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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 "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 */
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