org.mycore.backend.realhelix
Class MCRAVExtRealHelix

java.lang.Object
  org.mycore.datamodel.ifs.MCRAudioVideoExtender
      org.mycore.backend.realhelix.MCRAVExtRealHelix

public class MCRAVExtRealHelix
extends MCRAudioVideoExtender

This class implements the AudioVideoExtender functions for Real Server 8 and Helix Universal Streaming Server 9 instances. It reads technical metadata about stored assets by parsing the Real Server's "View Source" responses and gets a player starter file using the "/ramgen/" mount point. The parameters can be configured in mycore.properties: MCR.IFS.AVExtender..RamGenBaseURL URL of ramgen mount point MCR.IFS.AVExtender..AsxGenBaseURL URL of asxgen mount point MCR.IFS.AVExtender..ViewSourceBaseURL URL of view source function MCR.IFS.AVExtender..RealPlayerURL Download URL for RealOne Player MCR.IFS.AVExtender..MediaPlayerURL Download URL for Microsoft Player

Version:

$Revision: 15022 $ $Date: 2009-03-26 14:53:00 +0100 (Thu, 26 Mar 2009) $

Author:

Frank Lützenkirchen

Field Summary

Fields inherited from class org.mycore.datamodel.ifs.MCRAudioVideoExtender

AUDIO, baseMetadata, basePlayerStarter, bitRate, contentTypeID, durationHours, durationMinutes, durationSeconds, file, frameRate, mediaType, playerDownloadURL, playerStarterCT, size, VIDEO

Constructor Summary

MCRAVExtRealHelix()

Method Summary

void	getPlayerStarterTo(OutputStream out, String startPos, String stopPos) Writes a metafile that starts a streaming player for this asset to an OutputStream, e.
void	init(MCRFileReader file) Initializes this AudioVideoExtender and gets technical metadata from the server that holds the streaming asset.

Methods inherited from class org.mycore.datamodel.ifs.MCRAudioVideoExtender

forwardData, getBetween, getBitRate, getBitRateFormatted, getConnection, getConnectTimeout, getContentTypeID, getDurationFormatted, getDurationHours, getDurationMinutes, getDurationSeconds, getDurationTimecode, getFrameRate, getFrameRateFormatted, getMediaType, getMetadata, getPlayerDownloadURL, getPlayerStarterContentType, getSize, getSizeFormatted, isAudio, isVideo, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MCRAVExtRealHelix

public MCRAVExtRealHelix()

Method Detail

init

public void init(MCRFileReader file)
          throws MCRPersistenceException

Description copied from class: MCRAudioVideoExtender

Initializes this AudioVideoExtender and gets technical metadata from the server that holds the streaming asset. Subclasses must override this method!

Overrides:

init in class MCRAudioVideoExtender

Parameters:

file - the MCRFile that this extender belongs to

Throws:

MCRPersistenceException

getPlayerStarterTo

public void getPlayerStarterTo(OutputStream out,
                               String startPos,
                               String stopPos)
                        throws MCRPersistenceException

Description copied from class: MCRAudioVideoExtender

Writes a metafile that starts a streaming player for this asset to an OutputStream, e. g. a ServletOutputStream. The browser then streams the asset. The client may provide a start and stop position to play only a certain part of the asset.

Specified by:

getPlayerStarterTo in class MCRAudioVideoExtender

Parameters:

out - the OutputStream to write the player starter to

startPos - the optional start position in the format "hh:mm:ss"

stopPos - the optional stop position in the format "hh:mm:ss"

Throws:

MCRPersistenceException