[Mp4-tech] Logo insertion in MPEG domain

[Olivier Amato]

> one best way to insert logo on encoder or decoder is to copy yuv data of
> the logo on top of input yuv frmae while encoding / out put frame while
> decoding .

Thanks for your response. Actually, I've seen some links which seem to claim
it is possible to insert logos into MPEG files without decoding the stream,
and this is the kind of library or SDK I'm looking for :
- "Compressed Domain Logo Insertion"
http://www.systems.uwaterloo.ca/UnderGrad/Workshop/1999-2000/prgin/prgin%20-%20logo%20insertion.htm
- "A Fast Logo Insertion Algorithm for MPEG Compressed Video
This paper describes a fast logo insertion algorithm for MPEG video
bitstreams using compressed-domain logo insertion techniques. Coding
information contained within the input bitstream is utilized and an in-loop
requantization method is proposed."
http://www.icce.org/conference_program/TUAM-4.htm
- "What really gets to the heart of the value of the product is that we do
splicing and logo insertion without decoding and re-encoding [the signal] in
the HD environment."
http://www.tvtechnology.com/features/news/n_FoxPlots-03.10.04.shtml
Best regards,
Olivier