fi.helsinki.cs.ohtu.mpeg2
Class VideoStream.VideoPacketizer

java.lang.Object
  fi.helsinki.cs.ohtu.mpeg2.AVPacketizer
      fi.helsinki.cs.ohtu.mpeg2.VideoStream.VideoPacketizer

Enclosing class:

VideoStream

private static class VideoStream.VideoPacketizer
extends AVPacketizer

Implements the packetizer for video streams.

Nested Class Summary

Nested classes/interfaces inherited from class fi.helsinki.cs.ohtu.mpeg2.AVPacketizer

AVPacketizer.State

Field Summary

private boolean

alignIFrames

Constructor Summary

VideoStream.VideoPacketizer(StreamID sid, int bufsize, boolean alignIFrames)
Creates a new video packetizer.

Method Summary

protected boolean

needPacketAlign(AccessUnit au) Gets whether the given access unit needs to be packet aligned.

Methods inherited from class fi.helsinki.cs.ohtu.mpeg2.AVPacketizer

close, flush, getBufferSize, getDesiredBuffering, getNextDts, getPayloadPrefixLength, getState, getStreamId, isMuxable, packetize, setPacketizerListener, setTimebaseOffset, write, writePayloadPrefix

Methods inherited from class java.lang.Object

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

Field Detail

alignIFrames

private final boolean alignIFrames

Constructor Detail

VideoStream.VideoPacketizer

public VideoStream.VideoPacketizer(StreamID sid,
                                   int bufsize,
                                   boolean alignIFrames)

Creates a new video packetizer.

Parameters:

sid - the stream id for the packetized stream

bufsize - the size of the video decoder buffer, in bytes

alignIFrames - true if I-frames are to be started at packet boundaries

Method Detail

needPacketAlign

protected boolean needPacketAlign(AccessUnit au)

Description copied from class: AVPacketizer

Gets whether the given access unit needs to be packet aligned. If packet alignment is required, the access unit will be placed at the start of a packet.

This packetizer uses this method to get hints when to start a new packet. The default implementation returns true when an access unit is marked as discontinuous.

Overrides:

needPacketAlign in class AVPacketizer

Parameters:

au - the access unit for which packet alignment is checked

Returns:

true if packet aligned is needed