tv.danmaku.ijk.media.drm.upstream

Class DataSourceInputStream

java.lang.Object

java.io.InputStream

tv.danmaku.ijk.media.drm.upstream.DataSourceInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public final class DataSourceInputStream
extends java.io.InputStream

Allows data corresponding to a given DataSpec to be read from a DataSource and consumed through an InputStream.

Constructor Summary

Constructors

Constructor and Description
DataSourceInputStream(DataSource dataSource, DataSpec dataSpec)

Method Summary

Modifier and Type	Method and Description
long	bytesRead() Returns the total number of bytes that have been read or skipped.
void	close()
void	open() Optional call to open the underlying DataSource.
int	read()
int	read(byte[] buffer)
int	read(byte[] buffer, int offset, int length)

Methods inherited from class java.io.InputStream

available, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataSourceInputStream

public DataSourceInputStream(DataSource dataSource,
                             DataSpec dataSpec)

Parameters:

dataSource - The DataSource from which the data should be read.

dataSpec - The DataSpec defining the data to be read from dataSource.

Method Detail

bytesRead

public long bytesRead()

Returns the total number of bytes that have been read or skipped.

open

public void open()
          throws java.io.IOException

Optional call to open the underlying DataSource.

Calling this method does nothing if the DataSource is already open. Calling this method is optional, since the read and skip methods will automatically open the underlying DataSource if it's not open already.

Throws:

java.io.IOException - If an error occurs opening the DataSource.

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buffer)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buffer,
                int offset,
                int length)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException