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- /*
- * 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"
- #include "thread.h"
- #define VLC_BITS 9
- #define SUBBAND_COUNT 17
- typedef struct CFHD_RL_VLC_ELEM {
- int16_t level;
- int8_t len;
- uint16_t run;
- } CFHD_RL_VLC_ELEM;
- #define DWT_LEVELS 6
- 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[10];
- SubBand band[DWT_LEVELS][4];
- } Plane;
- typedef struct Peak {
- int level;
- int offset;
- const int16_t *base;
- } Peak;
- typedef struct CFHDContext {
- AVCodecContext *avctx;
- ThreadFrame i_frame;
- ThreadFrame p_frame;
- ThreadFrame *connection;
- ThreadFrame *picture;
- 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 sample_type;
- int transform_type;
- int num_spatial;
- int num_frames;
- int encode_method;
- int first_wavelet;
- int pframe;
- 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];
- Plane *buffers;
- Peak peak;
- } CFHDContext;
- int ff_cfhd_init_vlcs(CFHDContext *s);
- #endif /* AVCODEC_CFHD_H */
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