Converts the level indication in the stream's visual object sequence into
a string. vis_obj_seq is expected to be the data following the visual
object sequence start code. Only the first byte
(profile_and_level_indication) is used.
Parameters
vis_obj_seq: string|Uint8Array<ArrayBufferLike>
Pointer to the visual object sequence for the stream.
Returns string
The level as a const string, or NULL if there is an error.
Converts the level indication in the stream's visual object sequence into a string.
vis_obj_seqis expected to be the data following the visual object sequence start code. Only the first byte (profile_and_level_indication) is used.