use of androidx.media3.exoplayer.hls.playlist.HlsMediaPlaylist in project media by androidx.
the class HlsChunkSource method getNextMediaSequenceAndPartIndex.
// Private methods.
/**
* Returns the media sequence number and part index to load next in the {@code mediaPlaylist}.
*
* @param previous The last (at least partially) loaded segment.
* @param switchingTrack Whether the segment to load is not preceded by a segment in the same
* track.
* @param mediaPlaylist The media playlist to which the segment to load belongs.
* @param startOfPlaylistInPeriodUs The start of {@code mediaPlaylist} relative to the period
* start in microseconds.
* @param loadPositionUs The current load position relative to the period start in microseconds.
* @return The media sequence and part index to load.
*/
private Pair<Long, Integer> getNextMediaSequenceAndPartIndex(@Nullable HlsMediaChunk previous, boolean switchingTrack, HlsMediaPlaylist mediaPlaylist, long startOfPlaylistInPeriodUs, long loadPositionUs) {
if (previous == null || switchingTrack) {
long endOfPlaylistInPeriodUs = startOfPlaylistInPeriodUs + mediaPlaylist.durationUs;
long targetPositionInPeriodUs = (previous == null || independentSegments) ? loadPositionUs : previous.startTimeUs;
if (!mediaPlaylist.hasEndTag && targetPositionInPeriodUs >= endOfPlaylistInPeriodUs) {
// If the playlist is too old to contain the chunk, we need to refresh it.
return new Pair<>(mediaPlaylist.mediaSequence + mediaPlaylist.segments.size(), /* partIndex */
C.INDEX_UNSET);
}
long targetPositionInPlaylistUs = targetPositionInPeriodUs - startOfPlaylistInPeriodUs;
int segmentIndexInPlaylist = Util.binarySearchFloor(mediaPlaylist.segments, /* value= */
targetPositionInPlaylistUs, /* inclusive= */
true, /* stayInBounds= */
!playlistTracker.isLive() || previous == null);
long mediaSequence = segmentIndexInPlaylist + mediaPlaylist.mediaSequence;
int partIndex = C.INDEX_UNSET;
if (segmentIndexInPlaylist >= 0) {
// In case we are inside the live window, we try to pick a part if available.
Segment segment = mediaPlaylist.segments.get(segmentIndexInPlaylist);
List<HlsMediaPlaylist.Part> parts = targetPositionInPlaylistUs < segment.relativeStartTimeUs + segment.durationUs ? segment.parts : mediaPlaylist.trailingParts;
for (int i = 0; i < parts.size(); i++) {
HlsMediaPlaylist.Part part = parts.get(i);
if (targetPositionInPlaylistUs < part.relativeStartTimeUs + part.durationUs) {
if (part.isIndependent) {
partIndex = i;
// Increase media sequence by one if the part is a trailing part.
mediaSequence += parts == mediaPlaylist.trailingParts ? 1 : 0;
}
break;
}
}
}
return new Pair<>(mediaSequence, partIndex);
}
// If loading has not completed, we return the previous chunk again.
return (previous.isLoadCompleted() ? new Pair<>(previous.partIndex == C.INDEX_UNSET ? previous.getNextChunkIndex() : previous.chunkIndex, previous.partIndex == C.INDEX_UNSET ? C.INDEX_UNSET : previous.partIndex + 1) : new Pair<>(previous.chunkIndex, previous.partIndex));
}
use of androidx.media3.exoplayer.hls.playlist.HlsMediaPlaylist in project media by androidx.
the class HlsMediaSource method onPrimaryPlaylistRefreshed.
@Override
public void onPrimaryPlaylistRefreshed(HlsMediaPlaylist mediaPlaylist) {
long windowStartTimeMs = mediaPlaylist.hasProgramDateTime ? Util.usToMs(mediaPlaylist.startTimeUs) : C.TIME_UNSET;
// For playlist types EVENT and VOD we know segments are never removed, so the presentation
// started at the same time as the window. Otherwise, we don't know the presentation start time.
long presentationStartTimeMs = mediaPlaylist.playlistType == HlsMediaPlaylist.PLAYLIST_TYPE_EVENT || mediaPlaylist.playlistType == HlsMediaPlaylist.PLAYLIST_TYPE_VOD ? windowStartTimeMs : C.TIME_UNSET;
// The multivariant playlist is non-null because the first playlist has been fetched by now.
HlsManifest manifest = new HlsManifest(checkNotNull(playlistTracker.getMultivariantPlaylist()), mediaPlaylist);
SinglePeriodTimeline timeline = playlistTracker.isLive() ? createTimelineForLive(mediaPlaylist, presentationStartTimeMs, windowStartTimeMs, manifest) : createTimelineForOnDemand(mediaPlaylist, presentationStartTimeMs, windowStartTimeMs, manifest);
refreshSourceInfo(timeline);
}
use of androidx.media3.exoplayer.hls.playlist.HlsMediaPlaylist in project media by androidx.
the class DefaultHlsPlaylistTracker method getLoadedPlaylistStartTimeUs.
private long getLoadedPlaylistStartTimeUs(@Nullable HlsMediaPlaylist oldPlaylist, HlsMediaPlaylist loadedPlaylist) {
if (loadedPlaylist.hasProgramDateTime) {
return loadedPlaylist.startTimeUs;
}
long primarySnapshotStartTimeUs = primaryMediaPlaylistSnapshot != null ? primaryMediaPlaylistSnapshot.startTimeUs : 0;
if (oldPlaylist == null) {
return primarySnapshotStartTimeUs;
}
int oldPlaylistSize = oldPlaylist.segments.size();
Segment firstOldOverlappingSegment = getFirstOldOverlappingSegment(oldPlaylist, loadedPlaylist);
if (firstOldOverlappingSegment != null) {
return oldPlaylist.startTimeUs + firstOldOverlappingSegment.relativeStartTimeUs;
} else if (oldPlaylistSize == loadedPlaylist.mediaSequence - oldPlaylist.mediaSequence) {
return oldPlaylist.getEndTimeUs();
} else {
// No segments overlap, we assume the new playlist start coincides with the primary playlist.
return primarySnapshotStartTimeUs;
}
}
use of androidx.media3.exoplayer.hls.playlist.HlsMediaPlaylist in project media by androidx.
the class DefaultHlsPlaylistTracker method onLoadCompleted.
// Loader.Callback implementation.
@Override
public void onLoadCompleted(ParsingLoadable<HlsPlaylist> loadable, long elapsedRealtimeMs, long loadDurationMs) {
HlsPlaylist result = loadable.getResult();
HlsMultivariantPlaylist multivariantPlaylist;
boolean isMediaPlaylist = result instanceof HlsMediaPlaylist;
if (isMediaPlaylist) {
multivariantPlaylist = HlsMultivariantPlaylist.createSingleVariantMultivariantPlaylist(result.baseUri);
} else /* result instanceof HlsMultivariantPlaylist */
{
multivariantPlaylist = (HlsMultivariantPlaylist) result;
}
this.multivariantPlaylist = multivariantPlaylist;
primaryMediaPlaylistUrl = multivariantPlaylist.variants.get(0).url;
// Add a temporary playlist listener for loading the first primary playlist.
listeners.add(new FirstPrimaryMediaPlaylistListener());
createBundles(multivariantPlaylist.mediaPlaylistUrls);
LoadEventInfo loadEventInfo = new LoadEventInfo(loadable.loadTaskId, loadable.dataSpec, loadable.getUri(), loadable.getResponseHeaders(), elapsedRealtimeMs, loadDurationMs, loadable.bytesLoaded());
MediaPlaylistBundle primaryBundle = playlistBundles.get(primaryMediaPlaylistUrl);
if (isMediaPlaylist) {
// We don't need to load the playlist again. We can use the same result.
primaryBundle.processLoadedPlaylist((HlsMediaPlaylist) result, loadEventInfo);
} else {
primaryBundle.loadPlaylist();
}
loadErrorHandlingPolicy.onLoadTaskConcluded(loadable.loadTaskId);
eventDispatcher.loadCompleted(loadEventInfo, C.DATA_TYPE_MANIFEST);
}
use of androidx.media3.exoplayer.hls.playlist.HlsMediaPlaylist in project media by androidx.
the class HlsPlaylistParser method parseMediaPlaylist.
private static HlsMediaPlaylist parseMediaPlaylist(HlsMultivariantPlaylist multivariantPlaylist, @Nullable HlsMediaPlaylist previousMediaPlaylist, LineIterator iterator, String baseUri) throws IOException {
@HlsMediaPlaylist.PlaylistType int playlistType = HlsMediaPlaylist.PLAYLIST_TYPE_UNKNOWN;
long startOffsetUs = C.TIME_UNSET;
long mediaSequence = 0;
// Default version == 1.
int version = 1;
long targetDurationUs = C.TIME_UNSET;
long partTargetDurationUs = C.TIME_UNSET;
boolean hasIndependentSegmentsTag = multivariantPlaylist.hasIndependentSegments;
boolean hasEndTag = false;
@Nullable Segment initializationSegment = null;
HashMap<String, String> variableDefinitions = new HashMap<>();
HashMap<String, Segment> urlToInferredInitSegment = new HashMap<>();
List<Segment> segments = new ArrayList<>();
List<Part> trailingParts = new ArrayList<>();
@Nullable Part preloadPart = null;
List<RenditionReport> renditionReports = new ArrayList<>();
List<String> tags = new ArrayList<>();
long segmentDurationUs = 0;
String segmentTitle = "";
boolean hasDiscontinuitySequence = false;
int playlistDiscontinuitySequence = 0;
int relativeDiscontinuitySequence = 0;
long playlistStartTimeUs = 0;
long segmentStartTimeUs = 0;
boolean preciseStart = false;
long segmentByteRangeOffset = 0;
long segmentByteRangeLength = C.LENGTH_UNSET;
long partStartTimeUs = 0;
long partByteRangeOffset = 0;
boolean isIFrameOnly = false;
long segmentMediaSequence = 0;
boolean hasGapTag = false;
HlsMediaPlaylist.ServerControl serverControl = new HlsMediaPlaylist.ServerControl(/* skipUntilUs= */
C.TIME_UNSET, /* canSkipDateRanges= */
false, /* holdBackUs= */
C.TIME_UNSET, /* partHoldBackUs= */
C.TIME_UNSET, /* canBlockReload= */
false);
@Nullable DrmInitData playlistProtectionSchemes = null;
@Nullable String fullSegmentEncryptionKeyUri = null;
@Nullable String fullSegmentEncryptionIV = null;
TreeMap<String, SchemeData> currentSchemeDatas = new TreeMap<>();
@Nullable String encryptionScheme = null;
@Nullable DrmInitData cachedDrmInitData = null;
String line;
while (iterator.hasNext()) {
line = iterator.next();
if (line.startsWith(TAG_PREFIX)) {
// We expose all tags through the playlist.
tags.add(line);
}
if (line.startsWith(TAG_PLAYLIST_TYPE)) {
String playlistTypeString = parseStringAttr(line, REGEX_PLAYLIST_TYPE, variableDefinitions);
if ("VOD".equals(playlistTypeString)) {
playlistType = HlsMediaPlaylist.PLAYLIST_TYPE_VOD;
} else if ("EVENT".equals(playlistTypeString)) {
playlistType = HlsMediaPlaylist.PLAYLIST_TYPE_EVENT;
}
} else if (line.equals(TAG_IFRAME)) {
isIFrameOnly = true;
} else if (line.startsWith(TAG_START)) {
startOffsetUs = (long) (parseDoubleAttr(line, REGEX_TIME_OFFSET) * C.MICROS_PER_SECOND);
preciseStart = parseOptionalBooleanAttribute(line, REGEX_PRECISE, /* defaultValue= */
false);
} else if (line.startsWith(TAG_SERVER_CONTROL)) {
serverControl = parseServerControl(line);
} else if (line.startsWith(TAG_PART_INF)) {
double partTargetDurationSeconds = parseDoubleAttr(line, REGEX_PART_TARGET_DURATION);
partTargetDurationUs = (long) (partTargetDurationSeconds * C.MICROS_PER_SECOND);
} else if (line.startsWith(TAG_INIT_SEGMENT)) {
String uri = parseStringAttr(line, REGEX_URI, variableDefinitions);
String byteRange = parseOptionalStringAttr(line, REGEX_ATTR_BYTERANGE, variableDefinitions);
if (byteRange != null) {
String[] splitByteRange = Util.split(byteRange, "@");
segmentByteRangeLength = Long.parseLong(splitByteRange[0]);
if (splitByteRange.length > 1) {
segmentByteRangeOffset = Long.parseLong(splitByteRange[1]);
}
}
if (segmentByteRangeLength == C.LENGTH_UNSET) {
// The segment has no byte range defined.
segmentByteRangeOffset = 0;
}
if (fullSegmentEncryptionKeyUri != null && fullSegmentEncryptionIV == null) {
// See RFC 8216, Section 4.3.2.5.
throw ParserException.createForMalformedManifest("The encryption IV attribute must be present when an initialization segment is" + " encrypted with METHOD=AES-128.", /* cause= */
null);
}
initializationSegment = new Segment(uri, segmentByteRangeOffset, segmentByteRangeLength, fullSegmentEncryptionKeyUri, fullSegmentEncryptionIV);
if (segmentByteRangeLength != C.LENGTH_UNSET) {
segmentByteRangeOffset += segmentByteRangeLength;
}
segmentByteRangeLength = C.LENGTH_UNSET;
} else if (line.startsWith(TAG_TARGET_DURATION)) {
targetDurationUs = parseIntAttr(line, REGEX_TARGET_DURATION) * C.MICROS_PER_SECOND;
} else if (line.startsWith(TAG_MEDIA_SEQUENCE)) {
mediaSequence = parseLongAttr(line, REGEX_MEDIA_SEQUENCE);
segmentMediaSequence = mediaSequence;
} else if (line.startsWith(TAG_VERSION)) {
version = parseIntAttr(line, REGEX_VERSION);
} else if (line.startsWith(TAG_DEFINE)) {
String importName = parseOptionalStringAttr(line, REGEX_IMPORT, variableDefinitions);
if (importName != null) {
String value = multivariantPlaylist.variableDefinitions.get(importName);
if (value != null) {
variableDefinitions.put(importName, value);
} else {
// The multivariant playlist does not declare the imported variable. Ignore.
}
} else {
variableDefinitions.put(parseStringAttr(line, REGEX_NAME, variableDefinitions), parseStringAttr(line, REGEX_VALUE, variableDefinitions));
}
} else if (line.startsWith(TAG_MEDIA_DURATION)) {
segmentDurationUs = parseTimeSecondsToUs(line, REGEX_MEDIA_DURATION);
segmentTitle = parseOptionalStringAttr(line, REGEX_MEDIA_TITLE, "", variableDefinitions);
} else if (line.startsWith(TAG_SKIP)) {
int skippedSegmentCount = parseIntAttr(line, REGEX_SKIPPED_SEGMENTS);
checkState(previousMediaPlaylist != null && segments.isEmpty());
int startIndex = (int) (mediaSequence - castNonNull(previousMediaPlaylist).mediaSequence);
int endIndex = startIndex + skippedSegmentCount;
if (startIndex < 0 || endIndex > previousMediaPlaylist.segments.size()) {
// Throw to force a reload if not all segments are available in the previous playlist.
throw new DeltaUpdateException();
}
for (int i = startIndex; i < endIndex; i++) {
Segment segment = previousMediaPlaylist.segments.get(i);
if (mediaSequence != previousMediaPlaylist.mediaSequence) {
// If the media sequences of the playlists are not the same, we need to recreate the
// object with the updated relative start time and the relative discontinuity
// sequence. With identical playlist media sequences these values do not change.
int newRelativeDiscontinuitySequence = previousMediaPlaylist.discontinuitySequence - playlistDiscontinuitySequence + segment.relativeDiscontinuitySequence;
segment = segment.copyWith(segmentStartTimeUs, newRelativeDiscontinuitySequence);
}
segments.add(segment);
segmentStartTimeUs += segment.durationUs;
partStartTimeUs = segmentStartTimeUs;
if (segment.byteRangeLength != C.LENGTH_UNSET) {
segmentByteRangeOffset = segment.byteRangeOffset + segment.byteRangeLength;
}
relativeDiscontinuitySequence = segment.relativeDiscontinuitySequence;
initializationSegment = segment.initializationSegment;
cachedDrmInitData = segment.drmInitData;
fullSegmentEncryptionKeyUri = segment.fullSegmentEncryptionKeyUri;
if (segment.encryptionIV == null || !segment.encryptionIV.equals(Long.toHexString(segmentMediaSequence))) {
fullSegmentEncryptionIV = segment.encryptionIV;
}
segmentMediaSequence++;
}
} else if (line.startsWith(TAG_KEY)) {
String method = parseStringAttr(line, REGEX_METHOD, variableDefinitions);
String keyFormat = parseOptionalStringAttr(line, REGEX_KEYFORMAT, KEYFORMAT_IDENTITY, variableDefinitions);
fullSegmentEncryptionKeyUri = null;
fullSegmentEncryptionIV = null;
if (METHOD_NONE.equals(method)) {
currentSchemeDatas.clear();
cachedDrmInitData = null;
} else /* !METHOD_NONE.equals(method) */
{
fullSegmentEncryptionIV = parseOptionalStringAttr(line, REGEX_IV, variableDefinitions);
if (KEYFORMAT_IDENTITY.equals(keyFormat)) {
if (METHOD_AES_128.equals(method)) {
// The segment is fully encrypted using an identity key.
fullSegmentEncryptionKeyUri = parseStringAttr(line, REGEX_URI, variableDefinitions);
} else {
// Do nothing. Samples are encrypted using an identity key, but this is not supported.
// Hopefully, a traditional DRM alternative is also provided.
}
} else {
if (encryptionScheme == null) {
encryptionScheme = parseEncryptionScheme(method);
}
SchemeData schemeData = parseDrmSchemeData(line, keyFormat, variableDefinitions);
if (schemeData != null) {
cachedDrmInitData = null;
currentSchemeDatas.put(keyFormat, schemeData);
}
}
}
} else if (line.startsWith(TAG_BYTERANGE)) {
String byteRange = parseStringAttr(line, REGEX_BYTERANGE, variableDefinitions);
String[] splitByteRange = Util.split(byteRange, "@");
segmentByteRangeLength = Long.parseLong(splitByteRange[0]);
if (splitByteRange.length > 1) {
segmentByteRangeOffset = Long.parseLong(splitByteRange[1]);
}
} else if (line.startsWith(TAG_DISCONTINUITY_SEQUENCE)) {
hasDiscontinuitySequence = true;
playlistDiscontinuitySequence = Integer.parseInt(line.substring(line.indexOf(':') + 1));
} else if (line.equals(TAG_DISCONTINUITY)) {
relativeDiscontinuitySequence++;
} else if (line.startsWith(TAG_PROGRAM_DATE_TIME)) {
if (playlistStartTimeUs == 0) {
long programDatetimeUs = Util.msToUs(Util.parseXsDateTime(line.substring(line.indexOf(':') + 1)));
playlistStartTimeUs = programDatetimeUs - segmentStartTimeUs;
}
} else if (line.equals(TAG_GAP)) {
hasGapTag = true;
} else if (line.equals(TAG_INDEPENDENT_SEGMENTS)) {
hasIndependentSegmentsTag = true;
} else if (line.equals(TAG_ENDLIST)) {
hasEndTag = true;
} else if (line.startsWith(TAG_RENDITION_REPORT)) {
long lastMediaSequence = parseOptionalLongAttr(line, REGEX_LAST_MSN, C.INDEX_UNSET);
int lastPartIndex = parseOptionalIntAttr(line, REGEX_LAST_PART, C.INDEX_UNSET);
String uri = parseStringAttr(line, REGEX_URI, variableDefinitions);
Uri playlistUri = Uri.parse(UriUtil.resolve(baseUri, uri));
renditionReports.add(new RenditionReport(playlistUri, lastMediaSequence, lastPartIndex));
} else if (line.startsWith(TAG_PRELOAD_HINT)) {
if (preloadPart != null) {
continue;
}
String type = parseStringAttr(line, REGEX_PRELOAD_HINT_TYPE, variableDefinitions);
if (!TYPE_PART.equals(type)) {
continue;
}
String url = parseStringAttr(line, REGEX_URI, variableDefinitions);
long byteRangeStart = parseOptionalLongAttr(line, REGEX_BYTERANGE_START, /* defaultValue= */
C.LENGTH_UNSET);
long byteRangeLength = parseOptionalLongAttr(line, REGEX_BYTERANGE_LENGTH, /* defaultValue= */
C.LENGTH_UNSET);
@Nullable String segmentEncryptionIV = getSegmentEncryptionIV(segmentMediaSequence, fullSegmentEncryptionKeyUri, fullSegmentEncryptionIV);
if (cachedDrmInitData == null && !currentSchemeDatas.isEmpty()) {
SchemeData[] schemeDatas = currentSchemeDatas.values().toArray(new SchemeData[0]);
cachedDrmInitData = new DrmInitData(encryptionScheme, schemeDatas);
if (playlistProtectionSchemes == null) {
playlistProtectionSchemes = getPlaylistProtectionSchemes(encryptionScheme, schemeDatas);
}
}
if (byteRangeStart == C.LENGTH_UNSET || byteRangeLength != C.LENGTH_UNSET) {
// Skip preload part if it is an unbounded range request.
preloadPart = new Part(url, initializationSegment, /* durationUs= */
0, relativeDiscontinuitySequence, partStartTimeUs, cachedDrmInitData, fullSegmentEncryptionKeyUri, segmentEncryptionIV, byteRangeStart != C.LENGTH_UNSET ? byteRangeStart : 0, byteRangeLength, /* hasGapTag= */
false, /* isIndependent= */
false, /* isPreload= */
true);
}
} else if (line.startsWith(TAG_PART)) {
@Nullable String segmentEncryptionIV = getSegmentEncryptionIV(segmentMediaSequence, fullSegmentEncryptionKeyUri, fullSegmentEncryptionIV);
String url = parseStringAttr(line, REGEX_URI, variableDefinitions);
long partDurationUs = (long) (parseDoubleAttr(line, REGEX_ATTR_DURATION) * C.MICROS_PER_SECOND);
boolean isIndependent = parseOptionalBooleanAttribute(line, REGEX_INDEPENDENT, /* defaultValue= */
false);
// The first part of a segment is always independent if the segments are independent.
isIndependent |= hasIndependentSegmentsTag && trailingParts.isEmpty();
boolean isGap = parseOptionalBooleanAttribute(line, REGEX_GAP, /* defaultValue= */
false);
@Nullable String byteRange = parseOptionalStringAttr(line, REGEX_ATTR_BYTERANGE, variableDefinitions);
long partByteRangeLength = C.LENGTH_UNSET;
if (byteRange != null) {
String[] splitByteRange = Util.split(byteRange, "@");
partByteRangeLength = Long.parseLong(splitByteRange[0]);
if (splitByteRange.length > 1) {
partByteRangeOffset = Long.parseLong(splitByteRange[1]);
}
}
if (partByteRangeLength == C.LENGTH_UNSET) {
partByteRangeOffset = 0;
}
if (cachedDrmInitData == null && !currentSchemeDatas.isEmpty()) {
SchemeData[] schemeDatas = currentSchemeDatas.values().toArray(new SchemeData[0]);
cachedDrmInitData = new DrmInitData(encryptionScheme, schemeDatas);
if (playlistProtectionSchemes == null) {
playlistProtectionSchemes = getPlaylistProtectionSchemes(encryptionScheme, schemeDatas);
}
}
trailingParts.add(new Part(url, initializationSegment, partDurationUs, relativeDiscontinuitySequence, partStartTimeUs, cachedDrmInitData, fullSegmentEncryptionKeyUri, segmentEncryptionIV, partByteRangeOffset, partByteRangeLength, isGap, isIndependent, /* isPreload= */
false));
partStartTimeUs += partDurationUs;
if (partByteRangeLength != C.LENGTH_UNSET) {
partByteRangeOffset += partByteRangeLength;
}
} else if (!line.startsWith("#")) {
@Nullable String segmentEncryptionIV = getSegmentEncryptionIV(segmentMediaSequence, fullSegmentEncryptionKeyUri, fullSegmentEncryptionIV);
segmentMediaSequence++;
String segmentUri = replaceVariableReferences(line, variableDefinitions);
@Nullable Segment inferredInitSegment = urlToInferredInitSegment.get(segmentUri);
if (segmentByteRangeLength == C.LENGTH_UNSET) {
// The segment has no byte range defined.
segmentByteRangeOffset = 0;
} else if (isIFrameOnly && initializationSegment == null && inferredInitSegment == null) {
// The segment is a resource byte range without an initialization segment.
// As per RFC 8216, Section 4.3.3.6, we assume the initialization section exists in the
// bytes preceding the first segment in this segment's URL.
// We assume the implicit initialization segment is unencrypted, since there's no way for
// the playlist to provide an initialization vector for it.
inferredInitSegment = new Segment(segmentUri, /* byteRangeOffset= */
0, segmentByteRangeOffset, /* fullSegmentEncryptionKeyUri= */
null, /* encryptionIV= */
null);
urlToInferredInitSegment.put(segmentUri, inferredInitSegment);
}
if (cachedDrmInitData == null && !currentSchemeDatas.isEmpty()) {
SchemeData[] schemeDatas = currentSchemeDatas.values().toArray(new SchemeData[0]);
cachedDrmInitData = new DrmInitData(encryptionScheme, schemeDatas);
if (playlistProtectionSchemes == null) {
playlistProtectionSchemes = getPlaylistProtectionSchemes(encryptionScheme, schemeDatas);
}
}
segments.add(new Segment(segmentUri, initializationSegment != null ? initializationSegment : inferredInitSegment, segmentTitle, segmentDurationUs, relativeDiscontinuitySequence, segmentStartTimeUs, cachedDrmInitData, fullSegmentEncryptionKeyUri, segmentEncryptionIV, segmentByteRangeOffset, segmentByteRangeLength, hasGapTag, trailingParts));
segmentStartTimeUs += segmentDurationUs;
partStartTimeUs = segmentStartTimeUs;
segmentDurationUs = 0;
segmentTitle = "";
trailingParts = new ArrayList<>();
if (segmentByteRangeLength != C.LENGTH_UNSET) {
segmentByteRangeOffset += segmentByteRangeLength;
}
segmentByteRangeLength = C.LENGTH_UNSET;
hasGapTag = false;
}
}
Map<Uri, RenditionReport> renditionReportMap = new HashMap<>();
for (int i = 0; i < renditionReports.size(); i++) {
RenditionReport renditionReport = renditionReports.get(i);
long lastMediaSequence = renditionReport.lastMediaSequence;
if (lastMediaSequence == C.INDEX_UNSET) {
lastMediaSequence = mediaSequence + segments.size() - (trailingParts.isEmpty() ? 1 : 0);
}
int lastPartIndex = renditionReport.lastPartIndex;
if (lastPartIndex == C.INDEX_UNSET && partTargetDurationUs != C.TIME_UNSET) {
List<Part> lastParts = trailingParts.isEmpty() ? Iterables.getLast(segments).parts : trailingParts;
lastPartIndex = lastParts.size() - 1;
}
renditionReportMap.put(renditionReport.playlistUri, new RenditionReport(renditionReport.playlistUri, lastMediaSequence, lastPartIndex));
}
if (preloadPart != null) {
trailingParts.add(preloadPart);
}
return new HlsMediaPlaylist(playlistType, baseUri, tags, startOffsetUs, preciseStart, playlistStartTimeUs, hasDiscontinuitySequence, playlistDiscontinuitySequence, mediaSequence, version, targetDurationUs, partTargetDurationUs, hasIndependentSegmentsTag, hasEndTag, /* hasProgramDateTime= */
playlistStartTimeUs != 0, playlistProtectionSchemes, segments, trailingParts, serverControl, renditionReportMap);
}
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