[Mp4-tech] Doubt about scaling and transformation in H.264, Plz Help...

[atul tomar]

Dear All,
Second time I am posting my same problem hoping that I will be getting some responses. 
Could anyone please clarify my doubt about scaling and transformation? I would highly appreciate your help. 
There is a document "H.264 / MPEG-4 Part 10: Transform & Quantization" on www.vcodex.com by Iain E G Richardson. Can I use this document for implementing all transformations and scaling techniques at encoder and decoder side in my h264CODEC?
Have anyone used Iain E G Richardson document. I have implemented that document and getting correct result in case of 4x4 residual block but not getting correct reconstructed block in case of 4x4 luma DC coefficients and 2x2 chroma DC coefficients although I am following exactly same logic given in document.
Please let me know, if some information is missing at any point in the document, I think there might be some problem in decoder scaling equations. Please correct me.
Please tell me where I can do mistake in understanding this document. 
Does this document follow different process for transformation/scaling then given description of ITU h.264 spec?
Looking for response.
Thanks in advance.
With Warm Regards,
Atul
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