2a60328e3cd4893dac21c8321e8fa1dc028a6e0a
[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 typedef struct{
23 VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
24 VLC * j_orient_vlc;
25 VLC * j_dc_vlc[3];
26
27 int use_quant_matrix;
28 //set by ff_intrax8_common_init
29 uint8_t * prediction_table;//2*(mb_w*2)
30 ScanTable scantable[3];
31 //set by the caller codec
32 MpegEncContext * s;
33 int quant;
34 int dquant;
35 int qsum;
36 //calculated per frame
37 int quant_dc_chroma;
38 int divide_quant_dc_luma;
39 int divide_quant_dc_chroma;
40 //changed per block
41 int edges;
42 int flat_dc;
43 int predicted_dc;
44 int raw_orient;
45 int chroma_orient;
46 int orient;
47 int est_run;
48 } IntraX8Context;
49
50 void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s);
51 int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
52
53 #endif /* FFMPEG_INTRAX8_H */