Disable delta updates until merging bug is fixed.

The delta updates loose information about previous init segments.
Until this is properly fixed, we can avoid the problem by not
using delta updates.

Issue: #5011
PiperOrigin-RevId: 348023895

library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/DefaultHlsPlaylistTracker.java

@@ -774,8 +774,9 @@ public final class DefaultHlsPlaylistTracker
         }
         }
       }
       }
       if (playlistSnapshot.serverControl.skipUntilUs != C.TIME_UNSET) {
       if (playlistSnapshot.serverControl.skipUntilUs != C.TIME_UNSET) {
-        uriBuilder.appendQueryParameter(
-            SKIP_PARAM, playlistSnapshot.serverControl.canSkipDateRanges ? "v2" : "YES");
+        // TODO: Fix skipped segment merging before re-enabling.
+        // uriBuilder.appendQueryParameter(
+        //    SKIP_PARAM, playlistSnapshot.serverControl.canSkipDateRanges ? "v2" : "YES");
       }
       }
       return uriBuilder.build();
       return uriBuilder.build();
     }
     }

library/hls/src/test/java/com/google/android/exoplayer2/source/hls/playlist/DefaultHlsPlaylistTrackerTest.java

@@ -37,6 +37,7 @@ import okhttp3.mockwebserver.MockWebServer;
 import okio.Buffer;
 import okio.Buffer;
 import org.junit.After;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runner.RunWith;
 
 
@@ -134,6 +135,7 @@ public class DefaultHlsPlaylistTrackerTest {
     assertThat(secondFullPlaylist.segments).containsNoneIn(firstFullPlaylist.segments);
     assertThat(secondFullPlaylist.segments).containsNoneIn(firstFullPlaylist.segments);
   }
   }
 
 
+  @Ignore // Test disabled because playlist delta updates are temporarily disabled.
   @Test
   @Test
   public void start_playlistCanSkip_requestsDeltaUpdateAndExpandsSkippedSegments()
   public void start_playlistCanSkip_requestsDeltaUpdateAndExpandsSkippedSegments()
       throws IOException, TimeoutException, InterruptedException {
       throws IOException, TimeoutException, InterruptedException {
@@ -168,6 +170,7 @@ public class DefaultHlsPlaylistTrackerTest {
         .isEqualTo(initialPlaylistWithAllSegments.segments.get(3).url);
         .isEqualTo(initialPlaylistWithAllSegments.segments.get(3).url);
   }
   }
 
 
+  @Ignore // Test disabled because playlist delta updates are temporarily disabled.
   @Test
   @Test
   public void start_playlistCanSkip_missingSegments_correctedMediaSequence()
   public void start_playlistCanSkip_missingSegments_correctedMediaSequence()
       throws IOException, TimeoutException, InterruptedException {
       throws IOException, TimeoutException, InterruptedException {
@@ -196,6 +199,7 @@ public class DefaultHlsPlaylistTrackerTest {
     assertThat(mergedPlaylist.segments).hasSize(4);
     assertThat(mergedPlaylist.segments).hasSize(4);
   }
   }
 
 
+  @Ignore // Test disabled because playlist delta updates are temporarily disabled.
   @Test
   @Test
   public void start_playlistCanSkipDataRanges_requestsDeltaUpdateV2()
   public void start_playlistCanSkipDataRanges_requestsDeltaUpdateV2()
       throws IOException, TimeoutException, InterruptedException {
       throws IOException, TimeoutException, InterruptedException {
@@ -220,6 +224,7 @@ public class DefaultHlsPlaylistTrackerTest {
     assertThat(mediaPlaylists.get(1).mediaSequence).isEqualTo(11);
     assertThat(mediaPlaylists.get(1).mediaSequence).isEqualTo(11);
   }
   }
 
 
+  @Ignore // Test disabled because playlist delta updates are temporarily disabled.
   @Test
   @Test
   public void start_playlistCanSkipAndUriWithParams_preservesOriginalParams()
   public void start_playlistCanSkipAndUriWithParams_preservesOriginalParams()
       throws IOException, TimeoutException, InterruptedException {
       throws IOException, TimeoutException, InterruptedException {
@@ -360,6 +365,7 @@ public class DefaultHlsPlaylistTrackerTest {
     assertThat(mediaPlaylists.get(1).trailingParts).hasSize(2);
     assertThat(mediaPlaylists.get(1).trailingParts).hasSize(2);
   }
   }
 
 
+  @Ignore // Test disabled because playlist delta updates are temporarily disabled.
   @Test
   @Test
   public void start_httpBadRequest_forcesFullNonBlockingPlaylistRequest()
   public void start_httpBadRequest_forcesFullNonBlockingPlaylistRequest()
       throws IOException, TimeoutException, InterruptedException {
       throws IOException, TimeoutException, InterruptedException {