/* * 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 "bytestream.h" #include "get_bits.h" #include "vlc.h" #include "cfhddsp.h" enum CFHDParam { SampleType = 1, SampleIndexTable = 2, BitstreamMarker = 4, VersionMajor = 5, VersionMinor = 6, VersionRevision = 7, VersionEdit = 8, TransformType = 10, NumFrames = 11, ChannelCount = 12, WaveletCount = 13, SubbandCount = 14, NumSpatial = 15, FirstWavelet = 16, GroupTrailer = 18, FrameType = 19, ImageWidth = 20, ImageHeight = 21, FrameIndex = 23, LowpassSubband = 25, NumLevels = 26, LowpassWidth = 27, LowpassHeight = 28, PixelOffset = 33, LowpassQuantization=34, LowpassPrecision = 35, WaveletType = 37, WaveletNumber = 38, WaveletLevel = 39, NumBands = 40, HighpassWidth = 41, HighpassHeight = 42, LowpassBorder = 43, HighpassBorder = 44, LowpassScale = 45, LowpassDivisor = 46, SubbandNumber = 48, BandWidth = 49, BandHeight = 50, SubbandBand = 51, BandEncoding = 52, Quantization = 53, BandScale = 54, BandHeader = 55, BandTrailer = 56, ChannelNumber = 62, SampleFlags = 68, FrameNumber = 69, Precision = 70, InputFormat = 71, BandCodingFlags = 72, PeakLevel = 74, PeakOffsetLow = 75, PeakOffsetHigh = 76, Version = 79, BandSecondPass = 82, PrescaleTable = 83, EncodedFormat = 84, DisplayHeight = 85, ChannelWidth = 104, ChannelHeight = 105, }; #define VLC_BITS 9 #define SUBBAND_COUNT 10 #define SUBBAND_COUNT_3D 17 typedef struct CFHD_RL_VLC_ELEM { int16_t level; int8_t len; uint16_t run; } CFHD_RL_VLC_ELEM; #define DWT_LEVELS 3 #define DWT_LEVELS_3D 6 typedef struct SubBand { ptrdiff_t stride; int a_width; int width; int a_height; int height; int8_t read_ok; } SubBand; typedef struct Plane { int width; int height; ptrdiff_t stride; int16_t *idwt_buf; int16_t *idwt_tmp; int idwt_size; /* TODO: merge this into SubBand structure */ int16_t *subband[SUBBAND_COUNT_3D]; int16_t *l_h[10]; SubBand band[DWT_LEVELS_3D][4]; } Plane; typedef struct Peak { int level; int offset; GetByteContext 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; int lut[2][256]; GetBitContext gb; int planes; int frame_type; int frame_index; int sample_type; int transform_type; 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 a_transform_type; int bpc; // bits per channel/component int channel_cnt; int subband_cnt; int band_encoding; int channel_num; uint8_t lowpass_precision; uint16_t quantisation; int codebook; int difference_coding; int subband_num; int level; int subband_num_actual; uint8_t prescale_table[8]; Plane plane[4]; Peak peak; CFHDDSPContext dsp; } CFHDContext; int ff_cfhd_init_vlcs(CFHDContext *s); #endif /* AVCODEC_CFHD_H */