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66 lines
1.9 KiB
66 lines
1.9 KiB
/* |
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* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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 GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <stdint.h> |
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#include <string.h> |
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#include "libavutil/attributes.h" |
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#include "libavcodec/avcodec.h" |
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#include "libavcodec/mathops.h" |
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#include "libavcodec/vp3dsp.h" |
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void ff_bfin_vp3_idct(int16_t *block); |
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/* Intra iDCT offset 128 */ |
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static void bfin_vp3_idct_put(uint8_t *dest, int line_size, int16_t *block) |
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{ |
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const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP + 128; |
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int i,j; |
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ff_bfin_vp3_idct (block); |
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for (i=0;i<8;i++) |
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for (j=0;j<8;j++) |
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dest[line_size*i + j] = cm[block[j*8 + i]]; |
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memset(block, 0, 128); |
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} |
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/* Inter iDCT */ |
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static void bfin_vp3_idct_add(uint8_t *dest, int line_size, int16_t *block) |
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{ |
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const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; |
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int i, j; |
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ff_bfin_vp3_idct (block); |
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for (i = 0; i < 8; i++) |
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for (j = 0; j < 8; j++) |
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dest[line_size*i + j] = cm[dest[line_size*i + j] + block[j*8 + i]]; |
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memset(block, 0, 128); |
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} |
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av_cold void ff_vp3dsp_init_bfin(VP3DSPContext *c, int flags) |
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{ |
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if (!(flags & CODEC_FLAG_BITEXACT)) { |
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c->idct_add = bfin_vp3_idct_add; |
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c->idct_put = bfin_vp3_idct_put; |
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} |
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}
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