diff --git a/libraries/effect/src/main/java/androidx/media3/effect/BitmapTextureManager.java b/libraries/effect/src/main/java/androidx/media3/effect/BitmapTextureManager.java
index d6f8f27d50..4b4849ea77 100644
--- a/libraries/effect/src/main/java/androidx/media3/effect/BitmapTextureManager.java
+++ b/libraries/effect/src/main/java/androidx/media3/effect/BitmapTextureManager.java
@@ -171,7 +171,9 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
     DebugTraceUtil.logEvent(
         DebugTraceUtil.EVENT_VFP_QUEUE_BITMAP,
         currentPresentationTimeUs,
-        /* extra= */ currentFrameInfo.width + "x" + currentFrameInfo.height);
+        /* extraFormat= */ "%dx%d",
+        /* extraArgs...= */ currentFrameInfo.width,
+        currentFrameInfo.height);
 
     if (!currentBitmapInfo.inStreamOffsetsUs.hasNext()) {
       isNextFrameInTexture = false;
diff --git a/libraries/effect/src/main/java/androidx/media3/effect/DebugTraceUtil.java b/libraries/effect/src/main/java/androidx/media3/effect/DebugTraceUtil.java
index b8ffa1cddf..6172241682 100644
--- a/libraries/effect/src/main/java/androidx/media3/effect/DebugTraceUtil.java
+++ b/libraries/effect/src/main/java/androidx/media3/effect/DebugTraceUtil.java
@@ -26,6 +26,7 @@ import androidx.annotation.StringDef;
 import androidx.media3.common.C;
 import androidx.media3.common.util.SystemClock;
 import androidx.media3.common.util.UnstableApi;
+import androidx.media3.common.util.Util;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
 import java.io.IOException;
@@ -41,9 +42,17 @@ import java.util.List;
 import java.util.Map;
 import java.util.Queue;
 
-/** A debugging tracing utility. */
+/** A debugging tracing utility. Debug logging is disabled at compile time by default. */
 @UnstableApi
 public final class DebugTraceUtil {
+
+  /**
+   * Whether to store tracing events for debug logging. Should be set to {@code true} for testing
+   * and debugging purposes only, before running transformer.
+   */
+  @SuppressWarnings("NonFinalStaticField") // Only for debugging/testing.
+  public static boolean enableTracing = false;
+
   /** Events logged by {@link #logEvent}. */
   @Retention(RetentionPolicy.SOURCE)
   @StringDef({
@@ -153,25 +162,35 @@ public final class DebugTraceUtil {
   }
 
   /**
-   * Logs a new event.
+   * Logs a new event, if debug logging is enabled.
    *
    * @param eventName The {@linkplain DebugTraceEvent event name} to log.
    * @param presentationTimeUs The current presentation time of the media. Use {@link C#TIME_UNSET}
    *     if unknown, {@link C#TIME_END_OF_SOURCE} if EOS.
-   * @param extra Optional extra info about the event being logged.
+   * @param extraFormat Format string for optional extra information. See {@link
+   *     Util#formatInvariant(String, Object...)}.
+   * @param extraArgs Arguments for optional extra information.
    */
   public static synchronized void logEvent(
-      @DebugTraceEvent String eventName, long presentationTimeUs, @Nullable String extra) {
+      @DebugTraceEvent String eventName,
+      long presentationTimeUs,
+      @Nullable String extraFormat,
+      Object... extraArgs) {
+    if (!enableTracing) {
+      return;
+    }
     long eventTimeMs = SystemClock.DEFAULT.elapsedRealtime() - startTimeMs;
     if (!events.containsKey(eventName)) {
       events.put(eventName, new EventLogger());
     }
     EventLogger logger = events.get(eventName);
+    @Nullable
+    String extra = extraFormat != null ? Util.formatInvariant(extraFormat, extraArgs) : null;
     logger.addLog(new EventLog(presentationTimeUs, eventTimeMs, extra));
   }
 
   /**
-   * Logs a new event.
+   * Logs a new event, if debug logging is enabled.
    *
    * @param eventName The {@linkplain DebugTraceEvent event name} to log.
    * @param presentationTimeUs The current presentation time of the media. Use {@link C#TIME_UNSET}
@@ -179,14 +198,17 @@ public final class DebugTraceUtil {
    */
   public static synchronized void logEvent(
       @DebugTraceEvent String eventName, long presentationTimeUs) {
-    logEvent(eventName, presentationTimeUs, /* extra= */ null);
+    logEvent(eventName, presentationTimeUs, /* extraFormat= */ null);
   }
 
   /**
-   * Generate a summary of the traced events, containing the total number of times an event happened
+   * Generate a summary of the logged events, containing the total number of times an event happened
    * and the detailed log on the first and last {@link #MAX_FIRST_LAST_LOGS} times.
    */
   public static synchronized String generateTraceSummary() {
+    if (!enableTracing) {
+      return "Tracing disabled";
+    }
     StringBuilder stringBuilder = new StringBuilder().append('{');
     for (int i = 0; i < EVENT_TYPES.size(); i++) {
       String eventType = EVENT_TYPES.get(i);
@@ -203,8 +225,12 @@ public final class DebugTraceUtil {
     return stringBuilder.toString();
   }
 
-  /** Dumps all the stored events to a tsv file. */
+  /** Dumps all the logged events to a tsv file. */
   public static synchronized void dumpTsv(Writer writer) throws IOException {
+    if (!enableTracing) {
+      writer.write("Tracing disabled");
+      return;
+    }
     writer.write("event\ttimestamp\tpresentation\textra\n");
     for (Map.Entry<String, EventLogger> entry : events.entrySet()) {
       ImmutableList<EventLog> eventLogs = entry.getValue().getLogs();
diff --git a/libraries/effect/src/main/java/androidx/media3/effect/DefaultVideoFrameProcessor.java b/libraries/effect/src/main/java/androidx/media3/effect/DefaultVideoFrameProcessor.java
index da0b9bd814..c129d95647 100644
--- a/libraries/effect/src/main/java/androidx/media3/effect/DefaultVideoFrameProcessor.java
+++ b/libraries/effect/src/main/java/androidx/media3/effect/DefaultVideoFrameProcessor.java
@@ -459,9 +459,10 @@ public final class DefaultVideoFrameProcessor implements VideoFrameProcessor {
     logEvent(
         EVENT_VFP_REGISTER_NEW_INPUT_STREAM,
         /* presentationTimeUs= */ frameInfo.offsetToAddUs,
-        /* extra= */ Util.formatInvariant(
-            "InputType %s - %dx%d",
-            getInputTypeString(inputType), frameInfo.width, frameInfo.height));
+        /* extraFormat= */ "InputType %s - %dx%d",
+        /* extraArgs...= */ getInputTypeString(inputType),
+        frameInfo.width,
+        frameInfo.height);
     nextInputFrameInfo = adjustForPixelWidthHeightRatio(frameInfo);
 
     try {
diff --git a/libraries/effect/src/main/java/androidx/media3/effect/TexIdTextureManager.java b/libraries/effect/src/main/java/androidx/media3/effect/TexIdTextureManager.java
index f2fd383d41..f3b926a3a5 100644
--- a/libraries/effect/src/main/java/androidx/media3/effect/TexIdTextureManager.java
+++ b/libraries/effect/src/main/java/androidx/media3/effect/TexIdTextureManager.java
@@ -84,7 +84,9 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
           DebugTraceUtil.logEvent(
               DebugTraceUtil.EVENT_VFP_QUEUE_TEXTURE,
               presentationTimeUs,
-              /* extra= */ frameInfo.width + "x" + frameInfo.height);
+              /* extraFormat= */ "%dx%d",
+              /* extraArgs...= */ frameInfo.width,
+              frameInfo.height);
         });
   }
 
diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerAndroidTestRunner.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerAndroidTestRunner.java
index 36f9fea425..30f9fccd5a 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerAndroidTestRunner.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerAndroidTestRunner.java
@@ -316,6 +316,8 @@ public class TransformerAndroidTestRunner {
     CountDownLatch countDownLatch = new CountDownLatch(1);
     long startTimeMs = SystemClock.DEFAULT.elapsedRealtime();
 
+    DebugTraceUtil.enableTracing = true;
+
     Transformer testTransformer =
         transformer
             .buildUpon()
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/ExoAssetLoaderVideoRenderer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/ExoAssetLoaderVideoRenderer.java
index 2871a7cf17..f8e3689b88 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/ExoAssetLoaderVideoRenderer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/ExoAssetLoaderVideoRenderer.java
@@ -72,7 +72,10 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
   @Override
   protected void onInputFormatRead(Format inputFormat) {
     DebugTraceUtil.logEvent(
-        DebugTraceUtil.EVENT_VIDEO_INPUT_FORMAT, C.TIME_UNSET, inputFormat.toString());
+        DebugTraceUtil.EVENT_VIDEO_INPUT_FORMAT,
+        C.TIME_UNSET,
+        /* extraFormat= */ "%s",
+        /* extraArgs...= */ inputFormat);
     if (flattenForSlowMotion) {
       sefVideoSlowMotionFlattener = new SefSlowMotionFlattener(inputFormat);
     }
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/MuxerWrapper.java b/libraries/transformer/src/main/java/androidx/media3/transformer/MuxerWrapper.java
index 5ff7bcb505..14c51eef40 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/MuxerWrapper.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/MuxerWrapper.java
@@ -311,12 +311,14 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
       DebugTraceUtil.logEvent(
           DebugTraceUtil.EVENT_MUXER_CAN_WRITE_SAMPLE_VIDEO,
           presentationTimeUs,
-          String.valueOf(canWriteSample));
+          /* extraFormat= */ "%s",
+          /* extraArgs...= */ canWriteSample);
     } else if (trackType == C.TRACK_TYPE_AUDIO) {
       DebugTraceUtil.logEvent(
           DebugTraceUtil.EVENT_MUXER_CAN_WRITE_SAMPLE_AUDIO,
           presentationTimeUs,
-          String.valueOf(canWriteSample));
+          /* extraFormat= */ "%s",
+          /* extraArgs...= */ canWriteSample);
     }
     if (!canWriteSample) {
       return false;