700a39e63c
This e.g. allows compilers to bake the offset implied by using ff_mpeg12_dc_scale_table[3] (as the SpeedHQ encoder does) into the general offset; for certain arches this is also necessary in order to avoid building suboptimal code. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
40 lines
1.3 KiB
C
40 lines
1.3 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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#ifndef AVCODEC_MPEGVIDEODATA_H
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#define AVCODEC_MPEGVIDEODATA_H
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#include <stdint.h>
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#include "libavutil/attributes_internal.h"
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FF_VISIBILITY_PUSH_HIDDEN
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/* encoding scans */
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extern const uint8_t ff_alternate_horizontal_scan[64];
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extern const uint8_t ff_alternate_vertical_scan[64];
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extern const uint8_t ff_mpeg12_dc_scale_table[4][32];
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static const uint8_t *const ff_mpeg1_dc_scale_table = ff_mpeg12_dc_scale_table[0];
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extern const uint8_t ff_mpeg2_non_linear_qscale[32];
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extern const uint8_t ff_default_chroma_qscale_table[32];
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FF_VISIBILITY_POP_HIDDEN
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#endif /* AVCODEC_MPEGVIDEODATA_H */
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