| /* |
| * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| |
| #include "libavutil/attributes.h" |
| #include "libavcodec/avcodec.h" |
| #include "libavcodec/vp3dsp.h" |
| #include "libavcodec/dsputil.h" |
| #include "dsputil_bfin.h" |
| #include "vp3_bfin.h" |
| |
| /* Intra iDCT offset 128 */ |
| static void bfin_vp3_idct_put(uint8_t *dest, int line_size, int16_t *block) |
| { |
| const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP + 128; |
| int i,j; |
| |
| ff_bfin_vp3_idct (block); |
| |
| for (i=0;i<8;i++) |
| for (j=0;j<8;j++) |
| dest[line_size*i + j] = cm[block[j*8 + i]]; |
| |
| memset(block, 0, 128); |
| } |
| |
| /* Inter iDCT */ |
| static void bfin_vp3_idct_add(uint8_t *dest, int line_size, int16_t *block) |
| { |
| const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
| int i, j; |
| |
| ff_bfin_vp3_idct (block); |
| for (i = 0; i < 8; i++) |
| for (j = 0; j < 8; j++) |
| dest[line_size*i + j] = cm[dest[line_size*i + j] + block[j*8 + i]]; |
| |
| memset(block, 0, 128); |
| } |
| |
| av_cold void ff_vp3dsp_init_bfin(VP3DSPContext *c, int flags) |
| { |
| if (!(flags & CODEC_FLAG_BITEXACT)) { |
| c->idct_add = bfin_vp3_idct_add; |
| c->idct_put = bfin_vp3_idct_put; |
| } |
| } |