YV12 FAQ

[danpos]

Originally Posted by Wilbert

I modified the YV12 faq a bit, and moved it to avisynth.org. I hope some of you can read it through and tell me whether I need to change, add or remove anything. Thanks!

I just was reading the topics from this great community (which I always do everyday ) and saw this post and so I went there take an eye and I've to say that it's very pleasant to read out.

Thanks for your time to do our life easier.

Cheers,

[GrofLuigi]

Originally Posted by Wilbert

The YV12 FAQ is moved to avisynth.org:

http://www.avisynth.org/mediawiki/wiki/YV12_FAQ

Hi,

I just found it's moved now http://avisynth.org/mediawiki/YV12_FAQ

GL

[Wilbert]

Thanks for mentioning it. I corrected the link.

[frustum]

The SDK has functions like IsYUY2(), IsYV12(), IsRGB(), etc. At the script level, there is the Info() function, but it simply overlays the video image, and the information isn't easily available the script.

Is there a means whereby a script can determine the format of a video stream it has been handed? I'm hoping for something akin to IsYUY2() for use as a ConditionalFilter() selector.

Why do I want it? Because some plugins don't handle YUY2 but do handle YV12, or the two formats need different arguments. For instance, the RemoveDirt() script can process YV12 sources as-is, but YUY2 sources need to be converted to/from planar YUY2 format before/after RemoveDirt().

Thanks.

[Guest]

Have you read the documentation? The functions you ask for are available.

[frustum]

Neuron2:

I looked at the places listed below, and then some. I know, judging by name, some of these don't make sense to look for IsYUV(), say, but since I didn't find it, I kept looking. I did google search on things like "avisynth isyuv" "avisynth determine video format", etc. No luck. I probably spent an hour browsing around and searching without finding it before coming here.

http://avisynth.org/mediawiki/Internal_functions/Boolean_functions
http://avisynth.org/mediawiki/Internal_functions/Runtime_functions
http://avisynth.org/mediawiki/Internal_functions/Script_functions
http://avisynth.org/mediawiki/Internal_functions/String_functions
...

In fact, I searched all pages under:
http://avisynth.org/mediawiki/Internal_functions

I looked under:
http://avisynth.org/mediawiki/Category:Internal_filters
http://avisynth.org/mediawiki/Category:External_filters
http://avisynth.org/mediawiki/YUY2

I have now found it here:
http://avisynth.org/mediawiki/Clip_properties

I just tried searching on "avisynth isyuy2" (without quotes), and google helpfully changed it to find "avisynth yuy2" instead. That must have happened to me before, but I didn't notice it. When I force it to search on isyuy2, then the last link above finally showed up.

[Guest]

It's right there in the documentation that gets installed with Avisynth. For example, on my system:

E:\AviSynth 2.5\Docs\english\index.htm

Anyway, I'm glad you've got it sorted out.

[jmac698]

I often have difficulties finding documentation. Ideally there would be an index to all keywords. Try to guess where to find LoadPlugin for example - what entry under table of contents would have it? I was looking for the other versions, load std call or whatever.

[Guest]

It was so hard:

Open index.html
Look at left menu
click on Getting Started/Plugins

I had to rest for hours after suffering through that.

[Wilbert]

I looked at the places listed below, and then some. I know, judging by name, some of these don't make sense to look for IsYUV(), say, but since I didn't find it, I kept looking.

You know the mediawiki has a search bar right (under the 'in other languages' on the left hand side)?

[Guest]

Unfortunately using search for "loadplugin" leads to this less-than-useful page:

http://avisynth.org/mediawiki/LoadPlugin