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Android Reference

DataSource


android.media

Interface DataSource

  • All Superinterfaces:
    AutoCloseable, Closeable


    public interface DataSource
    extends Closeable
    An abstraction for a media data source, e.g. a file or an http stream
    • Method Summary

      Methods
      Modifier and Type Method and Description
      long getSize()
      Gets the size of the data source.
      int readAt(long offset, byte[] buffer, int size)
      Reads data from the data source at the requested position
    • Method Detail

      • readAt

        int readAt(long offset,
                 byte[] buffer,
                 int size)
        Reads data from the data source at the requested position
        Parameters:
        offset - where in the source to read
        buffer - the buffer to read the data into
        size - how many bytes to read
        Returns:
        the number of bytes read, or -1 if there was an error
      • getSize

        long getSize()
        Gets the size of the data source.
        Returns:
        size of data source, or -1 if the length is unknown


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