Add support for ultra HDR overlays

PiperOrigin-RevId: 637863706

RELEASENOTES.md

@@ -139,6 +139,7 @@
         ([#1055](https://github.com/androidx/media/pull/1055)).
     *   Maintain a consistent luminance range across different HDR content (uses
         the HLG range).
+    *   Add support for Ultra HDR (bitmap) overlays on HDR content.
 *   Muxers:
 *   IMA extension:
     *   Promote API that is required for apps to play

libraries/effect/src/main/assets/shaders/insert_ultra_hdr.glsl

@@ -0,0 +1,72 @@
+// The value is calculated as targetHdrPeakBrightnessInNits /
+// targetSdrWhitePointInNits. In other effect HDR processing and some parts of
+// the wider android ecosystem the assumption is
+// targetHdrPeakBrightnessInNits=1000 and targetSdrWhitePointInNits=500
+const float HDR_SDR_RATIO = 2.0;
+
+// Matrix values are calculated as inverse of RGB_BT2020_TO_XYZ.
+const mat3 XYZ_TO_RGB_BT2020 =
+    mat3(1.71665, -0.666684, 0.0176399, -0.355671, 1.61648, -0.0427706,
+         -0.253366, 0.0157685, 0.942103);
+// Matrix values are calculated as inverse of XYZ_TO_RGB_BT709.
+const mat3 RGB_BT709_TO_XYZ =
+    mat3(0.412391, 0.212639, 0.0193308, 0.357584, 0.715169, 0.119195, 0.180481,
+         0.0721923, 0.950532);
+
+// Reference:
+// https://developer.android.com/reference/android/graphics/Gainmap#applying-a-gainmap-manually
+// Reference Implementation:
+// https://cs.android.com/android/platform/superproject/main/+/main:frameworks/base/libs/hwui/effects/GainmapRenderer.cpp;l=117-146;drc=fadc20184ccb27fe15bb862e6e03fa6d05d41eac
+highp vec3 applyGainmap(vec4 S, vec4 G, int uGainmapIsAlpha, int uNoGamma,
+                        int uSingleChannel, vec4 uLogRatioMin,
+                        vec4 uLogRatioMax, vec4 uEpsilonSdr, vec4 uEpsilonHdr,
+                        vec4 uGainmapGamma, float uDisplayRatioHdr,
+                        float uDisplayRatioSdr) {
+  float W = clamp((log(HDR_SDR_RATIO) - log(uDisplayRatioSdr)) /
+                      (log(uDisplayRatioHdr) - log(uDisplayRatioSdr)),
+                  0.0, 1.0);
+  vec3 H;
+  if (uGainmapIsAlpha == 1) {
+    G = vec4(G.a, G.a, G.a, 1.0);
+  }
+  if (uSingleChannel == 1) {
+    mediump float L;
+    if (uNoGamma == 1) {
+      L = mix(uLogRatioMin.r, uLogRatioMax.r, G.r);
+    } else {
+      L = mix(uLogRatioMin.r, uLogRatioMax.r, pow(G.r, uGainmapGamma.r));
+    }
+    H = (S.rgb + uEpsilonSdr.rgb) * exp(L * W) - uEpsilonHdr.rgb;
+  } else {
+    mediump vec3 L;
+    if (uNoGamma == 1) {
+      L = mix(uLogRatioMin.rgb, uLogRatioMax.rgb, G.rgb);
+    } else {
+      L = mix(uLogRatioMin.rgb, uLogRatioMax.rgb,
+              pow(G.rgb, uGainmapGamma.rgb));
+    }
+    H = (S.rgb + uEpsilonSdr.rgb) * exp(L * W) - uEpsilonHdr.rgb;
+  }
+  return H;
+}
+
+highp vec3 bt709ToBt2020(vec3 bt709Color) {
+  return XYZ_TO_RGB_BT2020 * RGB_BT709_TO_XYZ * bt709Color;
+}
+
+vec3 scaleHdrLuminance(vec3 linearColor) {
+  const float SDR_MAX_LUMINANCE = 500.0;
+  const float HDR_MAX_LUMINANCE = 1000.0;
+  return linearColor * SDR_MAX_LUMINANCE / HDR_MAX_LUMINANCE;
+}
+
+// sRGB EOTF for one channel.
+float srgbEotfSingleChannel(float srgb) {
+  return srgb <= 0.04045 ? srgb / 12.92 : pow((srgb + 0.055) / 1.055, 2.4);
+}
+
+// sRGB EOTF.
+vec4 srgbEotf(vec4 srgb) {
+  return vec4(srgbEotfSingleChannel(srgb.r), srgbEotfSingleChannel(srgb.g),
+              srgbEotfSingleChannel(srgb.b), srgb.a);
+}

libraries/effect/src/main/java/androidx/media3/effect/DefaultShaderProgram.java

@@ -21,10 +21,8 @@ import static androidx.media3.common.VideoFrameProcessor.INPUT_TYPE_BITMAP;
 import static androidx.media3.common.util.Assertions.checkArgument;
 import static androidx.media3.common.util.Assertions.checkState;
 import static androidx.media3.effect.DefaultVideoFrameProcessor.WORKING_COLOR_SPACE_LINEAR;
-import static java.lang.Math.log;
 
 import android.content.Context;
-import android.graphics.Bitmap;
 import android.graphics.Gainmap;
 import android.opengl.GLES20;
 import android.opengl.Matrix;
@@ -694,33 +692,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
       throw new IllegalStateException("Gainmaps not supported under API 34.");
     }
     glProgram.setSamplerTexIdUniform("uGainmapTexSampler", gainmapTexId, /* texUnitIndex= */ 1);
-
+    GainmapUtil.setGainmapUniforms(glProgram, lastGainmap, C.INDEX_UNSET);
-    boolean gainmapIsAlpha = lastGainmap.getGainmapContents().getConfig() == Bitmap.Config.ALPHA_8;
-    float[] gainmapGamma = lastGainmap.getGamma();
-    boolean noGamma = gainmapGamma[0] == 1f && gainmapGamma[1] == 1f && gainmapGamma[2] == 1f;
-    boolean singleChannel =
-        areAllChannelsEqual(gainmapGamma)
-            && areAllChannelsEqual(lastGainmap.getRatioMax())
-            && areAllChannelsEqual(lastGainmap.getRatioMin());
-
-    glProgram.setIntUniform("uGainmapIsAlpha", gainmapIsAlpha ? GL_TRUE : GL_FALSE);
-    glProgram.setIntUniform("uNoGamma", noGamma ? GL_TRUE : GL_FALSE);
-    glProgram.setIntUniform("uSingleChannel", singleChannel ? GL_TRUE : GL_FALSE);
-    glProgram.setFloatsUniform("uLogRatioMin", logRgb(lastGainmap.getRatioMin()));
-    glProgram.setFloatsUniform("uLogRatioMax", logRgb(lastGainmap.getRatioMax()));
-    glProgram.setFloatsUniform("uEpsilonSdr", lastGainmap.getEpsilonSdr());
-    glProgram.setFloatsUniform("uEpsilonHdr", lastGainmap.getEpsilonHdr());
-    glProgram.setFloatsUniform("uGainmapGamma", gainmapGamma);
-    glProgram.setFloatUniform("uDisplayRatioHdr", lastGainmap.getDisplayRatioForFullHdr());
-    glProgram.setFloatUniform("uDisplayRatioSdr", lastGainmap.getMinDisplayRatioForHdrTransition());
-    GlUtil.checkGlError();
-  }
-
-  private static boolean areAllChannelsEqual(float[] channels) {
-    return channels[0] == channels[1] && channels[1] == channels[2];
-  }
-
-  private static float[] logRgb(float[] values) {
-    return new float[] {(float) log(values[0]), (float) log(values[1]), (float) log(values[2])};
   }
 }

libraries/effect/src/main/java/androidx/media3/effect/GainmapUtil.java

@@ -15,8 +15,16 @@
  */
 package androidx.media3.effect;
 
+import static android.opengl.GLES20.GL_FALSE;
+import static android.opengl.GLES20.GL_TRUE;
+import static java.lang.Math.log;
+
+import android.graphics.Bitmap;
 import android.graphics.Gainmap;
 import androidx.annotation.RequiresApi;
+import androidx.media3.common.C;
+import androidx.media3.common.util.GlProgram;
+import androidx.media3.common.util.GlUtil;
 import androidx.media3.common.util.UnstableApi;
 
 /** Utilities for Gainmaps. */
@@ -37,4 +45,51 @@ import androidx.media3.common.util.UnstableApi;
         && g1.getGainmapContents() == g2.getGainmapContents()
         && g1.getGainmapContents().getGenerationId() == g2.getGainmapContents().getGenerationId();
   }
+
+  /**
+   * Sets the uniforms for applying a gainmap to a base image.
+   *
+   * @param glProgram The {@link GlProgram}.
+   * @param gainmap The {@link Gainmap}.
+   * @param index The index to add to the end of the uniforms, or {@link C#INDEX_UNSET}, is no index
+   *     is to be added.
+   */
+  @RequiresApi(34)
+  public static void setGainmapUniforms(GlProgram glProgram, Gainmap gainmap, int index)
+      throws GlUtil.GlException {
+    boolean gainmapIsAlpha = gainmap.getGainmapContents().getConfig() == Bitmap.Config.ALPHA_8;
+    float[] gainmapGamma = gainmap.getGamma();
+    boolean noGamma = gainmapGamma[0] == 1f && gainmapGamma[1] == 1f && gainmapGamma[2] == 1f;
+    boolean singleChannel =
+        areAllChannelsEqual(gainmapGamma)
+            && areAllChannelsEqual(gainmap.getRatioMax())
+            && areAllChannelsEqual(gainmap.getRatioMin());
+
+    glProgram.setIntUniform(
+        addIndex("uGainmapIsAlpha", index), gainmapIsAlpha ? GL_TRUE : GL_FALSE);
+    glProgram.setIntUniform(addIndex("uNoGamma", index), noGamma ? GL_TRUE : GL_FALSE);
+    glProgram.setIntUniform(addIndex("uSingleChannel", index), singleChannel ? GL_TRUE : GL_FALSE);
+    glProgram.setFloatsUniform(addIndex("uLogRatioMin", index), logRgb(gainmap.getRatioMin()));
+    glProgram.setFloatsUniform(addIndex("uLogRatioMax", index), logRgb(gainmap.getRatioMax()));
+    glProgram.setFloatsUniform(addIndex("uEpsilonSdr", index), gainmap.getEpsilonSdr());
+    glProgram.setFloatsUniform(addIndex("uEpsilonHdr", index), gainmap.getEpsilonHdr());
+    glProgram.setFloatsUniform(addIndex("uGainmapGamma", index), gainmapGamma);
+    glProgram.setFloatUniform(
+        addIndex("uDisplayRatioHdr", index), gainmap.getDisplayRatioForFullHdr());
+    glProgram.setFloatUniform(
+        addIndex("uDisplayRatioSdr", index), gainmap.getMinDisplayRatioForHdrTransition());
+    GlUtil.checkGlError();
+  }
+
+  private static boolean areAllChannelsEqual(float[] channels) {
+    return channels[0] == channels[1] && channels[1] == channels[2];
+  }
+
+  private static String addIndex(String s, int index) {
+    return index == C.INDEX_UNSET ? s : s + index;
+  }
+
+  private static float[] logRgb(float[] values) {
+    return new float[] {(float) log(values[0]), (float) log(values[1]), (float) log(values[2])};
+  }
 }

libraries/effect/src/main/java/androidx/media3/effect/OverlayEffect.java

@@ -25,7 +25,8 @@ import com.google.common.collect.ImmutableList;
  * is displayed on top).
  *
  * <p>This effect assumes a non-{@linkplain DefaultVideoFrameProcessor#WORKING_COLOR_SPACE_LINEAR
- * linear} working color space.
+ * linear} working color space for SDR input and a {@linkplain
+ * DefaultVideoFrameProcessor#WORKING_COLOR_SPACE_LINEAR linear} working color space or HDR input.
  */
 @UnstableApi
 public final class OverlayEffect implements GlEffect {
@@ -44,6 +45,6 @@ public final class OverlayEffect implements GlEffect {
   @Override
   public BaseGlShaderProgram toGlShaderProgram(Context context, boolean useHdr)
       throws VideoFrameProcessingException {
-    return new OverlayShaderProgram(useHdr, overlays);
+    return new OverlayShaderProgram(context, useHdr, overlays);
   }
 }

libraries/effect/src/main/java/androidx/media3/effect/OverlayShaderProgram.java

@@ -16,44 +16,78 @@
 package androidx.media3.effect;
 
 import static androidx.media3.common.util.Assertions.checkArgument;
+import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Util.formatInvariant;
+import static androidx.media3.common.util.Util.loadAsset;
 
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Gainmap;
 import android.opengl.GLES20;
+import android.util.SparseArray;
+import android.util.SparseIntArray;
+import androidx.annotation.Nullable;
+import androidx.media3.common.C;
 import androidx.media3.common.VideoFrameProcessingException;
 import androidx.media3.common.util.GlProgram;
 import androidx.media3.common.util.GlUtil;
 import androidx.media3.common.util.Size;
+import androidx.media3.common.util.Util;
 import com.google.common.collect.ImmutableList;
+import java.io.IOException;
 
 /** Applies zero or more {@link TextureOverlay}s onto each frame. */
 /* package */ final class OverlayShaderProgram extends BaseGlShaderProgram {
 
+  private static final String ULTRA_HDR_INSERT = "shaders/insert_ultra_hdr.glsl";
+
   private final GlProgram glProgram;
   private final SamplerOverlayMatrixProvider samplerOverlayMatrixProvider;
   private final ImmutableList<TextureOverlay> overlays;
+  private final boolean useHdr;
+  private final SparseArray<Gainmap> lastGainmaps;
+  private final SparseIntArray gainmapTexIds;
 
   /**
    * Creates a new instance.
    *
+   * @param context The {@link Context}
    * @param useHdr Whether input textures come from an HDR source. If {@code true}, colors will be
-   *     in linear RGB BT.2020. If {@code false}, colors will be in linear RGB BT.709.
+   *     in linear RGB BT.2020. If {@code false}, colors will be in linear RGB BT.709. useHdr is
+   *     only supported on API 34+ for {@link BitmapOverlay}s, where the {@link Bitmap} contains a
+   *     {@link Gainmap}.
    * @throws VideoFrameProcessingException If a problem occurs while reading shader files.
    */
-  public OverlayShaderProgram(boolean useHdr, ImmutableList<TextureOverlay> overlays)
+  public OverlayShaderProgram(
+      Context context, boolean useHdr, ImmutableList<TextureOverlay> overlays)
       throws VideoFrameProcessingException {
     super(/* useHighPrecisionColorComponents= */ useHdr, /* texturePoolCapacity= */ 1);
-    checkArgument(!useHdr, "OverlayShaderProgram does not support HDR colors yet.");
+    if (useHdr) {
+      // Each UltraHDR overlay uses an extra texture to apply the gainmap to the base in the shader.
+      checkArgument(
+          overlays.size() <= 7,
+          "OverlayShaderProgram does not support more than 7 HDR overlays in the same instance.");
+      checkArgument(Util.SDK_INT >= 34);
+    } else {
       // The maximum number of samplers allowed in a single GL program is 16.
       // We use one for every overlay and one for the video.
       checkArgument(
           overlays.size() <= 15,
-        "OverlayShaderProgram does not support more than 15 overlays in the same instance.");
+          "OverlayShaderProgram does not support more than 15 SDR overlays in the same instance.");
+    }
+
+    this.useHdr = useHdr;
     this.overlays = overlays;
     this.samplerOverlayMatrixProvider = new SamplerOverlayMatrixProvider();
+    lastGainmaps = new SparseArray<>();
+    gainmapTexIds = new SparseIntArray();
     try {
       glProgram =
-          new GlProgram(createVertexShader(overlays.size()), createFragmentShader(overlays.size()));
+          new GlProgram(
-    } catch (GlUtil.GlException e) {
+              createVertexShader(overlays.size()),
+              createFragmentShader(context, overlays.size(), useHdr));
+    } catch (GlUtil.GlException | IOException e) {
       throw new VideoFrameProcessingException(e);
     }
 
@@ -74,12 +108,34 @@ import com.google.common.collect.ImmutableList;
   }
 
   @Override
+  @SuppressLint("NewApi") // Checked API level in constructor
   public void drawFrame(int inputTexId, long presentationTimeUs)
       throws VideoFrameProcessingException {
     try {
       glProgram.use();
       for (int texUnitIndex = 1; texUnitIndex <= overlays.size(); texUnitIndex++) {
         TextureOverlay overlay = overlays.get(texUnitIndex - 1);
+
+        if (useHdr) {
+          checkArgument(overlay instanceof BitmapOverlay);
+          Bitmap bitmap = ((BitmapOverlay) overlay).getBitmap(presentationTimeUs);
+          checkArgument(bitmap.hasGainmap());
+          Gainmap gainmap = checkNotNull(bitmap.getGainmap());
+          @Nullable Gainmap lastGainmap = lastGainmaps.get(texUnitIndex);
+          if (lastGainmap == null || !GainmapUtil.equals(lastGainmap, gainmap)) {
+            lastGainmaps.put(texUnitIndex, gainmap);
+            if (gainmapTexIds.get(texUnitIndex, /* valueIfKeyNotFound= */ C.INDEX_UNSET)
+                == C.INDEX_UNSET) {
+              gainmapTexIds.put(texUnitIndex, GlUtil.createTexture(gainmap.getGainmapContents()));
+            } else {
+              GlUtil.setTexture(gainmapTexIds.get(texUnitIndex), gainmap.getGainmapContents());
+            }
+            glProgram.setSamplerTexIdUniform(
+                "uGainmapTexSampler" + texUnitIndex, gainmapTexIds.get(texUnitIndex), texUnitIndex);
+            GainmapUtil.setGainmapUniforms(glProgram, lastGainmaps.get(texUnitIndex), texUnitIndex);
+          }
+        }
+
         glProgram.setSamplerTexIdUniform(
             formatInvariant("uOverlayTexSampler%d", texUnitIndex),
             overlay.getTextureId(presentationTimeUs),
@@ -111,11 +167,17 @@ import com.google.common.collect.ImmutableList;
     super.release();
     try {
       glProgram.delete();
-    } catch (GlUtil.GlException e) {
-      throw new VideoFrameProcessingException(e);
-    }
       for (int i = 0; i < overlays.size(); i++) {
         overlays.get(i).release();
+        if (useHdr) {
+          int gainmapTexId = gainmapTexIds.get(i, /* valueIfKeyNotFound= */ C.INDEX_UNSET);
+          if (gainmapTexId != C.INDEX_UNSET) {
+            GlUtil.deleteTexture(gainmapTexId);
+          }
+        }
+      }
+    } catch (GlUtil.GlException e) {
+      throw new VideoFrameProcessingException(e);
     }
   }
 
@@ -159,13 +221,15 @@ import com.google.common.collect.ImmutableList;
     return shader.toString();
   }
 
-  private static String createFragmentShader(int numOverlays) {
+  private static String createFragmentShader(Context context, int numOverlays, boolean useHdr)
+      throws IOException {
     StringBuilder shader =
         new StringBuilder()
             .append("#version 100\n")
             .append("precision mediump float;\n")
             .append("uniform sampler2D uVideoTexSampler0;\n")
             .append("varying vec2 vVideoTexSamplingCoord0;\n")
+            .append("\n")
             .append("// Manually implementing the CLAMP_TO_BORDER texture wrapping option\n")
             .append(
                 "// (https://open.gl/textures) since it's not implemented until OpenGL ES 3.2.\n")
@@ -190,11 +254,32 @@ import com.google.common.collect.ImmutableList;
             .append("}\n")
             .append("\n");
 
+    if (useHdr) {
+      shader.append(loadAsset(context, ULTRA_HDR_INSERT));
+    }
+
     for (int texUnitIndex = 1; texUnitIndex <= numOverlays; texUnitIndex++) {
       shader
           .append(formatInvariant("uniform sampler2D uOverlayTexSampler%d;\n", texUnitIndex))
           .append(formatInvariant("uniform float uOverlayAlphaScale%d;\n", texUnitIndex))
-          .append(formatInvariant("varying vec2 vOverlayTexSamplingCoord%d;\n", texUnitIndex));
+          .append(formatInvariant("varying vec2 vOverlayTexSamplingCoord%d;\n", texUnitIndex))
+          .append("\n");
+      if (useHdr) {
+        shader
+            .append("// Uniforms for applying the gainmap to the base.\n")
+            .append(formatInvariant("uniform sampler2D uGainmapTexSampler%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform int uGainmapIsAlpha%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform int uNoGamma%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform int uSingleChannel%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform vec4 uLogRatioMin%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform vec4 uLogRatioMax%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform vec4 uEpsilonSdr%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform vec4 uEpsilonHdr%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform vec4 uGainmapGamma%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform float uDisplayRatioHdr%d;\n", texUnitIndex))
+            .append(formatInvariant("uniform float uDisplayRatioSdr%d;\n", texUnitIndex))
+            .append("\n");
+      }
     }
 
     shader
@@ -212,11 +297,41 @@ import com.google.common.collect.ImmutableList;
           .append(
               formatInvariant(
                   "    uOverlayTexSampler%d, vOverlayTexSamplingCoord%d, uOverlayAlphaScale%d);\n",
+                  texUnitIndex, texUnitIndex, texUnitIndex));
+      String overlayMixColor = "electricalOverlayColor";
+      if (useHdr) {
+        shader
+            .append(
+                formatInvariant(
+                    "  vec4 gainmap%d = texture2D(uGainmapTexSampler%d,"
+                        + " vOverlayTexSamplingCoord%d);\n",
+                    texUnitIndex, texUnitIndex, texUnitIndex))
+            .append(formatInvariant("  vec3 opticalBt709Color%d = applyGainmap(\n", texUnitIndex))
+            .append(
+                formatInvariant(
+                    "      srgbEotf(electricalOverlayColor%d), gainmap%d, uGainmapIsAlpha%d,\n",
                     texUnitIndex, texUnitIndex, texUnitIndex))
             .append(
                 formatInvariant(
-                  "  fragColor = getMixColor(fragColor, electricalOverlayColor%d);\n",
+                    "      uNoGamma%d, uSingleChannel%d, uLogRatioMin%d, uLogRatioMax%d,"
-                  texUnitIndex));
+                        + " uEpsilonSdr%d,\n",
+                    texUnitIndex, texUnitIndex, texUnitIndex, texUnitIndex, texUnitIndex))
+            .append(
+                formatInvariant(
+                    "      uEpsilonHdr%d, uGainmapGamma%d, uDisplayRatioHdr%d,"
+                        + " uDisplayRatioSdr%d);\n",
+                    texUnitIndex, texUnitIndex, texUnitIndex, texUnitIndex))
+            .append(formatInvariant("  vec4 opticalBt2020OverlayColor%d =\n", texUnitIndex))
+            .append(
+                formatInvariant(
+                    "      vec4(scaleHdrLuminance(bt709ToBt2020(opticalBt709Color%d)),"
+                        + " electricalOverlayColor%d.a);\n",
+                    texUnitIndex, texUnitIndex));
+        overlayMixColor = "opticalBt2020OverlayColor";
+      }
+      shader.append(
+          formatInvariant(
+              "  fragColor = getMixColor(fragColor, %s%d);\n", overlayMixColor, texUnitIndex));
     }
 
     shader.append("  gl_FragColor = fragColor;\n").append("}\n");

libraries/transformer/src/androidTest/java/androidx/media3/transformer/mh/DefaultVideoFrameProcessorTextureOutputPixelTest.java

@@ -34,6 +34,7 @@ import static com.google.common.truth.Truth.assertThat;
 
 import android.content.Context;
 import android.graphics.Bitmap;
+import android.graphics.Matrix;
 import androidx.media3.common.C;
 import androidx.media3.common.ColorInfo;
 import androidx.media3.common.Effect;
@@ -94,6 +95,10 @@ public final class DefaultVideoFrameProcessorTextureOutputPixelTest {
       "test-generated-goldens/hdr-goldens/original_hlg10_to_pq.png";
   private static final String PQ_TO_HLG_PNG_ASSET_PATH =
       "test-generated-goldens/hdr-goldens/original_hdr10_to_hlg.png";
+  private static final String ULTRA_HDR_OVERLAY_HLG_PNG_ASSET_PATH =
+      "test-generated-goldens/hdr-goldens/ultrahdr_overlay_hlg.png";
+  private static final String ULTRA_HDR_OVERLAY_PQ_PNG_ASSET_PATH =
+      "test-generated-goldens/hdr-goldens/ultrahdr_overlay_pq.png";
 
   /** Input SDR video of which we only use the first frame. */
   private static final String INPUT_SDR_MP4_ASSET_STRING = "media/mp4/sample.mp4";
@@ -222,6 +227,88 @@ public final class DefaultVideoFrameProcessorTextureOutputPixelTest {
         .isAtMost(MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE_DIFFERENT_DEVICE);
   }
 
+  @Test
+  public void ultraHdrBitmapOverlay_hlg10Input_matchesGoldenFile() throws Exception {
+    Context context = getApplicationContext();
+    Format format = MP4_ASSET_1080P_5_SECOND_HLG10_FORMAT;
+    assumeDeviceSupportsUltraHdrEditing();
+    assumeDeviceSupportsHdrEditing(testId, format);
+    assumeFormatsSupported(context, testId, /* inputFormat= */ format, /* outputFormat= */ null);
+    ColorInfo colorInfo = checkNotNull(format.colorInfo);
+    Bitmap inputBitmap = readBitmap(ULTRA_HDR_ASSET_PATH);
+    inputBitmap =
+        Bitmap.createScaledBitmap(
+            inputBitmap,
+            inputBitmap.getWidth() / 8,
+            inputBitmap.getHeight() / 8,
+            /* filter= */ true);
+    Matrix matrix = new Matrix();
+    matrix.postRotate(/* degrees= */ 90);
+    Bitmap rotatedBitmap =
+        Bitmap.createBitmap(
+            inputBitmap,
+            /* x= */ 0,
+            /* y= */ 0,
+            inputBitmap.getWidth(),
+            inputBitmap.getHeight(),
+            matrix,
+            /* filter= */ true);
+    BitmapOverlay bitmapOverlay1 = BitmapOverlay.createStaticBitmapOverlay(inputBitmap);
+    BitmapOverlay bitmapOverlay2 = BitmapOverlay.createStaticBitmapOverlay(rotatedBitmap);
+    videoFrameProcessorTestRunner =
+        getDefaultFrameProcessorTestRunnerBuilder(testId)
+            .setEffects(new OverlayEffect(ImmutableList.of(bitmapOverlay1, bitmapOverlay2)))
+            .setOutputColorInfo(colorInfo)
+            .setVideoAssetPath(INPUT_HLG10_MP4_ASSET_STRING)
+            .build();
+    Bitmap expectedBitmap = readBitmap(ULTRA_HDR_OVERLAY_HLG_PNG_ASSET_PATH);
+
+    videoFrameProcessorTestRunner.processFirstFrameAndEnd();
+    Bitmap actualBitmap = videoFrameProcessorTestRunner.getOutputBitmap();
+
+    // TODO(b/207848601): Switch to using proper tooling for testing against golden data.
+    float averagePixelAbsoluteDifference =
+        BitmapPixelTestUtil.getBitmapAveragePixelAbsoluteDifferenceFp16(
+            expectedBitmap, actualBitmap);
+    assertThat(averagePixelAbsoluteDifference)
+        .isAtMost(MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE_DIFFERENT_DEVICE_FP16);
+  }
+
+  @Test
+  public void ultraHdrBitmapOverlay_hdr10Input_matchesGoldenFile() throws Exception {
+    Context context = getApplicationContext();
+    Format format = MP4_ASSET_720P_4_SECOND_HDR10_FORMAT;
+    assumeDeviceSupportsUltraHdrEditing();
+    assumeDeviceSupportsHdrEditing(testId, format);
+    assumeFormatsSupported(context, testId, /* inputFormat= */ format, /* outputFormat= */ null);
+    ColorInfo colorInfo = checkNotNull(format.colorInfo);
+    Bitmap overlayBitmap = readBitmap(ULTRA_HDR_ASSET_PATH);
+    overlayBitmap =
+        Bitmap.createScaledBitmap(
+            overlayBitmap,
+            overlayBitmap.getWidth() / 8,
+            overlayBitmap.getHeight() / 8,
+            /* filter= */ true);
+    BitmapOverlay bitmapOverlay = BitmapOverlay.createStaticBitmapOverlay(overlayBitmap);
+    videoFrameProcessorTestRunner =
+        getDefaultFrameProcessorTestRunnerBuilder(testId)
+            .setEffects(new OverlayEffect(ImmutableList.of(bitmapOverlay)))
+            .setOutputColorInfo(colorInfo)
+            .setVideoAssetPath(INPUT_PQ_MP4_ASSET_STRING)
+            .build();
+    Bitmap expectedBitmap = readBitmap(ULTRA_HDR_OVERLAY_PQ_PNG_ASSET_PATH);
+
+    videoFrameProcessorTestRunner.processFirstFrameAndEnd();
+    Bitmap actualBitmap = videoFrameProcessorTestRunner.getOutputBitmap();
+
+    // TODO(b/207848601): Switch to using proper tooling for testing against golden data.
+    float averagePixelAbsoluteDifference =
+        BitmapPixelTestUtil.getBitmapAveragePixelAbsoluteDifferenceFp16(
+            expectedBitmap, actualBitmap);
+    assertThat(averagePixelAbsoluteDifference)
+        .isAtMost(MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE_DIFFERENT_DEVICE_FP16);
+  }
+
   @Test
   public void noEffects_hlg10Input_matchesGoldenFile() throws Exception {
     Context context = getApplicationContext();