Add option to disable debug preview.

This is useful for testing Transformer in the same way as it is used
in tests and to see only the real transformation time.

PiperOrigin-RevId: 456058466

Author: hmsch

demos/transformer/src/main/java/androidx/media3/demo/transformer/ConfigurationActivity.java

@@ -59,6 +59,7 @@ public final class ConfigurationActivity extends AppCompatActivity {
   public static final String TRIM_START_MS = "trim_start_ms";
   public static final String TRIM_END_MS = "trim_end_ms";
   public static final String ENABLE_FALLBACK = "enable_fallback";
+  public static final String ENABLE_DEBUG_PREVIEW = "enable_debug_preview";
   public static final String ENABLE_REQUEST_SDR_TONE_MAPPING = "enable_request_sdr_tone_mapping";
   public static final String ENABLE_HDR_EDITING = "enable_hdr_editing";
   public static final String DEMO_EFFECTS_SELECTIONS = "demo_effects_selections";
@@ -120,6 +121,7 @@ public final class ConfigurationActivity extends AppCompatActivity {
   private @MonotonicNonNull Spinner rotateSpinner;
   private @MonotonicNonNull CheckBox trimCheckBox;
   private @MonotonicNonNull CheckBox enableFallbackCheckBox;
+  private @MonotonicNonNull CheckBox enableDebugPreviewCheckBox;
   private @MonotonicNonNull CheckBox enableRequestSdrToneMappingCheckBox;
   private @MonotonicNonNull CheckBox enableHdrEditingCheckBox;
   private @MonotonicNonNull Button selectDemoEffectsButton;
@@ -200,6 +202,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
     trimEndMs = C.TIME_UNSET;
 
     enableFallbackCheckBox = findViewById(R.id.enable_fallback_checkbox);
+    enableDebugPreviewCheckBox = findViewById(R.id.enable_debug_preview_checkbox);
     enableRequestSdrToneMappingCheckBox = findViewById(R.id.request_sdr_tone_mapping_checkbox);
     enableRequestSdrToneMappingCheckBox.setEnabled(isRequestSdrToneMappingSupported());
     findViewById(R.id.request_sdr_tone_mapping).setEnabled(isRequestSdrToneMappingSupported());
@@ -237,6 +240,7 @@ protected void onNewIntent(Intent intent) {
     "rotateSpinner",
     "trimCheckBox",
     "enableFallbackCheckBox",
+    "enableDebugPreviewCheckBox",
     "enableRequestSdrToneMappingCheckBox",
     "enableHdrEditingCheckBox",
     "demoEffectsSelections"
@@ -275,6 +279,7 @@ private void startTransformation(View view) {
       bundle.putLong(TRIM_END_MS, trimEndMs);
     }
     bundle.putBoolean(ENABLE_FALLBACK, enableFallbackCheckBox.isChecked());
+    bundle.putBoolean(ENABLE_DEBUG_PREVIEW, enableDebugPreviewCheckBox.isChecked());
     bundle.putBoolean(
         ENABLE_REQUEST_SDR_TONE_MAPPING, enableRequestSdrToneMappingCheckBox.isChecked());
     bundle.putBoolean(ENABLE_HDR_EDITING, enableHdrEditingCheckBox.isChecked());
@@ -377,6 +382,7 @@ private void selectDemoEffect(DialogInterface dialog, int which, boolean isCheck
     "resolutionHeightSpinner",
     "scaleSpinner",
     "rotateSpinner",
+    "enableDebugPreviewCheckBox",
     "enableRequestSdrToneMappingCheckBox",
     "enableHdrEditingCheckBox",
     "selectDemoEffectsButton"
@@ -397,6 +403,7 @@ private void onRemoveAudio(View view) {
     "resolutionHeightSpinner",
     "scaleSpinner",
     "rotateSpinner",
+    "enableDebugPreviewCheckBox",
     "enableRequestSdrToneMappingCheckBox",
     "enableHdrEditingCheckBox",
     "selectDemoEffectsButton"
@@ -416,6 +423,7 @@ private void onRemoveVideo(View view) {
     "resolutionHeightSpinner",
     "scaleSpinner",
     "rotateSpinner",
+    "enableDebugPreviewCheckBox",
     "enableRequestSdrToneMappingCheckBox",
     "enableHdrEditingCheckBox",
     "selectDemoEffectsButton"
@@ -426,6 +434,7 @@ private void enableTrackSpecificOptions(boolean isAudioEnabled, boolean isVideoE
     resolutionHeightSpinner.setEnabled(isVideoEnabled);
     scaleSpinner.setEnabled(isVideoEnabled);
     rotateSpinner.setEnabled(isVideoEnabled);
+    enableDebugPreviewCheckBox.setEnabled(isVideoEnabled);
     enableRequestSdrToneMappingCheckBox.setEnabled(
         isRequestSdrToneMappingSupported() && isVideoEnabled);
     enableHdrEditingCheckBox.setEnabled(isVideoEnabled);

demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java

@@ -319,6 +319,10 @@ private Transformer createTransformer(@Nullable Bundle bundle, String filePath)
         }
         transformerBuilder.setVideoFrameEffects(effects.build());
       }
+
+      if (bundle.getBoolean(ConfigurationActivity.ENABLE_DEBUG_PREVIEW)) {
+        transformerBuilder.setDebugViewProvider(new DemoDebugViewProvider());
+      }
     }
     return transformerBuilder
         .addListener(
@@ -335,7 +339,6 @@ public void onTransformationError(
                 TransformerActivity.this.onTransformationError(exception);
               }
             })
-        .setDebugViewProvider(new DemoDebugViewProvider())
         .build();
   }
 

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

@@ -179,6 +179,16 @@
           android:layout_gravity="right"
           android:checked="true"/>
       </TableRow>
+      <TableRow
+        android:layout_weight="1"
+        android:gravity="center_vertical" >
+        <TextView
+          android:text="@string/enable_debug_preview" />
+        <CheckBox
+          android:id="@+id/enable_debug_preview_checkbox"
+          android:layout_gravity="right"
+          android:checked="true"/>
+      </TableRow>
       <TableRow
         android:layout_weight="1"
         android:gravity="center_vertical" >

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

@@ -27,6 +27,7 @@
   <string name="scale" translatable="false">Scale video</string>
   <string name="rotate" translatable="false">Rotate video (degrees)</string>
   <string name="enable_fallback" translatable="false">Enable fallback</string>
+  <string name="enable_debug_preview" translatable="false">Enable debug preview</string>
   <string name="trim" translatable="false">Trim</string>
   <string name="request_sdr_tone_mapping" translatable="false">Request SDR tone-mapping (API 31+)</string>
   <string name="hdr_editing" translatable="false">[Experimental] HDR editing</string>