma;
42    int divide_quant_dc_chroma;
43//changed per block
44    int edges;
45    int flat_dc;
46    int predicted_dc;
47    int raw_orient;
48    int chroma_orient;
49    int orient;
50    int est_run;
51} IntraX8Context;
52
53void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s);
54void ff_intrax8_common_end(IntraX8Context * w);
55int  ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
56
57#endif /* AVCODEC_INTRAX8_H */
58