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FFmpeg/libavcodec/fdctdsp.c
Andreas Rheinhardt 8387241975 avcodec/dct: Move fdct function declarations to fdctdsp.h
It is the more proper place for them given that this is
the only API using them.
Also use a forward-declaration of AVCodecContext in fdctdsp.h
to avoid including avcodec.h in jfdct(fst|int).c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-07-29 04:16:59 +02:00

51 lines
1.7 KiB
C

/*
* This file is part of FFmpeg.
*
* 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.
*
* 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 FFmpeg; 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 "faandct.h"
#include "fdctdsp.h"
#include "config.h"
av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx)
{
av_unused const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) {
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;
#if CONFIG_FAANDCT
} else if (avctx->dct_algo == FF_DCT_FAAN) {
c->fdct = ff_faandct;
c->fdct248 = ff_faandct248;
#endif /* CONFIG_FAANDCT */
} 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);
#elif ARCH_X86
ff_fdctdsp_init_x86(c, avctx, high_bit_depth);
#endif
}