Change TransformerInternal durationMs to durationUs.

Follow-up CLs will use this duration for silent audio.

PiperOrigin-RevId: 491670359

libraries/transformer/src/main/java/androidx/media3/transformer/ExoPlayerAssetLoader.java

@@ -32,7 +32,6 @@ import androidx.media3.common.Player;
 import androidx.media3.common.Timeline;
 import androidx.media3.common.Tracks;
 import androidx.media3.common.util.Clock;
-import androidx.media3.common.util.Util;
 import androidx.media3.exoplayer.DefaultLoadControl;
 import androidx.media3.exoplayer.ExoPlayer;
 import androidx.media3.exoplayer.Renderer;
@@ -48,7 +47,7 @@ import androidx.media3.exoplayer.video.VideoRendererEventListener;
 
   public interface Listener {
 
-    void onDurationMs(long durationMs);
+    void onDurationUs(long durationUs);
 
     void onTrackRegistered();
 
@@ -174,7 +173,7 @@ import androidx.media3.exoplayer.video.VideoRendererEventListener;
       Timeline.Window window = new Timeline.Window();
       timeline.getWindow(/* windowIndex= */ 0, window);
       if (!window.isPlaceholder) {
-        listener.onDurationMs(Util.usToMs(window.durationUs));
+        listener.onDurationUs(window.durationUs);
         hasSentDuration = true;
       }
     }

libraries/transformer/src/main/java/androidx/media3/transformer/TransformerInternal.java

@@ -116,7 +116,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
   private boolean isDrainingPipelines;
   private @Transformer.ProgressState int progressState;
   private long progressPositionMs;
-  private long durationMs;
+  private long durationUs;
   private @MonotonicNonNull RuntimeException cancelException;
 
   private volatile boolean released;
@@ -189,7 +189,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
   public @Transformer.ProgressState int getProgress(ProgressHolder progressHolder) {
     if (progressState == PROGRESS_STATE_AVAILABLE) {
-      progressHolder.progress = min((int) (progressPositionMs * 100 / durationMs), 99);
+      progressHolder.progress = min((int) (progressPositionMs * 100 / Util.usToMs(durationUs)), 99);
     }
     return progressState;
   }
@@ -371,17 +371,17 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
     // ExoPlayerAssetLoader.Listener implementation.
 
     @Override
-    public void onDurationMs(long durationMs) {
+    public void onDurationUs(long durationUs) {
       applicationHandler.post(
           () -> {
             // Make progress permanently unavailable if the duration is unknown, so that it doesn't
             // jump to a high value at the end of the transformation if the duration is set once the
             // media is entirely loaded.
             progressState =
-                durationMs <= 0 || durationMs == C.TIME_UNSET
+                durationUs <= 0 || durationUs == C.TIME_UNSET
                     ? PROGRESS_STATE_UNAVAILABLE
                     : PROGRESS_STATE_AVAILABLE;
-            TransformerInternal.this.durationMs = durationMs;
+            TransformerInternal.this.durationUs = durationUs;
           });
     }