Package org.mp4parser.boxes.samplegrouping

Class SampleToGroupBox

java.lang.Object
org.mp4parser.support.AbstractBox
org.mp4parser.support.AbstractFullBox
org.mp4parser.boxes.samplegrouping.SampleToGroupBox
All Implemented Interfaces:
Box, FullBox, ParsableBox
public class SampleToGroupBox extends AbstractFullBox

4cc = ""sbgp""

This table can be used to find the group that a sample belongs to and the associated description of that sample group. The table is compactly coded with each entry giving the index of the first sample of a run of samples with the same sample group descriptor. The sample group description ID is an index that refers to a SampleGroupDescription box, which contains entries describing the characteristics of each sample group.

There may be multiple instances of this box if there is more than one sample grouping for the samples in a track. Each instance of the SampleToGroup box has a type code that distinguishes different sample groupings. Within a track, there shall be at most one instance of this box with a particular grouping type. The associated SampleGroupDescription shall indicate the same value for the grouping type.

Version 1 of this box should only be used if a grouping type parameter is needed.

  • Field Details

  • Constructor Details

    • SampleToGroupBox

      public SampleToGroupBox()

  • Method Details

    • getContentSize

      protected long getContentSize()
      Description copied from class: AbstractBox
      Get the box's content size without its header. This must be the exact number of bytes that getContent(ByteBuffer) writes.
      Specified by:
      getContentSize in class AbstractBox
      Returns:
      Gets the box's content size in bytes
      See Also:

    • getContent

      protected void getContent(ByteBuffer byteBuffer)
      Description copied from class: AbstractBox
      Write the box's content into the given ByteBuffer. This must include flags and version in case of a full box. byteBuffer has been initialized with getSize() bytes.
      Specified by:
      getContent in class AbstractBox
      Parameters:
      byteBuffer - the sink for the box's content

    • _parseDetails

      protected void _parseDetails(ByteBuffer content)
      Description copied from class: AbstractBox
      Parse the box's fields and child boxes if any.
      Specified by:
      _parseDetails in class AbstractBox
      Parameters:
      content - the box's raw content beginning after the 4-cc field.

    • getGroupingType

      public String getGroupingType()

    • setGroupingType

      public void setGroupingType(String groupingType)

    • getGroupingTypeParameter

      public String getGroupingTypeParameter()

    • setGroupingTypeParameter

      public void setGroupingTypeParameter(String groupingTypeParameter)

    • getEntries

      public List<SampleToGroupBox.Entry> getEntries()

    • setEntries

      public void setEntries(List<SampleToGroupBox.Entry> entries)