/* * 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" #define VLC_BITS 9 #define NB_VLC_TABLE_9 (71+3) #define NB_VLC_TABLE_18 (263+1) 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; int 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[10]; int16_t *l_h[8]; SubBand band[DWT_LEVELS][4]; } Plane; 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 chroma_x_shift; int chroma_y_shift; int coded_width; int coded_height; int a_width; int a_height; int bpc; int channel_cnt; int subband_cnt; int channel_num; uint8_t lowpass_precision; uint16_t quantisation; int wavelet_depth; int pshift; int codebook; int subband_num; int level; int subband_num_actual; uint8_t prescale_shift[3]; Plane plane[4]; } CFHDContext; int ff_cfhd_init_vlcs(CFHDContext *s); #endif /* AVCODEC_CFHD_H */