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vp3_bfin.c
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1 /*
2  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
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 #include "libavcodec/avcodec.h"
22 #include "libavcodec/dsputil.h"
23 #include "dsputil_bfin.h"
24 
25 /* Intra iDCT offset 128 */
26 void ff_bfin_vp3_idct_put (uint8_t *dest, int line_size, DCTELEM *block)
27 {
28  uint8_t *cm = ff_cropTbl + MAX_NEG_CROP + 128;
29  int i,j;
30 
31  ff_bfin_vp3_idct (block);
32 
33  for (i=0;i<8;i++)
34  for (j=0;j<8;j++)
35  dest[line_size*i+j]=cm[block[i*8+j]];
36 }
37 
38 /* Inter iDCT */
39 void ff_bfin_vp3_idct_add (uint8_t *dest, int line_size, DCTELEM *block)
40 {
41  ff_bfin_vp3_idct (block);
42  ff_bfin_add_pixels_clamped (block, dest, line_size);
43 }