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1da177e4 LT |
1 | /*************************************************************************** |
2 | * Video decoder for the W996[87]CF driver for Linux. * | |
3 | * * | |
4 | * Copyright (C) 2003 2004 by Luca Risolia <luca.risolia@studio.unibo.it> * | |
5 | * * | |
6 | * This program is free software; you can redistribute it and/or modify * | |
7 | * it under the terms of the GNU General Public License as published by * | |
8 | * the Free Software Foundation; either version 2 of the License, or * | |
9 | * (at your option) any later version. * | |
10 | * * | |
11 | * This program 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 * | |
14 | * GNU General Public License for more details. * | |
15 | * * | |
16 | * You should have received a copy of the GNU General Public License * | |
17 | * along with this program; if not, write to the Free Software * | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * | |
19 | ***************************************************************************/ | |
20 | ||
21 | #ifndef _W9968CF_DECODER_H_ | |
22 | #define _W9968CF_DECODER_H_ | |
23 | ||
24 | /* Comment/uncomment this for high/low quality of compressed video */ | |
25 | #define W9968CF_DEC_FAST_LOWQUALITY_VIDEO | |
26 | ||
27 | #ifdef W9968CF_DEC_FAST_LOWQUALITY_VIDEO | |
28 | static const unsigned char Y_QUANTABLE[64] = { | |
29 | 16, 11, 10, 16, 24, 40, 51, 61, | |
30 | 12, 12, 14, 19, 26, 58, 60, 55, | |
31 | 14, 13, 16, 24, 40, 57, 69, 56, | |
32 | 14, 17, 22, 29, 51, 87, 80, 62, | |
33 | 18, 22, 37, 56, 68, 109, 103, 77, | |
34 | 24, 35, 55, 64, 81, 104, 113, 92, | |
35 | 49, 64, 78, 87, 103, 121, 120, 101, | |
36 | 72, 92, 95, 98, 112, 100, 103, 99 | |
37 | }; | |
38 | ||
39 | static const unsigned char UV_QUANTABLE[64] = { | |
40 | 17, 18, 24, 47, 99, 99, 99, 99, | |
41 | 18, 21, 26, 66, 99, 99, 99, 99, | |
42 | 24, 26, 56, 99, 99, 99, 99, 99, | |
43 | 47, 66, 99, 99, 99, 99, 99, 99, | |
44 | 99, 99, 99, 99, 99, 99, 99, 99, | |
45 | 99, 99, 99, 99, 99, 99, 99, 99, | |
46 | 99, 99, 99, 99, 99, 99, 99, 99, | |
47 | 99, 99, 99, 99, 99, 99, 99, 99 | |
48 | }; | |
49 | #else | |
50 | static const unsigned char Y_QUANTABLE[64] = { | |
51 | 8, 5, 5, 8, 12, 20, 25, 30, | |
52 | 6, 6, 7, 9, 13, 29, 30, 27, | |
53 | 7, 6, 8, 12, 20, 28, 34, 28, | |
54 | 7, 8, 11, 14, 25, 43, 40, 31, | |
55 | 9, 11, 18, 28, 34, 54, 51, 38, | |
56 | 12, 17, 27, 32, 40, 52, 56, 46, | |
57 | 24, 32, 39, 43, 51, 60, 60, 50, | |
58 | 36, 46, 47, 49, 56, 50, 51, 49 | |
59 | }; | |
60 | ||
61 | static const unsigned char UV_QUANTABLE[64] = { | |
62 | 8, 9, 12, 23, 49, 49, 49, 49, | |
63 | 9, 10, 13, 33, 49, 49, 49, 49, | |
64 | 12, 13, 28, 49, 49, 49, 49, 49, | |
65 | 23, 33, 49, 49, 49, 49, 49, 49, | |
66 | 49, 49, 49, 49, 49, 49, 49, 49, | |
67 | 49, 49, 49, 49, 49, 49, 49, 49, | |
68 | 49, 49, 49, 49, 49, 49, 49, 49, | |
69 | 49, 49, 49, 49, 49, 49, 49, 49 | |
70 | }; | |
71 | #endif | |
72 | ||
73 | #define W9968CF_DEC_ERR_CORRUPTED_DATA -1 | |
74 | #define W9968CF_DEC_ERR_BUF_OVERFLOW -2 | |
75 | #define W9968CF_DEC_ERR_NO_SOI -3 | |
76 | #define W9968CF_DEC_ERR_NO_SOF0 -4 | |
77 | #define W9968CF_DEC_ERR_NO_SOS -5 | |
78 | #define W9968CF_DEC_ERR_NO_EOI -6 | |
79 | ||
80 | extern void w9968cf_init_decoder(void); | |
d56410e0 MCC |
81 | extern int w9968cf_check_headers(const unsigned char* Pin, |
82 | const unsigned long BUF_SIZE); | |
83 | extern int w9968cf_decode(const char* Pin, const unsigned long BUF_SIZE, | |
84 | const unsigned W, const unsigned H, char* Pout); | |
1da177e4 LT |
85 | |
86 | #endif /* _W9968CF_DECODER_H_ */ |