2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include "libavutil/attributes.h"
25 av_cold void ff_xvididct_init(IDCTDSPContext *c, AVCodecContext *avctx)
27 const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
29 if (high_bit_depth || avctx->lowres ||
30 !(avctx->idct_algo == FF_IDCT_AUTO ||
31 avctx->idct_algo == FF_IDCT_XVID))
35 ff_xvididct_init_x86(c);
37 ff_init_scantable_permutation(c->idct_permutation, c->perm_type);