t Opus sample may be helpful by setting zero to the segment_duration field since the
        value 0 represents implicit duration equal to the sum of the duration of all samples.
<a name="4.5"></a>
    4.5 Channel Mapping
        4.5.1 ISO Base Media native Channel Mapping<a name="4.5.1"></a>
            ISO Base Media File Format, that is ISO/IEC 14496-12 [1], defines an extension ChannelLayout to the
            AudioSampleEntry, which conveys information of mapping channels to loudspeaker positions. The 