From a9aee08d900f686e966c64afec5d88a7d9d130a3 Mon Sep 17 00:00:00 2001 From: Diego Biurrun Date: Mon, 3 Feb 2014 10:09:45 -0800 Subject: dsputil: Split off FDCT bits into their own context --- libavcodec/fdctdsp.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 libavcodec/fdctdsp.c (limited to 'libavcodec/fdctdsp.c') diff --git a/libavcodec/fdctdsp.c b/libavcodec/fdctdsp.c new file mode 100644 index 0000000000..b245198b90 --- /dev/null +++ b/libavcodec/fdctdsp.c @@ -0,0 +1,50 @@ +/* + * 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 "libavutil/attributes.h" +#include "avcodec.h" +#include "dct.h" +#include "faandct.h" +#include "fdctdsp.h" +#include "config.h" + +av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx) +{ + const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; + + if (avctx->bits_per_raw_sample == 10) { + c->fdct = ff_jpeg_fdct_islow_10; + c->fdct248 = ff_fdct248_islow_10; + } else { + if (avctx->dct_algo == FF_DCT_FASTINT) { + c->fdct = ff_fdct_ifast; + c->fdct248 = ff_fdct_ifast248; + } else if (avctx->dct_algo == FF_DCT_FAAN) { + c->fdct = ff_faandct; + c->fdct248 = ff_faandct248; + } else { + c->fdct = ff_jpeg_fdct_islow_8; // slow/accurate/default + c->fdct248 = ff_fdct248_islow_8; + } + } + + if (ARCH_PPC) + ff_fdctdsp_init_ppc(c, avctx, high_bit_depth); + if (ARCH_X86) + ff_fdctdsp_init_x86(c, avctx, high_bit_depth); +} -- cgit v1.2.3