/*

 * HEIF AVC codec.

 * Copyright (c) 2023 Brad Hards <bradh@frogmouth.net>

 *

 * 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_AVC_BOXES_H

#define HEIF_AVC_BOXES_H

#include "box.h"

#include "error.h"

#include <cstdint>

#include <vector>

#include <string>

#include <memory>

#include "image-items/image_item.h"

#include "sequences/seq_boxes.h"

class Box_avcC : public Box {

public:

  Box_avcC() { set_short_type(fourcc("avcC")); }

  bool is_essential() const override { return true; }

  struct configuration {

    uint8_t configuration_version = 0;

    uint8_t AVCProfileIndication = 0; // profile_idc

    uint8_t profile_compatibility = 0; // constraint set flags

    uint8_t AVCLevelIndication = 0; // level_idc

    uint8_t lengthSize = 0; // length of NAL size field. Must be one of: 1,2,4

    heif_chroma chroma_format = heif_chroma_420; // Note: avcC integer value can be cast to heif_chroma enum

    uint8_t bit_depth_luma = 8;

    uint8_t bit_depth_chroma = 8;

  };

  void set_configuration(const configuration& config)

  {

    m_configuration = config;

  }

  const configuration& get_configuration() const

  {

    return m_configuration;

  }

  configuration& get_configuration()

  {

    return m_configuration;

  }

  const std::vector< std::vector<uint8_t> > getSequenceParameterSets() const

  {

    return m_sps;

  }

  const std::vector< std::vector<uint8_t> > getPictureParameterSets() const

  {

    return m_pps;

  }

  const std::vector< std::vector<uint8_t> > getSequenceParameterSetExt() const

  {

    return m_sps_ext;

  }

  void get_header_nals(std::vector<uint8_t>& data) const;

  void append_sps_nal(const uint8_t* data, size_t size);

  void append_sps_ext_nal(const uint8_t* data, size_t size);

  void append_pps_nal(const uint8_t* data, size_t size);

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

  Error write(StreamWriter &writer) const override;

protected:

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

  std::string profileIndicationAsText() const;

private:

  configuration m_configuration;

  std::vector< std::vector<uint8_t> > m_sps;

  std::vector< std::vector<uint8_t> > m_pps;

  std::vector< std::vector<uint8_t> > m_sps_ext;

};

class Box_avc1 : public Box_VisualSampleEntry

{

public:

  Box_avc1()

  {

    set_short_type(fourcc("avc1"));

  }

};

Error parse_sps_for_avcC_configuration(const uint8_t* sps, size_t size,

                                       Box_avcC::configuration* inout_config,

                                       int* width, int* height);

#endif