Add RGB Adjustments to transformer demo.

PiperOrigin-RevId: 476049125

demos/transformer/src/main/java/com/google/android/exoplayer2/transformerdemo/ConfigurationActivity.java

@@ -69,6 +69,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
   public static final String PERIODIC_VIGNETTE_OUTER_RADIUS = "periodic_vignette_outer_radius";
   public static final String COLOR_FILTER_SELECTION = "color_filter_selection";
   public static final String CONTRAST_VALUE = "contrast_value";
+  public static final String RGB_ADJUSTMENT_RED_SCALE = "rgb_adjustment_red_scale";
+  public static final String RGB_ADJUSTMENT_GREEN_SCALE = "rgb_adjustment_green_scale";
+  public static final String RGB_ADJUSTMENT_BLUE_SCALE = "rgb_adjustment_blue_scale";
   public static final int COLOR_FILTER_GRAYSCALE = 0;
   public static final int COLOR_FILTER_INVERTED = 1;
   public static final int COLOR_FILTER_SEPIA = 2;
@@ -106,6 +109,7 @@ public final class ConfigurationActivity extends AppCompatActivity {
     "Dizzy crop",
     "Edge detector (Media Pipe)",
     "Color filters",
+    "RGB Adjustments",
     "Contrast",
     "Periodic vignette",
     "3D spin",
@@ -113,8 +117,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
     "Zoom in start",
   };
   private static final int COLOR_FILTERS_INDEX = 2;
-  private static final int CONTRAST_INDEX = 3;
+  private static final int RGB_ADJUSTMENTS_INDEX = 3;
-  private static final int PERIODIC_VIGNETTE_INDEX = 4;
+  private static final int CONTRAST_INDEX = 4;
+  private static final int PERIODIC_VIGNETTE_INDEX = 5;
   private static final String SAME_AS_INPUT_OPTION = "same as input";
   private static final float HALF_DIAGONAL = 1f / (float) Math.sqrt(2);
 
@@ -139,6 +144,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
   private long trimStartMs;
   private long trimEndMs;
   private int colorFilterSelection;
+  private float rgbAdjustmentRedScale;
+  private float rgbAdjustmentGreenScale;
+  private float rgbAdjustmentBlueScale;
   private float contrastValue;
   private float periodicVignetteCenterX;
   private float periodicVignetteCenterY;
@@ -297,6 +305,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
     bundle.putBooleanArray(DEMO_EFFECTS_SELECTIONS, demoEffectsSelections);
     bundle.putInt(COLOR_FILTER_SELECTION, colorFilterSelection);
     bundle.putFloat(CONTRAST_VALUE, contrastValue);
+    bundle.putFloat(RGB_ADJUSTMENT_RED_SCALE, rgbAdjustmentRedScale);
+    bundle.putFloat(RGB_ADJUSTMENT_GREEN_SCALE, rgbAdjustmentGreenScale);
+    bundle.putFloat(RGB_ADJUSTMENT_BLUE_SCALE, rgbAdjustmentBlueScale);
     bundle.putFloat(PERIODIC_VIGNETTE_CENTER_X, periodicVignetteCenterX);
     bundle.putFloat(PERIODIC_VIGNETTE_CENTER_Y, periodicVignetteCenterY);
     bundle.putFloat(PERIODIC_VIGNETTE_INNER_RADIUS, periodicVignetteInnerRadius);
@@ -367,6 +378,9 @@ public final class ConfigurationActivity extends AppCompatActivity {
       case COLOR_FILTERS_INDEX:
         controlColorFiltersSettings();
         break;
+      case RGB_ADJUSTMENTS_INDEX:
+        controlRgbAdjustmentsScale();
+        break;
       case CONTRAST_INDEX:
         controlContrastSettings();
         break;
@@ -394,6 +408,27 @@ public final class ConfigurationActivity extends AppCompatActivity {
         .show();
   }
 
+  private void controlRgbAdjustmentsScale() {
+    View dialogView =
+        getLayoutInflater().inflate(R.layout.rgb_adjustment_options, /* root= */ null);
+    Slider redScaleSlider = checkNotNull(dialogView.findViewById(R.id.rgb_adjustment_red_scale));
+    Slider greenScaleSlider =
+        checkNotNull(dialogView.findViewById(R.id.rgb_adjustment_green_scale));
+    Slider blueScaleSlider = checkNotNull(dialogView.findViewById(R.id.rgb_adjustment_blue_scale));
+    new AlertDialog.Builder(/* context= */ this)
+        .setTitle(R.string.rgb_adjustment_options)
+        .setView(dialogView)
+        .setPositiveButton(
+            android.R.string.ok,
+            (DialogInterface dialogInterface, int i) -> {
+              rgbAdjustmentRedScale = redScaleSlider.getValue();
+              rgbAdjustmentGreenScale = greenScaleSlider.getValue();
+              rgbAdjustmentBlueScale = blueScaleSlider.getValue();
+            })
+        .create()
+        .show();
+  }
+
   private void controlContrastSettings() {
     View dialogView = getLayoutInflater().inflate(R.layout.contrast_options, /* root= */ null);
     Slider contrastSlider = checkNotNull(dialogView.findViewById(R.id.contrast_slider));

demos/transformer/src/main/java/com/google/android/exoplayer2/transformerdemo/TransformerActivity.java

@@ -40,6 +40,7 @@ import androidx.media3.common.Effect;
 import androidx.media3.effect.Contrast;
 import androidx.media3.effect.GlEffect;
 import androidx.media3.effect.GlTextureProcessor;
+import androidx.media3.effect.RgbAdjustment;
 import androidx.media3.effect.RgbFilter;
 import androidx.media3.effect.RgbMatrix;
 import com.google.android.exoplayer2.C;
@@ -336,9 +337,17 @@ public final class TransformerActivity extends AppCompatActivity {
           }
         }
         if (selectedEffects[3]) {
-          effects.add(new Contrast(bundle.getFloat(ConfigurationActivity.CONTRAST_VALUE)));
+          effects.add(
+              new RgbAdjustment.Builder()
+                  .setRedScale(bundle.getFloat(ConfigurationActivity.RGB_ADJUSTMENT_RED_SCALE))
+                  .setGreenScale(bundle.getFloat(ConfigurationActivity.RGB_ADJUSTMENT_GREEN_SCALE))
+                  .setBlueScale(bundle.getFloat(ConfigurationActivity.RGB_ADJUSTMENT_BLUE_SCALE))
+                  .build());
         }
         if (selectedEffects[4]) {
+          effects.add(new Contrast(bundle.getFloat(ConfigurationActivity.CONTRAST_VALUE)));
+        }
+        if (selectedEffects[5]) {
           effects.add(
               (GlEffect)
                   (Context context, boolean useHdr) ->
@@ -353,13 +362,13 @@ public final class TransformerActivity extends AppCompatActivity {
                               ConfigurationActivity.PERIODIC_VIGNETTE_OUTER_RADIUS),
                           bundle.getFloat(ConfigurationActivity.PERIODIC_VIGNETTE_OUTER_RADIUS)));
         }
-        if (selectedEffects[5]) {
+        if (selectedEffects[6]) {
           effects.add(MatrixTransformationFactory.createSpin3dEffect());
         }
-        if (selectedEffects[6]) {
+        if (selectedEffects[7]) {
           effects.add((GlEffect) BitmapOverlayProcessor::new);
         }
-        if (selectedEffects[7]) {
+        if (selectedEffects[8]) {
           effects.add(MatrixTransformationFactory.createZoomInTransition());
         }
         transformerBuilder.setVideoEffects(effects.build());

demos/transformer/src/main/res/layout/rgb_adjustment_options.xml

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2022 The Android Open Source Project
+  ~
+  ~ 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.
+  -->
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  xmlns:tools="http://schemas.android.com/tools"
+  android:layout_width="fill_parent"
+  android:layout_height="fill_parent"
+  tools:context=".ConfigurationActivity">
+
+  <TableLayout
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:stretchColumns="1"
+    android:layout_marginTop="32dp"
+    android:measureWithLargestChild="true"
+    android:paddingLeft="24dp"
+    android:paddingRight="12dp"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent"
+    app:layout_constraintBottom_toBottomOf="parent">
+    <TableRow
+      android:layout_weight="1"
+      android:gravity="center_vertical" >
+      <TextView
+        android:text="@string/rgb_adjustment_scale_red" />
+      <com.google.android.material.slider.Slider
+        android:id="@+id/rgb_adjustment_red_scale"
+        android:valueFrom="0"
+        android:value="1"
+        android:valueTo="2"
+        android:layout_gravity="right"
+        app:labelBehavior="gone"/>
+    </TableRow>
+    <TableRow
+      android:layout_weight="1"
+      android:gravity="center_vertical" >
+      <TextView
+        android:text="@string/rgb_adjustment_scale_green" />
+      <com.google.android.material.slider.Slider
+        android:id="@+id/rgb_adjustment_green_scale"
+        android:valueFrom="0"
+        android:value="1"
+        android:valueTo="2"
+        android:layout_gravity="right"
+        app:labelBehavior="gone"/>
+    </TableRow>
+    <TableRow
+      android:layout_weight="1"
+      android:gravity="center_vertical" >
+      <TextView
+        android:text="@string/rgb_adjustment_scale_blue" />
+      <com.google.android.material.slider.Slider
+        android:id="@+id/rgb_adjustment_blue_scale"
+        android:valueFrom="0"
+        android:value="1"
+        android:valueTo="2"
+        android:layout_gravity="right"
+        app:labelBehavior="gone"/>
+    </TableRow>
+  </TableLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

demos/transformer/src/main/res/values/strings.xml

@@ -48,6 +48,10 @@
     <item>Sepia</item>
   </string-array>
   <string name="contrast_value" translatable="false">Contrast value</string>
+  <string name="rgb_adjustment_options" translatable="false">Scale RGB Channels individually</string>
+  <string name="rgb_adjustment_scale_red" translatable="false">Scale Red</string>
+  <string name="rgb_adjustment_scale_green" translatable="false">Scale Green</string>
+  <string name="rgb_adjustment_scale_blue" translatable="false">Scale Blue</string>
   <string name="center_x">Center X</string>
   <string name="center_y">Center Y</string>
   <string name="radius_range">Radius range</string>