diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 29d225bda92..e72169a16ee 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -63,8 +63,11 @@
         `Player.EVENT_STATIC_METADATA_CHANGED`. Use `Player.getMediaMetadata`,
         `Player.Listener.onMediaMetadataChanged` and
         `Player.EVENT_MEDIA_METADATA_CHANGED` for convenient access to
-        structured metadata, or access the raw static metadata directly from
-        the `TrackSelection#getFormat()`.
+        structured metadata, or access the raw static metadata directly from the
+        `TrackSelection#getFormat()`.
+*   RTSP:
+    *   Handle when additional spaces are in SDP's RTPMAP atrribute
+        ([#9379](https://github.com/google/ExoPlayer/issues/9379)).
 
 ### 2.15.0 (2021-08-10)
 
diff --git a/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/MediaDescription.java b/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/MediaDescription.java
index 0a7d87436c4..755a32f8a6b 100644
--- a/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/MediaDescription.java
+++ b/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/MediaDescription.java
@@ -43,11 +43,11 @@ public static final class RtpMapAttribute {
 
     /** Parses the RTPMAP attribute value (with the part "a=rtpmap:" removed). */
     public static RtpMapAttribute parse(String rtpmapString) throws ParserException {
-      String[] rtpmapInfo = Util.split(rtpmapString, " ");
+      String[] rtpmapInfo = Util.splitAtFirst(rtpmapString, " ");
       checkArgument(rtpmapInfo.length == 2);
       int payloadType = parseInt(rtpmapInfo[0]);
 
-      String[] mediaInfo = Util.split(rtpmapInfo[1], "/");
+      String[] mediaInfo = Util.split(rtpmapInfo[1].trim(), "/");
       checkArgument(mediaInfo.length >= 2);
       int clockRate = parseInt(mediaInfo[1]);
       int encodingParameters = C.INDEX_UNSET;
diff --git a/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/RtspMediaTrack.java b/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/RtspMediaTrack.java
index 2f6a3c3c01c..cdd8e0b820c 100644
--- a/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/RtspMediaTrack.java
+++ b/library/rtsp/src/main/java/com/google/android/exoplayer2/source/rtsp/RtspMediaTrack.java
@@ -18,7 +18,6 @@
 import static com.google.android.exoplayer2.source.rtsp.MediaDescription.MEDIA_TYPE_AUDIO;
 import static com.google.android.exoplayer2.source.rtsp.RtpPayloadFormat.getMimeTypeFromRtpMediaType;
 import static com.google.android.exoplayer2.source.rtsp.SessionDescription.ATTR_CONTROL;
-import static com.google.android.exoplayer2.source.rtsp.SessionDescription.ATTR_RTPMAP;
 import static com.google.android.exoplayer2.util.Assertions.checkArgument;
 import static com.google.android.exoplayer2.util.Assertions.checkNotNull;
 import static com.google.android.exoplayer2.util.NalUnitUtil.NAL_START_CODE;
@@ -95,13 +94,6 @@ public int hashCode() {
       formatBuilder.setAverageBitrate(mediaDescription.bitrate);
     }
 
-    // rtpmap is mandatory in an RTSP session with dynamic payload types (RFC2326 Section C.1.3).
-    checkArgument(mediaDescription.attributes.containsKey(ATTR_RTPMAP));
-    String rtpmapAttribute = castNonNull(mediaDescription.attributes.get(ATTR_RTPMAP));
-
-    // rtpmap string format: RFC2327 Page 22.
-    String[] rtpmap = Util.split(rtpmapAttribute, " ");
-    checkArgument(rtpmap.length == 2);
     int rtpPayloadType = mediaDescription.rtpMapAttribute.payloadType;
 
     String mimeType = getMimeTypeFromRtpMediaType(mediaDescription.rtpMapAttribute.mediaEncoding);
diff --git a/library/rtsp/src/test/java/com/google/android/exoplayer2/source/rtsp/SessionDescriptionTest.java b/library/rtsp/src/test/java/com/google/android/exoplayer2/source/rtsp/SessionDescriptionTest.java
index d71976148df..cd2f6c3266f 100644
--- a/library/rtsp/src/test/java/com/google/android/exoplayer2/source/rtsp/SessionDescriptionTest.java
+++ b/library/rtsp/src/test/java/com/google/android/exoplayer2/source/rtsp/SessionDescriptionTest.java
@@ -191,6 +191,25 @@ public void parse_sdpStringWithDuplicatedSessionAttribute_recordsTheMostRecentVa
     assertThat(sessionDescription.attributes).containsEntry(ATTR_CONTROL, "session1");
   }
 
+  @Test
+  public void parse_sdpStringWithExtraSpaceInRtpMapAttribute_succeeds() throws Exception {
+    String testMediaSdpInfo =
+        "v=0\r\n"
+            + "o=MNobody 2890844526 2890842807 IN IP4 192.0.2.46\r\n"
+            + "s=SDP Seminar\r\n"
+            + "t=0 0\r\n"
+            + "a=control:*\r\n"
+            + "m=audio 3456 RTP/AVP 0\r\n"
+            + "a=rtpmap:97 AC3/44100  \r\n";
+
+    SessionDescription sessionDescription = SessionDescriptionParser.parse(testMediaSdpInfo);
+    MediaDescription.RtpMapAttribute rtpMapAttribute =
+        sessionDescription.mediaDescriptionList.get(0).rtpMapAttribute;
+    assertThat(rtpMapAttribute.payloadType).isEqualTo(97);
+    assertThat(rtpMapAttribute.mediaEncoding).isEqualTo("AC3");
+    assertThat(rtpMapAttribute.clockRate).isEqualTo(44100);
+  }
+
   @Test
   public void buildMediaDescription_withInvalidRtpmapAttribute_throwsIllegalStateException() {
     assertThrows(