Basic Ut Video question

[HalOfBorg]

Can someone give me a simple explanation of these video formats for Ut Video?



I've been trying it and so far it seems to make renders move much faster for me, so time for learning. I know basics of RGB and YUV, and it's a 32bit system so I assume I know what x86 means......

Use small words, they fit better in my small brain.

[LantisEscudo]

Both the RGB and RGBA options store your video in the RGB colorspace, the RGBA option also includes an alpha channel.

Both the YUV 420 and 422 options store your video using the YUV colorspace. The difference between them is in how the chroma values are sampled. For footage being sourced from DVDs or Blu-Rays, you should be using YUV420.

The four-character codes (ULRG, ULRA, ULY0, and ULY2) are just the codes that will be stored in your file's header so that the system knows which decoder to use.

The x86 part just means you're using the 32-bit version of the codec, rather than the 64-bit (x64) version.

[HalOfBorg]

Thank you.

[Mister Hatt]

The number sequence also hints as to what order channels/planes are stored in. Also, the YUV420 is actually NV12, not YV12. But that isn't really important as avisynth has that wrong as well.