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FFmpeg/libavcodec/mpegvideodata.h
Andreas Rheinhardt 700a39e63c avcodec/mpegvideodata: Mark tables as hidden
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>
2022-10-31 12:01:33 +01:00

40 lines
1.3 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
*/
#ifndef AVCODEC_MPEGVIDEODATA_H
#define AVCODEC_MPEGVIDEODATA_H
#include <stdint.h>
#include "libavutil/attributes_internal.h"
FF_VISIBILITY_PUSH_HIDDEN
/* encoding scans */
extern const uint8_t ff_alternate_horizontal_scan[64];
extern const uint8_t ff_alternate_vertical_scan[64];
extern const uint8_t ff_mpeg12_dc_scale_table[4][32];
static const uint8_t *const ff_mpeg1_dc_scale_table = ff_mpeg12_dc_scale_table[0];
extern const uint8_t ff_mpeg2_non_linear_qscale[32];
extern const uint8_t ff_default_chroma_qscale_table[32];
FF_VISIBILITY_POP_HIDDEN
#endif /* AVCODEC_MPEGVIDEODATA_H */