[x264-devel] Re: x264 features

[shauli.rozen at gmail.com]

you are right about that

On 4/12/06, Tran Minh Son <sony at mht.bme.hu> wrote:
>
> Dear All
> As I hint from the input parameters and also from the source codes, x264
> does not support SP, SI type of frame? It seems that interlaced video as
> well as flexible macroblock ordering are not supported either? Please
> correct me.
> Thank you
>
>
> Son Minh Tran a écrit :
> > Dear Loren Merritt,
> > Thank you for clarification.
> > My question on Hamadard is just a part of my problem, would you please
> > give me more in detail the features of AVC that are supported by x264
> > ? From the feature list of x264 and the way of setting parameters
> > (also the different naming like hadamard) it is very difficult to
> > figure out.
> > Thank you for your helps
> > Regards
> >
> >
> > Loren Merritt a écrit :
> >> On Tue, 11 Apr 2006, Son Minh Tran wrote:
> >>
> >>> Dear All,
> >>> Would you please let me know if the hamadard transform is
> >>> implemented  in x264, or only the DCT?
> >>> Thank you
> >>> Regards
> >>
> >> Yes, it is implemented. x264 usually calls it "SATD" for "sum of
> >> absolute transformed differences".
> >>
> >> But "or only the DCT" is misleading. Hadamard is not part of the
> >> H.264 standard, and is not an alternative to DCT. It is an
> >> encoder-side technique to improve speed and/or quality, and is also
> >> used in some mpeg-1/2/4 encoders.
> >> (Well, hadamard is also part of the h264 intra 16x16 dc transform,
> >> but asking whether that's implemented is meaningless; it's required.)
> >>
> >> --Loren Merritt
> >>
> >
>
> --
> This is the x264-devel mailing-list
> To unsubscribe, go to: http://developers.videolan.org/lists.html
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.videolan.org/pipermail/x264-devel/attachments/20060412/526dc42d/attachment.htm