mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
120 lines
2.5 KiB
120 lines
2.5 KiB
/* |
|
* Copyright (c) 2015 Kieran Kunhya |
|
* |
|
* 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_CFHD_H |
|
#define AVCODEC_CFHD_H |
|
|
|
#include <stdint.h> |
|
|
|
#include "libavutil/avassert.h" |
|
|
|
#include "avcodec.h" |
|
#include "get_bits.h" |
|
#include "vlc.h" |
|
|
|
#define VLC_BITS 9 |
|
#define SUBBAND_COUNT 10 |
|
|
|
typedef struct CFHD_RL_VLC_ELEM { |
|
int16_t level; |
|
int8_t len; |
|
uint16_t run; |
|
} CFHD_RL_VLC_ELEM; |
|
|
|
#define DWT_LEVELS 3 |
|
|
|
typedef struct SubBand { |
|
int level; |
|
int orientation; |
|
ptrdiff_t stride; |
|
int a_width; |
|
int width; |
|
int a_height; |
|
int height; |
|
int pshift; |
|
int quant; |
|
uint8_t *ibuf; |
|
} SubBand; |
|
|
|
typedef struct Plane { |
|
int width; |
|
int height; |
|
ptrdiff_t stride; |
|
|
|
int16_t *idwt_buf; |
|
int16_t *idwt_tmp; |
|
|
|
/* TODO: merge this into SubBand structure */ |
|
int16_t *subband[SUBBAND_COUNT]; |
|
int16_t *l_h[8]; |
|
|
|
SubBand band[DWT_LEVELS][4]; |
|
} Plane; |
|
|
|
typedef struct Peak { |
|
int level; |
|
int offset; |
|
const int16_t *base; |
|
} Peak; |
|
|
|
typedef struct CFHDContext { |
|
AVCodecContext *avctx; |
|
|
|
CFHD_RL_VLC_ELEM table_9_rl_vlc[2088]; |
|
VLC vlc_9; |
|
|
|
CFHD_RL_VLC_ELEM table_18_rl_vlc[4572]; |
|
VLC vlc_18; |
|
|
|
GetBitContext gb; |
|
|
|
int coded_width; |
|
int coded_height; |
|
int cropped_height; |
|
enum AVPixelFormat coded_format; |
|
int progressive; |
|
|
|
int a_width; |
|
int a_height; |
|
int a_format; |
|
|
|
int bpc; // bits per channel/component |
|
int channel_cnt; |
|
int subband_cnt; |
|
int channel_num; |
|
uint8_t lowpass_precision; |
|
uint16_t quantisation; |
|
int wavelet_depth; |
|
int pshift; |
|
|
|
int codebook; |
|
int difference_coding; |
|
int subband_num; |
|
int level; |
|
int subband_num_actual; |
|
|
|
uint8_t prescale_shift[3]; |
|
Plane plane[4]; |
|
Peak peak; |
|
} CFHDContext; |
|
|
|
int ff_cfhd_init_vlcs(CFHDContext *s); |
|
|
|
#endif /* AVCODEC_CFHD_H */
|
|
|