/* * Copyright (C) 2007 Marc Hoffman * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "libavutil/attributes.h" #include "libavcodec/avcodec.h" #include "libavcodec/mathops.h" #include "libavcodec/vp3dsp.h" void ff_bfin_vp3_idct(int16_t *block); /* Intra iDCT offset 128 */ static void bfin_vp3_idct_put(uint8_t *dest, int line_size, int16_t *block) { const uint8_t *cm = ff_crop_tab + 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_crop_tab + 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; } }