| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 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. |
| 8 | * |
| 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. |
| 13 | * |
| 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 |
| 17 | */ |
| 18 | |
| 19 | #include "libavutil/attributes.h" |
| 20 | #include "avcodec.h" |
| 21 | #include "dct.h" |
| 22 | #include "faandct.h" |
| 23 | #include "fdctdsp.h" |
| 24 | #include "config.h" |
| 25 | |
| 26 | av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx) |
| 27 | { |
| 28 | const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; |
| 29 | |
| 30 | if (avctx->bits_per_raw_sample == 10) { |
| 31 | c->fdct = ff_jpeg_fdct_islow_10; |
| 32 | c->fdct248 = ff_fdct248_islow_10; |
| 33 | } else if (avctx->dct_algo == FF_DCT_FASTINT) { |
| 34 | c->fdct = ff_fdct_ifast; |
| 35 | c->fdct248 = ff_fdct_ifast248; |
| 36 | #if CONFIG_FAANDCT |
| 37 | } else if (avctx->dct_algo == FF_DCT_FAAN) { |
| 38 | c->fdct = ff_faandct; |
| 39 | c->fdct248 = ff_faandct248; |
| 40 | #endif /* CONFIG_FAANDCT */ |
| 41 | } else { |
| 42 | c->fdct = ff_jpeg_fdct_islow_8; // slow/accurate/default |
| 43 | c->fdct248 = ff_fdct248_islow_8; |
| 44 | } |
| 45 | |
| 46 | if (ARCH_PPC) |
| 47 | ff_fdctdsp_init_ppc(c, avctx, high_bit_depth); |
| 48 | if (ARCH_X86) |
| 49 | ff_fdctdsp_init_x86(c, avctx, high_bit_depth); |
| 50 | } |