[x264-devel] Re: Motion Estimation in X264

[Panagiotis Issaris]

Hi,

On Mon, Nov 13, 2006 at 10:04:02AM -0500, Guy Bonneau wrote:
> I was wondering about the reference buffers used in the motion estimation
> algorithm for the Test Model of h264 as well as X264. Does X264 and the Test
> Model JM10.1 used the reconstructed reference Y buffer or the original
> reference Y buffer to search for Motion Estimation. I know H263 uses the
> reconstructed reference Y buffer but I think Mpeg2 used the original
> reference Y buffer. I know all specifications don't provide guidelines
> regarding this matter. So I was wondering what was decided when implementing
> the JM10.1 and X264.
Weird, I thought you'd always need to use the reconstructed frame, as that's
what the decoder will base it's prediction on. I thought errors would accumulate
otherwise.

With friendly regards,
Takis 

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