2 * Copyright (c) 2015 Kieran Kunhya
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVCODEC_CFHD_H
22 #define AVCODEC_CFHD_H
27 #include "bytestream.h"
56 LowpassQuantization=34,
57 LowpassPrecision = 35,
96 #define SUBBAND_COUNT 10
97 #define SUBBAND_COUNT_3D 17
99 typedef struct CFHD_RL_VLC_ELEM {
106 #define DWT_LEVELS_3D 6
108 typedef struct SubBand {
117 typedef struct Plane {
126 /* TODO: merge this into SubBand structure */
127 int16_t *subband[SUBBAND_COUNT_3D];
130 SubBand band[DWT_LEVELS_3D][4];
133 typedef struct Peak {
139 typedef struct CFHDContext {
140 AVCodecContext *avctx;
142 CFHD_RL_VLC_ELEM table_9_rl_vlc[2088];
143 CFHD_RL_VLC_ELEM table_18_rl_vlc[4572];
157 enum AVPixelFormat coded_format;
163 int a_transform_type;
165 int bpc; // bits per channel/component
170 uint8_t lowpass_precision;
171 uint16_t quantisation;
174 int difference_coding;
177 int subband_num_actual;
179 uint8_t prescale_table[8];
186 int ff_cfhd_init_vlcs(CFHDContext *s);
188 #endif /* AVCODEC_CFHD_H */