Fix second-order issues

Fix second-order issues stemming from the addition of multi-value tags.

extensions/ima/src/main/java/com/google/android/exoplayer2/ext/ima/ImaServerSideAdInsertionMediaSource.java

@@ -824,7 +824,7 @@ public final class ImaServerSideAdInsertionMediaSource extends CompositeMediaSou
         if (entry instanceof TextInformationFrame) {
           TextInformationFrame textFrame = (TextInformationFrame) entry;
           if ("TXXX".equals(textFrame.id)) {
-            streamPlayer.triggerUserTextReceived(textFrame.value);
+            streamPlayer.triggerUserTextReceived(textFrame.values[0]);
           }
         } else if (entry instanceof EventMessage) {
           EventMessage eventMessage = (EventMessage) entry;

library/core/src/test/java/com/google/android/exoplayer2/metadata/MetadataRendererTest.java

@@ -107,7 +107,7 @@ public class MetadataRendererTest {
     assertThat(metadata).hasSize(1);
     assertThat(metadata.get(0).length()).isEqualTo(1);
     TextInformationFrame expectedId3Frame =
-        new TextInformationFrame("TXXX", "Test description", "Test value");
+        new TextInformationFrame("TXXX", "Test description", new String[] { "Test value" });
     assertThat(metadata.get(0).get(0)).isEqualTo(expectedId3Frame);
   }
 

library/extractor/src/main/java/com/google/android/exoplayer2/extractor/mp3/Mp3Extractor.java

@@ -592,7 +592,7 @@ public final class Mp3Extractor implements Extractor {
         Metadata.Entry entry = metadata.get(i);
         if (entry instanceof TextInformationFrame
             && ((TextInformationFrame) entry).id.equals("TLEN")) {
-          return Util.msToUs(Long.parseLong(((TextInformationFrame) entry).value));
+          return Util.msToUs(Long.parseLong(((TextInformationFrame) entry).values[0]));
         }
       }
     }

library/extractor/src/main/java/com/google/android/exoplayer2/metadata/id3/Id3Decoder.java

@@ -464,6 +464,10 @@ public final class Id3Decoder extends SimpleMetadataDecoder {
     ArrayList<String> values = new ArrayList<>();
 
     int valueStartIndex = descriptionEndIndex + delimiterLength(encoding);
+    if (valueStartIndex >= data.length) {
+      return new TextInformationFrame("TXXX", description, new String[0]);
+    }
+
     int valueEndIndex = indexOfTerminator(data, valueStartIndex, encoding);
     while (valueStartIndex < valueEndIndex) {
       String value = decodeStringIfValid(data, valueStartIndex, valueEndIndex, charset);
@@ -496,6 +500,10 @@ public final class Id3Decoder extends SimpleMetadataDecoder {
     ArrayList<String> values = new ArrayList<>();
 
     int valueStartIndex = 0;
+    if (valueStartIndex >= data.length) {
+      return new TextInformationFrame(id, null, new String[0]);
+    }
+
     int valueEndIndex = indexOfTerminator(data, valueStartIndex, encoding);
     while (valueStartIndex < valueEndIndex) {
       String value = decodeStringIfValid(data, valueStartIndex, valueEndIndex, charset);

library/extractor/src/main/java/com/google/android/exoplayer2/metadata/id3/TextInformationFrame.java

@@ -19,6 +19,7 @@ import static com.google.android.exoplayer2.util.Util.castNonNull;
 
 import android.os.Parcel;
 import android.os.Parcelable;
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.MediaMetadata;
 import com.google.android.exoplayer2.util.Util;
@@ -36,17 +37,19 @@ public final class TextInformationFrame extends Id3Frame {
   @Deprecated
   public final String value;
 
+  @NonNull
   public final String[] values;
 
-  public TextInformationFrame(String id, @Nullable String description, String[] values) {
+  public TextInformationFrame(String id, @Nullable String description, @NonNull String[] values) {
     super(id);
-    if (values.length == 0) {
-      throw new IllegalArgumentException("A text information frame must have at least one value.");
-    }
-
     this.description = description;
     this.values = values;
+
+    if (values.length > 0) {
       this.value = values[0];
+    } else {
+      this.value = null;
+    }
   }
 
   /** @deprecated Use {@code TextInformationFrame(String id, String description, String[] values} instead */
@@ -58,8 +61,7 @@ public final class TextInformationFrame extends Id3Frame {
   /* package */ TextInformationFrame(Parcel in) {
     super(castNonNull(in.readString()));
     description = in.readString();
-    values = new String[] {};
-    in.readStringArray(values);
+    values = in.createStringArray();
     this.value = values[0];
   }
 
@@ -181,7 +183,7 @@ public final class TextInformationFrame extends Id3Frame {
     TextInformationFrame other = (TextInformationFrame) obj;
     return Util.areEqual(id, other.id)
         && Util.areEqual(description, other.description)
-        && Util.areEqual(values, other.values);
+        && Arrays.equals(values, other.values);
   }
 
   @Override
@@ -195,7 +197,7 @@ public final class TextInformationFrame extends Id3Frame {
 
   @Override
   public String toString() {
-    return id + ": description=" + description + ": values=" + String.join(MULTI_VALUE_DELIMITER, values);
+    return id + ": description=" + description + ": value=" + String.join(MULTI_VALUE_DELIMITER, values);
   }
 
   // Parcelable implementation.

library/extractor/src/test/java/com/google/android/exoplayer2/metadata/id3/Id3DecoderTest.java

@@ -52,7 +52,7 @@ public final class Id3DecoderTest {
     TextInformationFrame textInformationFrame = (TextInformationFrame) metadata.get(0);
     assertThat(textInformationFrame.id).isEqualTo("TXXX");
     assertThat(textInformationFrame.description).isEmpty();
-    assertThat(textInformationFrame.value).isEqualTo("mdialog_VINDICO1527664_start");
+    assertThat(textInformationFrame.values[0]).isEqualTo("mdialog_VINDICO1527664_start");
 
     // Test UTF-16.
     rawId3 =
@@ -67,7 +67,7 @@ public final class Id3DecoderTest {
     textInformationFrame = (TextInformationFrame) metadata.get(0);
     assertThat(textInformationFrame.id).isEqualTo("TXXX");
     assertThat(textInformationFrame.description).isEqualTo("Hello World");
-    assertThat(textInformationFrame.value).isEmpty();
+    assertThat(textInformationFrame.values).isEmpty();
 
     // Test empty.
     rawId3 = buildSingleFrameTag("TXXX", new byte[0]);
@@ -81,7 +81,7 @@ public final class Id3DecoderTest {
     textInformationFrame = (TextInformationFrame) metadata.get(0);
     assertThat(textInformationFrame.id).isEqualTo("TXXX");
     assertThat(textInformationFrame.description).isEmpty();
-    assertThat(textInformationFrame.value).isEmpty();
+    assertThat(textInformationFrame.values).isEmpty();
   }
 
   @Test
@@ -95,7 +95,8 @@ public final class Id3DecoderTest {
     TextInformationFrame textInformationFrame = (TextInformationFrame) metadata.get(0);
     assertThat(textInformationFrame.id).isEqualTo("TIT2");
     assertThat(textInformationFrame.description).isNull();
-    assertThat(textInformationFrame.value).isEqualTo("Hello World");
+    assertThat(textInformationFrame.values.length).isEqualTo(1);
+    assertThat(textInformationFrame.values[0]).isEqualTo("Hello World");
 
     // Test empty.
     rawId3 = buildSingleFrameTag("TIT2", new byte[0]);
@@ -109,7 +110,7 @@ public final class Id3DecoderTest {
     textInformationFrame = (TextInformationFrame) metadata.get(0);
     assertThat(textInformationFrame.id).isEqualTo("TIT2");
     assertThat(textInformationFrame.description).isNull();
-    assertThat(textInformationFrame.value).isEmpty();
+    assertThat(textInformationFrame.values).isEmpty();
   }
 
   @Test