7764dd8dd94ccba647d76f44ecc73764aec94b70
[libav.git] / libavcodec / svq1.h
1 /*
2 * SVQ1 decoder
3 * ported to MPlayer by Arpi <arpi@thot.banki.hu>
4 * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru>
5 *
6 * Copyright (C) 2002 the xine project
7 * Copyright (C) 2002 the ffmpeg project
8 *
9 * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net>
10 *
11 * This file is part of FFmpeg.
12 *
13 * FFmpeg is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * FFmpeg is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with FFmpeg; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 */
27
28 /**
29 * @file svq1.h
30 * Sorenson Vector Quantizer #1 (SVQ1) video codec.
31 * For more information of the SVQ1 algorithm, visit:
32 * http://www.pcisys.net/~melanson/codecs/
33 */
34
35 #ifndef FFMPEG_SVQ1_H
36 #define FFMPEG_SVQ1_H
37
38 #include <stdint.h>
39
40 #define SVQ1_BLOCK_SKIP 0
41 #define SVQ1_BLOCK_INTER 1
42 #define SVQ1_BLOCK_INTER_4V 2
43 #define SVQ1_BLOCK_INTRA 3
44
45 typedef struct {
46 int width;
47 int height;
48 } svq1_frame_size_t;
49
50 extern const int8_t* const ff_svq1_inter_codebooks[6];
51 extern const int8_t* const ff_svq1_intra_codebooks[6];
52
53 extern const uint8_t ff_svq1_block_type_vlc[4][2];
54 extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2];
55 extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2];
56 extern const uint16_t ff_svq1_intra_mean_vlc[256][2];
57 extern const uint16_t ff_svq1_inter_mean_vlc[512][2];
58
59 extern const svq1_frame_size_t ff_svq1_frame_size_table[8];
60
61 #endif /* FFMPEG_SVQ1_H */