FFmpeg: libavcodec/bfin/vp3_bfin.c Source File

00001 /*
00002  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
00003  *
00004  * This file is part of FFmpeg.
00005  *
00006  * FFmpeg is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * FFmpeg is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with FFmpeg; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00019  */
00020 
00021 #include "libavcodec/avcodec.h"
00022 #include "libavcodec/dsputil.h"
00023 #include "dsputil_bfin.h"
00024 
00025 /* Intra iDCT offset 128 */
00026 void ff_bfin_vp3_idct_put (uint8_t *dest, int line_size, DCTELEM *block)
00027 {
00028     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP + 128;
00029     int i,j;
00030 
00031     ff_bfin_vp3_idct (block);
00032 
00033     for (i=0;i<8;i++)
00034         for (j=0;j<8;j++)
00035             dest[line_size*i+j]=cm[block[i*8+j]];
00036 }
00037 
00038 /* Inter iDCT */
00039 void ff_bfin_vp3_idct_add (uint8_t *dest, int line_size, DCTELEM *block)
00040 {
00041     ff_bfin_vp3_idct (block);
00042     ff_bfin_add_pixels_clamped (block, dest, line_size);
00043 }