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intrax8.h
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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 #include "intrax8dsp.h"
25 
26 typedef struct IntraX8Context {
27  VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
29  VLC * j_dc_vlc[3];
30 
32 //set by ff_intrax8_common_init
33  uint8_t * prediction_table;//2*(mb_w*2)
35 //set by the caller codec
38  int quant;
39  int dquant;
40  int qsum;
41 //calculated per frame
45 //changed per block
46  int edges;
47  int flat_dc;
51  int orient;
52  int est_run;
54 
57 int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
58 
59 #endif /* AVCODEC_INTRAX8_H */