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86 lines
3.6 KiB
C
86 lines
3.6 KiB
C
/***************************************************************************
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* Video decoder for the W996[87]CF driver for Linux. *
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* *
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* Copyright (C) 2003 2004 by Luca Risolia <luca.risolia@studio.unibo.it> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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***************************************************************************/
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#ifndef _W9968CF_DECODER_H_
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#define _W9968CF_DECODER_H_
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/* Comment/uncomment this for high/low quality of compressed video */
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#define W9968CF_DEC_FAST_LOWQUALITY_VIDEO
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#ifdef W9968CF_DEC_FAST_LOWQUALITY_VIDEO
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static const unsigned char Y_QUANTABLE[64] = {
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16, 11, 10, 16, 24, 40, 51, 61,
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12, 12, 14, 19, 26, 58, 60, 55,
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14, 13, 16, 24, 40, 57, 69, 56,
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14, 17, 22, 29, 51, 87, 80, 62,
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18, 22, 37, 56, 68, 109, 103, 77,
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24, 35, 55, 64, 81, 104, 113, 92,
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49, 64, 78, 87, 103, 121, 120, 101,
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72, 92, 95, 98, 112, 100, 103, 99
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};
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static const unsigned char UV_QUANTABLE[64] = {
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17, 18, 24, 47, 99, 99, 99, 99,
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18, 21, 26, 66, 99, 99, 99, 99,
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24, 26, 56, 99, 99, 99, 99, 99,
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47, 66, 99, 99, 99, 99, 99, 99,
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99, 99, 99, 99, 99, 99, 99, 99,
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99, 99, 99, 99, 99, 99, 99, 99,
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99, 99, 99, 99, 99, 99, 99, 99,
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99, 99, 99, 99, 99, 99, 99, 99
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};
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#else
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static const unsigned char Y_QUANTABLE[64] = {
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8, 5, 5, 8, 12, 20, 25, 30,
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6, 6, 7, 9, 13, 29, 30, 27,
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7, 6, 8, 12, 20, 28, 34, 28,
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7, 8, 11, 14, 25, 43, 40, 31,
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9, 11, 18, 28, 34, 54, 51, 38,
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12, 17, 27, 32, 40, 52, 56, 46,
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24, 32, 39, 43, 51, 60, 60, 50,
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36, 46, 47, 49, 56, 50, 51, 49
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};
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static const unsigned char UV_QUANTABLE[64] = {
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8, 9, 12, 23, 49, 49, 49, 49,
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9, 10, 13, 33, 49, 49, 49, 49,
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12, 13, 28, 49, 49, 49, 49, 49,
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23, 33, 49, 49, 49, 49, 49, 49,
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49, 49, 49, 49, 49, 49, 49, 49,
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49, 49, 49, 49, 49, 49, 49, 49,
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49, 49, 49, 49, 49, 49, 49, 49,
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49, 49, 49, 49, 49, 49, 49, 49
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};
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#endif
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#define W9968CF_DEC_ERR_CORRUPTED_DATA -1
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#define W9968CF_DEC_ERR_BUF_OVERFLOW -2
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#define W9968CF_DEC_ERR_NO_SOI -3
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#define W9968CF_DEC_ERR_NO_SOF0 -4
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#define W9968CF_DEC_ERR_NO_SOS -5
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#define W9968CF_DEC_ERR_NO_EOI -6
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extern void w9968cf_init_decoder(void);
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extern int w9968cf_check_headers(const unsigned char* Pin,
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const unsigned long BUF_SIZE);
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extern int w9968cf_decode(const char* Pin, const unsigned long BUF_SIZE,
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const unsigned W, const unsigned H, char* Pout);
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#endif /* _W9968CF_DECODER_H_ */
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