diff --git a/library/core/src/main/java/com/google/android/exoplayer2/util/Util.java b/library/core/src/main/java/com/google/android/exoplayer2/util/Util.java
index 519919f129c..5d93f413d51 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/util/Util.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/util/Util.java
@@ -900,8 +900,7 @@ public static int inferContentType(String fileName) {
       return C.TYPE_DASH;
     } else if (fileName.endsWith(".m3u8")) {
       return C.TYPE_HLS;
-    } else if (fileName.endsWith(".ism") || fileName.endsWith(".isml")
-        || fileName.endsWith(".ism/manifest") || fileName.endsWith(".isml/manifest")) {
+    } else if (fileName.matches(".*\\.ism(l)?(/manifest(\\(.+\\))?)?")) {
       return C.TYPE_SS;
     } else {
       return C.TYPE_OTHER;
diff --git a/library/core/src/test/java/com/google/android/exoplayer2/util/UtilTest.java b/library/core/src/test/java/com/google/android/exoplayer2/util/UtilTest.java
index 70caff9bf15..1afe3804835 100644
--- a/library/core/src/test/java/com/google/android/exoplayer2/util/UtilTest.java
+++ b/library/core/src/test/java/com/google/android/exoplayer2/util/UtilTest.java
@@ -23,6 +23,7 @@
 import static com.google.android.exoplayer2.util.Util.unescapeFileName;
 import static com.google.common.truth.Truth.assertThat;
 
+import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.testutil.TestUtil;
 import java.util.ArrayList;
 import java.util.List;
@@ -39,6 +40,18 @@
 @Config(sdk = Config.TARGET_SDK, manifest = Config.NONE)
 public class UtilTest {
 
+  @Test
+  public void testInferContentType() {
+    assertThat(Util.inferContentType("http://a.b/c.ism")).isEqualTo(C.TYPE_SS);
+    assertThat(Util.inferContentType("http://a.b/c.isml")).isEqualTo(C.TYPE_SS);
+    assertThat(Util.inferContentType("http://a.b/c.ism/Manifest")).isEqualTo(C.TYPE_SS);
+    assertThat(Util.inferContentType("http://a.b/c.isml/manifest")).isEqualTo(C.TYPE_SS);
+    assertThat(Util.inferContentType("http://a.b/c.isml/manifest(filter=x)")).isEqualTo(C.TYPE_SS);
+
+    assertThat(Util.inferContentType("http://a.b/c.ism/prefix-manifest")).isEqualTo(C.TYPE_OTHER);
+    assertThat(Util.inferContentType("http://a.b/c.ism/manifest-suffix")).isEqualTo(C.TYPE_OTHER);
+  }
+
   @Test
   public void testArrayBinarySearchFloor() {
     long[] values = new long[0];
diff --git a/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java b/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java
index 885d5bd2273..236bee83ab8 100644
--- a/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java
+++ b/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java
@@ -193,8 +193,8 @@ private SsMediaSource(SsManifest manifest, Uri manifestUri,
     Assertions.checkState(manifest == null || !manifest.isLive);
     this.manifest = manifest;
     this.manifestUri = manifestUri == null ? null
-        : Util.toLowerInvariant(manifestUri.getLastPathSegment()).equals("manifest") ? manifestUri
-            : Uri.withAppendedPath(manifestUri, "Manifest");
+        : Util.toLowerInvariant(manifestUri.getLastPathSegment()).matches("manifest(\\(.+\\))?")
+            ? manifestUri : Uri.withAppendedPath(manifestUri, "Manifest");
     this.manifestDataSourceFactory = manifestDataSourceFactory;
     this.manifestParser = manifestParser;
     this.chunkSourceFactory = chunkSourceFactory;