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https://github.com/FFmpeg/FFmpeg.git
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a8592db9bb
This reduces code duplication and differences with the fork. Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "avcodec.h"
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#include "idctdsp.h"
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#include "xvididct.h"
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static void idct_xvid_put(uint8_t *dest, int line_size, int16_t *block)
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{
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ff_idct_xvid(block);
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ff_put_pixels_clamped(block, dest, line_size);
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}
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static void idct_xvid_add(uint8_t *dest, int line_size, int16_t *block)
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{
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ff_idct_xvid(block);
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ff_add_pixels_clamped(block, dest, line_size);
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}
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av_cold void ff_xvididct_init(IDCTDSPContext *c, AVCodecContext *avctx)
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{
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const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
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if (high_bit_depth || avctx->lowres ||
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!(avctx->idct_algo == FF_IDCT_AUTO ||
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avctx->idct_algo == FF_IDCT_XVID))
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return;
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if (avctx->idct_algo == FF_IDCT_XVID) {
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c->idct_put = idct_xvid_put;
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c->idct_add = idct_xvid_add;
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c->idct = ff_idct_xvid;
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c->perm_type = FF_IDCT_PERM_NONE;
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}
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if (ARCH_X86)
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ff_xvididct_init_x86(c);
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ff_init_scantable_permutation(c->idct_permutation, c->perm_type);
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}
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