[Mp4-tech] Question about definition of Profiles@Levels for Visual Encoder

[Allen H.Y. Chin]

Dear Experts,
I'm wondering what are the requirements to claim an encoder is compliant
with some_profile some_level?
In Table N-1, Annex N, Part 2 of ISO/IEC 11496-2, definitions of natural
Visual Profiles Levels are listed.
Take CP L2 for example,
Typical Visual Session Size: CIF
Max Objects: 16
Max number per type: 16 x Core or Simple
Max unique Quant Tables: 4
Max VMV buffer size: 2376 MB
Max VCV buffer size: 792 MB
VCV decoder rate: 23760 MB/sec
VCV boundary decoder rate: 11880 MB/sec
Max total VBV buffer size: 80 * 16384 bit
Max VBV buffer size: 80 * 16384 bit
Max video packet length: 8192 bit
Max sprite size: N/A
Wavelet restrictions: N/A
Max bitrate: 2000 kbps
Max enhancement layers per object: 1
Is it correct to say a compliant encoder produces bit stream that do not
exceed the max values of Video Buffering Verifiers?
And what are the lower bounds for certain Profile Level? it it the upper
bound of the lower level?
Thank you very much for your help.
Best regards,
Allen Chin