text: // Copyright (c) the JPEG XL Project
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //      http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #ifndef LIB_JXL_LUMINANCE_H_
  #define LIB_JXL_LUMINANCE_H_
  
  namespace jxl {
  
  // Chooses a default intensity target based on the transfer function of the
  // image, if known. For SDR images or images not known to be HDR, returns
  // kDefaultIntensityTarget, for images known to have PQ or HLG transfer function
  // returns a higher value. If the image metadata already has a non-zero
  // intensity target, does nothing.
  class CodecInOut;
  void SetIntensityTarget(CodecInOut* io);
  
  }  // namespace jxl
  
  #endif  // LIB_JXL_LUMINANCE_H_
  