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public interface ChunkReader
A ChunkReader provides methods for reading an ASF chunk.
Method Summary | |
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boolean |
canFail()
Tells whether the reader can fail to return a valid chunk. The current Use would be a modified version of StreamChunkReader ,
which is configured to only manage audio streams. |
GUID[] |
getApplyingIds()
Returns the GUIDs identifying the types of chunk, this reader will parse. |
Chunk |
read(GUID guid,
java.io.InputStream stream,
long streamPosition)
Parses the chunk. |
Method Detail |
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boolean canFail()
StreamChunkReader
,
which is configured to only manage audio streams. However, the primary
GUID for audio and video streams is the same. So if a stream shows itself
to be a video stream, the reader would return null
.
true
, if further analysis of the chunk can show,
that the reader is not applicable, despite the header GUID
identification told it can handle
the chunk.GUID[] getApplyingIds()
Chunk read(GUID guid, java.io.InputStream stream, long streamPosition) throws java.io.IOException
guid
- the GUID of the chunks header, which is about to be read.stream
- source to read chunk from.GUID
is expected at the currents stream position.
The length of the chunk is about to follow.streamPosition
- the position in stream, the chunk starts.Chunk
).java.io.IOException
- On I/O Errors.
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