Add some missing local @Nullable annotations

PiperOrigin-RevId: 292564056

library/common/src/main/java/com/google/android/exoplayer2/Format.java

@@ -1111,11 +1111,11 @@ public final class Format implements Parcelable {
     int trackType = MimeTypes.getTrackType(sampleMimeType);
     int trackType = MimeTypes.getTrackType(sampleMimeType);
 
 
     // Use manifest value only.
     // Use manifest value only.
-    String id = manifestFormat.id;
+    @Nullable String id = manifestFormat.id;
 
 
     // Prefer manifest values, but fill in from sample format if missing.
     // Prefer manifest values, but fill in from sample format if missing.
-    String label = manifestFormat.label != null ? manifestFormat.label : this.label;
-    String language = this.language;
+    @Nullable String label = manifestFormat.label != null ? manifestFormat.label : this.label;
+    @Nullable String language = this.language;
     if ((trackType == C.TRACK_TYPE_TEXT || trackType == C.TRACK_TYPE_AUDIO)
     if ((trackType == C.TRACK_TYPE_TEXT || trackType == C.TRACK_TYPE_AUDIO)
         && manifestFormat.language != null) {
         && manifestFormat.language != null) {
       language = manifestFormat.language;
       language = manifestFormat.language;
@@ -1123,7 +1123,7 @@ public final class Format implements Parcelable {
 
 
     // Prefer sample format values, but fill in from manifest if missing.
     // Prefer sample format values, but fill in from manifest if missing.
     int bitrate = this.bitrate == NO_VALUE ? manifestFormat.bitrate : this.bitrate;
     int bitrate = this.bitrate == NO_VALUE ? manifestFormat.bitrate : this.bitrate;
-    String codecs = this.codecs;
+    @Nullable String codecs = this.codecs;
     if (codecs == null) {
     if (codecs == null) {
       // The manifest format may be muxed, so filter only codecs of this format's type. If we still
       // The manifest format may be muxed, so filter only codecs of this format's type. If we still
       // have more than one codec then we're unable to uniquely identify which codec to fill in.
       // have more than one codec then we're unable to uniquely identify which codec to fill in.
@@ -1133,6 +1133,7 @@ public final class Format implements Parcelable {
       }
       }
     }
     }
 
 
+    @Nullable
     Metadata metadata =
     Metadata metadata =
         this.metadata == null
         this.metadata == null
             ? manifestFormat.metadata
             ? manifestFormat.metadata
@@ -1146,6 +1147,7 @@ public final class Format implements Parcelable {
     // Merge manifest and sample format values.
     // Merge manifest and sample format values.
     @C.SelectionFlags int selectionFlags = this.selectionFlags | manifestFormat.selectionFlags;
     @C.SelectionFlags int selectionFlags = this.selectionFlags | manifestFormat.selectionFlags;
     @C.RoleFlags int roleFlags = this.roleFlags | manifestFormat.roleFlags;
     @C.RoleFlags int roleFlags = this.roleFlags | manifestFormat.roleFlags;
+    @Nullable
     DrmInitData drmInitData =
     DrmInitData drmInitData =
         DrmInitData.createSessionCreationData(manifestFormat.drmInitData, this.drmInitData);
         DrmInitData.createSessionCreationData(manifestFormat.drmInitData, this.drmInitData);
 
 

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

@@ -1009,7 +1009,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
 
 
   private void updateSampleStreams(@NullableType SampleStream[] streams) {
   private void updateSampleStreams(@NullableType SampleStream[] streams) {
     hlsSampleStreams.clear();
     hlsSampleStreams.clear();
-    for (SampleStream stream : streams) {
+    for (@Nullable SampleStream stream : streams) {
       if (stream != null) {
       if (stream != null) {
         hlsSampleStreams.add((HlsSampleStream) stream);
         hlsSampleStreams.add((HlsSampleStream) stream);
       }
       }
@@ -1118,7 +1118,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
     int primaryExtractorTrackIndex = C.INDEX_UNSET;
     int primaryExtractorTrackIndex = C.INDEX_UNSET;
     int extractorTrackCount = sampleQueues.length;
     int extractorTrackCount = sampleQueues.length;
     for (int i = 0; i < extractorTrackCount; i++) {
     for (int i = 0; i < extractorTrackCount; i++) {
-      String sampleMimeType = sampleQueues[i].getUpstreamFormat().sampleMimeType;
+      @Nullable String sampleMimeType = sampleQueues[i].getUpstreamFormat().sampleMimeType;
       int trackType;
       int trackType;
       if (MimeTypes.isVideo(sampleMimeType)) {
       if (MimeTypes.isVideo(sampleMimeType)) {
         trackType = C.TRACK_TYPE_VIDEO;
         trackType = C.TRACK_TYPE_VIDEO;
@@ -1166,6 +1166,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
         trackGroups[i] = new TrackGroup(formats);
         trackGroups[i] = new TrackGroup(formats);
         primaryTrackGroupIndex = i;
         primaryTrackGroupIndex = i;
       } else {
       } else {
+        @Nullable
         Format trackFormat =
         Format trackFormat =
             primaryExtractorTrackType == C.TRACK_TYPE_VIDEO
             primaryExtractorTrackType == C.TRACK_TYPE_VIDEO
                     && MimeTypes.isAudio(sampleFormat.sampleMimeType)
                     && MimeTypes.isAudio(sampleFormat.sampleMimeType)
@@ -1280,8 +1281,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
             ? playlistFormat.channelCount
             ? playlistFormat.channelCount
             : sampleFormat.channelCount;
             : sampleFormat.channelCount;
     int sampleTrackType = MimeTypes.getTrackType(sampleFormat.sampleMimeType);
     int sampleTrackType = MimeTypes.getTrackType(sampleFormat.sampleMimeType);
-    String codecs = Util.getCodecsOfType(playlistFormat.codecs, sampleTrackType);
-    String mimeType = MimeTypes.getMediaMimeType(codecs);
+    @Nullable String codecs = Util.getCodecsOfType(playlistFormat.codecs, sampleTrackType);
+    @Nullable String mimeType = MimeTypes.getMediaMimeType(codecs);
     if (mimeType == null) {
     if (mimeType == null) {
       mimeType = sampleFormat.sampleMimeType;
       mimeType = sampleFormat.sampleMimeType;
     }
     }
@@ -1304,8 +1305,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
   }
   }
 
 
   private static boolean formatsMatch(Format manifestFormat, Format sampleFormat) {
   private static boolean formatsMatch(Format manifestFormat, Format sampleFormat) {
-    String manifestFormatMimeType = manifestFormat.sampleMimeType;
-    String sampleFormatMimeType = sampleFormat.sampleMimeType;
+    @Nullable String manifestFormatMimeType = manifestFormat.sampleMimeType;
+    @Nullable String sampleFormatMimeType = sampleFormat.sampleMimeType;
     int manifestFormatTrackType = MimeTypes.getTrackType(manifestFormatMimeType);
     int manifestFormatTrackType = MimeTypes.getTrackType(manifestFormatMimeType);
     if (manifestFormatTrackType != C.TRACK_TYPE_TEXT) {
     if (manifestFormatTrackType != C.TRACK_TYPE_TEXT) {
       return manifestFormatTrackType == MimeTypes.getTrackType(sampleFormatMimeType);
       return manifestFormatTrackType == MimeTypes.getTrackType(sampleFormatMimeType);