Prevent seeking when ICY metadata is present.

Any seek map with non-zero offsets breaks playback with ICY metadata as
the metadata is no longer read from the correct position.

Issue:#5658
PiperOrigin-RevId: 239605839

RELEASENOTES.md

@@ -78,6 +78,8 @@
   `ExtractorsFactory` instances must now be passed via the
   `ExtractorsFactory` instances must now be passed via the
   `ProgressiveMediaSource.Factory` constructor, and `setExtractorsFactory` is
   `ProgressiveMediaSource.Factory` constructor, and `setExtractorsFactory` is
   deprecated.
   deprecated.
+* Prevent seeking when ICY metadata is present to prevent playback problems
+  ([#5658](https://github.com/google/ExoPlayer/issues/5658)).
 
 
 ### 2.9.6 ###
 ### 2.9.6 ###
 
 

library/core/src/main/java/com/google/android/exoplayer2/source/ProgressiveMediaPeriod.java

@@ -31,6 +31,7 @@ import com.google.android.exoplayer2.extractor.ExtractorOutput;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap.SeekPoints;
 import com.google.android.exoplayer2.extractor.SeekMap.SeekPoints;
+import com.google.android.exoplayer2.extractor.SeekMap.Unseekable;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.icy.IcyHeaders;
 import com.google.android.exoplayer2.metadata.icy.IcyHeaders;
@@ -626,7 +627,7 @@ import org.checkerframework.checker.nullness.compatqual.NullableType;
 
 
   @Override
   @Override
   public void seekMap(SeekMap seekMap) {
   public void seekMap(SeekMap seekMap) {
-    this.seekMap = seekMap;
+    this.seekMap = icyHeaders == null ? seekMap : new Unseekable(/* durationUs */ C.TIME_UNSET);
     handler.post(maybeFinishPrepareRunnable);
     handler.post(maybeFinishPrepareRunnable);
   }
   }