1 // Copyright (c) the JPEG XL Project Authors. All rights reserved.
2 //
3 // Use of this source code is governed by a BSD-style
4 // license that can be found in the LICENSE file.
5 
6 #ifndef LIB_JXL_LUMINANCE_H_
7 #define LIB_JXL_LUMINANCE_H_
8 
9 namespace jxl {
10 
11 // Chooses a default intensity target based on the transfer function of the
12 // image, if known. For SDR images or images not known to be HDR, returns
13 // kDefaultIntensityTarget, for images known to have PQ or HLG transfer function
14 // returns a higher value. If the image metadata already has a non-zero
15 // intensity target, does nothing.
16 class CodecInOut;
17 void SetIntensityTarget(CodecInOut* io);
18 
19 }  // namespace jxl
20 
21 #endif  // LIB_JXL_LUMINANCE_H_
22