FFmpeg
qoi.h
Go to the documentation of this file.
1 /*
2  * QOI image format
3  *
4  * This file is part of FFmpeg.
5  *
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.
10  *
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.
15  *
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
19  */
20 
21 #ifndef AVCODEC_QOI_H
22 #define AVCODEC_QOI_H
23 
24 #define QOI_OP_INDEX 0x00 /* 00xxxxxx */
25 #define QOI_OP_DIFF 0x40 /* 01xxxxxx */
26 #define QOI_OP_LUMA 0x80 /* 10xxxxxx */
27 #define QOI_OP_RUN 0xc0 /* 11xxxxxx */
28 #define QOI_OP_RGB 0xfe /* 11111110 */
29 #define QOI_OP_RGBA 0xff /* 11111111 */
30 
31 #define QOI_MASK_2 0xc0 /* 11000000 */
32 
33 #define QOI_COLOR_HASH(px) (px[0]*3 + px[1]*5 + px[2]*7 + px[3]*11)
34 
35 #endif /* AVCODEC_QOI_H */