Should I convert YV12 aka YUV12 to YUY2 for CCE DVD MPEG-2 ?

[FulciLives]

Hello

Got a DVD rip that I ran through DVD2AVI

When I load the D2V into VirtualDub by using AviSynth 2.5x it says:

FourCC Code = YV12
Decompressor = ATI YUV12 Format Codec

Now in DVD2AVI I picked YUV and TV SCALE so shouldn't this be decompressing as YUY2 ?

I'm thinking of putting this line in my AviSynth AVS script:

ConvertToYUY2()

Should I do that? Or do I not need it?

I will be loading the Avisynth AVS script directly into CCE for DVD spec MPEG-2 encoding.

Thanks!

- John "FulciLives" Coleman

P.S.
This is a DVD9 that I want to re-encode so as to fit it on a single DVD-R and I'm using CCE because the movie is rather long at 133 minutes.

[adam]

CCE doesn't support YV12 sources so yes you should add the convert to YUY command in your AVS script. Add it last though because some filters work faster in YV12.

I'm not totally clear on this, but I think it may get converted to YUY2 regardless if you feed it into any encoder. But if you explicitly use the convert to YUY command than you get better chroma upsampling in mpeg2dec.

[FulciLives]

Thanks Adam I was hoping that you would see this as you have given out great CCE advise in the past so ...

THANK YOU !!!

- John "FulciLives" Coleman

[feenix]

Adam,

But if you explicitly use the convert to YUY command than you get better chroma upsampling in mpeg2dec

Interesting! Does this only apply to mpeg2dec.dll or would DirectShowSource be the same? (unless I'm on completely the wrong track here!)

[adam]

That I don't know. But if its a YV12 source its got to be converted to RGB or YUY before being fed into any software encoder that I know of. Its best to go ahead and do these things via your avisynth script so you have some control over it.

BTW for interlaced sources your command should like this.

ConvertToYUY2(interlaced=true)

[feenix]

OK

Thanks