* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
static void vp8_idct_add_c(uint8_t *dst, DCTELEM block[16], ptrdiff_t stride)
{
int i, t0, t1, t2, t3;
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
DCTELEM tmp[16];
for (i = 0; i < 4; i++) {
t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);
t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);
- dst[0] = cm[dst[0] + ((t0 + t3 + 4) >> 3)];
- dst[1] = cm[dst[1] + ((t1 + t2 + 4) >> 3)];
- dst[2] = cm[dst[2] + ((t1 - t2 + 4) >> 3)];
- dst[3] = cm[dst[3] + ((t0 - t3 + 4) >> 3)];
+ dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
+ dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
+ dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
+ dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
dst += stride;
}
}
static void vp8_idct_dc_add_c(uint8_t *dst, DCTELEM block[16], ptrdiff_t stride)
{
int i, dc = (block[0] + 4) >> 3;
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP + dc;
block[0] = 0;
for (i = 0; i < 4; i++) {
- dst[0] = cm[dst[0]];
- dst[1] = cm[dst[1]];
- dst[2] = cm[dst[2]];
- dst[3] = cm[dst[3]];
+ dst[0] = av_clip_uint8(dst[0] + dc);
+ dst[1] = av_clip_uint8(dst[1] + dc);
+ dst[2] = av_clip_uint8(dst[2] + dc);
+ dst[3] = av_clip_uint8(dst[3] + dc);
dst += stride;
}
}