Chromecast Ultra profile for plex 2018 (4k support)

chromecast.xml

<?xml version="1.0" encoding="utf-8"?>
<Client name="Chromecast">
<TranscodeTargets>
    <VideoProfile protocol="http" container="matroska" codec="h264,h265,hevc" audioCodec="eac3,ac3,aac,mp3" context="streaming" />
    <VideoProfile protocol="http" container="mkv" codec="h264,h265,hevc" audioCodec="eac3,ac3,aac,mp3" context="streaming" />
    <VideoProfile protocol="http" container="mp4" codec="h264,h265,hevc" audioCodec="eac3,ac3,aac,mp3" context="streaming" />
    <MusicProfile container="matroska" codec="mp3" />
    <MusicProfile container="mkv" codec="mp3" />
    <PhotoProfile container="jpeg" />
    <SubtitleProfile container="ass" codec="ass" />
</TranscodeTargets>
<DirectPlayProfiles>
    <VideoProfile container="mp4" codec="hevc,h265,mpeg1video,mpeg2video,h264,mpeg4" audioCodec="eac3,ac3,aac,mp3,mp2"/>
    <VideoProfile container="mkv" codec="vp9,hevc,h265,mpeg1video,mpeg2video,h264,mpeg4" audioCodec="eac3,ac3,aac,mp3,mp2,pcm,flac,alac" subtitleFormat="srt,ass"/>
    <VideoProfile container="mpegts" codec="h264" protocol="hls" audioCodec="aac" />
    <MusicProfile container="mp3" codec="mp2,mp3"/>
    <MusicProfile container="ac3" codec="ac3"/>
    <MusicProfile container="mp4" codec="aac"/>
    <MusicProfile container="flac" codec="flac"/>
    <MusicProfile container="wav" codec="pcm"/>
    <PhotoProfile container="jpeg,png,gif"/>
  </DirectPlayProfiles>
<CodecProfiles>
    <VideoCodec name="h265,hevc,vp9">
      <Limitations>
        <UpperBound name="video.width" value="3840" isRequired="true" />
        <UpperBound name="video.height" value="2176" isRequired="true" />
        <UpperBound name="video.bitrate" value="75000" isRequired="false" />
      </Limitations>
    </VideoCodec>
    <VideoCodec name="h264,mpeg4">
      <Limitations>
        <UpperBound name="video.width" value="3840" isRequired="true" />
        <UpperBound name="video.height" value="2176" isRequired="true" />
        <UpperBound name="video.bitrate" value="75000" isRequired="false" />
      </Limitations>
    </VideoCodec>
    <VideoCodec name="*">
      <Limitations>
        <UpperBound name="video.width" value="1920" isRequired="true" />
        <UpperBound name="video.height" value="1080" isRequired="true" />
        <UpperBound name="video.bitrate" value="30000" isRequired="false" />
      </Limitations>
    </VideoCodec>
    <VideoAudioCodec name="*">
      <Limitations>
        <UpperBound name="audio.channels" value="6"/>
      </Limitations>
    </VideoAudioCodec>
</CodecProfiles>
</Client>