==== video_stream_descriptor

Defined by MPEG in <<ISO-13818-1>>.

[source,xml]
----
<video_stream_descriptor
    multiple_frame_rate="bool, required"
    frame_rate_code="uint4, required"
    MPEG_1_only="bool, required"
    constrained_parameter="bool, required"
    still_picture="bool, required"
    profile_and_level_indication="uint8, required when MPEG_1_only='false'"
    chroma_format="uint2, required when MPEG_1_only='false'"
    frame_rate_extension="bool, required when MPEG_1_only='false'"/>
----
