/*

 * HEIF codec.

 * Copyright (c) 2017 Dirk Farin <dirk.farin@gmail.com>

 *

 * This file is part of libheif.

 *

 * libheif 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 3 of

 * the License, or (at your option) any later version.

 *

 * libheif 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 libheif.  If not, see <http://www.gnu.org/licenses/>.

 */

#ifndef HEIF_AVIF_BOXES_H

#define HEIF_AVIF_BOXES_H

#include <cassert>

#include <cmath>

#include <memory>

#include <string>

#include <vector>

#include "libheif/heif.h"

#include "box.h"

#include "error.h"

#include "image-items/image_item.h"

#include "sequences/seq_boxes.h"

class Box_av1C : public Box

{

// allow access to protected parse() method

friend class Box_mini;

public:

  Box_av1C()

  {

    set_short_type(fourcc("av1C"));

  }

  bool is_essential() const override { return true; }

  struct configuration

  {

    //unsigned int (1) marker = 1;

    uint8_t version = 1;

    uint8_t seq_profile = 0;

    uint8_t seq_level_idx_0 = 0;

    uint8_t seq_tier_0 = 0;

    uint8_t high_bitdepth = 0;

    uint8_t twelve_bit = 0;

    uint8_t monochrome = 0;

    uint8_t chroma_subsampling_x = 0; // (minus 1) that is: either 0 or 1

    uint8_t chroma_subsampling_y = 0; // (minus 1)

    uint8_t chroma_sample_position = 0;

    //uint8_t reserved = 0;

    uint8_t initial_presentation_delay_present = 0;

    uint8_t initial_presentation_delay_minus_one = 0;

    //unsigned int (8)[] configOBUs;

    heif_chroma get_heif_chroma() const {

      if (monochrome) {

        return heif_chroma_monochrome;

      }

      else if (chroma_subsampling_x==1 && chroma_subsampling_y==1) {

        return heif_chroma_420;

      }

      else if (chroma_subsampling_x==1 && chroma_subsampling_y==0) {

        return heif_chroma_422;

      }

      else if (chroma_subsampling_x==0 && chroma_subsampling_y==0) {

        return heif_chroma_444;

      }

      else {

        return heif_chroma_undefined;

      }

    }

  };

  std::string dump(Indent&) const override;

  bool get_headers(std::vector<uint8_t>* dest) const

  {

    *dest = m_config_OBUs;

    return true;

  }

  void set_configuration(const configuration& config) { m_configuration = config; }

  const configuration& get_configuration() const { return m_configuration; }

  //void append_nal_data(const std::vector<uint8_t>& nal);

  //void append_nal_data(const uint8_t* data, size_t size);

  Error write(StreamWriter& writer) const override;

protected:

  Error parse(BitstreamRange& range, const heif_security_limits* limits) override;

private:

  configuration m_configuration;

  std::vector<uint8_t> m_config_OBUs;

};

class Box_av01 : public Box_VisualSampleEntry

{

public:

  Box_av01()

  {

    set_short_type(fourcc("av01"));

  }

};

class Box_a1op : public Box

{

public:

  Box_a1op()

  {

    set_short_type(fourcc("a1op"));

  }

  uint8_t op_index = 0;

  std::string dump(Indent&) const override;

  Error write(StreamWriter& writer) const override;

protected:

  Error parse(BitstreamRange& range, const heif_security_limits* limits) override;

};

class Box_a1lx : public Box

{

public:

  Box_a1lx()

  {

    set_short_type(fourcc("a1lx"));

  }

  uint32_t layer_size[3]{};

  std::string dump(Indent&) const override;

  Error write(StreamWriter& writer) const override;

protected:

  Error parse(BitstreamRange& range, const heif_security_limits* limits) override;

};

class HeifPixelImage;

Error fill_av1C_configuration(Box_av1C::configuration* inout_config, const std::shared_ptr<HeifPixelImage>& image);

bool fill_av1C_configuration_from_stream(Box_av1C::configuration* out_config, const uint8_t* data, int dataSize);

#endif