mirror of
https://github.com/androidx/media.git
synced 2025-05-05 06:30:24 +08:00
Steps toward enabling seeking in DASH live
This commit is contained in:
Oliver Woodman
parent
8e58a3f5f5
commit
160a88baf9
@ -224,7 +224,8 @@ public class DashRendererBuilder implements RendererBuilder,
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DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
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ChunkSource videoChunkSource = new DashChunkSource(manifestFetcher,
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videoAdaptationSetIndex, videoRepresentationIndices, videoDataSource,
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new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS, elapsedRealtimeOffset);
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new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS, elapsedRealtimeOffset,
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mainHandler, player);
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ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
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VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, true, mainHandler, player,
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DemoPlayer.TYPE_VIDEO);
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@ -246,7 +247,7 @@ public class DashRendererBuilder implements RendererBuilder,
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format.audioSamplingRate + "Hz)");
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audioChunkSourceList.add(new DashChunkSource(manifestFetcher, audioAdaptationSetIndex,
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new int[] {i}, audioDataSource, audioEvaluator, LIVE_EDGE_LATENCY_MS,
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elapsedRealtimeOffset));
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elapsedRealtimeOffset, mainHandler, player));
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codecs.add(format.codecs);
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}
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@ -303,7 +304,8 @@ public class DashRendererBuilder implements RendererBuilder,
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Representation representation = representations.get(j);
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textTrackNameList.add(representation.format.id);
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textChunkSourceList.add(new DashChunkSource(manifestFetcher, i, new int[] {j},
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textDataSource, textEvaluator, LIVE_EDGE_LATENCY_MS, elapsedRealtimeOffset));
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textDataSource, textEvaluator, LIVE_EDGE_LATENCY_MS, elapsedRealtimeOffset,
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mainHandler, player));
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}
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}
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}
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@ -29,6 +29,7 @@ import com.google.android.exoplayer.audio.AudioTrack;
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import com.google.android.exoplayer.chunk.ChunkSampleSource;
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import com.google.android.exoplayer.chunk.Format;
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import com.google.android.exoplayer.chunk.MultiTrackChunkSource;
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import com.google.android.exoplayer.dash.DashChunkSource;
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import com.google.android.exoplayer.drm.StreamingDrmSessionManager;
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import com.google.android.exoplayer.hls.HlsSampleSource;
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import com.google.android.exoplayer.metadata.MetadataTrackRenderer.MetadataRenderer;
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@ -58,7 +59,7 @@ import java.util.concurrent.CopyOnWriteArrayList;
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public class DemoPlayer implements ExoPlayer.Listener, ChunkSampleSource.EventListener,
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HlsSampleSource.EventListener, DefaultBandwidthMeter.EventListener,
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MediaCodecVideoTrackRenderer.EventListener, MediaCodecAudioTrackRenderer.EventListener,
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StreamingDrmSessionManager.EventListener, TextRenderer,
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StreamingDrmSessionManager.EventListener, DashChunkSource.EventListener, TextRenderer,
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MetadataRenderer<Map<String, Object>>, DebugTextViewHelper.Provider {
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/**
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@ -552,6 +553,13 @@ public class DemoPlayer implements ExoPlayer.Listener, ChunkSampleSource.EventLi
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}
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}
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@Override
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public void onSeekRangeChanged(TimeRange seekRange) {
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if (infoListener != null) {
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infoListener.onSeekRangeChanged(seekRange);
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}
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}
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@Override
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public void onPlayWhenReadyCommitted() {
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// Do nothing.
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@ -18,6 +18,7 @@ package com.google.android.exoplayer.dash;
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import com.google.android.exoplayer.BehindLiveWindowException;
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import com.google.android.exoplayer.C;
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import com.google.android.exoplayer.MediaFormat;
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import com.google.android.exoplayer.TimeRange;
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import com.google.android.exoplayer.TrackInfo;
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import com.google.android.exoplayer.TrackRenderer;
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import com.google.android.exoplayer.chunk.Chunk;
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@ -50,6 +51,8 @@ import com.google.android.exoplayer.util.ManifestFetcher;
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import com.google.android.exoplayer.util.MimeTypes;
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import com.google.android.exoplayer.util.SystemClock;
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import android.os.Handler;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.Collections;
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@ -63,6 +66,20 @@ import java.util.List;
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*/
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public class DashChunkSource implements ChunkSource {
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/**
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* Interface definition for a callback to be notified of {@link DashChunkSource} events.
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*/
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public interface EventListener {
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/**
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* Invoked when the available seek range of the stream has changed.
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*
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* @param seekRange The range which specifies available content that can be seeked to.
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*/
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public void onSeekRangeChanged(TimeRange seekRange);
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}
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/**
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* Thrown when an AdaptationSet is missing from the MPD.
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*/
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@ -79,6 +96,9 @@ public class DashChunkSource implements ChunkSource {
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*/
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public static final int USE_ALL_TRACKS = -1;
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private final Handler eventHandler;
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private final EventListener eventListener;
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private final TrackInfo trackInfo;
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private final DataSource dataSource;
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private final FormatEvaluator formatEvaluator;
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@ -101,6 +121,12 @@ public class DashChunkSource implements ChunkSource {
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private boolean finishedCurrentManifest;
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private DrmInitData drmInitData;
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private TimeRange seekRange;
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private long[] seekRangeValues;
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private int firstAvailableSegmentNum;
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private int lastAvailableSegmentNum;
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private boolean startAtLiveEdge;
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private boolean lastChunkWasInitialization;
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private IOException fatalError;
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@ -142,7 +168,7 @@ public class DashChunkSource implements ChunkSource {
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public DashChunkSource(MediaPresentationDescription manifest, int adaptationSetIndex,
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int[] representationIndices, DataSource dataSource, FormatEvaluator formatEvaluator) {
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this(null, manifest, adaptationSetIndex, representationIndices, dataSource, formatEvaluator,
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new SystemClock(), 0, 0);
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new SystemClock(), 0, 0, false, null, null);
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}
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/**
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@ -167,19 +193,58 @@ public class DashChunkSource implements ChunkSource {
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* @param elapsedRealtimeOffsetMs If known, an estimate of the instantaneous difference between
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* server-side unix time and {@link SystemClock#elapsedRealtime()} in milliseconds, specified
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* as the server's unix time minus the local elapsed time. It unknown, set to 0.
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* @param eventHandler A handler to use when delivering events to {@code EventListener}. May be
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* null if delivery of events is not required.
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* @param eventListener A listener of events. May be null if delivery of events is not required.
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*/
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public DashChunkSource(ManifestFetcher<MediaPresentationDescription> manifestFetcher,
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int adaptationSetIndex, int[] representationIndices, DataSource dataSource,
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FormatEvaluator formatEvaluator, long liveEdgeLatencyMs, long elapsedRealtimeOffsetMs) {
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FormatEvaluator formatEvaluator, long liveEdgeLatencyMs, long elapsedRealtimeOffsetMs,
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Handler eventHandler, EventListener eventListener) {
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this(manifestFetcher, manifestFetcher.getManifest(), adaptationSetIndex, representationIndices,
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dataSource, formatEvaluator, new SystemClock(), liveEdgeLatencyMs * 1000,
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elapsedRealtimeOffsetMs * 1000);
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elapsedRealtimeOffsetMs * 1000, true, eventHandler, eventListener);
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}
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/**
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* Constructor to use for live DVR streaming.
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*
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* @param manifestFetcher A fetcher for the manifest, which must have already successfully
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* completed an initial load.
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* @param adaptationSetIndex The index of the adaptation set that should be used.
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* @param representationIndices The indices of the representations within the adaptations set
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* that should be used. May be null if all representations within the adaptation set should
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* be considered.
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* @param dataSource A {@link DataSource} suitable for loading the media data.
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* @param formatEvaluator Selects from the available formats.
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* @param liveEdgeLatencyMs For live streams, the number of milliseconds that the playback should
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* lag behind the "live edge" (i.e. the end of the most recently defined media in the
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* manifest). Choosing a small value will minimize latency introduced by the player, however
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* note that the value sets an upper bound on the length of media that the player can buffer.
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* Hence a small value may increase the probability of rebuffering and playback failures.
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* @param elapsedRealtimeOffsetMs If known, an estimate of the instantaneous difference between
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* server-side unix time and {@link SystemClock#elapsedRealtime()} in milliseconds, specified
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* as the server's unix time minus the local elapsed time. It unknown, set to 0.
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* @param startAtLiveEdge True if the stream should start at the live edge; false if it should
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* at the beginning of the live window.
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* @param eventHandler A handler to use when delivering events to {@code EventListener}. May be
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* null if delivery of events is not required.
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* @param eventListener A listener of events. May be null if delivery of events is not required.
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*/
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public DashChunkSource(ManifestFetcher<MediaPresentationDescription> manifestFetcher,
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int adaptationSetIndex, int[] representationIndices, DataSource dataSource,
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FormatEvaluator formatEvaluator, long liveEdgeLatencyMs, long elapsedRealtimeOffsetMs,
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boolean startAtLiveEdge, Handler eventHandler, EventListener eventListener) {
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this(manifestFetcher, manifestFetcher.getManifest(), adaptationSetIndex, representationIndices,
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dataSource, formatEvaluator, new SystemClock(), liveEdgeLatencyMs * 1000,
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elapsedRealtimeOffsetMs * 1000, startAtLiveEdge, eventHandler, eventListener);
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}
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/* package */ DashChunkSource(ManifestFetcher<MediaPresentationDescription> manifestFetcher,
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MediaPresentationDescription initialManifest, int adaptationSetIndex,
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int[] representationIndices, DataSource dataSource, FormatEvaluator formatEvaluator,
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Clock systemClock, long liveEdgeLatencyUs, long elapsedRealtimeOffsetUs) {
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Clock systemClock, long liveEdgeLatencyUs, long elapsedRealtimeOffsetUs,
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boolean startAtLiveEdge, Handler eventHandler, EventListener eventListener) {
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this.manifestFetcher = manifestFetcher;
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this.currentManifest = initialManifest;
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this.adaptationSetIndex = adaptationSetIndex;
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@ -189,8 +254,12 @@ public class DashChunkSource implements ChunkSource {
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this.systemClock = systemClock;
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this.liveEdgeLatencyUs = liveEdgeLatencyUs;
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this.elapsedRealtimeOffsetUs = elapsedRealtimeOffsetUs;
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this.startAtLiveEdge = startAtLiveEdge;
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this.eventHandler = eventHandler;
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this.eventListener = eventListener;
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this.evaluation = new Evaluation();
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this.headerBuilder = new StringBuilder();
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this.seekRangeValues = new long[2];
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drmInitData = getDrmInitData(currentManifest, adaptationSetIndex);
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Representation[] representations = getFilteredRepresentations(currentManifest,
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@ -229,6 +298,11 @@ public class DashChunkSource implements ChunkSource {
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return trackInfo;
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}
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// VisibleForTesting
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/* package */ TimeRange getSeekRange() {
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return seekRange;
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}
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@Override
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public void enable() {
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fatalError = null;
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@ -236,6 +310,16 @@ public class DashChunkSource implements ChunkSource {
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if (manifestFetcher != null) {
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manifestFetcher.enable();
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}
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DashSegmentIndex segmentIndex =
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representationHolders.get(formats[0].id).representation.getIndex();
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if (segmentIndex == null) {
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seekRange = new TimeRange(TimeRange.TYPE_SNAPSHOT, 0, currentManifest.duration * 1000);
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notifySeekRangeChanged(seekRange);
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} else {
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long nowUs = getNowUs();
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updateAvailableSegmentBounds(segmentIndex, nowUs);
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updateSeekRange(segmentIndex, nowUs);
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}
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}
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@Override
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@ -244,6 +328,7 @@ public class DashChunkSource implements ChunkSource {
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if (manifestFetcher != null) {
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manifestFetcher.disable();
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}
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seekRange = null;
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}
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@Override
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@ -285,6 +370,10 @@ public class DashChunkSource implements ChunkSource {
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}
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currentManifest = newManifest;
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finishedCurrentManifest = false;
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long nowUs = getNowUs();
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updateAvailableSegmentBounds(newRepresentations[0].getIndex(), nowUs);
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updateSeekRange(newRepresentations[0].getIndex(), nowUs);
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}
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// TODO: This is a temporary hack to avoid constantly refreshing the MPD in cases where
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@ -354,36 +443,41 @@ public class DashChunkSource implements ChunkSource {
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return;
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}
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long nowUs;
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if (elapsedRealtimeOffsetUs != 0) {
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nowUs = (systemClock.elapsedRealtime() * 1000) + elapsedRealtimeOffsetUs;
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} else {
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nowUs = System.currentTimeMillis() * 1000;
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}
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int firstAvailableSegmentNum = segmentIndex.getFirstSegmentNum();
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int lastAvailableSegmentNum = segmentIndex.getLastSegmentNum();
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boolean indexUnbounded = lastAvailableSegmentNum == DashSegmentIndex.INDEX_UNBOUNDED;
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if (indexUnbounded) {
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// The index is itself unbounded. We need to use the current time to calculate the range of
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// available segments.
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long liveEdgeTimestampUs = nowUs - currentManifest.availabilityStartTime * 1000;
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if (currentManifest.timeShiftBufferDepth != -1) {
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long bufferDepthUs = currentManifest.timeShiftBufferDepth * 1000;
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firstAvailableSegmentNum = Math.max(firstAvailableSegmentNum,
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segmentIndex.getSegmentNum(liveEdgeTimestampUs - bufferDepthUs));
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}
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// getSegmentNum(liveEdgeTimestampUs) will not be completed yet, so subtract one to get the
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// index of the last completed segment.
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lastAvailableSegmentNum = segmentIndex.getSegmentNum(liveEdgeTimestampUs) - 1;
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}
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int segmentNum;
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boolean indexUnbounded = segmentIndex.getLastSegmentNum() == DashSegmentIndex.INDEX_UNBOUNDED;
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if (indexUnbounded) {
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// Manifests with unbounded indexes aren't updated regularly, so we need to update the
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// segment bounds before use to ensure that they are accurate to the current time; also if
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// the bounds have changed, we should update the seek range
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long nowUs = getNowUs();
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int oldFirstAvailableSegmentNum = firstAvailableSegmentNum;
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int oldLastAvailableSegmentNum = lastAvailableSegmentNum;
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updateAvailableSegmentBounds(segmentIndex, nowUs);
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if (oldFirstAvailableSegmentNum != firstAvailableSegmentNum
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|| oldLastAvailableSegmentNum != lastAvailableSegmentNum) {
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updateSeekRange(segmentIndex, nowUs);
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}
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}
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if (queue.isEmpty()) {
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if (currentManifest.dynamic) {
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seekPositionUs = getLiveSeekPosition(nowUs, indexUnbounded, segmentIndex.isExplicit());
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seekRangeValues = seekRange.getCurrentBoundsUs(seekRangeValues);
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if (startAtLiveEdge) {
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// We want live streams to start at the live edge instead of the beginning of the
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// manifest
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startAtLiveEdge = false;
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seekPositionUs = seekRangeValues[1];
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} else {
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seekPositionUs = Math.max(seekPositionUs, seekRangeValues[0]);
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seekPositionUs = Math.min(seekPositionUs, seekRangeValues[1]);
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}
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}
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segmentNum = segmentIndex.getSegmentNum(seekPositionUs);
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// if the index is unbounded then the result of getSegmentNum isn't clamped to ensure that
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// it doesn't exceed the last available segment. Clamp it here.
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if (indexUnbounded) {
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segmentNum = Math.min(segmentNum, lastAvailableSegmentNum);
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}
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} else {
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MediaChunk previous = queue.get(out.queueSize - 1);
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segmentNum = previous.isLastChunk ? -1
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@ -452,6 +546,59 @@ public class DashChunkSource implements ChunkSource {
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// Do nothing.
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}
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private void updateAvailableSegmentBounds(DashSegmentIndex segmentIndex, long nowUs) {
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int indexFirstAvailableSegmentNum = segmentIndex.getFirstSegmentNum();
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int indexLastAvailableSegmentNum = segmentIndex.getLastSegmentNum();
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if (indexLastAvailableSegmentNum == DashSegmentIndex.INDEX_UNBOUNDED) {
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// The index is itself unbounded. We need to use the current time to calculate the range of
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// available segments.
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long liveEdgeTimestampUs = nowUs - currentManifest.availabilityStartTime * 1000;
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if (currentManifest.timeShiftBufferDepth != -1) {
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long bufferDepthUs = currentManifest.timeShiftBufferDepth * 1000;
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indexFirstAvailableSegmentNum = Math.max(indexFirstAvailableSegmentNum,
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segmentIndex.getSegmentNum(liveEdgeTimestampUs - bufferDepthUs));
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}
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// getSegmentNum(liveEdgeTimestampUs) will not be completed yet, so subtract one to get the
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// index of the last completed segment.
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indexLastAvailableSegmentNum = segmentIndex.getSegmentNum(liveEdgeTimestampUs) - 1;
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}
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firstAvailableSegmentNum = indexFirstAvailableSegmentNum;
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lastAvailableSegmentNum = indexLastAvailableSegmentNum;
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}
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private void updateSeekRange(DashSegmentIndex segmentIndex, long nowUs) {
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long earliestSeekPosition = segmentIndex.getTimeUs(firstAvailableSegmentNum);
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long latestSeekPosition = segmentIndex.getTimeUs(lastAvailableSegmentNum)
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+ segmentIndex.getDurationUs(lastAvailableSegmentNum);
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if (currentManifest.dynamic) {
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long liveEdgeTimestampUs;
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if (segmentIndex.getLastSegmentNum() == DashSegmentIndex.INDEX_UNBOUNDED) {
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liveEdgeTimestampUs = nowUs - currentManifest.availabilityStartTime * 1000;
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} else {
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liveEdgeTimestampUs = segmentIndex.getTimeUs(segmentIndex.getLastSegmentNum())
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+ segmentIndex.getDurationUs(segmentIndex.getLastSegmentNum());
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if (!segmentIndex.isExplicit()) {
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// Some segments defined by the index may not be available yet. Bound the calculated live
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// edge based on the elapsed time since the manifest became available.
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liveEdgeTimestampUs = Math.min(liveEdgeTimestampUs,
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nowUs - currentManifest.availabilityStartTime * 1000);
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}
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}
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// it's possible that the live edge latency actually puts our latest position before
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// the earliest position in the case of a DVR-like stream that's just starting up, so
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// in that case just return the earliest position instead
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latestSeekPosition = Math.max(earliestSeekPosition, liveEdgeTimestampUs - liveEdgeLatencyUs);
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}
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TimeRange newSeekRange = new TimeRange(TimeRange.TYPE_SNAPSHOT, earliestSeekPosition,
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latestSeekPosition);
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if (seekRange == null || !seekRange.equals(newSeekRange)) {
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seekRange = newSeekRange;
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notifySeekRangeChanged(seekRange);
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}
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}
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private static boolean mimeTypeIsWebm(String mimeType) {
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return mimeType.startsWith(MimeTypes.VIDEO_WEBM) || mimeType.startsWith(MimeTypes.AUDIO_WEBM);
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}
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@ -512,36 +659,12 @@ public class DashChunkSource implements ChunkSource {
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}
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}
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/**
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* For live playbacks, determines the seek position that snaps playback to be
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* {@link #liveEdgeLatencyUs} behind the live edge of the current manifest
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*
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* @param nowUs An estimate of the current server time, in microseconds.
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* @param indexUnbounded True if the segment index for this source is unbounded. False otherwise.
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* @param indexExplicit True if the segment index is explicit. False otherwise.
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* @return The seek position in microseconds.
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*/
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private long getLiveSeekPosition(long nowUs, boolean indexUnbounded, boolean indexExplicit) {
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long liveEdgeTimestampUs;
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if (indexUnbounded) {
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liveEdgeTimestampUs = nowUs - currentManifest.availabilityStartTime * 1000;
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private long getNowUs() {
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if (elapsedRealtimeOffsetUs != 0) {
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return (systemClock.elapsedRealtime() * 1000) + elapsedRealtimeOffsetUs;
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} else {
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liveEdgeTimestampUs = Long.MIN_VALUE;
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for (RepresentationHolder representationHolder : representationHolders.values()) {
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DashSegmentIndex segmentIndex = representationHolder.segmentIndex;
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int lastSegmentNum = segmentIndex.getLastSegmentNum();
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long indexLiveEdgeTimestampUs = segmentIndex.getTimeUs(lastSegmentNum)
|
||||
+ segmentIndex.getDurationUs(lastSegmentNum);
|
||||
liveEdgeTimestampUs = Math.max(liveEdgeTimestampUs, indexLiveEdgeTimestampUs);
|
||||
}
|
||||
if (!indexExplicit) {
|
||||
// Some segments defined by the index may not be available yet. Bound the calculated live
|
||||
// edge based on the elapsed time since the manifest became available.
|
||||
liveEdgeTimestampUs = Math.min(liveEdgeTimestampUs,
|
||||
nowUs - currentManifest.availabilityStartTime * 1000);
|
||||
}
|
||||
return System.currentTimeMillis() * 1000;
|
||||
}
|
||||
return liveEdgeTimestampUs - liveEdgeLatencyUs;
|
||||
}
|
||||
|
||||
private static Representation[] getFilteredRepresentations(MediaPresentationDescription manifest,
|
||||
@ -592,6 +715,17 @@ public class DashChunkSource implements ChunkSource {
|
||||
Collections.singletonList(period));
|
||||
}
|
||||
|
||||
private void notifySeekRangeChanged(final TimeRange seekRange) {
|
||||
if (eventHandler != null && eventListener != null) {
|
||||
eventHandler.post(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
eventListener.onSeekRangeChanged(seekRange);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
private static class RepresentationHolder {
|
||||
|
||||
public final Representation representation;
|
||||
|
||||
@ -15,9 +15,11 @@
|
||||
*/
|
||||
package com.google.android.exoplayer.dash;
|
||||
|
||||
import static org.mockito.Mockito.mock;
|
||||
import static org.mockito.Mockito.when;
|
||||
|
||||
import com.google.android.exoplayer.MediaFormat;
|
||||
import com.google.android.exoplayer.TimeRange;
|
||||
import com.google.android.exoplayer.TrackRenderer;
|
||||
import com.google.android.exoplayer.chunk.ChunkOperationHolder;
|
||||
import com.google.android.exoplayer.chunk.Format;
|
||||
@ -55,12 +57,19 @@ public class DashChunkSourceTest extends InstrumentationTestCase {
|
||||
|
||||
private static final FormatEvaluator EVALUATOR = new FixedEvaluator();
|
||||
|
||||
private static final long AVAILABILITY_START_TIME = 0;
|
||||
private static final long AVAILABILITY_LATENCY = 5000;
|
||||
private static final long AVAILABILITY_REALTIME_OFFSET = 1000;
|
||||
private static final long AVAILABILITY_CURRENT_TIME =
|
||||
AVAILABILITY_START_TIME + AVAILABILITY_LATENCY - AVAILABILITY_REALTIME_OFFSET;
|
||||
private static final FakeClock AVAILABILITY_CLOCK = new FakeClock(AVAILABILITY_CURRENT_TIME);
|
||||
private static final long VOD_DURATION_MS = 30000;
|
||||
|
||||
private static final long LIVE_SEGMENT_COUNT = 5;
|
||||
private static final long LIVE_SEGMENT_DURATION_MS = 1000;
|
||||
private static final long LIVE_DURATION_MS = LIVE_SEGMENT_COUNT * LIVE_SEGMENT_DURATION_MS;
|
||||
private static final long LIVE_TIMESHIFT_BUFFER_DEPTH_MS = LIVE_DURATION_MS;
|
||||
|
||||
private static final long AVAILABILITY_START_TIME_MS = 60000;
|
||||
private static final long AVAILABILITY_REALTIME_OFFSET_MS = 1000;
|
||||
private static final long AVAILABILITY_CURRENT_TIME_MS =
|
||||
AVAILABILITY_START_TIME_MS + LIVE_TIMESHIFT_BUFFER_DEPTH_MS - AVAILABILITY_REALTIME_OFFSET_MS;
|
||||
|
||||
private static final long LIVE_SEEK_BEYOND_EDGE_MS = 60000;
|
||||
|
||||
private static final int TALL_HEIGHT = 200;
|
||||
private static final int WIDE_WIDTH = 400;
|
||||
@ -90,6 +99,19 @@ public class DashChunkSourceTest extends InstrumentationTestCase {
|
||||
assertEquals(TALL_HEIGHT, out.getMaxVideoHeight());
|
||||
}
|
||||
|
||||
public void testGetSeekRangeOnVod() {
|
||||
DashChunkSource chunkSource = new DashChunkSource(generateVodMpd(), AdaptationSet.TYPE_VIDEO,
|
||||
null, null, mock(FormatEvaluator.class));
|
||||
chunkSource.enable();
|
||||
TimeRange seekRange = chunkSource.getSeekRange();
|
||||
|
||||
checkSeekRange(seekRange, 0, VOD_DURATION_MS * 1000);
|
||||
|
||||
long[] seekRangeValuesMs = seekRange.getCurrentBoundsMs(null);
|
||||
assertEquals(0, seekRangeValuesMs[0]);
|
||||
assertEquals(VOD_DURATION_MS, seekRangeValuesMs[1]);
|
||||
}
|
||||
|
||||
public void testMaxVideoDimensionsLegacy() {
|
||||
SingleSegmentBase segmentBase1 = new SingleSegmentBase("https://example.com/1.mp4");
|
||||
Representation representation1 =
|
||||
@ -107,221 +129,338 @@ public class DashChunkSourceTest extends InstrumentationTestCase {
|
||||
assertEquals(TALL_HEIGHT, out.getMaxVideoHeight());
|
||||
}
|
||||
|
||||
public void testLiveEdgeNoLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(0L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdgeNoLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 0;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 4000;
|
||||
long chunkEndTimeMs = 5000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge500msLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(500L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdgeAlmostNoLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 1;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 4000;
|
||||
long chunkEndTimeMs = 5000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge1000msLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(1000L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge500msLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 500;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 4000;
|
||||
long chunkEndTimeMs = 5000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge1001msLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(1001L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge1000msLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 1000;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 4000;
|
||||
long chunkEndTimeMs = 5000;
|
||||
|
||||
assertEquals(3000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge2500msLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(2500L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge1001msLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 1001;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 3000;
|
||||
long chunkEndTimeMs = 4000;
|
||||
|
||||
assertEquals(2000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(3000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdgeVeryHighLatencyWithTimeline() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTimelineTest(10000L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge2500msLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 2500;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 2000;
|
||||
long chunkEndTimeMs = 3000;
|
||||
|
||||
assertEquals(0L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(1000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdgeNoLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(0L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdgeVeryHighLatency() {
|
||||
long startTimeMs = 0;
|
||||
long liveEdgeLatencyMs = 10000;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 0;
|
||||
long seekRangeEndMs = 0;
|
||||
long chunkStartTimeMs = 0;
|
||||
long chunkEndTimeMs = 1000;
|
||||
|
||||
// this should actually return the "5th" segment, but it currently returns the "6th", which
|
||||
// doesn't actually exist yet; this will be resolved in a subsequent cl (cl/87518875).
|
||||
//assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
//assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdgeAlmostNoLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(1L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdgeNoLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 0;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 7000;
|
||||
long chunkEndTimeMs = 8000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge500msLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(500L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdgeAlmostNoLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 1;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 7000;
|
||||
long chunkEndTimeMs = 8000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge1000msLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(1000L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge500msLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 500;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 7000;
|
||||
long chunkEndTimeMs = 8000;
|
||||
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(5000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge1001msLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(1001L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge1000msLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 1000;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 7000;
|
||||
long chunkEndTimeMs = 8000;
|
||||
|
||||
assertEquals(3000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(4000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdge2500msLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(2500L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge1001msLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 1001;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 6000;
|
||||
long chunkEndTimeMs = 7000;
|
||||
|
||||
assertEquals(2000000L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(3000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdgeVeryHighLatencyWithTemplate() {
|
||||
DashChunkSource chunkSource = setupLiveEdgeTemplateTest(10000L);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
chunkSource.getChunkOperation(queue, 0, 0, out);
|
||||
public void testLiveEdge2500msLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 2500;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000 + LIVE_DURATION_MS - liveEdgeLatencyMs;
|
||||
long chunkStartTimeMs = 5000;
|
||||
long chunkEndTimeMs = 6000;
|
||||
|
||||
assertEquals(0L, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(1000000L, ((MediaChunk) out.chunk).endTimeUs);
|
||||
checkLiveTimelineConsistency(startTimeMs, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
public void testLiveEdgeVeryHighLatencyInProgress() {
|
||||
long startTimeMs = 3000;
|
||||
long liveEdgeLatencyMs = 10000;
|
||||
long seekPositionMs = LIVE_SEEK_BEYOND_EDGE_MS;
|
||||
long seekRangeStartMs = 3000;
|
||||
long seekRangeEndMs = 3000;
|
||||
long chunkStartTimeMs = 3000;
|
||||
long chunkEndTimeMs = 4000;
|
||||
|
||||
checkLiveEdgeLatencyWithTimeline(startTimeMs, 0, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
checkLiveEdgeLatencyWithTemplateAndUnlimitedTimeshift(startTimeMs, liveEdgeLatencyMs,
|
||||
seekPositionMs, 0, 0, 1000);
|
||||
checkLiveEdgeLatencyWithTemplateAndLimitedTimeshift(startTimeMs, liveEdgeLatencyMs,
|
||||
seekPositionMs, seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
private static Representation generateVodRepresentation(long startTimeMs, long duration,
|
||||
Format format) {
|
||||
SingleSegmentBase segmentBase = new SingleSegmentBase("https://example.com/1.mp4");
|
||||
return Representation.newInstance(startTimeMs, duration, null, 0, format, segmentBase);
|
||||
}
|
||||
|
||||
private static Representation generateSegmentTimelineRepresentation(long segmentStartMs,
|
||||
long periodStartMs, long duration) {
|
||||
List<SegmentTimelineElement> segmentTimeline = new ArrayList<>();
|
||||
List<RangedUri> mediaSegments = new ArrayList<>();
|
||||
long segmentStartTimeMs = segmentStartMs;
|
||||
long byteStart = 0;
|
||||
for (int i = 0; i < (duration / LIVE_SEGMENT_DURATION_MS); i++) {
|
||||
segmentTimeline.add(new SegmentTimelineElement(segmentStartTimeMs, LIVE_SEGMENT_DURATION_MS));
|
||||
mediaSegments.add(new RangedUri("", "", byteStart, 500L));
|
||||
segmentStartTimeMs += LIVE_SEGMENT_DURATION_MS;
|
||||
byteStart += 500;
|
||||
}
|
||||
|
||||
int startNumber = (int) ((periodStartMs + segmentStartMs) / LIVE_SEGMENT_DURATION_MS);
|
||||
MultiSegmentBase segmentBase = new SegmentList(null, 1000, 0,
|
||||
TrackRenderer.UNKNOWN_TIME_US, startNumber, TrackRenderer.UNKNOWN_TIME_US, segmentTimeline,
|
||||
mediaSegments);
|
||||
return Representation.newInstance(periodStartMs, TrackRenderer.UNKNOWN_TIME_US, null, 0,
|
||||
REGULAR_VIDEO, segmentBase);
|
||||
}
|
||||
|
||||
private static MediaPresentationDescription generateMpd(boolean live,
|
||||
List<Representation> representations) {
|
||||
List<Representation> representations, boolean limitTimeshiftBuffer) {
|
||||
Representation firstRepresentation = representations.get(0);
|
||||
AdaptationSet adaptationSet = new AdaptationSet(0, AdaptationSet.TYPE_UNKNOWN, representations);
|
||||
Period period = new Period(null, firstRepresentation.periodStartMs,
|
||||
firstRepresentation.periodDurationMs, Collections.singletonList(adaptationSet));
|
||||
long duration = (live) ? TrackRenderer.UNKNOWN_TIME_US
|
||||
: firstRepresentation.periodDurationMs - firstRepresentation.periodStartMs;
|
||||
return new MediaPresentationDescription(AVAILABILITY_START_TIME, duration, -1, live, -1, -1,
|
||||
null, null, Collections.singletonList(period));
|
||||
return new MediaPresentationDescription(AVAILABILITY_START_TIME_MS, duration, -1, live, -1,
|
||||
(limitTimeshiftBuffer) ? LIVE_TIMESHIFT_BUFFER_DEPTH_MS : -1, null, null,
|
||||
Collections.singletonList(period));
|
||||
}
|
||||
|
||||
private static MediaPresentationDescription generateVodMpd() {
|
||||
List<Representation> representations = new ArrayList<>();
|
||||
|
||||
SingleSegmentBase segmentBase1 = new SingleSegmentBase("https://example.com/1.mp4");
|
||||
Representation representation1 =
|
||||
Representation.newInstance(0, 0, null, 0, TALL_VIDEO, segmentBase1);
|
||||
representations.add(representation1);
|
||||
representations.add(generateVodRepresentation(0, VOD_DURATION_MS, TALL_VIDEO));
|
||||
representations.add(generateVodRepresentation(0, VOD_DURATION_MS, WIDE_VIDEO));
|
||||
|
||||
SingleSegmentBase segmentBase2 = new SingleSegmentBase("https://example.com/2.mp4");
|
||||
Representation representation2 =
|
||||
Representation.newInstance(0, 0, null, 0, WIDE_VIDEO, segmentBase2);
|
||||
representations.add(representation2);
|
||||
|
||||
return generateMpd(false, representations);
|
||||
return generateMpd(false, representations, false);
|
||||
}
|
||||
|
||||
private static MediaPresentationDescription generateLiveMpdWithTimeline() {
|
||||
List<Representation> representations = new ArrayList<>();
|
||||
|
||||
List<SegmentTimelineElement> segmentTimeline = new ArrayList<>();
|
||||
segmentTimeline.add(new SegmentTimelineElement(0L, 1000L));
|
||||
segmentTimeline.add(new SegmentTimelineElement(1000L, 1000L));
|
||||
segmentTimeline.add(new SegmentTimelineElement(2000L, 1000L));
|
||||
segmentTimeline.add(new SegmentTimelineElement(3000L, 1000L));
|
||||
segmentTimeline.add(new SegmentTimelineElement(4000L, 1000L));
|
||||
List<RangedUri> mediaSegments = new ArrayList<>();
|
||||
mediaSegments.add(new RangedUri("", "", 0L, 500L));
|
||||
mediaSegments.add(new RangedUri("", "", 500L, 500L));
|
||||
mediaSegments.add(new RangedUri("", "", 1000L, 500L));
|
||||
mediaSegments.add(new RangedUri("", "", 1500L, 500L));
|
||||
mediaSegments.add(new RangedUri("", "", 2000L, 500L));
|
||||
|
||||
MultiSegmentBase segmentBase = new SegmentList(null, 1000, 0,
|
||||
TrackRenderer.UNKNOWN_TIME_US, 1, TrackRenderer.UNKNOWN_TIME_US, segmentTimeline,
|
||||
mediaSegments);
|
||||
Representation representation = Representation.newInstance(0, TrackRenderer.UNKNOWN_TIME_US,
|
||||
null, 0, REGULAR_VIDEO, segmentBase);
|
||||
representations.add(representation);
|
||||
|
||||
return generateMpd(true, representations);
|
||||
private static MediaPresentationDescription generateLiveMpdWithTimeline(long segmentStartMs,
|
||||
long periodStartMs, long durationMs) {
|
||||
return generateMpd(true, Collections.singletonList(generateSegmentTimelineRepresentation(
|
||||
segmentStartMs, periodStartMs, durationMs)), false);
|
||||
}
|
||||
|
||||
private static MediaPresentationDescription generateLiveMpdWithTemplate() {
|
||||
private static MediaPresentationDescription generateLiveMpdWithTemplate(
|
||||
boolean limitTimeshiftBuffer) {
|
||||
List<Representation> representations = new ArrayList<>();
|
||||
|
||||
UrlTemplate initializationTemplate = null;
|
||||
UrlTemplate mediaTemplate = UrlTemplate.compile("$RepresentationID$/$Number$");
|
||||
MultiSegmentBase segmentBase = new SegmentTemplate(null, 1000, 0,
|
||||
TrackRenderer.UNKNOWN_TIME_US, 1, 1000, null,
|
||||
TrackRenderer.UNKNOWN_TIME_US, 0, LIVE_SEGMENT_DURATION_MS, null,
|
||||
initializationTemplate, mediaTemplate, "http://www.youtube.com");
|
||||
Representation representation = Representation.newInstance(0, TrackRenderer.UNKNOWN_TIME_US,
|
||||
null, 0, REGULAR_VIDEO, segmentBase);
|
||||
representations.add(representation);
|
||||
|
||||
return generateMpd(true, representations);
|
||||
return generateMpd(true, representations, limitTimeshiftBuffer);
|
||||
}
|
||||
|
||||
private DashChunkSource setupLiveEdgeTimelineTest(long liveEdgeLatencyMs) {
|
||||
MediaPresentationDescription manifest = generateLiveMpdWithTimeline();
|
||||
when(mockManifestFetcher.getManifest()).thenReturn(manifest);
|
||||
return new DashChunkSource(mockManifestFetcher, manifest, AdaptationSet.TYPE_VIDEO, null,
|
||||
mockDataSource, EVALUATOR, AVAILABILITY_CLOCK, liveEdgeLatencyMs * 1000,
|
||||
AVAILABILITY_REALTIME_OFFSET * 1000);
|
||||
private DashChunkSource setupDashChunkSource(MediaPresentationDescription mpd, long periodStartMs,
|
||||
long liveEdgeLatencyMs) {
|
||||
@SuppressWarnings("unchecked")
|
||||
ManifestFetcher<MediaPresentationDescription> manifestFetcher = mock(ManifestFetcher.class);
|
||||
when(manifestFetcher.getManifest()).thenReturn(mpd);
|
||||
DashChunkSource chunkSource = new DashChunkSource(manifestFetcher, mpd,
|
||||
AdaptationSet.TYPE_VIDEO, null, mockDataSource, EVALUATOR,
|
||||
new FakeClock(AVAILABILITY_CURRENT_TIME_MS + periodStartMs), liveEdgeLatencyMs * 1000,
|
||||
AVAILABILITY_REALTIME_OFFSET_MS * 1000, false, null, null);
|
||||
chunkSource.enable();
|
||||
return chunkSource;
|
||||
}
|
||||
|
||||
private DashChunkSource setupLiveEdgeTemplateTest(long liveEdgeLatencyMs) {
|
||||
MediaPresentationDescription manifest = generateLiveMpdWithTemplate();
|
||||
when(mockManifestFetcher.getManifest()).thenReturn(manifest);
|
||||
return new DashChunkSource(mockManifestFetcher, manifest, AdaptationSet.TYPE_VIDEO, null,
|
||||
mockDataSource, EVALUATOR, AVAILABILITY_CLOCK, liveEdgeLatencyMs * 1000,
|
||||
AVAILABILITY_REALTIME_OFFSET * 1000);
|
||||
private void checkSeekRange(TimeRange seekRange, long startTimeUs, long endTimeUs) {
|
||||
long[] seekRangeValuesUs = seekRange.getCurrentBoundsUs(null);
|
||||
assertEquals(startTimeUs, seekRangeValuesUs[0]);
|
||||
assertEquals(endTimeUs, seekRangeValuesUs[1]);
|
||||
}
|
||||
|
||||
private void checkLiveEdgeLatency(DashChunkSource chunkSource, List<MediaChunk> queue,
|
||||
ChunkOperationHolder out, long seekPositionMs, long seekRangeStartMs, long seekRangeEndMs,
|
||||
long chunkStartTimeMs, long chunkEndTimeMs) {
|
||||
chunkSource.getChunkOperation(queue, seekPositionMs * 1000, 0, out);
|
||||
TimeRange seekRange = chunkSource.getSeekRange();
|
||||
|
||||
assertNotNull(out.chunk);
|
||||
checkSeekRange(seekRange, seekRangeStartMs * 1000, seekRangeEndMs * 1000);
|
||||
assertEquals(chunkStartTimeMs * 1000, ((MediaChunk) out.chunk).startTimeUs);
|
||||
assertEquals(chunkEndTimeMs * 1000, ((MediaChunk) out.chunk).endTimeUs);
|
||||
}
|
||||
|
||||
private void checkLiveEdgeLatency(MediaPresentationDescription mpd, long periodStartMs,
|
||||
long liveEdgeLatencyMs, long seekPositionMs, long seekRangeStartMs, long seekRangeEndMs,
|
||||
long chunkStartTimeMs, long chunkEndTimeMs) {
|
||||
DashChunkSource chunkSource = setupDashChunkSource(mpd, periodStartMs, liveEdgeLatencyMs);
|
||||
List<MediaChunk> queue = new ArrayList<>();
|
||||
ChunkOperationHolder out = new ChunkOperationHolder();
|
||||
checkLiveEdgeLatency(chunkSource, queue, out, seekPositionMs, seekRangeStartMs, seekRangeEndMs,
|
||||
chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
private void checkLiveEdgeLatencyWithTimeline(long segmentStartMs, long periodStartMs,
|
||||
long liveEdgeLatencyMs, long seekPositionMs, long seekRangeStartMs, long seekRangeEndMs,
|
||||
long chunkStartTimeMs, long chunkEndTimeMs) {
|
||||
MediaPresentationDescription mpd = generateLiveMpdWithTimeline(segmentStartMs, periodStartMs,
|
||||
LIVE_DURATION_MS);
|
||||
checkLiveEdgeLatency(mpd, periodStartMs, liveEdgeLatencyMs, seekPositionMs, seekRangeStartMs,
|
||||
seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
private void checkLiveEdgeLatencyWithTemplateAndUnlimitedTimeshift(long startTimeMs,
|
||||
long liveEdgeLatencyMs, long seekPositionMs, long seekRangeEndMs,
|
||||
long chunkStartTimeMs, long chunkEndTimeMs) {
|
||||
MediaPresentationDescription mpd = generateLiveMpdWithTemplate(false);
|
||||
checkLiveEdgeLatency(mpd, startTimeMs, liveEdgeLatencyMs, seekPositionMs, 0, seekRangeEndMs,
|
||||
chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
private void checkLiveEdgeLatencyWithTemplateAndLimitedTimeshift(long startTimeMs,
|
||||
long liveEdgeLatencyMs, long seekPositionMs, long seekRangeStartMs, long seekRangeEndMs,
|
||||
long chunkStartTimeMs, long chunkEndTimeMs) {
|
||||
MediaPresentationDescription mpd = generateLiveMpdWithTemplate(true);
|
||||
checkLiveEdgeLatency(mpd, startTimeMs, liveEdgeLatencyMs, seekPositionMs, seekRangeStartMs,
|
||||
seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
private void checkLiveTimelineConsistency(long startTimeMs, long liveEdgeLatencyMs,
|
||||
long seekPositionMs, long seekRangeStartMs, long seekRangeEndMs, long chunkStartTimeMs,
|
||||
long chunkEndTimeMs) {
|
||||
checkLiveEdgeLatencyWithTimeline(startTimeMs, 0, liveEdgeLatencyMs, seekPositionMs,
|
||||
seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
checkLiveEdgeLatencyWithTemplateAndUnlimitedTimeshift(startTimeMs, liveEdgeLatencyMs,
|
||||
seekPositionMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
checkLiveEdgeLatencyWithTemplateAndLimitedTimeshift(startTimeMs, liveEdgeLatencyMs,
|
||||
seekPositionMs, seekRangeStartMs, seekRangeEndMs, chunkStartTimeMs, chunkEndTimeMs);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user