3f6de67da5d01b6e7489f608f9ba2d0cde204024
[libav.git] / libavcodec / intrax8.h
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 FFMPEG_INTRAX8_H
20 #define FFMPEG_INTRAX8_H
21
22 #include "bitstream.h"
23 #include "mpegvideo.h"
24
25 typedef 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
53 void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s);
54 void ff_intrax8_common_end(IntraX8Context * w);
55 int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
56
57 #endif /* FFMPEG_INTRAX8_H */