diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveAudioTransformationTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveAudioTransformationTest.java
index 10939898ea..d9b15076d8 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveAudioTransformationTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveAudioTransformationTest.java
@@ -30,8 +30,7 @@ public class RemoveAudioTransformationTest {
   @Test
   public void removeAudioTransform() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
-    Transformer transformer =
-        new Transformer.Builder().setContext(context).setRemoveAudio(true).build();
+    Transformer transformer = new Transformer.Builder(context).setRemoveAudio(true).build();
     runTransformer(context, transformer, MP4_ASSET_URI_STRING, /* timeoutSeconds= */ 120);
   }
 }
diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveVideoTransformationTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveVideoTransformationTest.java
index 819ad30762..0a82a55965 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveVideoTransformationTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RemoveVideoTransformationTest.java
@@ -30,8 +30,7 @@ public class RemoveVideoTransformationTest {
   @Test
   public void removeVideoTransform() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
-    Transformer transformer =
-        new Transformer.Builder().setContext(context).setRemoveVideo(true).build();
+    Transformer transformer = new Transformer.Builder(context).setRemoveVideo(true).build();
     runTransformer(context, transformer, MP4_ASSET_URI_STRING, /* timeoutSeconds= */ 120);
   }
 }
diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RepeatedTranscodeTransformationTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RepeatedTranscodeTransformationTest.java
index 502c60c143..d8ff6c6689 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RepeatedTranscodeTransformationTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/RepeatedTranscodeTransformationTest.java
@@ -39,8 +39,7 @@ public final class RepeatedTranscodeTransformationTest {
   public void repeatedTranscode_givesConsistentLengthOutput() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setVideoMimeType(MimeTypes.VIDEO_H265)
             .setAudioMimeType(MimeTypes.AUDIO_AMR_NB)
             .build();
@@ -67,8 +66,7 @@ public final class RepeatedTranscodeTransformationTest {
   public void repeatedTranscodeNoAudio_givesConsistentLengthOutput() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setVideoMimeType(MimeTypes.VIDEO_H265)
             .setRemoveAudio(true)
             .build();
@@ -95,8 +93,7 @@ public final class RepeatedTranscodeTransformationTest {
   public void repeatedTranscodeNoVideo_givesConsistentLengthOutput() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
     Transformer transcodingTransformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setAudioMimeType(MimeTypes.AUDIO_AMR_NB)
             .setRemoveVideo(true)
             .build();
diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/SefTransformationTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/SefTransformationTest.java
index 8efe0b96db..7019b6de28 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/SefTransformationTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/SefTransformationTest.java
@@ -31,7 +31,7 @@ public class SefTransformationTest {
   public void sefTransform() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
     Transformer transformer =
-        new Transformer.Builder().setContext(context).setFlattenForSlowMotion(true).build();
+        new Transformer.Builder(context).setFlattenForSlowMotion(true).build();
     runTransformer(context, transformer, SEF_ASSET_URI_STRING, /* timeoutSeconds= */ 120);
   }
 }
diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformationTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformationTest.java
index 1dc9218ce3..e40f0e8ae6 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformationTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformationTest.java
@@ -30,7 +30,7 @@ public class TransformationTest {
   @Test
   public void transform() throws Exception {
     Context context = ApplicationProvider.getApplicationContext();
-    Transformer transformer = new Transformer.Builder().setContext(context).build();
+    Transformer transformer = new Transformer.Builder(context).build();
     runTransformer(context, transformer, MP4_ASSET_URI_STRING, /* timeoutSeconds= */ 120);
   }
 }
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
index b673d59d3b..e0d3456ba8 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
@@ -61,7 +61,7 @@ import java.nio.ByteBuffer;
     public boolean supportsOutputMimeType(String mimeType) {
       try {
         mimeTypeToMuxerOutputFormat(mimeType);
-      } catch (IllegalStateException e) {
+      } catch (IllegalArgumentException e) {
         return false;
       }
       return true;
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
index cf83efaa59..41886f7c43 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
@@ -18,7 +18,6 @@ package androidx.media3.transformer;
 
 import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Assertions.checkState;
-import static androidx.media3.common.util.Assertions.checkStateNotNull;
 import static androidx.media3.exoplayer.DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_AFTER_REBUFFER_MS;
 import static androidx.media3.exoplayer.DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_MS;
 import static androidx.media3.exoplayer.DefaultLoadControl.DEFAULT_MAX_BUFFER_MS;
@@ -92,6 +91,8 @@ public final class Transformer {
   public static final class Builder {
 
     // Mandatory field.
+    // TODO(huangdarwin): Update @MonotonicNonNull to final after deprecated {@link
+    // #setContext(Context)} is removed.
     private @MonotonicNonNull Context context;
 
     // Optional fields.
@@ -108,7 +109,12 @@ public final class Transformer {
     private Looper looper;
     private Clock clock;
 
-    /** Creates a builder with default values. */
+    /**
+     * Creates a builder with default values.
+     *
+     * @deprecated Use {@link #Builder(Context)} instead.
+     */
+    @Deprecated
     public Builder() {
       muxerFactory = new FrameworkMuxer.Factory();
       outputHeight = Transformation.NO_VALUE;
@@ -118,6 +124,22 @@ public final class Transformer {
       clock = Clock.DEFAULT;
     }
 
+    /**
+     * Creates a builder with default values.
+     *
+     * @param context The {@link Context}.
+     * @throws NullPointerException If the {@link Context} has not been provided.
+     */
+    public Builder(Context context) {
+      this.context = context.getApplicationContext();
+      muxerFactory = new FrameworkMuxer.Factory();
+      outputHeight = Transformation.NO_VALUE;
+      containerMimeType = MimeTypes.VIDEO_MP4;
+      listener = new Listener() {};
+      looper = Util.getCurrentOrMainLooper();
+      clock = Clock.DEFAULT;
+    }
+
     /** Creates a builder with the values of the provided {@link Transformer}. */
     private Builder(Transformer transformer) {
       this.context = transformer.context;
@@ -142,7 +164,9 @@ public final class Transformer {
      *
      * @param context The {@link Context}.
      * @return This builder.
+     * @deprecated Use {@link #Builder(Context)} instead.
      */
+    @Deprecated
     public Builder setContext(Context context) {
       this.context = context.getApplicationContext();
       return this;
@@ -150,8 +174,8 @@ public final class Transformer {
 
     /**
      * Sets the {@link MediaSourceFactory} to be used to retrieve the inputs to transform. The
-     * default value is a {@link DefaultMediaSourceFactory} built with the context provided in
-     * {@link #setContext(Context)}.
+     * default value is a {@link DefaultMediaSourceFactory} built with the context provided in the
+     * constructor.
      *
      * @param mediaSourceFactory A {@link MediaSourceFactory}.
      * @return This builder.
@@ -368,7 +392,7 @@ public final class Transformer {
     /**
      * Builds a {@link Transformer} instance.
      *
-     * @throws IllegalStateException If the {@link Context} has not been provided.
+     * @throws NullPointerException If the {@link Context} has not been provided.
      * @throws IllegalStateException If both audio and video have been removed (otherwise the output
      *     would not contain any samples).
      * @throws IllegalStateException If the muxer doesn't support the requested container MIME type.
@@ -376,7 +400,9 @@ public final class Transformer {
      * @throws IllegalStateException If the muxer doesn't support the requested video MIME type.
      */
     public Transformer build() {
-      checkStateNotNull(context);
+      // TODO(huangdarwin): Remove this checkNotNull after deprecated {@link #setContext(Context)}
+      // is removed.
+      checkNotNull(context);
       if (mediaSourceFactory == null) {
         DefaultExtractorsFactory defaultExtractorsFactory = new DefaultExtractorsFactory();
         if (flattenForSlowMotion) {
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerBuilderTest.java b/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerBuilderTest.java
index 7e19f2c250..4495e7d651 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerBuilderTest.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerBuilderTest.java
@@ -31,14 +31,16 @@ public class TransformerBuilderTest {
 
   @Test
   public void setOutputMimeType_unsupportedMimeType_throws() {
+    Context context = ApplicationProvider.getApplicationContext();
+
     assertThrows(
         IllegalStateException.class,
-        () -> new Transformer.Builder().setOutputMimeType(MimeTypes.VIDEO_FLV).build());
+        () -> new Transformer.Builder(context).setOutputMimeType(MimeTypes.VIDEO_UNKNOWN).build());
   }
 
   @Test
   public void build_withoutContext_throws() {
-    assertThrows(IllegalStateException.class, () -> new Transformer.Builder().build());
+    assertThrows(NullPointerException.class, () -> new Transformer.Builder().build());
   }
 
   @Test
@@ -47,11 +49,6 @@ public class TransformerBuilderTest {
 
     assertThrows(
         IllegalStateException.class,
-        () ->
-            new Transformer.Builder()
-                .setContext(context)
-                .setRemoveAudio(true)
-                .setRemoveVideo(true)
-                .build());
+        () -> new Transformer.Builder(context).setRemoveAudio(true).setRemoveVideo(true).build());
   }
 }
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerTest.java b/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerTest.java
index c12284f9f7..70cd7ad41d 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerTest.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/TransformerTest.java
@@ -92,8 +92,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_videoOnly_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -108,8 +107,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_audioOnly_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -124,8 +122,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_audioAndVideo_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -140,8 +137,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_withSubtitles_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -157,8 +153,7 @@ public final class TransformerTest {
   public void startTransformation_successiveTransformations_completesSuccessfully()
       throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -178,7 +173,7 @@ public final class TransformerTest {
 
   @Test
   public void startTransformation_concurrentTransformations_throwsError() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_VIDEO_ONLY);
 
     transformer.startTransformation(mediaItem, outputPath);
@@ -190,8 +185,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_removeAudio_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setRemoveAudio(true)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
@@ -208,8 +202,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_removeVideo_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setRemoveVideo(true)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
@@ -226,8 +219,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_flattenForSlowMotion_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setFlattenForSlowMotion(true)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
@@ -242,7 +234,7 @@ public final class TransformerTest {
 
   @Test
   public void startTransformation_withPlayerError_completesWithError() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri("asset:///non-existing-path.mp4");
 
     transformer.startTransformation(mediaItem, outputPath);
@@ -255,7 +247,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_withAllSampleFormatsUnsupported_completesWithError()
       throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_WITH_ALL_SAMPLE_FORMATS_UNSUPPORTED);
 
     transformer.startTransformation(mediaItem, outputPath);
@@ -267,8 +259,7 @@ public final class TransformerTest {
   @Test
   public void startTransformation_afterCancellation_completesSuccessfully() throws Exception {
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
             .build();
@@ -291,8 +282,7 @@ public final class TransformerTest {
     anotherThread.start();
     Looper looper = anotherThread.getLooper();
     Transformer transformer =
-        new Transformer.Builder()
-            .setContext(context)
+        new Transformer.Builder(context)
             .setLooper(looper)
             .setClock(clock)
             .setMuxerFactory(new TestMuxerFactory())
@@ -321,7 +311,7 @@ public final class TransformerTest {
 
   @Test
   public void startTransformation_fromWrongThread_throwsError() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_AUDIO_ONLY);
     HandlerThread anotherThread = new HandlerThread("AnotherThread");
     AtomicReference<IllegalStateException> illegalStateException = new AtomicReference<>();
@@ -348,7 +338,7 @@ public final class TransformerTest {
 
   @Test
   public void getProgress_knownDuration_returnsConsistentStates() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_VIDEO_ONLY);
     AtomicInteger previousProgressState =
         new AtomicInteger(PROGRESS_STATE_WAITING_FOR_AVAILABILITY);
@@ -394,7 +384,7 @@ public final class TransformerTest {
 
   @Test
   public void getProgress_knownDuration_givesIncreasingPercentages() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_VIDEO_ONLY);
     List<Integer> progresses = new ArrayList<>();
     Handler progressHandler =
@@ -429,7 +419,7 @@ public final class TransformerTest {
 
   @Test
   public void getProgress_noCurrentTransformation_returnsNoTransformation() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_VIDEO_ONLY);
 
     @Transformer.ProgressState int stateBeforeTransform = transformer.getProgress(progressHolder);
@@ -443,7 +433,7 @@ public final class TransformerTest {
 
   @Test
   public void getProgress_unknownDuration_returnsConsistentStates() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_UNKNOWN_DURATION);
     AtomicInteger previousProgressState =
         new AtomicInteger(PROGRESS_STATE_WAITING_FOR_AVAILABILITY);
@@ -486,7 +476,7 @@ public final class TransformerTest {
 
   @Test
   public void getProgress_fromWrongThread_throwsError() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     HandlerThread anotherThread = new HandlerThread("AnotherThread");
     AtomicReference<IllegalStateException> illegalStateException = new AtomicReference<>();
     CountDownLatch countDownLatch = new CountDownLatch(1);
@@ -510,7 +500,7 @@ public final class TransformerTest {
 
   @Test
   public void cancel_afterCompletion_doesNotThrow() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     MediaItem mediaItem = MediaItem.fromUri(URI_PREFIX + FILE_VIDEO_ONLY);
 
     transformer.startTransformation(mediaItem, outputPath);
@@ -520,7 +510,7 @@ public final class TransformerTest {
 
   @Test
   public void cancel_fromWrongThread_throwsError() throws Exception {
-    Transformer transformer = new Transformer.Builder().setContext(context).setClock(clock).build();
+    Transformer transformer = new Transformer.Builder(context).setClock(clock).build();
     HandlerThread anotherThread = new HandlerThread("AnotherThread");
     AtomicReference<IllegalStateException> illegalStateException = new AtomicReference<>();
     CountDownLatch countDownLatch = new CountDownLatch(1);