Merge pull request #5578 from szaboa:dev-v2-5529

PiperOrigin-RevId: 239398940

Merge pull request #5578 from szaboa:dev-v2-5529
PiperOrigin-RevId: 239398940
a86a9137 · Oliver Woodman · 448ca0cf · d7c2519a · a86a9137 · a86a9137
Commit a86a9137 authored Mar 20, 2019 by Oliver Woodman
Showing with 251 additions and 36 deletions
RELEASENOTES.md
extensions/cast/src/main/java/com/google/android/exoplayer2/ext/cast/CastUtils.java
library/core/src/main/java/com/google/android/exoplayer2/C.java
library/core/src/main/java/com/google/android/exoplayer2/Format.java
library/core/src/test/java/com/google/android/exoplayer2/FormatTest.java
library/core/src/test/java/com/google/android/exoplayer2/extractor/rawcc/RawCcExtractorTest.java
library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java
library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashMediaPeriodTest.java
library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashUtilTest.java
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsMasterPlaylist.java
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java
library/hls/src/test/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriodTest.java
library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestParser.java
library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaPeriodTest.java
library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestTest.java
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -5,6 +5,7 @@
 * Update to Mockito 2
 * Add new `ExoPlaybackException` types for remote exceptions and out-of-memory
  errors.
+* DASH: Parse role and accessibility descriptors into `Format.roleFlags`.
 * HLS:
  * Work around lack of LA_URL attribute in PlayReady key request init data.
  * Prevent unnecessary reloads of initialization segments.

--- a/extensions/cast/src/main/java/com/google/android/exoplayer2/ext/cast/CastUtils.java
+++ b/extensions/cast/src/main/java/com/google/android/exoplayer2/ext/cast/CastUtils.java
@@ -109,6 +109,7 @@ import com.google.android.gms.cast.MediaTrack;
        /* codecs= */ null,
        /* bitrate= */ Format.NO_VALUE,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        mediaTrack.getLanguage());
  }

--- a/library/core/src/main/java/com/google/android/exoplayer2/C.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/C.java
@@ -980,6 +980,69 @@ public final class C {
  public static final int NETWORK_TYPE_OTHER = 8;
  /**
+   * Track role flags. Possible values are {@link #ROLE_FLAG_MAIN}, {@link #ROLE_FLAG_ALTERNATE},
+   * {@link #ROLE_FLAG_SUPPLEMENTARY}, {@link #ROLE_FLAG_COMMENTARY}, {@link #ROLE_FLAG_DUB}, {@link
+   * #ROLE_FLAG_EMERGENCY}, {@link #ROLE_FLAG_CAPTION}, {@link #ROLE_FLAG_SUBTITLE}, {@link
+   * #ROLE_FLAG_SIGN}, {@link #ROLE_FLAG_ENHANCED_AUDIO_INTELLIGIBILITY}, {@link
+   * #ROLE_FLAG_DESCRIPTION}.
+   */
+  @Documented
+  @Retention(RetentionPolicy.SOURCE)
+  @IntDef(
+      flag = true,
+      value = {
+        ROLE_FLAG_MAIN,
+        ROLE_FLAG_ALTERNATE,
+        ROLE_FLAG_SUPPLEMENTARY,
+        ROLE_FLAG_COMMENTARY,
+        ROLE_FLAG_DUB,
+        ROLE_FLAG_EMERGENCY,
+        ROLE_FLAG_CAPTION,
+        ROLE_FLAG_SUBTITLE,
+        ROLE_FLAG_SIGN,
+        ROLE_FLAG_ENHANCED_AUDIO_INTELLIGIBILITY,
+        ROLE_FLAG_DESCRIPTION
+      })
+  public @interface RoleFlags {}
+  /** Indicates a main track. */
+  public static final int ROLE_FLAG_MAIN = 1;
+  /**
+   * Indicates an alternate track. For example a video track recorded from an different view point
+   * than the main track(s).
+   */
+  public static final int ROLE_FLAG_ALTERNATE = 1 << 1;
+  /**
+   * Indicates a supplementary track, meaning the track has lower importance than the main track(s).
+   * For example a video track that provides a visual accompaniment to a main audio track.
+   */
+  public static final int ROLE_FLAG_SUPPLEMENTARY = 1 << 2;
+  /** Indicates the track contains commentary, for example from the director. */
+  public static final int ROLE_FLAG_COMMENTARY = 1 << 3;
+  /**
+   * Indicates the track is in a different language from the original, for example dubbed audio or
+   * translated captions.
+   */
+  public static final int ROLE_FLAG_DUB = 1 << 4;
+  /** Indicates the track contains information about a current emergency. */
+  public static final int ROLE_FLAG_EMERGENCY = 1 << 5;
+  /**
+   * Indicates the track contains captions. This flag may be set on video tracks to indicate the
+   * presence of burned in captions.
+   */
+  public static final int ROLE_FLAG_CAPTION = 1 << 6;
+  /**
+   * Indicates the track contains subtitles. This flag may be set on video tracks to indicate the
+   * presence of burned in subtitles.
+   */
+  public static final int ROLE_FLAG_SUBTITLE = 1 << 7;
+  /** Indicates the track contains a visual sign-language interpretation of an audio track. */
+  public static final int ROLE_FLAG_SIGN = 1 << 8;
+  /** Indicates the track is designed for improved intelligibility of dialogue. */
+  public static final int ROLE_FLAG_ENHANCED_AUDIO_INTELLIGIBILITY = 1 << 9;
+  /** Indicates the track contains an audio or textual description of a video track. */
+  public static final int ROLE_FLAG_DESCRIPTION = 1 << 10;
+  /**
   * Converts a time in microseconds to the corresponding time in milliseconds, preserving
   * {@link #TIME_UNSET} and {@link #TIME_END_OF_SOURCE} values.
   *

--- a/library/core/src/main/java/com/google/android/exoplayer2/Format.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/Format.java
@@ -50,6 +50,8 @@ public final class Format implements Parcelable {
  public final @Nullable String label;
  /** Track selection flags. */
  @C.SelectionFlags public final int selectionFlags;
+  /** Track role flags. */
+  @C.RoleFlags public final int roleFlags;
  /**
   * The average bandwidth in bits per second, or {@link #NO_VALUE} if unknown or not applicable.
   */
@@ -189,7 +191,8 @@ public final class Format implements Parcelable {
        height,
        frameRate,
        initializationData,
-        selectionFlags);
+        selectionFlags,
+        /* roleFlags= */ 0);
  }
  public static Format createVideoContainerFormat(
@@ -203,11 +206,13 @@ public final class Format implements Parcelable {
      int height,
      float frameRate,
      @Nullable List<byte[]> initializationData,
-      @C.SelectionFlags int selectionFlags) {
+      @C.SelectionFlags int selectionFlags,
+      @C.RoleFlags int roleFlags) {
    return new Format(
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -311,6 +316,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -362,6 +368,7 @@ public final class Format implements Parcelable {
        sampleRate,
        initializationData,
        selectionFlags,
+        /* roleFlags= */ 0,
        language);
  }
@@ -376,11 +383,13 @@ public final class Format implements Parcelable {
      int sampleRate,
      @Nullable List<byte[]> initializationData,
      @C.SelectionFlags int selectionFlags,
+      @C.RoleFlags int roleFlags,
      @Nullable String language) {
    return new Format(
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -485,6 +494,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        selectionFlags,
+        /* roleFlags= */ 0,
        bitrate,
        codecs,
        metadata,
@@ -550,6 +560,7 @@ public final class Format implements Parcelable {
        codecs,
        bitrate,
        selectionFlags,
+        /* roleFlags= */ 0,
        language,
        /* accessibilityChannel= */ NO_VALUE);
  }
@@ -562,12 +573,14 @@ public final class Format implements Parcelable {
      @Nullable String codecs,
      int bitrate,
      @C.SelectionFlags int selectionFlags,
+      @C.RoleFlags int roleFlags,
      @Nullable String language,
      int accessibilityChannel) {
    return new Format(
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -680,6 +693,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        selectionFlags,
+        /* roleFlags= */ 0,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -721,6 +735,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        selectionFlags,
+        /* roleFlags= */ 0,
        bitrate,
        codecs,
        /* metadata=*/ null,
@@ -766,6 +781,7 @@ public final class Format implements Parcelable {
        codecs,
        bitrate,
        selectionFlags,
+        /* roleFlags= */ 0,
        language);
  }
@@ -777,11 +793,13 @@ public final class Format implements Parcelable {
      @Nullable String codecs,
      int bitrate,
      @C.SelectionFlags int selectionFlags,
+      @C.RoleFlags int roleFlags,
      @Nullable String language) {
    return new Format(
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -814,6 +832,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        /* bitrate= */ NO_VALUE,
        /* codecs= */ null,
        /* metadata= */ null,
@@ -850,6 +869,7 @@ public final class Format implements Parcelable {
        id,
        /* label= */ null,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        bitrate,
        codecs,
        /* metadata= */ null,
@@ -880,6 +900,7 @@ public final class Format implements Parcelable {
      @Nullable String id,
      @Nullable String label,
      @C.SelectionFlags int selectionFlags,
+      @C.RoleFlags int roleFlags,
      int bitrate,
      @Nullable String codecs,
      @Nullable Metadata metadata,
@@ -912,6 +933,7 @@ public final class Format implements Parcelable {
    this.id = id;
    this.label = label;
    this.selectionFlags = selectionFlags;
+    this.roleFlags = roleFlags;
    this.bitrate = bitrate;
    this.codecs = codecs;
    this.metadata = metadata;
@@ -950,6 +972,7 @@ public final class Format implements Parcelable {
    id = in.readString();
    label = in.readString();
    selectionFlags = in.readInt();
+    roleFlags = in.readInt();
    bitrate = in.readInt();
    codecs = in.readString();
    metadata = in.readParcelable(Metadata.class.getClassLoader());
@@ -986,12 +1009,12 @@ public final class Format implements Parcelable {
    accessibilityChannel = in.readInt();
  }
  public Format copyWithMaxInputSize(int maxInputSize) {
    return new Format(
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1023,6 +1046,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1064,6 +1088,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1128,6 +1153,7 @@ public final class Format implements Parcelable {
    // Merge manifest and sample format values.
    @C.SelectionFlags int selectionFlags = this.selectionFlags | manifestFormat.selectionFlags;
+    @C.RoleFlags int roleFlags = this.roleFlags | manifestFormat.roleFlags;
    DrmInitData drmInitData =
        DrmInitData.createSessionCreationData(manifestFormat.drmInitData, this.drmInitData);
@@ -1135,6 +1161,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1166,6 +1193,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1197,6 +1225,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1228,6 +1257,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1259,6 +1289,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1290,6 +1321,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1321,6 +1353,7 @@ public final class Format implements Parcelable {
        id,
        label,
        selectionFlags,
+        roleFlags,
        bitrate,
        codecs,
        metadata,
@@ -1393,6 +1426,7 @@ public final class Format implements Parcelable {
      result = 31 * result + (id == null ? 0 : id.hashCode());
      result = 31 * result + (label != null ? label.hashCode() : 0);
      result = 31 * result + selectionFlags;
+      result = 31 * result + roleFlags;
      result = 31 * result + bitrate;
      result = 31 * result + (codecs == null ? 0 : codecs.hashCode());
      result = 31 * result + (metadata == null ? 0 : metadata.hashCode());
@@ -1441,6 +1475,7 @@ public final class Format implements Parcelable {
    }
    // Field equality checks ordered by type, with the cheapest checks first.
    return selectionFlags == other.selectionFlags
+        && roleFlags == other.roleFlags
        && bitrate == other.bitrate
        && maxInputSize == other.maxInputSize
        && subsampleOffsetUs == other.subsampleOffsetUs
@@ -1537,6 +1572,7 @@ public final class Format implements Parcelable {
    dest.writeString(id);
    dest.writeString(label);
    dest.writeInt(selectionFlags);
+    dest.writeInt(roleFlags);
    dest.writeInt(bitrate);
    dest.writeString(codecs);
    dest.writeParcelable(metadata, 0);

--- a/library/core/src/test/java/com/google/android/exoplayer2/FormatTest.java
+++ b/library/core/src/test/java/com/google/android/exoplayer2/FormatTest.java
@@ -39,7 +39,6 @@ import org.junit.runner.RunWith;
 public final class FormatTest {
  private static final List<byte[]> initData;
  static {
    byte[] initData1 = new byte[] {1, 2, 3};
    byte[] initData2 = new byte[] {4, 5, 6};
@@ -68,6 +67,7 @@ public final class FormatTest {
            "id",
            "label",
            C.SELECTION_FLAG_DEFAULT,
+            C.ROLE_FLAG_MAIN,
            /* bitrate= */ 1024,
            "codec",
            metadata,

--- a/library/core/src/test/java/com/google/android/exoplayer2/extractor/rawcc/RawCcExtractorTest.java
+++ b/library/core/src/test/java/com/google/android/exoplayer2/extractor/rawcc/RawCcExtractorTest.java
@@ -39,6 +39,7 @@ public final class RawCcExtractorTest {
                    /* codecs= */ "cea608",
                    /* bitrate= */ Format.NO_VALUE,
                    /* selectionFlags= */ 0,
+                    /* roleFlags= */ 0,
                    /* language= */ null,
                    /* accessibilityChannel= */ 1)),
        "rawcc/sample.rawcc");

--- a/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java
+++ b/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java
@@ -276,9 +276,9 @@ public class DashManifestParser extends DefaultHandler
    ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
    ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
    ArrayList<Descriptor> accessibilityDescriptors = new ArrayList<>();
+    ArrayList<Descriptor> roleDescriptors = new ArrayList<>();
    ArrayList<Descriptor> supplementalProperties = new ArrayList<>();
    List<RepresentationInfo> representationInfos = new ArrayList<>();
-    @C.SelectionFlags int selectionFlags = 0;
    boolean seenFirstBaseUrl = false;
    do {
@@ -300,7 +300,7 @@ public class DashManifestParser extends DefaultHandler
        language = checkLanguageConsistency(language, xpp.getAttributeValue(null, "lang"));
        contentType = checkContentTypeConsistency(contentType, parseContentType(xpp));
      } else if (XmlPullParserUtil.isStartTag(xpp, "Role")) {
-        selectionFlags |= parseRole(xpp);
+        roleDescriptors.add(parseDescriptor(xpp, "Role"));
      } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
        audioChannels = parseAudioChannelConfiguration(xpp);
      } else if (XmlPullParserUtil.isStartTag(xpp, "Accessibility")) {
@@ -321,7 +321,7 @@ public class DashManifestParser extends DefaultHandler
                audioChannels,
                audioSamplingRate,
                language,
-                selectionFlags,
+                roleDescriptors,
                accessibilityDescriptors,
                segmentBase);
        contentType = checkContentTypeConsistency(contentType,
@@ -465,24 +465,6 @@ public class DashManifestParser extends DefaultHandler
  }
  /**
-   * Parses a Role element.
-   *
-   * @param xpp The parser from which to read.
-   * @throws XmlPullParserException If an error occurs parsing the element.
-   * @throws IOException If an error occurs reading the element.
-   * @return {@link C.SelectionFlags} parsed from the element.
-   */
-  protected int parseRole(XmlPullParser xpp) throws XmlPullParserException, IOException {
-    String schemeIdUri = parseString(xpp, "schemeIdUri", null);
-    String value = parseString(xpp, "value", null);
-    do {
-      xpp.next();
-    } while (!XmlPullParserUtil.isEndTag(xpp, "Role"));
-    return "urn:mpeg:dash:role:2011".equals(schemeIdUri) && "main".equals(value)
-        ? C.SELECTION_FLAG_DEFAULT : 0;
-  }
-  /**
   * Parses children of AdaptationSet elements not specifically parsed elsewhere.
   *
   * @param xpp The XmpPullParser from which the AdaptationSet child should be parsed.
@@ -508,7 +490,7 @@ public class DashManifestParser extends DefaultHandler
      int adaptationSetAudioChannels,
      int adaptationSetAudioSamplingRate,
      String adaptationSetLanguage,
-      @C.SelectionFlags int adaptationSetSelectionFlags,
+      List<Descriptor> adaptationSetRoleDescriptors,
      List<Descriptor> adaptationSetAccessibilityDescriptors,
      SegmentBase segmentBase)
      throws XmlPullParserException, IOException {
@@ -572,7 +554,7 @@ public class DashManifestParser extends DefaultHandler
            audioSamplingRate,
            bandwidth,
            adaptationSetLanguage,
-            adaptationSetSelectionFlags,
+            adaptationSetRoleDescriptors,
            adaptationSetAccessibilityDescriptors,
            codecs,
            supplementalProperties);
@@ -593,11 +575,14 @@ public class DashManifestParser extends DefaultHandler
      int audioSamplingRate,
      int bitrate,
      String language,
-      @C.SelectionFlags int selectionFlags,
+      List<Descriptor> roleDescriptors,
      List<Descriptor> accessibilityDescriptors,
      String codecs,
      List<Descriptor> supplementalProperties) {
    String sampleMimeType = getSampleMimeType(containerMimeType, codecs);
+    @C.SelectionFlags int selectionFlags = parseSelectionFlagsFromRoleDescriptors(roleDescriptors);
+    @C.RoleFlags int roleFlags = parseRoleFlagsFromRoleDescriptors(roleDescriptors);
+    roleFlags |= parseRoleFlagsFromAccessibilityDescriptors(accessibilityDescriptors);
    if (sampleMimeType != null) {
      if (MimeTypes.AUDIO_E_AC3.equals(sampleMimeType)) {
        sampleMimeType = parseEac3SupplementalProperties(supplementalProperties);
@@ -614,7 +599,8 @@ public class DashManifestParser extends DefaultHandler
            height,
            frameRate,
            /* initializationData= */ null,
-            selectionFlags);
+            selectionFlags,
+            roleFlags);
      } else if (MimeTypes.isAudio(sampleMimeType)) {
        return Format.createAudioContainerFormat(
            id,
@@ -627,6 +613,7 @@ public class DashManifestParser extends DefaultHandler
            audioSamplingRate,
            /* initializationData= */ null,
            selectionFlags,
+            roleFlags,
            language);
      } else if (mimeTypeIsRawText(sampleMimeType)) {
        int accessibilityChannel;
@@ -645,12 +632,21 @@ public class DashManifestParser extends DefaultHandler
            codecs,
            bitrate,
            selectionFlags,
+            roleFlags,
            language,
            accessibilityChannel);
      }
    }
    return Format.createContainerFormat(
-        id, label, containerMimeType, sampleMimeType, codecs, bitrate, selectionFlags, language);
+        id,
+        label,
+        containerMimeType,
+        sampleMimeType,
+        codecs,
+        bitrate,
+        selectionFlags,
+        roleFlags,
+        language);
  }
  protected Representation buildRepresentation(
@@ -1064,6 +1060,103 @@ public class DashManifestParser extends DefaultHandler
    return audioChannels;
  }
+  // Selection flag parsing.
+  protected int parseSelectionFlagsFromRoleDescriptors(List<Descriptor> roleDescriptors) {
+    for (int i = 0; i < roleDescriptors.size(); i++) {
+      Descriptor descriptor = roleDescriptors.get(i);
+      if ("urn:mpeg:dash:role:2011".equalsIgnoreCase(descriptor.schemeIdUri)
+          && "main".equals(descriptor.value)) {
+        return C.SELECTION_FLAG_DEFAULT;
+      }
+    }
+    return 0;
+  }
+  // Role and Accessibility parsing.
+  @C.RoleFlags
+  protected int parseRoleFlagsFromRoleDescriptors(List<Descriptor> roleDescriptors) {
+    @C.RoleFlags int result = 0;
+    for (int i = 0; i < roleDescriptors.size(); i++) {
+      Descriptor descriptor = roleDescriptors.get(i);
+      if ("urn:mpeg:dash:role:2011".equalsIgnoreCase(descriptor.schemeIdUri)) {
+        result |= parseDashRoleSchemeValue(descriptor.value);
+      }
+    }
+    return result;
+  }
+  @C.RoleFlags
+  protected int parseRoleFlagsFromAccessibilityDescriptors(
+      List<Descriptor> accessibilityDescriptors) {
+    @C.RoleFlags int result = 0;
+    for (int i = 0; i < accessibilityDescriptors.size(); i++) {
+      Descriptor descriptor = accessibilityDescriptors.get(i);
+      if ("urn:mpeg:dash:role:2011".equalsIgnoreCase(descriptor.schemeIdUri)) {
+        result |= parseDashRoleSchemeValue(descriptor.value);
+      } else if ("urn:tva:metadata:cs:AudioPurposeCS:2007"
+          .equalsIgnoreCase(descriptor.schemeIdUri)) {
+        result |= parseTvaAudioPurposeCsValue(descriptor.value);
+      }
+    }
+    return result;
+  }
+  @C.RoleFlags
+  protected int parseDashRoleSchemeValue(String value) {
+    if (value == null) {
+      return 0;
+    }
+    switch (value) {
+      case "main":
+        return C.ROLE_FLAG_MAIN;
+      case "alternate":
+        return C.ROLE_FLAG_ALTERNATE;
+      case "supplementary":
+        return C.ROLE_FLAG_SUPPLEMENTARY;
+      case "commentary":
+        return C.ROLE_FLAG_COMMENTARY;
+      case "dub":
+        return C.ROLE_FLAG_DUB;
+      case "emergency":
+        return C.ROLE_FLAG_EMERGENCY;
+      case "caption":
+        return C.ROLE_FLAG_CAPTION;
+      case "subtitle":
+        return C.ROLE_FLAG_SUBTITLE;
+      case "sign":
+        return C.ROLE_FLAG_SIGN;
+      case "description":
+        return C.ROLE_FLAG_DESCRIPTION;
+      case "enhanced-audio-intelligibility":
+        return C.ROLE_FLAG_ENHANCED_AUDIO_INTELLIGIBILITY;
+      default:
+        return 0;
+    }
+  }
+  @C.RoleFlags
+  protected int parseTvaAudioPurposeCsValue(String value) {
+    if (value == null) {
+      return 0;
+    }
+    switch (value) {
+      case "1": // Audio description for the visually impaired.
+        return C.ROLE_FLAG_DESCRIPTION;
+      case "2": // Audio description for the hard of hearing.
+        return C.ROLE_FLAG_ENHANCED_AUDIO_INTELLIGIBILITY;
+      case "3": // Supplemental commentary.
+        return C.ROLE_FLAG_SUPPLEMENTARY;
+      case "4": // Director's commentary.
+        return C.ROLE_FLAG_COMMENTARY;
+      case "6": // Main programme audio.
+        return C.ROLE_FLAG_MAIN;
+      default:
+        return 0;
+    }
+  }
  // Utility methods.
  /**

--- a/library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashMediaPeriodTest.java
+++ b/library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashMediaPeriodTest.java
@@ -193,6 +193,7 @@ public final class DashMediaPeriodTest {
        /* codecs= */ null,
        bitrate,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        /* language= */ null);
  }
@@ -207,6 +208,7 @@ public final class DashMediaPeriodTest {
            /* codecs= */ null,
            bitrate,
            /* selectionFlags= */ 0,
+            /* roleFlags= */ 0,
            /* language= */ null),
        /* baseUrl= */ "",
        new SingleSegmentBase());
@@ -223,6 +225,7 @@ public final class DashMediaPeriodTest {
            /* codecs= */ null,
            /* bitrate= */ Format.NO_VALUE,
            /* selectionFlags= */ 0,
+            /* roleFlags= */ 0,
            language),
        /* baseUrl= */ "",
        new SingleSegmentBase());

--- a/library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashUtilTest.java
+++ b/library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashUtilTest.java
@@ -85,7 +85,8 @@ public final class DashUtilTest {
            /* height= */ 768,
            Format.NO_VALUE,
            /* initializationData= */ null,
-            /* selectionFlags= */ 0);
+            /* selectionFlags= */ 0,
+            /* roleFlags= */ 0);
    if (drmInitData != null) {
      format = format.copyWithDrmInitData(drmInitData);
    }

--- a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
+++ b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
@@ -702,7 +702,8 @@ public final class HlsMediaPeriod implements MediaPeriod, HlsSampleStreamWrapper
        variantFormat.height,
        variantFormat.frameRate,
        /* initializationData= */ null,
-        variantFormat.selectionFlags);
+        variantFormat.selectionFlags,
+        /* roleFlags= */ 0);
  }
  private static Format deriveAudioFormat(
@@ -740,6 +741,7 @@ public final class HlsMediaPeriod implements MediaPeriod, HlsSampleStreamWrapper
        /* sampleRate= */ Format.NO_VALUE,
        /* initializationData= */ null,
        selectionFlags,
+        /* roleFlags= */ 0,
        language);
  }

--- a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsMasterPlaylist.java
+++ b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsMasterPlaylist.java
@@ -78,6 +78,7 @@ public final class HlsMasterPlaylist extends HlsPlaylist {
              /* codecs= */ null,
              /* bitrate= */ Format.NO_VALUE,
              /* selectionFlags= */ 0,
+              /* roleFlags= */ 0,
              /* language= */ null);
      return new HlsUrl(url, format, /* name= */ "");
    }

--- a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java
+++ b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java
@@ -329,7 +329,8 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
                  height,
                  frameRate,
                  /* initializationData= */ null,
-                  /* selectionFlags= */ 0);
+                  /* selectionFlags= */ 0,
+                  /* roleFlags= */ 0);
          variants.add(new HlsMasterPlaylist.HlsUrl(line, format, /* name= */ ""));
        }
      }
@@ -361,6 +362,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
                  /* sampleRate= */ Format.NO_VALUE,
                  /* initializationData= */ null,
                  selectionFlags,
+                  /* roleFlags= */ 0,
                  language);
          if (isMediaTagMuxed(variants, uri)) {
            muxedAudioFormat = format;
@@ -404,6 +406,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
                  /* codecs= */ null,
                  /* bitrate= */ Format.NO_VALUE,
                  selectionFlags,
+                  /* roleFlags= */ 0,
                  language,
                  accessibilityChannel));
          break;

--- a/library/hls/src/test/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriodTest.java
+++ b/library/hls/src/test/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriodTest.java
@@ -127,7 +127,8 @@ public final class HlsMediaPeriodTest {
            /* height= */ Format.NO_VALUE,
            /* frameRate= */ Format.NO_VALUE,
            /* initializationData= */ null,
-            /* selectionFlags= */ 0),
+            /* selectionFlags= */ 0,
+            /* roleFlags= */ 0),
        /* name= */ "");
  }
@@ -145,7 +146,8 @@ public final class HlsMediaPeriodTest {
            /* height= */ Format.NO_VALUE,
            /* frameRate= */ Format.NO_VALUE,
            /* initializationData= */ null,
-            /* selectionFlags= */ 0),
+            /* selectionFlags= */ 0,
+            /* roleFlags= */ 0),
        /* name= */ "");
  }
@@ -169,6 +171,7 @@ public final class HlsMediaPeriodTest {
        /* sampleRate= */ Format.NO_VALUE,
        /* initializationData= */ null,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        language);
  }

--- a/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestParser.java
+++ b/library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestParser.java
@@ -681,7 +681,8 @@ public class SsManifestParser implements ParsingLoadable.Parser<SsManifest> {
                height,
                /* frameRate= */ Format.NO_VALUE,
                codecSpecificData,
-                /* selectionFlags= */ 0);
+                /* selectionFlags= */ 0,
+                /* roleFlags= */ 0);
      } else if (type == C.TRACK_TYPE_AUDIO) {
        sampleMimeType = sampleMimeType == null ? MimeTypes.AUDIO_AAC : sampleMimeType;
        int channels = parseRequiredInt(parser, KEY_CHANNELS);
@@ -705,6 +706,7 @@ public class SsManifestParser implements ParsingLoadable.Parser<SsManifest> {
                samplingRate,
                codecSpecificData,
                /* selectionFlags= */ 0,
+                /* roleFlags= */ 0,
                language);
      } else if (type == C.TRACK_TYPE_TEXT) {
        String language = (String) getNormalizedAttribute(KEY_LANGUAGE);
@@ -728,6 +730,7 @@ public class SsManifestParser implements ParsingLoadable.Parser<SsManifest> {
                /* codecs= */ null,
                bitrate,
                /* selectionFlags= */ 0,
+                /* roleFlags= */ 0,
                /* language= */ null);
      }
    }

--- a/library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaPeriodTest.java
+++ b/library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaPeriodTest.java
@@ -89,6 +89,7 @@ public class SsMediaPeriodTest {
        /* codecs= */ null,
        bitrate,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        /* language= */ null);
  }
@@ -101,6 +102,7 @@ public class SsMediaPeriodTest {
        /* codecs= */ null,
        bitrate,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        /* language= */ null);
  }
@@ -113,6 +115,7 @@ public class SsMediaPeriodTest {
        /* codecs= */ null,
        /* bitrate= */ Format.NO_VALUE,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        language);
  }
 }
--- a/library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestTest.java
+++ b/library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestTest.java
@@ -122,6 +122,7 @@ public class SsManifestTest {
        /* codecs= */ null,
        /* bitrate= */ Format.NO_VALUE,
        /* selectionFlags= */ 0,
+        /* roleFlags= */ 0,
        /* language= */ null);
  }
 }