Examples with TimestampAdjuster androidx.media3.common.util.TimestampAdjuster used on opensource projects

Example 1 with TimestampAdjuster

use of androidx.media3.common.util.TimestampAdjuster in project media by androidx.

the class DefaultHlsExtractorFactory method createExtractor.

@Override
public BundledHlsMediaChunkExtractor createExtractor(Uri uri, Format format, @Nullable List<Format> muxedCaptionFormats, TimestampAdjuster timestampAdjuster, Map<String, List<String>> responseHeaders, ExtractorInput sniffingExtractorInput, PlayerId playerId) throws IOException {
    @FileTypes.Type int formatInferredFileType = FileTypes.inferFileTypeFromMimeType(format.sampleMimeType);
    @FileTypes.Type int responseHeadersInferredFileType = FileTypes.inferFileTypeFromResponseHeaders(responseHeaders);
    @FileTypes.Type int uriInferredFileType = FileTypes.inferFileTypeFromUri(uri);
    // Defines the order in which to try the extractors.
    List<Integer> fileTypeOrder = new ArrayList<>(/* initialCapacity= */
    DEFAULT_EXTRACTOR_ORDER.length);
    addFileTypeIfValidAndNotPresent(formatInferredFileType, fileTypeOrder);
    addFileTypeIfValidAndNotPresent(responseHeadersInferredFileType, fileTypeOrder);
    addFileTypeIfValidAndNotPresent(uriInferredFileType, fileTypeOrder);
    for (int fileType : DEFAULT_EXTRACTOR_ORDER) {
        addFileTypeIfValidAndNotPresent(fileType, fileTypeOrder);
    }
    // Extractor to be used if the type is not recognized.
    @Nullable Extractor fallBackExtractor = null;
    sniffingExtractorInput.resetPeekPosition();
    for (int i = 0; i < fileTypeOrder.size(); i++) {
        int fileType = fileTypeOrder.get(i);
        Extractor extractor = checkNotNull(createExtractorByFileType(fileType, format, muxedCaptionFormats, timestampAdjuster));
        if (sniffQuietly(extractor, sniffingExtractorInput)) {
            return new BundledHlsMediaChunkExtractor(extractor, format, timestampAdjuster);
        }
        if (fallBackExtractor == null && (fileType == formatInferredFileType || fileType == responseHeadersInferredFileType || fileType == uriInferredFileType || fileType == FileTypes.TS)) {
            // If sniffing fails, fallback to the file types inferred from context. If all else fails,
            // fallback to Transport Stream. See https://github.com/google/ExoPlayer/issues/8219.
            fallBackExtractor = extractor;
        }
    }
    return new BundledHlsMediaChunkExtractor(checkNotNull(fallBackExtractor), format, timestampAdjuster);
}

Example 2 with TimestampAdjuster

use of androidx.media3.common.util.TimestampAdjuster in project media by androidx.

the class HlsMediaChunk method createInstance.

/**
 * Creates a new instance.
 *
 * @param extractorFactory A {@link HlsExtractorFactory} from which the {@link
 *     HlsMediaChunkExtractor} is obtained.
 * @param dataSource The source from which the data should be loaded.
 * @param format The chunk format.
 * @param startOfPlaylistInPeriodUs The position of the playlist in the period in microseconds.
 * @param mediaPlaylist The media playlist from which this chunk was obtained.
 * @param segmentBaseHolder The segment holder.
 * @param playlistUrl The url of the playlist from which this chunk was obtained.
 * @param muxedCaptionFormats List of muxed caption {@link Format}s. Null if no closed caption
 *     information is available in the multivariant playlist.
 * @param trackSelectionReason See {@link #trackSelectionReason}.
 * @param trackSelectionData See {@link #trackSelectionData}.
 * @param isMasterTimestampSource True if the chunk can initialize the timestamp adjuster.
 * @param timestampAdjusterProvider The provider from which to obtain the {@link
 *     TimestampAdjuster}.
 * @param previousChunk The {@link HlsMediaChunk} that preceded this one. May be null.
 * @param mediaSegmentKey The media segment decryption key, if fully encrypted. Null otherwise.
 * @param initSegmentKey The initialization segment decryption key, if fully encrypted. Null
 *     otherwise.
 * @param shouldSpliceIn Whether samples for this chunk should be spliced into existing samples.
 */
public static HlsMediaChunk createInstance(HlsExtractorFactory extractorFactory, DataSource dataSource, Format format, long startOfPlaylistInPeriodUs, HlsMediaPlaylist mediaPlaylist, HlsChunkSource.SegmentBaseHolder segmentBaseHolder, Uri playlistUrl, @Nullable List<Format> muxedCaptionFormats, @C.SelectionReason int trackSelectionReason, @Nullable Object trackSelectionData, boolean isMasterTimestampSource, TimestampAdjusterProvider timestampAdjusterProvider, @Nullable HlsMediaChunk previousChunk, @Nullable byte[] mediaSegmentKey, @Nullable byte[] initSegmentKey, boolean shouldSpliceIn, PlayerId playerId) {
    // Media segment.
    HlsMediaPlaylist.SegmentBase mediaSegment = segmentBaseHolder.segmentBase;
    DataSpec dataSpec = new DataSpec.Builder().setUri(UriUtil.resolveToUri(mediaPlaylist.baseUri, mediaSegment.url)).setPosition(mediaSegment.byteRangeOffset).setLength(mediaSegment.byteRangeLength).setFlags(segmentBaseHolder.isPreload ? FLAG_MIGHT_NOT_USE_FULL_NETWORK_SPEED : 0).build();
    boolean mediaSegmentEncrypted = mediaSegmentKey != null;
    @Nullable byte[] mediaSegmentIv = mediaSegmentEncrypted ? getEncryptionIvArray(Assertions.checkNotNull(mediaSegment.encryptionIV)) : null;
    DataSource mediaDataSource = buildDataSource(dataSource, mediaSegmentKey, mediaSegmentIv);
    // Init segment.
    HlsMediaPlaylist.Segment initSegment = mediaSegment.initializationSegment;
    DataSpec initDataSpec = null;
    boolean initSegmentEncrypted = false;
    @Nullable DataSource initDataSource = null;
    if (initSegment != null) {
        initSegmentEncrypted = initSegmentKey != null;
        @Nullable byte[] initSegmentIv = initSegmentEncrypted ? getEncryptionIvArray(Assertions.checkNotNull(initSegment.encryptionIV)) : null;
        Uri initSegmentUri = UriUtil.resolveToUri(mediaPlaylist.baseUri, initSegment.url);
        initDataSpec = new DataSpec(initSegmentUri, initSegment.byteRangeOffset, initSegment.byteRangeLength);
        initDataSource = buildDataSource(dataSource, initSegmentKey, initSegmentIv);
    }
    long segmentStartTimeInPeriodUs = startOfPlaylistInPeriodUs + mediaSegment.relativeStartTimeUs;
    long segmentEndTimeInPeriodUs = segmentStartTimeInPeriodUs + mediaSegment.durationUs;
    int discontinuitySequenceNumber = mediaPlaylist.discontinuitySequence + mediaSegment.relativeDiscontinuitySequence;
    @Nullable HlsMediaChunkExtractor previousExtractor = null;
    Id3Decoder id3Decoder;
    ParsableByteArray scratchId3Data;
    if (previousChunk != null) {
        boolean isSameInitData = initDataSpec == previousChunk.initDataSpec || (initDataSpec != null && previousChunk.initDataSpec != null && initDataSpec.uri.equals(previousChunk.initDataSpec.uri) && initDataSpec.position == previousChunk.initDataSpec.position);
        boolean isFollowingChunk = playlistUrl.equals(previousChunk.playlistUrl) && previousChunk.loadCompleted;
        id3Decoder = previousChunk.id3Decoder;
        scratchId3Data = previousChunk.scratchId3Data;
        previousExtractor = isSameInitData && isFollowingChunk && !previousChunk.extractorInvalidated && previousChunk.discontinuitySequenceNumber == discontinuitySequenceNumber ? previousChunk.extractor : null;
    } else {
        id3Decoder = new Id3Decoder();
        scratchId3Data = new ParsableByteArray(Id3Decoder.ID3_HEADER_LENGTH);
    }
    return new HlsMediaChunk(extractorFactory, mediaDataSource, dataSpec, format, mediaSegmentEncrypted, initDataSource, initDataSpec, initSegmentEncrypted, playlistUrl, muxedCaptionFormats, trackSelectionReason, trackSelectionData, segmentStartTimeInPeriodUs, segmentEndTimeInPeriodUs, segmentBaseHolder.mediaSequence, segmentBaseHolder.partIndex, /* isPublished= */
    !segmentBaseHolder.isPreload, discontinuitySequenceNumber, mediaSegment.hasGapTag, isMasterTimestampSource, /* timestampAdjuster= */
    timestampAdjusterProvider.getAdjuster(discontinuitySequenceNumber), mediaSegment.drmInitData, previousExtractor, id3Decoder, scratchId3Data, shouldSpliceIn, playerId);
}

Example 3 with TimestampAdjuster

use of androidx.media3.common.util.TimestampAdjuster in project media by androidx.

the class HlsMediaChunk method prepareExtraction.

@RequiresNonNull("output")
@EnsuresNonNull("extractor")
private DefaultExtractorInput prepareExtraction(DataSource dataSource, DataSpec dataSpec, boolean initializeTimestampAdjuster) throws IOException {
    long bytesToRead = dataSource.open(dataSpec);
    if (initializeTimestampAdjuster) {
        try {
            timestampAdjuster.sharedInitializeOrWait(isMasterTimestampSource, startTimeUs);
        } catch (InterruptedException e) {
            throw new InterruptedIOException();
        }
    }
    DefaultExtractorInput extractorInput = new DefaultExtractorInput(dataSource, dataSpec.position, bytesToRead);
    if (extractor == null) {
        long id3Timestamp = peekId3PrivTimestamp(extractorInput);
        extractorInput.resetPeekPosition();
        extractor = previousExtractor != null ? previousExtractor.recreate() : extractorFactory.createExtractor(dataSpec.uri, trackFormat, muxedCaptionFormats, timestampAdjuster, dataSource.getResponseHeaders(), extractorInput, playerId);
        if (extractor.isPackedAudioExtractor()) {
            output.setSampleOffsetUs(id3Timestamp != C.TIME_UNSET ? timestampAdjuster.adjustTsTimestamp(id3Timestamp) : startTimeUs);
        } else {
            // In case the container format changes mid-stream to non-packed-audio, we need to reset
            // the timestamp offset.
            output.setSampleOffsetUs(/* sampleOffsetUs= */
            0L);
        }
        output.onNewExtractor();
        extractor.init(output);
    }
    output.setDrmInitData(drmInitData);
    return extractorInput;
}

Example 4 with TimestampAdjuster

use of androidx.media3.common.util.TimestampAdjuster in project media by androidx.

the class DefaultHlsExtractorFactoryTest method createExtractor_withFileTypeInFormat_returnsExtractorMatchingFormat.

@Test
public void createExtractor_withFileTypeInFormat_returnsExtractorMatchingFormat() throws Exception {
    ExtractorInput webVttExtractorInput = new FakeExtractorInput.Builder().setData(TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "media/webvtt/typical")).build();
    BundledHlsMediaChunkExtractor result = new DefaultHlsExtractorFactory().createExtractor(URI_WITH_TS_EXTENSION, webVttFormat, /* muxedCaptionFormats= */
    null, timestampAdjuster, ac3ResponseHeaders, webVttExtractorInput, PlayerId.UNSET);
    assertThat(result.extractor.getClass()).isEqualTo(WebvttExtractor.class);
}

Example 5 with TimestampAdjuster

use of androidx.media3.common.util.TimestampAdjuster in project media by androidx.

the class DefaultHlsExtractorFactoryTest method createExtractor_withFileTypeInUri_returnsExtractorMatchingUri.

@Test
public void createExtractor_withFileTypeInUri_returnsExtractorMatchingUri() throws Exception {
    ExtractorInput tsExtractorInput = new FakeExtractorInput.Builder().setData(TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), "media/ts/sample_ac3.ts")).build();
    BundledHlsMediaChunkExtractor result = new DefaultHlsExtractorFactory().createExtractor(URI_WITH_TS_EXTENSION, webVttFormat, /* muxedCaptionFormats= */
    null, timestampAdjuster, ac3ResponseHeaders, tsExtractorInput, PlayerId.UNSET);
    assertThat(result.extractor.getClass()).isEqualTo(TsExtractor.class);
}