Package com.wowza.io

Interface IRandomAccessReader

  • public interface IRandomAccessReader

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int FORWARD  
      static int REVERSE  

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void close()
      Close the media asset
      boolean exists()
      Does the media asset exist
      String getBasePath()
      Get the basePath for the random access reader
      int getDirecton()
      Get the current direction hint for the random access reader.
      long getFilePointer()
      Get the current byte location in the media asset
      String getMediaExtension()
      Get the media extension
      String getMediaName()
      Get the media name
      String getPath()
      Get the unique path to the media asset item
      void init​(IApplicationInstance appInstance, IMediaStream stream, String basePath, String mediaName, String mediaExtension)
      Intialize RandomAccessReader
      boolean isOpen()
      Is the media asset open
      long lastModified()
      Return the lastModified date (same format as File.lastModified)
      long length()
      Get the media asset length in bytes
      void open()
      Open the media asset
      int read​(byte[] buf, int off, int size)
      Read bytes from the media asset
      void seek​(long pos)
      Seek to a position in the media asset
      void setDirecton​(int directon)
      Set the current direction hint

    • Method Detail

      • init

        void init​(IApplicationInstance appInstance,
          IMediaStream stream,
          String basePath,
          String mediaName,
          String mediaExtension)
        Intialize RandomAccessReader
        Parameters:
        appInstance - application instance
        stream - parent stream if one exists
        basePath - basePath for IApplicationInstance
        mediaName - media name
        mediaExtension - media extension from mediaReaders

      • open

        void open()
   throws java.io.IOException
        Open the media asset
        Throws:
        java.io.IOException

      • close

        void close()
    throws java.io.IOException
        Close the media asset
        Throws:
        java.io.IOException

      • isOpen

        boolean isOpen()
        Is the media asset open
        Returns:
        true if media asset is open

      • getFilePointer

        long getFilePointer()
        Get the current byte location in the media asset
        Returns:
        current byte location in the media asset

      • seek

        void seek​(long pos)
        Seek to a position in the media asset
        Parameters:
        pos - position to seek to

      • read

        int read​(byte[] buf,
         int off,
         int size)
        Read bytes from the media asset
        Parameters:
        buf - buffer to fill
        off - offset in buffer
        size - size of block to read
        Returns:
        number of bytes read, -1 if failure

      • getDirecton

        int getDirecton()
        Get the current direction hint for the random access reader. The underlying system will call setDirection to hint at the current direction the media assets is being read.
        Returns:
        current direction hint for the random access reader

      • setDirecton

        void setDirecton​(int directon)
        Set the current direction hint
        Parameters:
        directon - current direction hint for the random access reader

      • getBasePath

        String getBasePath()
        Get the basePath for the random access reader
        Returns:
        basePath for the random access reader

      • getMediaName

        String getMediaName()
        Get the media name
        Returns:
        media name

      • getMediaExtension

        String getMediaExtension()
        Get the media extension
        Returns:
        media extension

      • exists

        boolean exists()
        Does the media asset exist
        Returns:
        true if media assets exists

      • lastModified

        long lastModified()
        Return the lastModified date (same format as File.lastModified)
        Returns:
        lastModified date (same format as File.lastModified)

      • length

        long length()
        Get the media asset length in bytes
        Returns:
        media asset length in bytes

      • getPath

        String getPath()
        Get the unique path to the media asset item
        Returns:
        unique path to the media asset item