[Mp4-tech] JM reference software problem

[Tomislav Muic]

hello,
thanks for answer, it was a part of problem, but I still have some problems
when I change that every P slice ihas nal_reference_idc=1
http://www.best.hr/share/tmuic/test.264
 it decodes in JM, although it seems that SNR drops unusually in
second IDR frame
but I want to use not every P frame as reference, but only if it is
different more than certain threshold, otherwise I want to use
I-frame, and this does not pass JM
http://www.best.hr/share/tmuic/test1.264
another question, I get some color/luminance drift between different
IDR pictures, does anybody know what could be propable cause, I use
transformation and quantization as defined in paper at www.vcodex.com
http://www.best.hr/share/tmuic/test2.avi
On 9/24/07, Alexis Michael Tourapis <alexismt charter.net> wrote:
> Dear Tomislav,
>
> It seems that all your P slices belong to a picture with nal_reference_idc set to 0 (i.e. they are not set as references). Can you double check your encoder?
>
> Alexis
>
> ---- Tomislav Muic <tomislav.muic gmail.com> wrote:
> > I am having problem with decoding my stream with JM software
> >
> > I get error Unintentional loss of pictures occurs.
> >
> > Stream is decoded in video player just fine
> >
> > I send SPS and PPS first and then
> >
> > AU delimiter
> > IDR pic - I slice
> >
> > AU delimiter
> > P slice
> > ....
> > AU delimiter
> > Pslice
> > end of sequence
> >
> > For frame_num I reset it to zero and add 1 for every next pic,
> > for pic_order_cnt_lsb I send same value as frame_num
> >
> > I can't find why reference software can't read stream, and it is
> > decoded normally in video player.
> >
> >
> >
> > Here is short sample of avi stream and NAL stream
> > http://www.best.hr/share/tmuic/test.264
> > http://www.best.hr/share/tmuic/ftest.avi
> >
> > --
> > Tomislav Muić
> >
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> >
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>

-- 
Tomislav Muić