tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

luminance.cc (711B)

      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 #include "lib/jxl/luminance.h"
      7 
      8 #include "lib/jxl/image_metadata.h"
      9 
     10 namespace jxl {
     11 
     12 void SetIntensityTarget(ImageMetadata* m) {
     13  if (m->color_encoding.Tf().IsPQ()) {
     14    // Peak luminance of PQ as defined by SMPTE ST 2084:2014.
     15    m->SetIntensityTarget(10000);
     16  } else if (m->color_encoding.Tf().IsHLG()) {
     17    // Nominal display peak luminance used as a reference by
     18    // Rec. ITU-R BT.2100-2.
     19    m->SetIntensityTarget(1000);
     20  } else {
     21    // SDR
     22    m->SetIntensityTarget(kDefaultIntensityTarget);
     23  }
     24 }
     25 
     26 }  // namespace jxl