26 lines
711 B
C++
26 lines
711 B
C++
// Copyright (c) the JPEG XL Project Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "lib/jxl/luminance.h"
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#include "lib/jxl/image_metadata.h"
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namespace jxl {
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void SetIntensityTarget(ImageMetadata* m) {
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if (m->color_encoding.Tf().IsPQ()) {
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// Peak luminance of PQ as defined by SMPTE ST 2084:2014.
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m->SetIntensityTarget(10000);
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} else if (m->color_encoding.Tf().IsHLG()) {
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// Nominal display peak luminance used as a reference by
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// Rec. ITU-R BT.2100-2.
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m->SetIntensityTarget(1000);
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} else {
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// SDR
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m->SetIntensityTarget(kDefaultIntensityTarget);
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}
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}
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} // namespace jxl
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