Parse trick-play role flags from DASH manifests

Issue: #6054
PiperOrigin-RevId: 306641689

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/AdaptationSet.java

@@ -50,9 +50,10 @@ public class AdaptationSet {
    */
   public final List<Descriptor> accessibilityDescriptors;
 
-  /**
-   * Supplemental properties in the adaptation set.
-   */
+  /** Essential properties in the adaptation set. */
+  public final List<Descriptor> essentialProperties;
+
+  /** Supplemental properties in the adaptation set. */
   public final List<Descriptor> supplementalProperties;
 
   /**
@@ -62,21 +63,21 @@ public class AdaptationSet {
    *     {@code TRACK_TYPE_*} constants.
    * @param representations {@link Representation}s in the adaptation set.
    * @param accessibilityDescriptors Accessibility descriptors in the adaptation set.
+   * @param essentialProperties Essential properties in the adaptation set.
    * @param supplementalProperties Supplemental properties in the adaptation set.
    */
-  public AdaptationSet(int id, int type, List<Representation> representations,
-      List<Descriptor> accessibilityDescriptors, List<Descriptor> supplementalProperties) {
+  public AdaptationSet(
+      int id,
+      int type,
+      List<Representation> representations,
+      List<Descriptor> accessibilityDescriptors,
+      List<Descriptor> essentialProperties,
+      List<Descriptor> supplementalProperties) {
     this.id = id;
     this.type = type;
     this.representations = Collections.unmodifiableList(representations);
-    this.accessibilityDescriptors =
-        accessibilityDescriptors == null
-            ? Collections.emptyList()
-            : Collections.unmodifiableList(accessibilityDescriptors);
-    this.supplementalProperties =
-        supplementalProperties == null
-            ? Collections.emptyList()
-            : Collections.unmodifiableList(supplementalProperties);
+    this.accessibilityDescriptors = Collections.unmodifiableList(accessibilityDescriptors);
+    this.essentialProperties = Collections.unmodifiableList(essentialProperties);
+    this.supplementalProperties = Collections.unmodifiableList(supplementalProperties);
   }
-
 }

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifest.java

@@ -224,9 +224,14 @@ private static ArrayList<AdaptationSet> copyAdaptationSets(
         key = keys.poll();
       } while (key.periodIndex == periodIndex && key.groupIndex == adaptationSetIndex);
 
-      copyAdaptationSets.add(new AdaptationSet(adaptationSet.id, adaptationSet.type,
-          copyRepresentations, adaptationSet.accessibilityDescriptors,
-          adaptationSet.supplementalProperties));
+      copyAdaptationSets.add(
+          new AdaptationSet(
+              adaptationSet.id,
+              adaptationSet.type,
+              copyRepresentations,
+              adaptationSet.accessibilityDescriptors,
+              adaptationSet.essentialProperties,
+              adaptationSet.supplementalProperties));
     } while(key.periodIndex == periodIndex);
     // Add back the last key which doesn't belong to the period being processed
     keys.addFirst(key);

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java

@@ -289,6 +289,7 @@ protected AdaptationSet parseAdaptationSet(
     ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
     ArrayList<Descriptor> accessibilityDescriptors = new ArrayList<>();
     ArrayList<Descriptor> roleDescriptors = new ArrayList<>();
+    ArrayList<Descriptor> essentialProperties = new ArrayList<>();
     ArrayList<Descriptor> supplementalProperties = new ArrayList<>();
     List<RepresentationInfo> representationInfos = new ArrayList<>();
 
@@ -317,6 +318,8 @@ protected AdaptationSet parseAdaptationSet(
         audioChannels = parseAudioChannelConfiguration(xpp);
       } else if (XmlPullParserUtil.isStartTag(xpp, "Accessibility")) {
         accessibilityDescriptors.add(parseDescriptor(xpp, "Accessibility"));
+      } else if (XmlPullParserUtil.isStartTag(xpp, "EssentialProperty")) {
+        essentialProperties.add(parseDescriptor(xpp, "EssentialProperty"));
       } else if (XmlPullParserUtil.isStartTag(xpp, "SupplementalProperty")) {
         supplementalProperties.add(parseDescriptor(xpp, "SupplementalProperty"));
       } else if (XmlPullParserUtil.isStartTag(xpp, "Representation")) {
@@ -334,6 +337,7 @@ protected AdaptationSet parseAdaptationSet(
                 language,
                 roleDescriptors,
                 accessibilityDescriptors,
+                essentialProperties,
                 supplementalProperties,
                 segmentBase,
                 periodDurationMs);
@@ -370,14 +374,28 @@ protected AdaptationSet parseAdaptationSet(
               inbandEventStreams));
     }
 
-    return buildAdaptationSet(id, contentType, representations, accessibilityDescriptors,
+    return buildAdaptationSet(
+        id,
+        contentType,
+        representations,
+        accessibilityDescriptors,
+        essentialProperties,
         supplementalProperties);
   }
 
-  protected AdaptationSet buildAdaptationSet(int id, int contentType,
-      List<Representation> representations, List<Descriptor> accessibilityDescriptors,
+  protected AdaptationSet buildAdaptationSet(
+      int id,
+      int contentType,
+      List<Representation> representations,
+      List<Descriptor> accessibilityDescriptors,
+      List<Descriptor> essentialProperties,
       List<Descriptor> supplementalProperties) {
-    return new AdaptationSet(id, contentType, representations, accessibilityDescriptors,
+    return new AdaptationSet(
+        id,
+        contentType,
+        representations,
+        accessibilityDescriptors,
+        essentialProperties,
         supplementalProperties);
   }
 
@@ -492,6 +510,7 @@ protected RepresentationInfo parseRepresentation(
       @Nullable String adaptationSetLanguage,
       List<Descriptor> adaptationSetRoleDescriptors,
       List<Descriptor> adaptationSetAccessibilityDescriptors,
+      List<Descriptor> adaptationSetEssentialProperties,
       List<Descriptor> adaptationSetSupplementalProperties,
       @Nullable SegmentBase segmentBase,
       long periodDurationMs)
@@ -509,7 +528,9 @@ protected RepresentationInfo parseRepresentation(
     String drmSchemeType = null;
     ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
     ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
-    ArrayList<Descriptor> supplementalProperties = new ArrayList<>();
+    ArrayList<Descriptor> essentialProperties = new ArrayList<>(adaptationSetEssentialProperties);
+    ArrayList<Descriptor> supplementalProperties =
+        new ArrayList<>(adaptationSetSupplementalProperties);
 
     boolean seenFirstBaseUrl = false;
     do {
@@ -542,6 +563,8 @@ protected RepresentationInfo parseRepresentation(
         }
       } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
         inbandEventStreams.add(parseDescriptor(xpp, "InbandEventStream"));
+      } else if (XmlPullParserUtil.isStartTag(xpp, "EssentialProperty")) {
+        essentialProperties.add(parseDescriptor(xpp, "EssentialProperty"));
       } else if (XmlPullParserUtil.isStartTag(xpp, "SupplementalProperty")) {
         supplementalProperties.add(parseDescriptor(xpp, "SupplementalProperty"));
       } else {
@@ -563,6 +586,7 @@ protected RepresentationInfo parseRepresentation(
             adaptationSetRoleDescriptors,
             adaptationSetAccessibilityDescriptors,
             codecs,
+            essentialProperties,
             supplementalProperties);
     segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();
 
@@ -583,6 +607,7 @@ protected Format buildFormat(
       List<Descriptor> roleDescriptors,
       List<Descriptor> accessibilityDescriptors,
       @Nullable String codecs,
+      List<Descriptor> essentialProperties,
       List<Descriptor> supplementalProperties) {
     @Nullable String sampleMimeType = getSampleMimeType(containerMimeType, codecs);
     if (MimeTypes.AUDIO_E_AC3.equals(sampleMimeType)) {
@@ -591,6 +616,8 @@ protected Format buildFormat(
     @C.SelectionFlags int selectionFlags = parseSelectionFlagsFromRoleDescriptors(roleDescriptors);
     @C.RoleFlags int roleFlags = parseRoleFlagsFromRoleDescriptors(roleDescriptors);
     roleFlags |= parseRoleFlagsFromAccessibilityDescriptors(accessibilityDescriptors);
+    roleFlags |= parseRoleFlagsFromProperties(essentialProperties);
+    roleFlags |= parseRoleFlagsFromProperties(supplementalProperties);
 
     Format.Builder formatBuilder =
         new Format.Builder()
@@ -1185,6 +1212,18 @@ protected int parseRoleFlagsFromAccessibilityDescriptors(
     return result;
   }
 
+  @C.RoleFlags
+  protected int parseRoleFlagsFromProperties(List<Descriptor> accessibilityDescriptors) {
+    @C.RoleFlags int result = 0;
+    for (int i = 0; i < accessibilityDescriptors.size(); i++) {
+      Descriptor descriptor = accessibilityDescriptors.get(i);
+      if ("http://dashif.org/guidelines/trickmode".equalsIgnoreCase(descriptor.schemeIdUri)) {
+        result |= C.ROLE_FLAG_TRICK_PLAY;
+      }
+    }
+    return result;
+  }
+
   @C.RoleFlags
   protected int parseDashRoleSchemeValue(@Nullable String value) {
     if (value == null) {

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashMediaPeriodTest.java

@@ -165,6 +165,7 @@ private static AdaptationSet createAdaptationSet(
         trackType,
         Arrays.asList(representations),
         /* accessibilityDescriptors= */ Collections.emptyList(),
+        /* essentialProperties= */ Collections.emptyList(),
         descriptor == null ? Collections.emptyList() : Collections.singletonList(descriptor));
   }
 

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashUtilTest.java

@@ -29,6 +29,7 @@
 import com.google.android.exoplayer2.upstream.DummyDataSource;
 import com.google.android.exoplayer2.util.MimeTypes;
 import java.util.Arrays;
+import java.util.Collections;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -69,7 +70,13 @@ private static Period newPeriod(AdaptationSet... adaptationSets) {
   }
 
   private static AdaptationSet newAdaptationSet(Representation... representations) {
-    return new AdaptationSet(0, C.TRACK_TYPE_VIDEO, Arrays.asList(representations), null, null);
+    return new AdaptationSet(
+        /* id= */ 0,
+        C.TRACK_TYPE_VIDEO,
+        Arrays.asList(representations),
+        /* accessibilityDescriptors= */ Collections.emptyList(),
+        /* essentialProperties= */ Collections.emptyList(),
+        /* supplementalProperties= */ Collections.emptyList());
   }
 
   private static Representation newRepresentation(DrmInitData drmInitData) {

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParserTest.java

@@ -49,6 +49,7 @@ public class DashManifestParserTest {
   private static final String SAMPLE_MPD_LABELS = "mpd/sample_mpd_labels";
   private static final String SAMPLE_MPD_ASSET_IDENTIFIER = "mpd/sample_mpd_asset_identifier";
   private static final String SAMPLE_MPD_TEXT = "mpd/sample_mpd_text";
+  private static final String SAMPLE_MPD_TRICK_PLAY = "mpd/sample_mpd_trick_play";
 
   private static final String NEXT_TAG_NAME = "Next";
   private static final String NEXT_TAG = "<" + NEXT_TAG_NAME + "/>";
@@ -173,7 +174,7 @@ public void parseMediaPresentationDescription_programInformation() throws IOExce
     DashManifestParser parser = new DashManifestParser();
     DashManifest manifest =
         parser.parse(
-            Uri.parse("Https://example.com/test.mpd"),
+            Uri.parse("https://example.com/test.mpd"),
             TestUtil.getInputStream(ApplicationProvider.getApplicationContext(), SAMPLE_MPD));
     ProgramInformation expectedProgramInformation =
         new ProgramInformation(
@@ -201,7 +202,7 @@ public void parseMediaPresentationDescription_text() throws IOException {
     DashManifestParser parser = new DashManifestParser();
     DashManifest manifest =
         parser.parse(
-            Uri.parse("Https://example.com/test.mpd"),
+            Uri.parse("https://example.com/test.mpd"),
             TestUtil.getInputStream(ApplicationProvider.getApplicationContext(), SAMPLE_MPD_TEXT));
 
     List<AdaptationSet> adaptationSets = manifest.getPeriod(0).adaptationSets;
@@ -225,6 +226,46 @@ public void parseMediaPresentationDescription_text() throws IOException {
     assertThat(adaptationSets.get(2).type).isEqualTo(C.TRACK_TYPE_TEXT);
   }
 
+  @Test
+  public void parseMediaPresentationDescription_trickPlay() throws IOException {
+    DashManifestParser parser = new DashManifestParser();
+    DashManifest manifest =
+        parser.parse(
+            Uri.parse("https://example.com/test.mpd"),
+            TestUtil.getInputStream(
+                ApplicationProvider.getApplicationContext(), SAMPLE_MPD_TRICK_PLAY));
+
+    List<AdaptationSet> adaptationSets = manifest.getPeriod(0).adaptationSets;
+
+    AdaptationSet adaptationSet = adaptationSets.get(0);
+    assertThat(adaptationSet.essentialProperties).isEmpty();
+    assertThat(adaptationSet.supplementalProperties).isEmpty();
+    assertThat(adaptationSet.representations.get(0).format.roleFlags).isEqualTo(0);
+
+    adaptationSet = adaptationSets.get(1);
+    assertThat(adaptationSet.essentialProperties).isEmpty();
+    assertThat(adaptationSet.supplementalProperties).isEmpty();
+    assertThat(adaptationSet.representations.get(0).format.roleFlags).isEqualTo(0);
+
+    adaptationSet = adaptationSets.get(2);
+    assertThat(adaptationSet.essentialProperties).hasSize(1);
+    assertThat(adaptationSet.essentialProperties.get(0).schemeIdUri)
+        .isEqualTo("http://dashif.org/guidelines/trickmode");
+    assertThat(adaptationSet.essentialProperties.get(0).value).isEqualTo("0");
+    assertThat(adaptationSet.supplementalProperties).isEmpty();
+    assertThat(adaptationSet.representations.get(0).format.roleFlags)
+        .isEqualTo(C.ROLE_FLAG_TRICK_PLAY);
+
+    adaptationSet = adaptationSets.get(3);
+    assertThat(adaptationSet.essentialProperties).isEmpty();
+    assertThat(adaptationSet.supplementalProperties).hasSize(1);
+    assertThat(adaptationSet.supplementalProperties.get(0).schemeIdUri)
+        .isEqualTo("http://dashif.org/guidelines/trickmode");
+    assertThat(adaptationSet.supplementalProperties.get(0).value).isEqualTo("1");
+    assertThat(adaptationSet.representations.get(0).format.roleFlags)
+        .isEqualTo(C.ROLE_FLAG_TRICK_PLAY);
+  }
+
   @Test
   public void parseSegmentTimeline_repeatCount() throws Exception {
     DashManifestParser parser = new DashManifestParser();

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestTest.java

@@ -239,6 +239,12 @@ private static Period newPeriod(String id, int startMs, AdaptationSet... adaptat
   }
 
   private static AdaptationSet newAdaptationSet(int seed, Representation... representations) {
-    return new AdaptationSet(++seed, ++seed, Arrays.asList(representations), null, null);
+    return new AdaptationSet(
+        ++seed,
+        ++seed,
+        Arrays.asList(representations),
+        /* accessibilityDescriptors= */ Collections.emptyList(),
+        /* essentialProperties= */ Collections.emptyList(),
+        /* supplementalProperties= */ Collections.emptyList());
   }
 }

testdata/src/test/assets/mpd/sample_mpd_trick_play

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<MPD type="static" duration="1s" mediaPresentationDuration="PT1S">
+ <Period>
+  <SegmentTemplate startNumber="0" timescale="1000" media="sq/$Number$">
+   <SegmentTimeline>
+    <S d="1000"/>
+   </SegmentTimeline>
+  </SegmentTemplate>
+  <AdaptationSet id="0" mimeType="video/mp4" subsegmentAlignment="true">
+   <Representation id="0" codecs="avc1.42c01f" bandwidth="128000">
+    <BaseURL>https://test.com/0</BaseURL>
+   </Representation>
+  </AdaptationSet>
+  <AdaptationSet id="1" mimeType="video/mp4" subsegmentAlignment="true">
+   <Representation id="0" codecs="avc1.42c01f" bandwidth="128000">
+    <BaseURL>https://test.com/0</BaseURL>
+   </Representation>
+  </AdaptationSet>
+  <AdaptationSet id="2" mimeType="video/mp4" subsegmentAlignment="true">
+   <EssentialProperty schemeIdUri="http://dashif.org/guidelines/trickmode" value="0"/>
+   <Representation id="0" codecs="avc1.42c01f" bandwidth="128000">
+    <BaseURL>https://test.com/0</BaseURL>
+   </Representation>
+  </AdaptationSet>
+  <AdaptationSet id="3" mimeType="video/mp4" subsegmentAlignment="true">
+   <SupplementalProperty schemeIdUri="http://dashif.org/guidelines/trickmode" value="1"/>
+   <Representation id="0" codecs="avc1.42c01f" bandwidth="128000">
+    <BaseURL>https://test.com/0</BaseURL>
+   </Representation>
+  </AdaptationSet>
+ </Period>
+</MPD>