Class FakeSampleStream
- java.lang.Object
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- com.google.android.exoplayer2.testutil.FakeSampleStream
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- All Implemented Interfaces:
SampleStream
public class FakeSampleStream extends Object implements SampleStream
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
FakeSampleStream.FakeSampleStreamItem
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Nested classes/interfaces inherited from interface com.google.android.exoplayer2.source.SampleStream
SampleStream.ReadDataResult, SampleStream.ReadFlags
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Field Summary
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Fields inherited from interface com.google.android.exoplayer2.source.SampleStream
FLAG_OMIT_SAMPLE_DATA, FLAG_PEEK, FLAG_REQUIRE_FORMAT
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Constructor Summary
Constructors Constructor Description FakeSampleStream(Allocator allocator, MediaSourceEventListener.EventDispatcher mediaSourceEventDispatcher, DrmSessionManager drmSessionManager, DrmSessionEventListener.EventDispatcher drmEventDispatcher, Format initialFormat, List<FakeSampleStream.FakeSampleStreamItem> fakeSampleStreamItems)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
append(List<FakeSampleStream.FakeSampleStreamItem> items)
AppendsFakeSampleStreamItems
to the list of items that should be written to the queue.void
discardTo(long positionUs, boolean toKeyframe)
Discards data from the queue.long
getLargestQueuedTimestampUs()
Returns the timestamp of the largest queued sample in the queue, orLong.MIN_VALUE
if no samples are queued.boolean
isLoadingFinished()
Returns whether data has been written to the sample queue until the end of stream signal.boolean
isReady()
Returns whether data is available to be read.void
maybeThrowError()
Throws an error that's preventing data from being read.int
readData(FormatHolder formatHolder, DecoderInputBuffer buffer, @com.google.android.exoplayer2.source.SampleStream.ReadFlags int readFlags)
Attempts to read from the stream.void
release()
Release the stream and its underlying sample queue.void
reset()
Resets the sample queue.boolean
seekToUs(long positionUs)
Seeks the stream to a new position using already available data in the queue.int
skipData(long positionUs)
Attempts to skip to the keyframe before the specified position, or to the end of the stream ifpositionUs
is beyond it.void
writeData(long startPositionUs)
Writes all not yet writtensample stream items
to the sample queue starting at the given position.
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Constructor Detail
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FakeSampleStream
public FakeSampleStream(Allocator allocator, @Nullable MediaSourceEventListener.EventDispatcher mediaSourceEventDispatcher, DrmSessionManager drmSessionManager, DrmSessionEventListener.EventDispatcher drmEventDispatcher, Format initialFormat, List<FakeSampleStream.FakeSampleStreamItem> fakeSampleStreamItems)
- Parameters:
allocator
- AnAllocator
.mediaSourceEventDispatcher
- AMediaSourceEventListener.EventDispatcher
to notify of media events.drmSessionManager
- ADrmSessionManager
for DRM interactions.drmEventDispatcher
- ADrmSessionEventListener.EventDispatcher
to notify of DRM events.initialFormat
- The firstFormat
to output.fakeSampleStreamItems
- Theitems
to output.
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Method Detail
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append
public void append(List<FakeSampleStream.FakeSampleStreamItem> items)
AppendsFakeSampleStreamItems
to the list of items that should be written to the queue.Note that this data is only written to the queue once
writeData(long)
is called.- Parameters:
items
- The items to append.
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writeData
public void writeData(long startPositionUs)
Writes all not yet writtensample stream items
to the sample queue starting at the given position.- Parameters:
startPositionUs
- The start position, in microseconds.
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seekToUs
public boolean seekToUs(long positionUs)
Seeks the stream to a new position using already available data in the queue.- Parameters:
positionUs
- The new position, in microseconds.- Returns:
- Whether seeking inside the available data was possible.
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reset
public void reset()
Resets the sample queue.A new call to
writeData(long)
is required to fill the queue again.
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isLoadingFinished
public boolean isLoadingFinished()
Returns whether data has been written to the sample queue until the end of stream signal.
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getLargestQueuedTimestampUs
public long getLargestQueuedTimestampUs()
Returns the timestamp of the largest queued sample in the queue, orLong.MIN_VALUE
if no samples are queued.
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discardTo
public void discardTo(long positionUs, boolean toKeyframe)
Discards data from the queue.- Parameters:
positionUs
- The position to discard to, in microseconds.toKeyframe
- Whether to discard to keyframes only.
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release
public void release()
Release the stream and its underlying sample queue.
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isReady
public boolean isReady()
Description copied from interface:SampleStream
Returns whether data is available to be read.Note: If the stream has ended then a buffer with the end of stream flag can always be read from
SampleStream.readData(com.google.android.exoplayer2.FormatHolder, com.google.android.exoplayer2.decoder.DecoderInputBuffer, @com.google.android.exoplayer2.source.SampleStream.ReadFlags int)
. Hence an ended stream is always ready.- Specified by:
isReady
in interfaceSampleStream
- Returns:
- Whether data is available to be read.
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maybeThrowError
public void maybeThrowError() throws IOException
Description copied from interface:SampleStream
Throws an error that's preventing data from being read. Does nothing if no such error exists.- Specified by:
maybeThrowError
in interfaceSampleStream
- Throws:
IOException
- The underlying error.
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readData
public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer, @com.google.android.exoplayer2.source.SampleStream.ReadFlags int readFlags)
Description copied from interface:SampleStream
Attempts to read from the stream.If the stream has ended then
C.BUFFER_FLAG_END_OF_STREAM
flag is set onbuffer
andC.RESULT_BUFFER_READ
is returned. Else if no data is available thenC.RESULT_NOTHING_READ
is returned. Else if the format of the media is changing or ifformatRequired
is set thenformatHolder
is populated andC.RESULT_FORMAT_READ
is returned. Elsebuffer
is populated andC.RESULT_BUFFER_READ
is returned.- Specified by:
readData
in interfaceSampleStream
- Parameters:
formatHolder
- AFormatHolder
to populate in the case of reading a format.buffer
- ADecoderInputBuffer
to populate in the case of reading a sample or the end of the stream. If the end of the stream has been reached, theC.BUFFER_FLAG_END_OF_STREAM
flag will be set on the buffer.readFlags
- Flags controlling the behavior of this read operation.- Returns:
- The
result
of the read operation.
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skipData
public int skipData(long positionUs)
Description copied from interface:SampleStream
Attempts to skip to the keyframe before the specified position, or to the end of the stream ifpositionUs
is beyond it.- Specified by:
skipData
in interfaceSampleStream
- Parameters:
positionUs
- The specified time.- Returns:
- The number of samples that were skipped.
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