Examples with AdaptationSet androidx.media3.exoplayer.dash.manifest.AdaptationSet used on opensource projects

Example 1 with AdaptationSet

use of androidx.media3.exoplayer.dash.manifest.AdaptationSet in project media by androidx.

the class DashMediaPeriod method getGroupedAdaptationSetIndices.

/**
 * Groups adaptation sets. Two adaptations sets belong to the same group if either:
 *
 * <ul>
 *   <li>One is a trick-play adaptation set and uses a {@code
 *       http://dashif.org/guidelines/trickmode} essential or supplemental property to indicate
 *       that the other is the main adaptation set to which it corresponds.
 *   <li>The two adaptation sets are marked as safe for switching using {@code
 *       urn:mpeg:dash:adaptation-set-switching:2016} supplemental properties.
 * </ul>
 *
 * @param adaptationSets The adaptation sets to merge.
 * @return An array of groups, where each group is an array of adaptation set indices.
 */
private static int[][] getGroupedAdaptationSetIndices(List<AdaptationSet> adaptationSets) {
    int adaptationSetCount = adaptationSets.size();
    SparseIntArray adaptationSetIdToIndex = new SparseIntArray(adaptationSetCount);
    List<List<Integer>> adaptationSetGroupedIndices = new ArrayList<>(adaptationSetCount);
    SparseArray<List<Integer>> adaptationSetIndexToGroupedIndices = new SparseArray<>(adaptationSetCount);
    // adaptationSetIdToIndex map.
    for (int i = 0; i < adaptationSetCount; i++) {
        adaptationSetIdToIndex.put(adaptationSets.get(i).id, i);
        List<Integer> initialGroup = new ArrayList<>();
        initialGroup.add(i);
        adaptationSetGroupedIndices.add(initialGroup);
        adaptationSetIndexToGroupedIndices.put(i, initialGroup);
    }
    // Merge adaptation set groups.
    for (int i = 0; i < adaptationSetCount; i++) {
        int mergedGroupIndex = i;
        AdaptationSet adaptationSet = adaptationSets.get(i);
        // Trick-play adaptation sets are merged with their corresponding main adaptation sets.
        @Nullable Descriptor trickPlayProperty = findTrickPlayProperty(adaptationSet.essentialProperties);
        if (trickPlayProperty == null) {
            // Trick-play can also be specified using a supplemental property.
            trickPlayProperty = findTrickPlayProperty(adaptationSet.supplementalProperties);
        }
        if (trickPlayProperty != null) {
            int mainAdaptationSetId = Integer.parseInt(trickPlayProperty.value);
            int mainAdaptationSetIndex = adaptationSetIdToIndex.get(mainAdaptationSetId, /* valueIfKeyNotFound= */
            -1);
            if (mainAdaptationSetIndex != -1) {
                mergedGroupIndex = mainAdaptationSetIndex;
            }
        }
        // merged group.
        if (mergedGroupIndex == i) {
            @Nullable Descriptor adaptationSetSwitchingProperty = findAdaptationSetSwitchingProperty(adaptationSet.supplementalProperties);
            if (adaptationSetSwitchingProperty != null) {
                String[] otherAdaptationSetIds = Util.split(adaptationSetSwitchingProperty.value, ",");
                for (String adaptationSetId : otherAdaptationSetIds) {
                    int otherAdaptationSetId = adaptationSetIdToIndex.get(Integer.parseInt(adaptationSetId), /* valueIfKeyNotFound= */
                    -1);
                    if (otherAdaptationSetId != -1) {
                        mergedGroupIndex = min(mergedGroupIndex, otherAdaptationSetId);
                    }
                }
            }
        }
        // Merge the groups if necessary.
        if (mergedGroupIndex != i) {
            List<Integer> thisGroup = adaptationSetIndexToGroupedIndices.get(i);
            List<Integer> mergedGroup = adaptationSetIndexToGroupedIndices.get(mergedGroupIndex);
            mergedGroup.addAll(thisGroup);
            adaptationSetIndexToGroupedIndices.put(i, mergedGroup);
            adaptationSetGroupedIndices.remove(thisGroup);
        }
    }
    int[][] groupedAdaptationSetIndices = new int[adaptationSetGroupedIndices.size()][];
    for (int i = 0; i < groupedAdaptationSetIndices.length; i++) {
        groupedAdaptationSetIndices[i] = Ints.toArray(adaptationSetGroupedIndices.get(i));
        // Restore the original adaptation set order within each group.
        Arrays.sort(groupedAdaptationSetIndices[i]);
    }
    return groupedAdaptationSetIndices;
}

Example 2 with AdaptationSet

use of androidx.media3.exoplayer.dash.manifest.AdaptationSet in project media by androidx.

the class DashMediaPeriod method getClosedCaptionTrackFormats.

private static Format[] getClosedCaptionTrackFormats(List<AdaptationSet> adaptationSets, int[] adaptationSetIndices) {
    for (int i : adaptationSetIndices) {
        AdaptationSet adaptationSet = adaptationSets.get(i);
        List<Descriptor> descriptors = adaptationSets.get(i).accessibilityDescriptors;
        for (int j = 0; j < descriptors.size(); j++) {
            Descriptor descriptor = descriptors.get(j);
            if ("urn:scte:dash:cc:cea-608:2015".equals(descriptor.schemeIdUri)) {
                Format cea608Format = new Format.Builder().setSampleMimeType(MimeTypes.APPLICATION_CEA608).setId(adaptationSet.id + ":cea608").build();
                return parseClosedCaptionDescriptor(descriptor, CEA608_SERVICE_DESCRIPTOR_REGEX, cea608Format);
            } else if ("urn:scte:dash:cc:cea-708:2015".equals(descriptor.schemeIdUri)) {
                Format cea708Format = new Format.Builder().setSampleMimeType(MimeTypes.APPLICATION_CEA708).setId(adaptationSet.id + ":cea708").build();
                return parseClosedCaptionDescriptor(descriptor, CEA708_SERVICE_DESCRIPTOR_REGEX, cea708Format);
            }
        }
    }
    return new Format[0];
}

Example 3 with AdaptationSet

use of androidx.media3.exoplayer.dash.manifest.AdaptationSet in project media by androidx.

the class DashMediaSource method getAvailableStartTimeInManifestUs.

private static long getAvailableStartTimeInManifestUs(Period period, long periodDurationUs, long nowUnixTimeUs) {
    long periodStartTimeInManifestUs = Util.msToUs(period.startMs);
    long availableStartTimeInManifestUs = periodStartTimeInManifestUs;
    boolean haveAudioVideoAdaptationSets = hasVideoOrAudioAdaptationSets(period);
    for (int i = 0; i < period.adaptationSets.size(); i++) {
        AdaptationSet adaptationSet = period.adaptationSets.get(i);
        List<Representation> representations = adaptationSet.representations;
        // or video adaptation set. See: https://github.com/google/ExoPlayer/issues/4029
        if ((haveAudioVideoAdaptationSets && adaptationSet.type == C.TRACK_TYPE_TEXT) || representations.isEmpty()) {
            continue;
        }
        @Nullable DashSegmentIndex index = representations.get(0).getIndex();
        if (index == null) {
            return periodStartTimeInManifestUs;
        }
        long availableSegmentCount = index.getAvailableSegmentCount(periodDurationUs, nowUnixTimeUs);
        if (availableSegmentCount == 0) {
            return periodStartTimeInManifestUs;
        }
        long firstAvailableSegmentNum = index.getFirstAvailableSegmentNum(periodDurationUs, nowUnixTimeUs);
        long adaptationSetAvailableStartTimeInManifestUs = periodStartTimeInManifestUs + index.getTimeUs(firstAvailableSegmentNum);
        availableStartTimeInManifestUs = max(availableStartTimeInManifestUs, adaptationSetAvailableStartTimeInManifestUs);
    }
    return availableStartTimeInManifestUs;
}

Example 4 with AdaptationSet

use of androidx.media3.exoplayer.dash.manifest.AdaptationSet in project media by androidx.

the class DashMediaPeriodTest method trickPlayProperty_mergesTrackGroups.

@Test
public void trickPlayProperty_mergesTrackGroups() throws IOException {
    DashManifest manifest = parseManifest("media/mpd/sample_mpd_trick_play_property");
    DashMediaPeriod dashMediaPeriod = createDashMediaPeriod(manifest, 0);
    List<AdaptationSet> adaptationSets = manifest.getPeriod(0).adaptationSets;
    // We expect the trick play adaptation sets to be merged with the ones to which they refer,
    // retaining representations in their original order.
    TrackGroupArray expectedTrackGroups = new TrackGroupArray(new TrackGroup(/* id= */
    "0", adaptationSets.get(0).representations.get(0).format, adaptationSets.get(0).representations.get(1).format, adaptationSets.get(1).representations.get(0).format), new TrackGroup(/* id= */
    "2", adaptationSets.get(2).representations.get(0).format, adaptationSets.get(2).representations.get(1).format, adaptationSets.get(3).representations.get(0).format));
    MediaPeriodAsserts.assertTrackGroups(dashMediaPeriod, expectedTrackGroups);
}

Example 5 with AdaptationSet

use of androidx.media3.exoplayer.dash.manifest.AdaptationSet in project media by androidx.

the class DashMediaPeriodTest method cea708AccessibilityDescriptor_createsCea708TrackGroup.

@Test
public void cea708AccessibilityDescriptor_createsCea708TrackGroup() throws IOException {
    DashManifest manifest = parseManifest("media/mpd/sample_mpd_cea_708_accessibility");
    DashMediaPeriod dashMediaPeriod = createDashMediaPeriod(manifest, 0);
    List<AdaptationSet> adaptationSets = manifest.getPeriod(0).adaptationSets;
    // We expect two adaptation sets. The first containing the video representations, and the second
    // containing the embedded CEA-708 tracks.
    Format.Builder cea608FormatBuilder = new Format.Builder().setSampleMimeType(MimeTypes.APPLICATION_CEA708);
    TrackGroupArray expectedTrackGroups = new TrackGroupArray(new TrackGroup(/* id= */
    "123", adaptationSets.get(0).representations.get(0).format, adaptationSets.get(0).representations.get(1).format), new TrackGroup(/* id= */
    "123:cc", cea608FormatBuilder.setId("123:cea708:1").setLanguage("eng").setAccessibilityChannel(1).build(), cea608FormatBuilder.setId("123:cea708:2").setLanguage("deu").setAccessibilityChannel(2).build()));
    MediaPeriodAsserts.assertTrackGroups(dashMediaPeriod, expectedTrackGroups);
}