Examples with Representation com.google.android.exoplayer2.source.dash.manifest.Representation used on opensource projects

Example 6 with Representation

use of com.google.android.exoplayer2.source.dash.manifest.Representation in project ExoPlayer by google.

the class DefaultDashChunkSource method newMediaChunk.

private static Chunk newMediaChunk(RepresentationHolder representationHolder, DataSource dataSource, Format trackFormat, int trackSelectionReason, Object trackSelectionData, int firstSegmentNum, int maxSegmentCount) {
    Representation representation = representationHolder.representation;
    long startTimeUs = representationHolder.getSegmentStartTimeUs(firstSegmentNum);
    RangedUri segmentUri = representationHolder.getSegmentUrl(firstSegmentNum);
    String baseUrl = representation.baseUrl;
    if (representationHolder.extractorWrapper == null) {
        long endTimeUs = representationHolder.getSegmentEndTimeUs(firstSegmentNum);
        DataSpec dataSpec = new DataSpec(segmentUri.resolveUri(baseUrl), segmentUri.start, segmentUri.length, representation.getCacheKey());
        return new SingleSampleMediaChunk(dataSource, dataSpec, trackFormat, trackSelectionReason, trackSelectionData, startTimeUs, endTimeUs, firstSegmentNum, representationHolder.trackType, trackFormat);
    } else {
        int segmentCount = 1;
        for (int i = 1; i < maxSegmentCount; i++) {
            RangedUri nextSegmentUri = representationHolder.getSegmentUrl(firstSegmentNum + i);
            RangedUri mergedSegmentUri = segmentUri.attemptMerge(nextSegmentUri, baseUrl);
            if (mergedSegmentUri == null) {
                // Unable to merge segment fetches because the URIs do not merge.
                break;
            }
            segmentUri = mergedSegmentUri;
            segmentCount++;
        }
        long endTimeUs = representationHolder.getSegmentEndTimeUs(firstSegmentNum + segmentCount - 1);
        DataSpec dataSpec = new DataSpec(segmentUri.resolveUri(baseUrl), segmentUri.start, segmentUri.length, representation.getCacheKey());
        long sampleOffsetUs = -representation.presentationTimeOffsetUs;
        return new ContainerMediaChunk(dataSource, dataSpec, trackFormat, trackSelectionReason, trackSelectionData, startTimeUs, endTimeUs, firstSegmentNum, segmentCount, sampleOffsetUs, representationHolder.extractorWrapper);
    }
}

Example 7 with Representation

use of com.google.android.exoplayer2.source.dash.manifest.Representation in project ExoPlayer by google.

the class DashManifestParser method parseRepresentation.

// Representation parsing.
protected RepresentationInfo parseRepresentation(XmlPullParser xpp, String baseUrl, String adaptationSetMimeType, String adaptationSetCodecs, int adaptationSetWidth, int adaptationSetHeight, float adaptationSetFrameRate, int adaptationSetAudioChannels, int adaptationSetAudioSamplingRate, String adaptationSetLanguage, @C.SelectionFlags int adaptationSetSelectionFlags, List<SchemeValuePair> adaptationSetAccessibilityDescriptors, SegmentBase segmentBase) throws XmlPullParserException, IOException {
    String id = xpp.getAttributeValue(null, "id");
    int bandwidth = parseInt(xpp, "bandwidth", Format.NO_VALUE);
    String mimeType = parseString(xpp, "mimeType", adaptationSetMimeType);
    String codecs = parseString(xpp, "codecs", adaptationSetCodecs);
    int width = parseInt(xpp, "width", adaptationSetWidth);
    int height = parseInt(xpp, "height", adaptationSetHeight);
    float frameRate = parseFrameRate(xpp, adaptationSetFrameRate);
    int audioChannels = adaptationSetAudioChannels;
    int audioSamplingRate = parseInt(xpp, "audioSamplingRate", adaptationSetAudioSamplingRate);
    ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
    ArrayList<SchemeValuePair> inbandEventStreams = new ArrayList<>();
    boolean seenFirstBaseUrl = false;
    do {
        xpp.next();
        if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
            if (!seenFirstBaseUrl) {
                baseUrl = parseBaseUrl(xpp, baseUrl);
                seenFirstBaseUrl = true;
            }
        } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
            audioChannels = parseAudioChannelConfiguration(xpp);
        } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
            segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
        } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
            segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase);
        } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
            segmentBase = parseSegmentTemplate(xpp, (SegmentTemplate) segmentBase);
        } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
            SchemeData contentProtection = parseContentProtection(xpp);
            if (contentProtection != null) {
                drmSchemeDatas.add(contentProtection);
            }
        } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
            inbandEventStreams.add(parseInbandEventStream(xpp));
        }
    } while (!XmlPullParserUtil.isEndTag(xpp, "Representation"));
    Format format = buildFormat(id, mimeType, width, height, frameRate, audioChannels, audioSamplingRate, bandwidth, adaptationSetLanguage, adaptationSetSelectionFlags, adaptationSetAccessibilityDescriptors, codecs);
    segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();
    return new RepresentationInfo(format, baseUrl, segmentBase, drmSchemeDatas, inbandEventStreams);
}

Example 8 with Representation

use of com.google.android.exoplayer2.source.dash.manifest.Representation in project ExoPlayer by google.

the class DashManifestParser method buildRepresentation.

protected Representation buildRepresentation(RepresentationInfo representationInfo, String contentId, ArrayList<SchemeData> extraDrmSchemeDatas, ArrayList<SchemeValuePair> extraInbandEventStreams) {
    Format format = representationInfo.format;
    ArrayList<SchemeData> drmSchemeDatas = representationInfo.drmSchemeDatas;
    drmSchemeDatas.addAll(extraDrmSchemeDatas);
    if (!drmSchemeDatas.isEmpty()) {
        format = format.copyWithDrmInitData(new DrmInitData(drmSchemeDatas));
    }
    ArrayList<SchemeValuePair> inbandEventStremas = representationInfo.inbandEventStreams;
    inbandEventStremas.addAll(extraInbandEventStreams);
    return Representation.newInstance(contentId, Representation.REVISION_ID_DEFAULT, format, representationInfo.baseUrl, representationInfo.segmentBase, inbandEventStremas);
}

Example 9 with Representation

use of com.google.android.exoplayer2.source.dash.manifest.Representation in project ExoPlayer by google.

the class DashMediaPeriod method buildTrackGroups.

// Internal methods.
private static Pair<TrackGroupArray, EmbeddedTrackInfo[]> buildTrackGroups(List<AdaptationSet> adaptationSets) {
    int adaptationSetCount = adaptationSets.size();
    int embeddedTrackCount = getEmbeddedTrackCount(adaptationSets);
    TrackGroup[] trackGroupArray = new TrackGroup[adaptationSetCount + embeddedTrackCount];
    EmbeddedTrackInfo[] embeddedTrackInfos = new EmbeddedTrackInfo[embeddedTrackCount];
    int embeddedTrackIndex = 0;
    for (int i = 0; i < adaptationSetCount; i++) {
        AdaptationSet adaptationSet = adaptationSets.get(i);
        List<Representation> representations = adaptationSet.representations;
        Format[] formats = new Format[representations.size()];
        for (int j = 0; j < formats.length; j++) {
            formats[j] = representations.get(j).format;
        }
        trackGroupArray[i] = new TrackGroup(formats);
        if (hasEventMessageTrack(adaptationSet)) {
            Format format = Format.createSampleFormat(adaptationSet.id + ":emsg", MimeTypes.APPLICATION_EMSG, null, Format.NO_VALUE, null);
            trackGroupArray[adaptationSetCount + embeddedTrackIndex] = new TrackGroup(format);
            embeddedTrackInfos[embeddedTrackIndex++] = new EmbeddedTrackInfo(i, C.TRACK_TYPE_METADATA);
        }
        if (hasCea608Track(adaptationSet)) {
            Format format = Format.createTextSampleFormat(adaptationSet.id + ":cea608", MimeTypes.APPLICATION_CEA608, null, Format.NO_VALUE, 0, null, null);
            trackGroupArray[adaptationSetCount + embeddedTrackIndex] = new TrackGroup(format);
            embeddedTrackInfos[embeddedTrackIndex++] = new EmbeddedTrackInfo(i, C.TRACK_TYPE_TEXT);
        }
    }
    return Pair.create(new TrackGroupArray(trackGroupArray), embeddedTrackInfos);
}

Example 10 with Representation

use of com.google.android.exoplayer2.source.dash.manifest.Representation in project ExoPlayer by google.

the class DashUtil method loadInitializationData.

/**
   * Loads initialization data for the {@code representation} and optionally index data then
   * returns a {@link ChunkExtractorWrapper} which contains the output.
   *
   * @param dataSource The source from which the data should be loaded.
   * @param representation The representation which initialization chunk belongs to.
   * @param loadIndex Whether to load index data too.
   * @return A {@link ChunkExtractorWrapper} for the {@code representation}, or null if no
   *     initialization or (if requested) index data exists.
   * @throws IOException Thrown when there is an error while loading.
   * @throws InterruptedException Thrown if the thread was interrupted.
   */
private static ChunkExtractorWrapper loadInitializationData(DataSource dataSource, Representation representation, boolean loadIndex) throws IOException, InterruptedException {
    RangedUri initializationUri = representation.getInitializationUri();
    if (initializationUri == null) {
        return null;
    }
    ChunkExtractorWrapper extractorWrapper = newWrappedExtractor(representation.format);
    RangedUri requestUri;
    if (loadIndex) {
        RangedUri indexUri = representation.getIndexUri();
        if (indexUri == null) {
            return null;
        }
        // It's common for initialization and index data to be stored adjacently. Attempt to merge
        // the two requests together to request both at once.
        requestUri = initializationUri.attemptMerge(indexUri, representation.baseUrl);
        if (requestUri == null) {
            loadInitializationData(dataSource, representation, extractorWrapper, initializationUri);
            requestUri = indexUri;
        }
    } else {
        requestUri = initializationUri;
    }
    loadInitializationData(dataSource, representation, extractorWrapper, requestUri);
    return extractorWrapper;
}