[Mp4-tech] Do different vendor decoders produce the same output for a given video bitstream

[Patrick Rault]

          Dear Arun,
  Not necessarily, since in MPEG4-2, the inverse transformation (IDCT) is not fix point defined, then  different decoders output could be varying according to implementation choice of this very specific part of the standard (while still legitimately claiming standard compliance).
  Patrick
arun menon <bravearun rediffmail.com> wrote:
Hi Experts,
I am working on MPEG-4 Simple Profile decoder and I would like to know -
if we give the same bitstream to different vendors decoders (with complaince to the same profile/level), will it produce the same output yuv. I mean will the output yuv produced by different vendor decoders be bit exact?
Thanks,
Arun 
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