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57 lines
1.8 KiB
57 lines
1.8 KiB
/* |
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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_xvid_idct_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_xvid_idct_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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