mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
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
/*
|
|
* 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 */
|