MediaPlayback.xml

<?xml version="1.0"?>
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:xrefstyle: basic
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<cluster xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="types types.xsd cluster cluster.xsd" id="0x0506" name="Media Playback Cluster" revision="2">
  <revisionHistory>
    <revision revision="1" summary="Initial Release"/>
    <revision revision="2" summary="Added Text/Audio tracks support, Audio-while-advancing (AA) feature, StateChanged event"/>
  </revisionHistory>
  <clusterIds>
    <clusterId id="0x0506" name="Media Playback"/>
  </clusterIds>
  <classification hierarchy="base" role="application" picsCode="MEDIAPLAYBACK" scope="Endpoint"/>
  <features>
    <feature bit="0" code="AS" name="AdvancedSeek" summary="Advanced media seeking">
      <optionalConform/>
    </feature>
    <feature bit="1" code="VS" name="VariableSpeed" summary="Variable speed playback">
      <optionalConform/>
    </feature>
    <feature bit="2" code="TT" name="TextTracks" summary="Text Tracks">
      <optionalConform/>
    </feature>
    <feature bit="3" code="AT" name="AudioTracks" summary="Audio Tracks">
      <optionalConform/>
    </feature>
    <feature bit="4" code="AA" name="AudioAdvance" summary="Can play audio during fast and slow playback speeds">
      <optionalConform/>
    </feature>
  </features>
  <dataTypes>
    <enum name="CharacteristicEnum">
      <item value="0" name="ForcedSubtitles" summary="Textual information meant for display when no other text representation is selected. It is used to clarify dialogue, alternate languages, texted graphics or location/person IDs that are not otherwise covered in the dubbed/localized audio.">
        <mandatoryConform/>
      </item>
      <item value="1" name="DescribesVideo" summary="Textual or audio media component containing a textual description (intended for audio synthesis) or an audio description describing a visual component">
        <mandatoryConform/>
      </item>
      <item value="2" name="EasyToRead" summary="Simplified or reduced captions as specified in [United States Code Title 47 CFR 79.103(c)(9)].">
        <mandatoryConform/>
      </item>
      <item value="3" name="FrameBased" summary="A media characteristic that indicates that a track selection option includes frame-based content.">
        <mandatoryConform/>
      </item>
      <item value="4" name="MainProgram" summary="Main media component(s) which is/are intended for presentation if no other information is provided">
        <mandatoryConform/>
      </item>
      <item value="5" name="OriginalContent" summary="A media characteristic that indicates that a track or media selection option contains original content.">
        <mandatoryConform/>
      </item>
      <item value="6" name="VoiceOverTranslation" summary="A media characteristic that indicates that a track or media selection option contains a language translation and verbal interpretation of spoken dialog.">
        <mandatoryConform/>
      </item>
      <item value="7" name="Caption" summary="Textual media component containing transcriptions of spoken dialog and auditory cues such as sound effects and music for the hearing impaired.">
        <mandatoryConform/>
      </item>
      <item value="8" name="Subtitle" summary="Textual transcriptions of spoken dialog.">
        <mandatoryConform/>
      </item>
      <item value="9" name="Alternate" summary="Textual media component containing transcriptions of spoken dialog and auditory cues such as sound effects and music for the hearing impaired.">
        <mandatoryConform/>
      </item>
      <item value="10" name="Supplementary" summary="Media content component that is supplementary to a media content component of a different media component type.">
        <mandatoryConform/>
      </item>
      <item value="11" name="Commentary" summary="Experience that contains a commentary (e.g. director’s commentary) (typically audio)">
        <mandatoryConform/>
      </item>
      <item value="12" name="DubbedTranslation" summary="Experience that contains an element that is presented in a different language from the original (e.g. dubbed audio, translated captions)">
        <mandatoryConform/>
      </item>
      <item value="13" name="Description" summary="Textual or audio media component containing a textual description (intended for audio synthesis) or an audio description describing a visual component">
        <mandatoryConform/>
      </item>
      <item value="14" name="Metadata" summary="Media component containing information intended to be processed by application specific elements.">
        <mandatoryConform/>
      </item>
      <item value="15" name="EnhancedAudioIntelligibility" summary="Experience containing an element for improved intelligibility of the dialogue.">
        <mandatoryConform/>
      </item>
      <item value="16" name="Emergency" summary="Experience that provides information, about a current emergency, that is intended to enable the protection of life, health, safety, and property, and may also include critical details regarding the emergency and how to respond to the emergency.">
        <mandatoryConform/>
      </item>
      <item value="17" name="Karaoke" summary="Textual representation of a songs’ lyrics, usually in the same language as the associated song as specified in [SMPTE ST 2067-2].">
        <mandatoryConform/>
      </item>
    </enum>
    <enum name="PlaybackStateEnum">
      <item value="0" name="Playing" summary="Media is currently playing (includes FF and REW)">
        <mandatoryConform/>
      </item>
      <item value="1" name="Paused" summary="Media is currently paused">
        <mandatoryConform/>
      </item>
      <item value="2" name="NotPlaying" summary="Media is not currently playing">
        <mandatoryConform/>
      </item>
      <item value="3" name="Buffering" summary="Media is not currently buffering and playback will start when buffer has been filled">
        <mandatoryConform/>
      </item>
    </enum>
    <enum name="StatusEnum">
      <item value="0" name="Success" summary="Succeeded">
        <mandatoryConform/>
      </item>
      <item value="1" name="InvalidStateForCommand" summary="Requested playback command is invalid in the current playback state.">
        <mandatoryConform/>
      </item>
      <item value="2" name="NotAllowed" summary="Requested playback command is not allowed in the current playback state.
                                    For example, attempting to fast-forward during a commercial might return NotAllowed.">
        <mandatoryConform/>
      </item>
      <item value="3" name="NotActive" summary="This endpoint is not active for playback.">
        <mandatoryConform/>
      </item>
      <item value="4" name="SpeedOutOfRange" summary="The FastForward or Rewind Command was issued but the media is already playing
                                    back at the fastest speed supported by the server in the respective direction.">
        <mandatoryConform>
          <feature name="VS"/>
        </mandatoryConform>
      </item>
      <item value="5" name="SeekOutOfRange" summary="The Seek Command was issued with a value of position outside of the allowed seek range of the media.">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
      </item>
    </enum>
    <struct name="PlaybackPositionStruct">
      <field id="0" name="UpdatedAt" type="epoch-us">
        <mandatoryConform/>
      </field>
      <field id="1" name="Position" type="uint64">
        <quality nullable="true"/>
        <mandatoryConform/>
      </field>
    </struct>
    <struct name="TrackAttributesStruct">
      <field id="0" name="LanguageCode" type="string">
        <mandatoryConform/>
        <constraint type="maxLength" value="32"/>
      </field>
      <field id="1" name="Characteristics" type="list" default="null">
        <entry type="CharacteristicEnum"/>
        <quality nullable="true"/>
        <optionalConform/>
      </field>
      <field id="2" name="DisplayName" type="string" default="null">
        <quality nullable="true"/>
        <optionalConform/>
        <constraint type="maxLength" value="256"/>
      </field>
    </struct>
    <struct name="TrackStruct">
      <field id="0" name="ID" type="string">
        <mandatoryConform/>
        <constraint type="maxLength" value="32"/>
      </field>
      <field id="1" name="TrackAttributes" type="TrackAttributesStruct">
        <mandatoryConform/>
      </field>
    </struct>
  </dataTypes>
  <attributes>
    <attribute id="0x0000" name="CurrentState" type="PlaybackStateEnum">
      <access read="true" readPrivilege="view"/>
      <mandatoryConform/>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0001" name="StartTime" type="epoch-us" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0002" name="Duration" type="uint64" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0003" name="SampledPosition" type="PlaybackPositionStruct" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0004" name="PlaybackSpeed" type="single" default="0">
      <access read="true" readPrivilege="view"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0005" name="SeekRangeEnd" type="uint64" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0006" name="SeekRangeStart" type="uint64" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0007" name="ActiveAudioTrack" type="TrackStruct" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AT"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0008" name="AvailableAudioTracks" type="list" default="null">
      <entry type="TrackStruct"/>
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="AT"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x0009" name="ActiveTextTrack" type="TrackStruct" default="null">
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="TT"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
    <attribute id="0x000A" name="AvailableTextTracks" type="list" default="null">
      <entry type="TrackStruct"/>
      <access read="true" readPrivilege="view"/>
      <quality changeOmitted="false" nullable="true" scene="false" persistence="volatile" reportable="false"/>
      <mandatoryConform>
        <feature name="TT"/>
      </mandatoryConform>
      <constraint type="desc"/>
    </attribute>
  </attributes>
  <commands>
    <command id="0x00" name="Play" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform/>
    </command>
    <command id="0x01" name="Pause" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform/>
    </command>
    <command id="0x02" name="Stop" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform/>
    </command>
    <command id="0x03" name="StartOver" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <optionalConform/>
    </command>
    <command id="0x04" name="Previous" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <optionalConform/>
    </command>
    <command id="0x05" name="Next" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <optionalConform/>
    </command>
    <command id="0x06" name="Rewind" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="VS"/>
      </mandatoryConform>
      <field id="0" name="AudioAdvanceUnmuted" type="bool" default="false">
        <mandatoryConform>
          <feature name="AA"/>
        </mandatoryConform>
      </field>
    </command>
    <command id="0x07" name="FastForward" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="VS"/>
      </mandatoryConform>
      <field id="0" name="AudioAdvanceUnmuted" type="bool" default="false">
        <mandatoryConform>
          <feature name="AA"/>
        </mandatoryConform>
      </field>
    </command>
    <command id="0x08" name="SkipForward" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <optionalConform/>
      <field id="0" name="DeltaPositionMilliseconds" type="uint64">
        <mandatoryConform/>
      </field>
    </command>
    <command id="0x09" name="SkipBackward" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <optionalConform/>
      <field id="0" name="DeltaPositionMilliseconds" type="uint64">
        <mandatoryConform/>
      </field>
    </command>
    <command id="0x0A" name="PlaybackResponse" direction="responseFromServer">
      <mandatoryConform/>
      <field id="0" name="Status" type="StatusEnum">
        <mandatoryConform/>
        <constraint type="desc"/>
      </field>
      <field id="1" name="Data" type="string">
        <optionalConform/>
      </field>
    </command>
    <command id="0x0B" name="Seek" direction="commandToServer" response="PlaybackResponse">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="AS"/>
      </mandatoryConform>
      <field id="0" name="Position" type="uint64">
        <mandatoryConform/>
      </field>
    </command>
    <command id="0x0C" name="ActivateAudioTrack" direction="commandToServer" response="Y">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="AT"/>
      </mandatoryConform>
      <field id="0" name="TrackID" type="string">
        <mandatoryConform/>
        <constraint type="maxLength" value="32"/>
      </field>
      <field id="1" name="AudioOutputIndex" type="uint8">
        <quality nullable="true"/>
        <mandatoryConform>
          <feature name="AT"/>
        </mandatoryConform>
      </field>
    </command>
    <command id="0x0D" name="ActivateTextTrack" direction="commandToServer" response="Y">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="TT"/>
      </mandatoryConform>
      <field id="0" name="TrackID" type="string">
        <mandatoryConform/>
        <constraint type="maxLength" value="32"/>
      </field>
    </command>
    <command id="0x0E" name="DeactivateTextTrack" direction="commandToServer" response="Y">
      <access invokePrivilege="operate"/>
      <mandatoryConform>
        <feature name="TT"/>
      </mandatoryConform>
    </command>
  </commands>
  <events>
    <event id="0x00" name="StateChanged" priority="info">
      <access readPrivilege="view"/>
      <optionalConform/>
      <field id="0" name="CurrentState" type="PlaybackStateEnum">
        <mandatoryConform/>
        <constraint type="desc"/>
      </field>
      <field id="1" name="StartTime" type="epoch-us">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="2" name="Duration" type="uint64">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="3" name="SampledPosition" type="PlaybackPositionStruct">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="4" name="PlaybackSpeed" type="single">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="5" name="SeekRangeEnd" type="uint64">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="6" name="SeekRangeStart" type="uint64">
        <mandatoryConform>
          <feature name="AS"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
      <field id="7" name="Data" type="octstr">
        <optionalConform/>
        <constraint type="maxLength" value="900"/>
      </field>
      <field id="8" name="AudioAdvanceUnmuted" type="bool" default="false">
        <mandatoryConform>
          <feature name="AA"/>
        </mandatoryConform>
        <constraint type="desc"/>
      </field>
    </event>
  </events>
</cluster>