docs/doc/reference/com/google/android/exoplayer2/testutil/FakeChunkSource.html
Package com.google.android.exoplayer2.testutil
All Implemented Interfaces:ChunkSource
public classFakeChunkSourceextends[Object](https://developer.android.com/reference/java/lang/Object.html "class or interface in java.lang")implements[ChunkSource](../source/chunk/ChunkSource.html "interface in com.google.android.exoplayer2.source.chunk")
Fake ChunkSource with adaptive media chunks of a given duration.
Nested Classes | Modifier and Type | Class | Description |
| --- | --- | --- |
| static class | FakeChunkSource.Factory |
Factory for a FakeChunkSource.
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Constructors | Constructor | Description |
| --- | --- |
| FakeChunkSource(ExoTrackSelection trackSelection, DataSource dataSource, FakeAdaptiveDataSet dataSet) | |
All Methods Instance Methods Concrete Methods | Modifier and Type | Method | Description |
| --- | --- | --- |
| long | getAdjustedSeekPositionUs(long positionUs, SeekParameters seekParameters) |
Adjusts a seek position given the specified SeekParameters.
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| void | getNextChunk(long playbackPositionUs, long loadPositionUs, List<? extends MediaChunk> queue, ChunkHolder out) |
Returns the next chunk to load.
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| int | getPreferredQueueSize(long playbackPositionUs, List<? extends MediaChunk> queue) |
Evaluates whether MediaChunks should be removed from the back of the queue.
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| void | maybeThrowError() |
If the source is currently having difficulty providing chunks, then this method throws the underlying error.
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| void | onChunkLoadCompleted(Chunk chunk) |
Called when the ChunkSampleStream has finished loading a chunk obtained from this source.
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| boolean | onChunkLoadError(Chunk chunk, boolean cancelable, LoadErrorHandlingPolicy.LoadErrorInfo loadErrorInfo, LoadErrorHandlingPolicy loadErrorHandlingPolicy) |
Called when the ChunkSampleStream encounters an error loading a chunk obtained from this source.
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| void | release() |
Releases any held resources.
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| boolean | shouldCancelLoad(long playbackPositionUs, Chunk loadingChunk, List<? extends MediaChunk> queue) |
Returns whether an ongoing load of a chunk should be canceled.
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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public FakeChunkSource([ExoTrackSelection](../trackselection/ExoTrackSelection.html "interface in com.google.android.exoplayer2.trackselection")trackSelection,[DataSource](../upstream/DataSource.html "interface in com.google.android.exoplayer2.upstream")dataSource,[FakeAdaptiveDataSet](FakeAdaptiveDataSet.html "class in com.google.android.exoplayer2.testutil")dataSet)
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public long getAdjustedSeekPositionUs(long positionUs,[SeekParameters](../SeekParameters.html "class in com.google.android.exoplayer2")seekParameters)
Description copied from interface: ChunkSource
Adjusts a seek position given the specified SeekParameters. Chunk boundaries are used as sync points.
Specified by:getAdjustedSeekPositionUs in interface ChunkSourceParameters:positionUs - The seek position in microseconds.seekParameters - Parameters that control how the seek is performed.Returns:The adjusted seek position, in microseconds.
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public void maybeThrowError()
Description copied from interface: ChunkSource
If the source is currently having difficulty providing chunks, then this method throws the underlying error. Otherwise does nothing.
Specified by:maybeThrowError in interface ChunkSource
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public int getPreferredQueueSize(long playbackPositionUs,[List](https://developer.android.com/reference/java/util/List.html "class or interface in java.util")<? extends[MediaChunk](../source/chunk/MediaChunk.html "class in com.google.android.exoplayer2.source.chunk")> queue)
Description copied from interface: ChunkSource
Evaluates whether MediaChunks should be removed from the back of the queue.
Removing MediaChunks from the back of the queue can be useful if they could be replaced with chunks of a significantly higher quality (e.g. because the available bandwidth has substantially increased).
Will only be called if no MediaChunk in the queue is currently loading.
Specified by:getPreferredQueueSize in interface ChunkSourceParameters:playbackPositionUs - The current playback position, in microseconds.queue - The queue of buffered MediaChunks.Returns:The preferred queue size.
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public boolean shouldCancelLoad(long playbackPositionUs,[Chunk](../source/chunk/Chunk.html "class in com.google.android.exoplayer2.source.chunk")loadingChunk,[List](https://developer.android.com/reference/java/util/List.html "class or interface in java.util")<? extends[MediaChunk](../source/chunk/MediaChunk.html "class in com.google.android.exoplayer2.source.chunk")> queue)
Description copied from interface: ChunkSource
Returns whether an ongoing load of a chunk should be canceled.
Specified by:shouldCancelLoad in interface ChunkSourceParameters:playbackPositionUs - The current playback position, in microseconds.loadingChunk - The currently loading Chunk.queue - The queue of buffered MediaChunks.Returns:Whether the ongoing load of loadingChunk should be canceled.
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public void getNextChunk(long playbackPositionUs,
long loadPositionUs,[List](https://developer.android.com/reference/java/util/List.html "class or interface in java.util")<? extends[MediaChunk](../source/chunk/MediaChunk.html "class in com.google.android.exoplayer2.source.chunk")> queue,[ChunkHolder](../source/chunk/ChunkHolder.html "class in com.google.android.exoplayer2.source.chunk")out)
Description copied from interface: ChunkSource
Returns the next chunk to load.
If a chunk is available then ChunkHolder.chunk is set. If the end of the stream has been reached then ChunkHolder.endOfStream is set. If a chunk is not available but the end of the stream has not been reached, the ChunkHolder is not modified.
Specified by:getNextChunk in interface ChunkSourceParameters:playbackPositionUs - The current playback position in microseconds. If playback of the period to which this chunk source belongs has not yet started, the value will be the starting position in the period minus the duration of any media in previous periods still to be played.loadPositionUs - The current load position in microseconds. If queue is empty, this is the starting position from which chunks should be provided. Else it's equal to Chunk.endTimeUs of the last chunk in the queue.queue - The queue of buffered MediaChunks.out - A holder to populate.
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public void onChunkLoadCompleted([Chunk](../source/chunk/Chunk.html "class in com.google.android.exoplayer2.source.chunk")chunk)
Description copied from interface: ChunkSource
Called when the ChunkSampleStream has finished loading a chunk obtained from this source.
Specified by:onChunkLoadCompleted in interface ChunkSourceParameters:chunk - The chunk whose load has been completed.
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public boolean onChunkLoadError([Chunk](../source/chunk/Chunk.html "class in com.google.android.exoplayer2.source.chunk")chunk,
boolean cancelable,[LoadErrorHandlingPolicy.LoadErrorInfo](../upstream/LoadErrorHandlingPolicy.LoadErrorInfo.html "class in com.google.android.exoplayer2.upstream")loadErrorInfo,[LoadErrorHandlingPolicy](../upstream/LoadErrorHandlingPolicy.html "interface in com.google.android.exoplayer2.upstream")loadErrorHandlingPolicy)
Description copied from interface: ChunkSource
Called when the ChunkSampleStream encounters an error loading a chunk obtained from this source.
Specified by:onChunkLoadError in interface ChunkSourceParameters:chunk - The chunk whose load encountered the error.cancelable - Whether the load can be canceled.loadErrorInfo - The load error info.loadErrorHandlingPolicy - The load error handling policy to customize the behaviour of handling the load error.Returns:Whether the load should be canceled so that a replacement chunk can be loaded instead. Must be false if cancelable is false. If true, ChunkSource.getNextChunk(long, long, List, ChunkHolder) will be called to obtain the replacement chunk.
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public void release()
Description copied from interface: ChunkSource
Releases any held resources.
Specified by:release in interface ChunkSource