Only allow HEVC output MIME selection in demo for API>=24.

The muxer doesn't support HEVC below API 24. The is documented in
the TransformationRequest javadoc and the Transformer.Builder will
throw if HEVC is requested below API 24 so the option should not
be part of the demo for those devices.

#mse-bug-week

PiperOrigin-RevId: 429343805

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

@@ -33,6 +33,7 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.media3.common.MimeTypes;
+import androidx.media3.common.util.Util;
 import java.util.Arrays;
 import java.util.List;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
@@ -122,11 +123,10 @@ public final class ConfigurationActivity extends AppCompatActivity {
     videoMimeSpinner = findViewById(R.id.video_mime_spinner);
     videoMimeSpinner.setAdapter(videoMimeAdapter);
     videoMimeAdapter.addAll(
-        SAME_AS_INPUT_OPTION,
-        MimeTypes.VIDEO_H263,
-        MimeTypes.VIDEO_H264,
-        MimeTypes.VIDEO_H265,
-        MimeTypes.VIDEO_MP4V);
+        SAME_AS_INPUT_OPTION, MimeTypes.VIDEO_H263, MimeTypes.VIDEO_H264, MimeTypes.VIDEO_MP4V);
+    if (Util.SDK_INT >= 24) {
+      videoMimeAdapter.add(MimeTypes.VIDEO_H265);
+    }
 
     ArrayAdapter<String> resolutionHeightAdapter =
         new ArrayAdapter<>(/* context= */ this, R.layout.spinner_item);