mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 19:30:05 +00:00
09d89d9406
Prevents having to have random magic values in the decoder and a separate macro in the encoder. Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2016 Open Broadcast Systems Ltd.
|
|
* Author (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
|
|
*
|
|
* 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_DIRACTAB_H
|
|
#define AVCODEC_DIRACTAB_H
|
|
|
|
#include <stdint.h>
|
|
|
|
/* Tables here are shared between the Dirac/VC-2 decoder and the VC-2 encoder */
|
|
|
|
/* Default quantization tables for each wavelet transform */
|
|
extern const uint8_t ff_dirac_default_qmat[7][4][4];
|
|
|
|
/* Scaling factors needed for quantization/dequantization */
|
|
extern const int32_t ff_dirac_qscale_tab[116];
|
|
|
|
/* Scaling offsets needed for quantization/dequantization, for intra frames */
|
|
extern const int32_t ff_dirac_qoffset_intra_tab[120];
|
|
|
|
/* Scaling offsets needed for quantization/dequantization, for inter frames */
|
|
extern const int ff_dirac_qoffset_inter_tab[122];
|
|
|
|
#define DIRAC_MAX_QUANT_INDEX (FF_ARRAY_ELEMS(ff_dirac_qscale_tab))
|
|
|
|
#endif /* AVCODEC_DIRACTAB_H */
|