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diff --git a/src/dsp/arm/film_grain_neon.h b/src/dsp/arm/film_grain_neon.h
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+++ b/src/dsp/arm/film_grain_neon.h
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+/*
+ * Copyright 2019 The libgav1 Authors
+ *
+ * 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 LIBGAV1_SRC_DSP_ARM_FILM_GRAIN_NEON_H_
+#define LIBGAV1_SRC_DSP_ARM_FILM_GRAIN_NEON_H_
+
+#include "src/dsp/dsp.h"
+#include "src/utils/cpu.h"
+
+namespace libgav1 {
+namespace dsp {
+
+// Initialize members of Dsp::film_grain. This function is not thread-safe.
+void FilmGrainInit_NEON();
+
+}  // namespace dsp
+}  // namespace libgav1
+
+#if LIBGAV1_ENABLE_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainAutoregressionLuma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp10bpp_FilmGrainAutoregressionLuma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainAutoregressionChroma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp10bpp_FilmGrainAutoregressionChroma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainConstructNoiseImageOverlap LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainInitializeScalingLutFunc LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp10bpp_FilmGrainInitializeScalingLutFunc LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainBlendNoiseLuma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp10bpp_FilmGrainBlendNoiseLuma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainBlendNoiseChroma LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp8bpp_FilmGrainBlendNoiseChromaWithCfl LIBGAV1_DSP_NEON
+#define LIBGAV1_Dsp10bpp_FilmGrainBlendNoiseChromaWithCfl LIBGAV1_DSP_NEON
+#endif  // LIBGAV1_ENABLE_NEON
+
+#endif  // LIBGAV1_SRC_DSP_ARM_FILM_GRAIN_NEON_H_