/*

 * Copyright 2023 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or

 * https://www.apache.org/licenses/LICENSE-2.0> or the MIT license

 * <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your

 * option. This file may not be copied, modified, or distributed

 * except according to those terms.

 */

#include <fuzzer/FuzzedDataProvider.h>

#include <algorithm>

#include <random>

#include <type_traits>

#include "ultrahdr_api.h"

#include "ultrahdr/ultrahdrcommon.h"

#include "ultrahdr/jpegr.h"

using namespace ultrahdr;

// Color gamuts for image data, sync with ultrahdr_api.h

constexpr int kCgMin = UHDR_CG_UNSPECIFIED;

constexpr int kCgMax = UHDR_CG_BT_2100;

// Color ranges for image data, sync with ultrahdr_api.h

constexpr int kCrMin = UHDR_CR_UNSPECIFIED;

constexpr int kCrMax = UHDR_CR_FULL_RANGE;

// Transfer functions for image data, sync with ultrahdr_api.h

constexpr int kTfMin = UHDR_CT_UNSPECIFIED;

constexpr int kTfMax = UHDR_CT_SRGB;

class UltraHdrEncFuzzer {

 public:

  UltraHdrEncFuzzer(const uint8_t* data, size_t size) : mFdp(data, size){};

  void process();

  template <typename T>

  void fillBuffer(T* data, int width, int height, int stride);

 private:

  FuzzedDataProvider mFdp;

};

template <typename T>

void UltraHdrEncFuzzer::fillBuffer(T* data, int width, int height, int stride) {

  if (!mFdp.remaining_bytes()) return;

  T* tmp = data;

  std::vector<T> buffer(width);

  for (int i = 0; i < buffer.size(); i++) {

    buffer[i] = mFdp.ConsumeIntegral<T>();

  }

  for (int j = 0; j < height; j++) {

    for (int i = 0; i < width; i += buffer.size()) {

      memcpy(tmp + i, buffer.data(), std::min((int)buffer.size(), (width - i)) * sizeof(*data));

      std::shuffle(buffer.begin(), buffer.end(),

                   std::default_random_engine(std::random_device{}()));

    }

    tmp += stride;

  }

}

void UltraHdrEncFuzzer::fillBuffer<unsigned short>(unsigned short*, int, int, int)

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void UltraHdrEncFuzzer::fillBuffer(T* data, int width, int height, int stride) {

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  if (!mFdp.remaining_bytes()) return;

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  T* tmp = data;

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  std::vector<T> buffer(width);

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  for (int i = 0; i < buffer.size(); i++) {

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    buffer[i] = mFdp.ConsumeIntegral<T>();

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  }

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  for (int j = 0; j < height; j++) {

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    for (int i = 0; i < width; i += buffer.size()) {

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      memcpy(tmp + i, buffer.data(), std::min((int)buffer.size(), (width - i)) * sizeof(*data));

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      std::shuffle(buffer.begin(), buffer.end(),

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                   std::default_random_engine(std::random_device{}()));

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    }

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    tmp += stride;

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  }

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}

Unexecuted instantiation: void UltraHdrEncFuzzer::fillBuffer<unsigned int>(unsigned int*, int, int, int)

Unexecuted instantiation: void UltraHdrEncFuzzer::fillBuffer<unsigned long>(unsigned long*, int, int, int)

void UltraHdrEncFuzzer::fillBuffer<unsigned char>(unsigned char*, int, int, int)

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void UltraHdrEncFuzzer::fillBuffer(T* data, int width, int height, int stride) {

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  if (!mFdp.remaining_bytes()) return;

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  T* tmp = data;

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  std::vector<T> buffer(width);

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  for (int i = 0; i < buffer.size(); i++) {

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    buffer[i] = mFdp.ConsumeIntegral<T>();

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  }

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  for (int j = 0; j < height; j++) {

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    for (int i = 0; i < width; i += buffer.size()) {

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      memcpy(tmp + i, buffer.data(), std::min((int)buffer.size(), (width - i)) * sizeof(*data));

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      std::shuffle(buffer.begin(), buffer.end(),

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                   std::default_random_engine(std::random_device{}()));

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    }

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    tmp += stride;

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  }

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}

void UltraHdrEncFuzzer::process() {

  if (mFdp.remaining_bytes()) {

    struct uhdr_raw_image hdrImg {};

    struct uhdr_raw_image sdrImg {};

    struct uhdr_raw_image gainmapImg {};

    float maxBoost[3], minBoost[3], gamma[3], offsetSdr[3], offsetHdr[3];

    // which encode api to select

    int muxSwitch = mFdp.ConsumeIntegralInRange<int8_t>(0, 4);

    // hdr_img_fmt

    uhdr_img_fmt_t hdr_img_fmt =

        mFdp.PickValueInArray({UHDR_IMG_FMT_24bppYCbCrP010, UHDR_IMG_FMT_32bppRGBA1010102,

                               UHDR_IMG_FMT_64bppRGBAHalfFloat});

    // sdr_img_fmt

    uhdr_img_fmt_t sdr_img_fmt =

        mFdp.ConsumeBool() ? UHDR_IMG_FMT_12bppYCbCr420 : UHDR_IMG_FMT_32bppRGBA8888;

    if (muxSwitch > 1) sdr_img_fmt = UHDR_IMG_FMT_12bppYCbCr420;

    // width

    int width = mFdp.ConsumeIntegralInRange<uint16_t>(kMinWidth, kMaxWidth);

    if (hdr_img_fmt == UHDR_IMG_FMT_24bppYCbCrP010 || sdr_img_fmt == UHDR_IMG_FMT_12bppYCbCr420) {

      width = (width >> 1) << 1;

    }

    // height

    int height = mFdp.ConsumeIntegralInRange<uint16_t>(kMinHeight, kMaxHeight);

    if (hdr_img_fmt == UHDR_IMG_FMT_24bppYCbCrP010 || sdr_img_fmt == UHDR_IMG_FMT_12bppYCbCr420) {

      height = (height >> 1) << 1;

    }

    // hdr Ct

    auto hdr_ct =

        static_cast<uhdr_color_transfer_t>(mFdp.ConsumeIntegralInRange<int8_t>(kTfMin, kTfMax));

    // hdr Cg

    auto hdr_cg =

        static_cast<uhdr_color_gamut_t>(mFdp.ConsumeIntegralInRange<int8_t>(kCgMin, kCgMax));

    // sdr Cg

    auto sdr_cg =

        static_cast<uhdr_color_gamut_t>(mFdp.ConsumeIntegralInRange<int8_t>(kCgMin, kCgMax));

    // color range

    auto hdr_cr =

        static_cast<uhdr_color_range_t>(mFdp.ConsumeIntegralInRange<int8_t>(kCrMin, kCrMax));

    // base quality factor

    auto base_quality = mFdp.ConsumeIntegral<int8_t>();

    // gain_map quality factor

    auto gainmap_quality = mFdp.ConsumeIntegral<int8_t>();

    // multi channel gainmap

    auto multi_channel_gainmap = mFdp.ConsumeIntegral<int8_t>();

    // gainmap scale factor

    auto gm_scale_factor = mFdp.ConsumeIntegralInRange<int16_t>(-32, 192);

    // encoding speed preset

    auto enc_preset = mFdp.ConsumeBool() ? UHDR_USAGE_REALTIME : UHDR_USAGE_BEST_QUALITY;

    bool are_all_channels_identical = mFdp.ConsumeBool();

    // gainmap metadata

    if (are_all_channels_identical) {

      minBoost[0] = minBoost[1] = minBoost[2] =

          mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 64.0f);

      maxBoost[0] = maxBoost[1] = maxBoost[2] =

          mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 64.0f);

      gamma[0] = gamma[1] = gamma[2] = mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 5);

      offsetSdr[0] = offsetSdr[1] = offsetSdr[2] =

          mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 1.0f);

      offsetHdr[0] = offsetHdr[1] = offsetHdr[2] =

          mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 1.0f);

    } else {

      for (int i = 0; i < 3; i++) {

        minBoost[i] = mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 64.0f);

        maxBoost[i] = mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 64.0f);

        gamma[i] = mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 5);

        offsetSdr[i] = mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 1.0f);

        offsetHdr[i] = mFdp.ConsumeFloatingPointInRange<float>(-1.0f, 1.0f);

      }

    }

    auto minCapacity = mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 48.0f);

    auto maxCapacity = mFdp.ConsumeFloatingPointInRange<float>(-4.0f, 48.0f);

    auto useBaseCg = mFdp.ConsumeBool();

    // target display peak brightness

    auto targetDispPeakBrightness = mFdp.ConsumeFloatingPointInRange<float>(100.0f, 10500.0f);

    // raw buffer config

    bool hasHdrStride = mFdp.ConsumeBool();

    size_t yHdrStride = mFdp.ConsumeIntegralInRange<uint16_t>(width, width + 128);

    if (!hasHdrStride) yHdrStride = width;

    bool isHdrUVContiguous = mFdp.ConsumeBool();

    bool hasHdrUVStride = mFdp.ConsumeBool();

    size_t uvHdrStride = mFdp.ConsumeIntegralInRange<uint16_t>(width, width + 128);

    if (!hasHdrUVStride) uvHdrStride = width;

    bool hasSdrStride = mFdp.ConsumeBool();

    size_t ySdrStride = mFdp.ConsumeIntegralInRange<uint16_t>(width, width + 128);

    if (!hasSdrStride) ySdrStride = width;

    bool isSdrUVContiguous = mFdp.ConsumeBool();

    bool hasSdrUVStride = mFdp.ConsumeBool();

    size_t uvSdrStride = mFdp.ConsumeIntegralInRange<uint16_t>(width / 2, width / 2 + 128);

    if (!hasSdrUVStride) uvSdrStride = width / 2;

    // editing effects

    auto applyMirror = mFdp.ConsumeBool();

    uhdr_mirror_direction_t direction =

        mFdp.ConsumeBool() ? UHDR_MIRROR_VERTICAL : UHDR_MIRROR_HORIZONTAL;

    auto applyRotate = mFdp.ConsumeBool();

    int degrees = degrees = mFdp.PickValueInArray({-90, 0, 90, 180, 270});

    auto applyCrop = mFdp.ConsumeBool();

    int left = mFdp.ConsumeIntegral<int16_t>();

    int right = mFdp.ConsumeIntegral<int16_t>();

    int top = mFdp.ConsumeIntegral<int16_t>();

    int bottom = mFdp.ConsumeIntegral<int16_t>();

    auto applyResize = mFdp.ConsumeBool();

    int resizeWidth = mFdp.ConsumeIntegralInRange<int32_t>(-32, kMaxWidth + 128);

    int resizeHeight = mFdp.ConsumeIntegralInRange<int32_t>(-32, kMaxHeight + 128);

    // exif

    char greeting[] = "Exif says hello world";

    uhdr_mem_block_t exif{greeting, mFdp.ConsumeIntegralInRange<uint8_t>(0, sizeof greeting * 2),

                          sizeof greeting};

    ALOGV("encoding configuration options : ");

    ALOGV("encoding api - %d ", (int)muxSwitch);

    ALOGV("image dimensions %d x %d ", (int)width, (int)height);

    ALOGV("hdr intent color aspects: gamut %d, transfer %d, range %d, format %d ", (int)hdr_cg,

          (int)hdr_ct, (int)hdr_cr, (int)hdr_img_fmt);

    ALOGV("sdr intent color aspects: gamut %d, format %d ", (int)sdr_cg, (int)sdr_img_fmt);

    ALOGV(

        "gainmap img config: scale factor %d, enabled multichannel gainmap %s, gainmap quality %d ",

        (int)gm_scale_factor, (int)multi_channel_gainmap ? "Yes" : "No", (int)gainmap_quality);

    ALOGV("base image quality %d ", (int)base_quality);

    ALOGV("encoding preset %d ", (int)enc_preset);

    ALOGV(

        "gainmap metadata: min content boost %f %f %f, max content boost %f %f %f, gamma %f %f %f, "

        "offset sdr %f %f %f, offset hdr %f %f %f, hdr min capacity %f, hdr max capacity %f, "

        "useBaseCg %d",

        (float)minBoost[0], (float)minBoost[1], (float)minBoost[2], (float)maxBoost[0],

        (float)maxBoost[1], (float)maxBoost[2], (float)gamma[0], (float)gamma[1], (float)gamma[2],

        (float)offsetSdr[0], (float)offsetSdr[1], offsetSdr[2], (float)offsetHdr[0],

        (float)offsetHdr[1], (float)offsetHdr[2], (float)minCapacity, (float)maxCapacity,

        (int)useBaseCg);

    ALOGV("hdr intent luma stride %d, chroma stride %d", yHdrStride, uvHdrStride);

    ALOGV("sdr intent luma stride %d, chroma stride %d", ySdrStride, uvSdrStride);

    if (applyMirror) ALOGV("added mirror effect, direction %d", (int)direction);

    if (applyRotate) ALOGV("added rotate effect, degrees %d", (int)degrees);

    if (applyCrop)

      ALOGV("added crop effect, crop-left %d, crop-right %d, crop-top %d, crop-bottom %d", left,

            right, top, bottom);

    if (applyResize)

      ALOGV("added resize effect, resize wd %d, resize ht %d", resizeWidth, resizeHeight);

    std::unique_ptr<uint64_t[]> bufferFpHdr = nullptr;

    std::unique_ptr<uint32_t[]> bufferHdr = nullptr;

    std::unique_ptr<uint16_t[]> bufferYHdr = nullptr;

    std::unique_ptr<uint16_t[]> bufferUVHdr = nullptr;

    std::unique_ptr<uint8_t[]> bufferYSdr = nullptr;

    std::unique_ptr<uint8_t[]> bufferUVSdr = nullptr;

    std::unique_ptr<uint8_t[]> gainMapImageRaw = nullptr;

    uhdr_codec_private_t* enc_handle = uhdr_create_encoder();

    if (!enc_handle) {

      ALOGE("Failed to create encoder");

      return;

    }

#define ON_ERR(x)                              \

  {                                            \

    uhdr_error_info_t status_ = (x);           \

    if (status_.error_code != UHDR_CODEC_OK) { \

      if (status_.has_detail) {                \

        ALOGE("%s", status_.detail);           \

      }                                        \

    }                                          \

  }

    if (muxSwitch != 4) {

      // init p010/rgba1010102 image

      hdrImg.w = width;

      hdrImg.h = height;

      hdrImg.cg = hdr_cg;

      hdrImg.fmt = hdr_img_fmt;

      hdrImg.ct = hdr_ct;

      hdrImg.range = hdr_cr;

      hdrImg.stride[UHDR_PLANE_Y] = yHdrStride;

      if (hdr_img_fmt == UHDR_IMG_FMT_24bppYCbCrP010) {

        if (isHdrUVContiguous) {

          size_t p010Size = yHdrStride * height * 3 / 2;

          bufferYHdr = std::make_unique<uint16_t[]>(p010Size);

          hdrImg.planes[UHDR_PLANE_Y] = bufferYHdr.get();

          fillBuffer<uint16_t>(bufferYHdr.get(), width, height, yHdrStride);

          fillBuffer<uint16_t>(bufferYHdr.get() + yHdrStride * height, width, height / 2,

                               yHdrStride);

          hdrImg.planes[UHDR_PLANE_UV] = bufferYHdr.get() + yHdrStride * height;

          hdrImg.stride[UHDR_PLANE_UV] = yHdrStride;

        } else {

          size_t p010Size = yHdrStride * height;

          bufferYHdr = std::make_unique<uint16_t[]>(p010Size);

          hdrImg.planes[UHDR_PLANE_Y] = bufferYHdr.get();

          fillBuffer<uint16_t>(bufferYHdr.get(), width, height, yHdrStride);

          size_t p010UVSize = uvHdrStride * hdrImg.h / 2;

          bufferUVHdr = std::make_unique<uint16_t[]>(p010UVSize);

          hdrImg.planes[UHDR_PLANE_UV] = bufferUVHdr.get();

          hdrImg.stride[UHDR_PLANE_UV] = uvHdrStride;

          fillBuffer<uint16_t>(bufferUVHdr.get(), width, height / 2, uvHdrStride);

        }

      } else if (hdr_img_fmt == UHDR_IMG_FMT_32bppRGBA1010102) {

        size_t rgba1010102Size = yHdrStride * height;

        bufferHdr = std::make_unique<uint32_t[]>(rgba1010102Size);

        hdrImg.planes[UHDR_PLANE_PACKED] = bufferHdr.get();

        fillBuffer<uint32_t>(bufferHdr.get(), width, height, yHdrStride);

        hdrImg.planes[UHDR_PLANE_U] = nullptr;

        hdrImg.stride[UHDR_PLANE_U] = 0;

      } else if (hdr_img_fmt == UHDR_IMG_FMT_64bppRGBAHalfFloat) {

        size_t rgbafp16Size = yHdrStride * height;

        bufferFpHdr = std::make_unique<uint64_t[]>(rgbafp16Size);

        hdrImg.planes[UHDR_PLANE_PACKED] = bufferFpHdr.get();

        fillBuffer<uint64_t>(bufferFpHdr.get(), width, height, yHdrStride);

        hdrImg.planes[UHDR_PLANE_U] = nullptr;

        hdrImg.stride[UHDR_PLANE_U] = 0;

      }

      hdrImg.planes[UHDR_PLANE_V] = nullptr;

      hdrImg.stride[UHDR_PLANE_V] = 0;

      ON_ERR(uhdr_enc_set_raw_image(enc_handle, &hdrImg, UHDR_HDR_IMG))

    } else {

      size_t map_width = width / ((gm_scale_factor <= 0) ? 1 : gm_scale_factor);

      size_t map_height = height / ((gm_scale_factor <= 0) ? 1 : gm_scale_factor);

      gainmapImg.fmt = UHDR_IMG_FMT_8bppYCbCr400;

      gainmapImg.w = map_width;

      gainmapImg.h = map_height;

      gainmapImg.cg = UHDR_CG_UNSPECIFIED;

      gainmapImg.ct = UHDR_CT_UNSPECIFIED;

      gainmapImg.range = UHDR_CR_FULL_RANGE;

      const size_t graySize = map_width * map_height;

      gainMapImageRaw = std::make_unique<uint8_t[]>(graySize);

      gainmapImg.planes[UHDR_PLANE_Y] = gainMapImageRaw.get();

      gainmapImg.stride[UHDR_PLANE_Y] = map_width;

      gainmapImg.planes[UHDR_PLANE_U] = nullptr;

      gainmapImg.planes[UHDR_PLANE_V] = nullptr;

      gainmapImg.stride[UHDR_PLANE_U] = 0;

      gainmapImg.stride[UHDR_PLANE_V] = 0;

      fillBuffer<uint8_t>(gainMapImageRaw.get(), map_width, map_height, map_width);

    }

    if (muxSwitch > 0) {

      // init yuv420 Image

      if (sdr_img_fmt == UHDR_IMG_FMT_12bppYCbCr420) {

        sdrImg.w = width;

        sdrImg.h = height;

        sdrImg.cg = sdr_cg;

        sdrImg.fmt = UHDR_IMG_FMT_12bppYCbCr420;

        sdrImg.ct = UHDR_CT_SRGB;

        sdrImg.range = UHDR_CR_FULL_RANGE;

        sdrImg.stride[UHDR_PLANE_Y] = ySdrStride;

        if (isSdrUVContiguous) {

          size_t yuv420Size = ySdrStride * height * 3 / 2;

          bufferYSdr = std::make_unique<uint8_t[]>(yuv420Size);

          sdrImg.planes[UHDR_PLANE_Y] = bufferYSdr.get();

          sdrImg.planes[UHDR_PLANE_U] = bufferYSdr.get() + ySdrStride * height;

          sdrImg.planes[UHDR_PLANE_V] = bufferYSdr.get() + ySdrStride * height * 5 / 4;

          sdrImg.stride[UHDR_PLANE_U] = ySdrStride / 2;

          sdrImg.stride[UHDR_PLANE_V] = ySdrStride / 2;

          fillBuffer<uint8_t>(bufferYSdr.get(), width, height, ySdrStride);

          fillBuffer<uint8_t>(bufferYSdr.get() + ySdrStride * height, width / 2, height / 2,

                              ySdrStride / 2);

          fillBuffer<uint8_t>(bufferYSdr.get() + ySdrStride * height * 5 / 4, width / 2, height / 2,

                              ySdrStride / 2);

        } else {

          size_t yuv420YSize = ySdrStride * height;

          bufferYSdr = std::make_unique<uint8_t[]>(yuv420YSize);

          sdrImg.planes[UHDR_PLANE_Y] = bufferYSdr.get();

          fillBuffer<uint8_t>(bufferYSdr.get(), width, height, ySdrStride);

          size_t yuv420UVSize = uvSdrStride * sdrImg.h / 2 * 2;

          bufferUVSdr = std::make_unique<uint8_t[]>(yuv420UVSize);

          sdrImg.planes[UHDR_PLANE_U] = bufferUVSdr.get();

          sdrImg.stride[UHDR_PLANE_U] = uvSdrStride;

          fillBuffer<uint8_t>(bufferUVSdr.get(), width / 2, height / 2, uvSdrStride);

          fillBuffer<uint8_t>(bufferUVSdr.get() + uvSdrStride * height / 2, width / 2, height / 2,

                              uvSdrStride);

          sdrImg.planes[UHDR_PLANE_V] = bufferUVSdr.get() + uvSdrStride * height / 2;

          sdrImg.stride[UHDR_PLANE_V] = uvSdrStride;

        }

      } else if (sdr_img_fmt == UHDR_IMG_FMT_32bppRGBA8888) {

        sdrImg.w = width;

        sdrImg.h = height;

        sdrImg.cg = sdr_cg;

        sdrImg.fmt = UHDR_IMG_FMT_32bppRGBA8888;

        sdrImg.ct = UHDR_CT_SRGB;

        sdrImg.range = UHDR_CR_FULL_RANGE;

        sdrImg.stride[UHDR_PLANE_PACKED] = ySdrStride;

        size_t rgba8888Size = ySdrStride * height;

        bufferHdr = std::make_unique<uint32_t[]>(rgba8888Size);

        sdrImg.planes[UHDR_PLANE_PACKED] = bufferHdr.get();

        fillBuffer<uint32_t>(bufferHdr.get(), width, height, ySdrStride);

        sdrImg.planes[UHDR_PLANE_U] = nullptr;

        sdrImg.planes[UHDR_PLANE_V] = nullptr;

        sdrImg.stride[UHDR_PLANE_U] = 0;

        sdrImg.stride[UHDR_PLANE_V] = 0;

      }

    }

    if (muxSwitch == 1 || muxSwitch == 2) {

      ON_ERR(uhdr_enc_set_raw_image(enc_handle, &sdrImg, UHDR_SDR_IMG))

    }

    ON_ERR(uhdr_enc_set_quality(enc_handle, base_quality, UHDR_BASE_IMG))

    ON_ERR(uhdr_enc_set_quality(enc_handle, gainmap_quality, UHDR_GAIN_MAP_IMG))

    ON_ERR(uhdr_enc_set_exif_data(enc_handle, &exif))

    ON_ERR(uhdr_enc_set_using_multi_channel_gainmap(enc_handle, multi_channel_gainmap))

    ON_ERR(uhdr_enc_set_gainmap_scale_factor(enc_handle, gm_scale_factor))

    ON_ERR(uhdr_enc_set_gainmap_gamma(enc_handle, gamma[0]))

    ON_ERR(uhdr_enc_set_min_max_content_boost(enc_handle, minBoost[0], maxBoost[0]))

    ON_ERR(uhdr_enc_set_target_display_peak_brightness(enc_handle, targetDispPeakBrightness))

    ON_ERR(uhdr_enc_set_preset(enc_handle, enc_preset))

    ON_ERR(uhdr_enable_gpu_acceleration(enc_handle, 1))

    if (applyMirror) ON_ERR(uhdr_add_effect_mirror(enc_handle, direction))

    if (applyRotate) ON_ERR(uhdr_add_effect_rotate(enc_handle, degrees))

    if (applyCrop) ON_ERR(uhdr_add_effect_crop(enc_handle, left, right, top, bottom))

    if (applyResize) ON_ERR(uhdr_add_effect_resize(enc_handle, resizeWidth, resizeHeight))

    uhdr_error_info_t status = {UHDR_CODEC_OK, 0, ""};

    if (muxSwitch == 0 || muxSwitch == 1) {  // api 0 or api 1

      status = uhdr_encode(enc_handle);

    } else {

      // compressed img

      JpegEncoderHelper encoder;

      if (encoder.compressImage(&sdrImg, base_quality, nullptr, 0).error_code == UHDR_CODEC_OK) {

        struct uhdr_compressed_image jpegImg = encoder.getCompressedImage();

        jpegImg.cg = sdr_cg;

        if (muxSwitch != 4) {

          // for api 4 compressed image will be set with UHDR_BASE_IMG intent

          uhdr_enc_set_compressed_image(enc_handle, &jpegImg, UHDR_SDR_IMG);

        }

        if (muxSwitch == 2 || muxSwitch == 3) {  // api 2 or api 3

          status = uhdr_encode(enc_handle);

        } else if (muxSwitch == 4) {  // api 4

          JpegEncoderHelper gainMapEncoder;

          if (gainMapEncoder.compressImage(&gainmapImg, gainmap_quality, nullptr, 0).error_code ==

              UHDR_CODEC_OK) {

            struct uhdr_compressed_image jpegGainMap = gainMapEncoder.getCompressedImage();

            uhdr_gainmap_metadata metadata;

            std::copy(maxBoost, maxBoost + 3, metadata.max_content_boost);

            std::copy(minBoost, minBoost + 3, metadata.min_content_boost);

            std::copy(gamma, gamma + 3, metadata.gamma);

            std::copy(offsetSdr, offsetSdr + 3, metadata.offset_sdr);

            std::copy(offsetHdr, offsetHdr + 3, metadata.offset_hdr);

            metadata.hdr_capacity_min = minCapacity;

            metadata.hdr_capacity_max = maxCapacity;

            metadata.use_base_cg = useBaseCg;

            ON_ERR(uhdr_enc_set_compressed_image(enc_handle, &jpegImg, UHDR_BASE_IMG))

            ON_ERR(uhdr_enc_set_gainmap_image(enc_handle, &jpegGainMap, &metadata))

            status = uhdr_encode(enc_handle);

          }

        }

      }

    }

    if (status.error_code == UHDR_CODEC_OK) {

      auto output = uhdr_get_encoded_stream(enc_handle);

      if (output != nullptr) {

        uhdr_codec_private_t* dec_handle = uhdr_create_decoder();

        if (dec_handle) {

          ON_ERR(uhdr_dec_set_image(dec_handle, output))

          ON_ERR(uhdr_dec_set_out_color_transfer(dec_handle, hdr_ct))

          if (hdr_ct == UHDR_CT_LINEAR)

            ON_ERR(uhdr_dec_set_out_img_format(dec_handle, UHDR_IMG_FMT_64bppRGBAHalfFloat))

          else if (hdr_ct == UHDR_CT_SRGB)

            ON_ERR(uhdr_dec_set_out_img_format(dec_handle, UHDR_IMG_FMT_32bppRGBA8888))

          else

            ON_ERR(uhdr_dec_set_out_img_format(dec_handle, UHDR_IMG_FMT_32bppRGBA1010102))

          ON_ERR(uhdr_decode(dec_handle))

          uhdr_release_decoder(dec_handle);

        }

      }

    }

    uhdr_reset_encoder(enc_handle);

    uhdr_release_encoder(enc_handle);

    ON_ERR(status);

  }

}

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  UltraHdrEncFuzzer fuzzHandle(data, size);

  fuzzHandle.process();

  return 0;

}