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
26 #include "libavutil/avassert.h"
29 #include "bytestream.h"
52 LowpassQuantization=34,
53 LowpassPrecision = 35,
80 BitsPerComponent = 101,
87 #define SUBBAND_COUNT 10
89 typedef struct CFHD_RL_VLC_ELEM {
97 typedef struct SubBand {
110 typedef struct Plane {
118 /* TODO: merge this into SubBand structure */
119 int16_t *subband[SUBBAND_COUNT];
122 SubBand band[DWT_LEVELS][4];
125 typedef struct Peak {
131 typedef struct CFHDContext {
132 AVCodecContext *avctx;
134 CFHD_RL_VLC_ELEM table_9_rl_vlc[2088];
137 CFHD_RL_VLC_ELEM table_18_rl_vlc[4572];
147 enum AVPixelFormat coded_format;
154 int bpc; // bits per channel/component
158 uint8_t lowpass_precision;
159 uint16_t quantisation;
164 int difference_coding;
167 int subband_num_actual;
169 uint8_t prescale_shift[3];
174 int ff_cfhd_init_vlcs(CFHDContext *s);
176 #endif /* AVCODEC_CFHD_H */