// Copyright (c) the JPEG XL Project Authors. All rights reserved.

//

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

#include "lib/jxl/luminance.h"

#include "lib/jxl/base/common.h"

#include "lib/jxl/image_metadata.h"

namespace jxl {

void SetIntensityTarget(ImageMetadata* m) {

  if (m->color_encoding.Tf().IsPQ()) {

    // Peak luminance of PQ as defined by SMPTE ST 2084:2014.

    m->SetIntensityTarget(10000);

  } else if (m->color_encoding.Tf().IsHLG()) {

    // Nominal display peak luminance used as a reference by

    // Rec. ITU-R BT.2100-2.

    m->SetIntensityTarget(1000);

  } else {

    // SDR

    m->SetIntensityTarget(kDefaultIntensityTarget);

  }

}

}  // namespace jxl