Add HDR & Resolution Height settings to demo-composition

Added UI and logic implementation for HDR mode and Resolution Height to be used as settings for both previewing and exporting.

PiperOrigin-RevId: 684011852

demos/composition/src/main/java/androidx/media3/demo/composition/CompositionPreviewActivity.java

@@ -15,9 +15,16 @@
  */
 package androidx.media3.demo.composition;
 
+import static androidx.media3.transformer.Composition.HDR_MODE_EXPERIMENTAL_FORCE_INTERPRET_HDR_AS_SDR;
+import static androidx.media3.transformer.Composition.HDR_MODE_KEEP_HDR;
+import static androidx.media3.transformer.Composition.HDR_MODE_TONE_MAP_HDR_TO_SDR_USING_MEDIACODEC;
+import static androidx.media3.transformer.Composition.HDR_MODE_TONE_MAP_HDR_TO_SDR_USING_OPEN_GL;
+
 import android.app.Activity;
 import android.content.DialogInterface;
 import android.os.Bundle;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
 import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
@@ -33,6 +40,8 @@
 import androidx.media3.common.util.Clock;
 import androidx.media3.common.util.Log;
 import androidx.media3.common.util.Util;
+import androidx.media3.effect.LanczosResample;
+import androidx.media3.effect.Presentation;
 import androidx.media3.effect.RgbFilter;
 import androidx.media3.transformer.Composition;
 import androidx.media3.transformer.CompositionPlayer;
@@ -50,6 +59,7 @@
 import com.google.common.base.Stopwatch;
 import com.google.common.base.Ticker;
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
@@ -66,6 +76,17 @@ public final class CompositionPreviewActivity extends AppCompatActivity {
   private static final String TAG = "CompPreviewActivity";
   private static final String AUDIO_URI =
       "https://storage.googleapis.com/exoplayer-test-media-0/play.mp3";
+  private static final String SAME_AS_INPUT_OPTION = "same as input";
+  private static final ImmutableMap<String, @Composition.HdrMode Integer> HDR_MODE_DESCRIPTIONS =
+      new ImmutableMap.Builder<String, @Composition.HdrMode Integer>()
+          .put("Keep HDR", HDR_MODE_KEEP_HDR)
+          .put("MediaCodec tone-map HDR to SDR", HDR_MODE_TONE_MAP_HDR_TO_SDR_USING_MEDIACODEC)
+          .put("OpenGL tone-map HDR to SDR", HDR_MODE_TONE_MAP_HDR_TO_SDR_USING_OPEN_GL)
+          .put("Force Interpret HDR as SDR", HDR_MODE_EXPERIMENTAL_FORCE_INTERPRET_HDR_AS_SDR)
+          .build();
+  private static final ImmutableList<String> RESOLUTION_HEIGHTS =
+      ImmutableList.of(
+          SAME_AS_INPUT_OPTION, "144", "240", "360", "480", "720", "1080", "1440", "2160");
 
   private ArrayList<String> sequenceAssetTitles;
   private boolean[] selectedMediaItems;
@@ -103,6 +124,19 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
     backgroundAudioCheckBox.setOnCheckedChangeListener(
         (compoundButton, checked) -> includeBackgroundAudioTrack = checked);
 
+    ArrayAdapter<String> resolutionHeightAdapter =
+        new ArrayAdapter<>(/* context= */ this, R.layout.spinner_item);
+    resolutionHeightAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+    Spinner resolutionHeightSpinner = findViewById(R.id.resolution_height_spinner);
+    resolutionHeightSpinner.setAdapter(resolutionHeightAdapter);
+    resolutionHeightAdapter.addAll(RESOLUTION_HEIGHTS);
+
+    ArrayAdapter<String> hdrModeAdapter = new ArrayAdapter<>(this, R.layout.spinner_item);
+    hdrModeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+    Spinner hdrModeSpinner = findViewById(R.id.hdr_mode_spinner);
+    hdrModeSpinner.setAdapter(hdrModeAdapter);
+    hdrModeAdapter.addAll(HDR_MODE_DESCRIPTIONS.keySet());
+
     AppCompatCheckBox applyVideoEffectsCheckBox = findViewById(R.id.apply_video_effects_checkbox);
     applyVideoEffectsCheckBox.setOnCheckedChangeListener(
         ((compoundButton, checked) -> appliesVideoEffects = checked));
@@ -150,12 +184,19 @@ private Composition prepareComposition() {
     String[] presetUris = getResources().getStringArray(/* id= */ R.array.preset_uris);
     int[] presetDurationsUs = getResources().getIntArray(/* id= */ R.array.preset_durations);
     List<EditedMediaItem> mediaItems = new ArrayList<>();
-    ImmutableList<Effect> videoEffects =
-        appliesVideoEffects
-            ? ImmutableList.of(
-                MatrixTransformationFactory.createDizzyCropEffect(),
-                RgbFilter.createGrayscaleFilter())
-            : ImmutableList.of();
+    ImmutableList.Builder<Effect> videoEffectsBuilder = new ImmutableList.Builder<>();
+    if (appliesVideoEffects) {
+      videoEffectsBuilder.add(MatrixTransformationFactory.createDizzyCropEffect());
+      videoEffectsBuilder.add(RgbFilter.createGrayscaleFilter());
+    }
+    Spinner resolutionHeightSpinner = findViewById(R.id.resolution_height_spinner);
+    String selectedResolutionHeight = String.valueOf(resolutionHeightSpinner.getSelectedItem());
+    if (!SAME_AS_INPUT_OPTION.equals(selectedResolutionHeight)) {
+      int resolutionHeight = Integer.parseInt(selectedResolutionHeight);
+      videoEffectsBuilder.add(LanczosResample.scaleToFit(10000, resolutionHeight));
+      videoEffectsBuilder.add(Presentation.createForHeight(resolutionHeight));
+    }
+    ImmutableList<Effect> videoEffects = videoEffectsBuilder.build();
     // Preview requires all sequences to be the same duration, so calculate main sequence duration
     // and limit background sequence duration to match.
     long videoSequenceDurationUs = 0;
@@ -187,11 +228,15 @@ private Composition prepareComposition() {
     }
     SonicAudioProcessor sampleRateChanger = new SonicAudioProcessor();
     sampleRateChanger.setOutputSampleRateHz(8_000);
+    Spinner hdrModeSpinner = findViewById(R.id.hdr_mode_spinner);
+    int selectedHdrMode =
+        HDR_MODE_DESCRIPTIONS.get(String.valueOf(hdrModeSpinner.getSelectedItem()));
     return new Composition.Builder(/* sequences= */ compositionSequences)
         .setEffects(
             new Effects(
                 /* audioProcessors= */ ImmutableList.of(sampleRateChanger),
                 /* videoEffects= */ ImmutableList.of()))
+        .setHdrMode(selectedHdrMode)
         .build();
   }
 
@@ -238,7 +283,7 @@ private void selectPreset() {
     new AlertDialog.Builder(/* context= */ this)
         .setTitle(R.string.select_preset_title)
         .setMultiChoiceItems(presetDescriptions, selectedMediaItems, this::selectPresetInDialog)
-        .setPositiveButton(android.R.string.ok, /* listener= */ null)
+        .setPositiveButton(R.string.ok, /* listener= */ null)
         .setCancelable(false)
         .create()
         .show();

demos/composition/src/main/res/layout/composition_preview_activity.xml

@@ -111,7 +111,49 @@
     android:text="@string/add_background_audio"
     app:layout_constraintStart_toStartOf="parent"
     app:layout_constraintEnd_toEndOf="parent"
-    app:layout_constraintBottom_toTopOf="@id/preview_button" />
+    app:layout_constraintBottom_toTopOf="@id/resolution_height_setting" />
+
+  <LinearLayout
+    android:id="@+id/resolution_height_setting"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:gravity="center_vertical"
+    android:layout_marginBottom="8dp"
+    app:layout_constraintBottom_toTopOf="@id/hdr_mode_setting">
+    <TextView
+      android:layout_height="wrap_content"
+      android:layout_width="0dp"
+      android:layout_weight="1"
+      android:text="@string/output_video_resolution"/>
+    <Spinner
+      android:id="@+id/resolution_height_spinner"
+      android:layout_gravity="end|center_vertical"
+      android:gravity="end"
+      android:layout_height="wrap_content"
+      android:layout_width="wrap_content"/>
+  </LinearLayout>
+
+  <LinearLayout
+    android:id="@+id/hdr_mode_setting"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:gravity="center_vertical"
+    android:layout_marginBottom="12dp"
+    app:layout_constraintBottom_toTopOf="@id/preview_button">
+    <TextView
+      android:layout_height="wrap_content"
+      android:layout_width="0dp"
+      android:layout_weight="1"
+      android:text="@string/hdr_mode" />
+    <Spinner
+      android:id="@+id/hdr_mode_spinner"
+      android:layout_gravity="end|center_vertical"
+      android:gravity="end"
+      android:layout_height="wrap_content"
+      android:layout_width="wrap_content"/>
+  </LinearLayout>
 
   <androidx.appcompat.widget.AppCompatButton
     android:id="@+id/composition_export_button"

demos/composition/src/main/res/layout/spinner_item.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2024 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.
+-->
+<TextView
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  android:layout_width="wrap_content"
+  android:layout_height="32dp"
+  android:gravity="start|center_vertical"
+  android:paddingLeft="4dp"
+  android:paddingRight="4dp"
+  android:layout_marginLeft="4dp"
+  android:layout_marginRight="4dp"
+  android:textIsSelectable="false" />

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

@@ -26,4 +26,7 @@
   <string name="export_error" translatable="false">Export error</string>
   <string name="export_started" translatable="false">Export started</string>
   <string name="add_background_audio" translatable="false">Add background audio</string>
+  <string name="output_video_resolution" translatable="false">Output video resolution</string>
+  <string name="hdr_mode" translatable="false">HDR mode</string>
+  <string name="ok" translatable="false">OK</string>
 </resources>