![]() The subsampling used by YV12 is also called "4:2:0" compared to "4:2:2" which is used by YUY2 and UYVY. Many important codecs stored the video in YV12: MPEG-4 (x264, XviD, DivX and many others), MPEG-2 on DVDs, MPEG-1 and MJPEG. ![]() YV12 is such a format (where chroma is shared in every 2x2 pixel block) that is supported by AviSynth. As long as the luma is conveyed with full detail, detail in the chroma components can be reduced by subsampling (filtering, or averaging) which can be done in several ways (thus there are multiple formats for storing a picture in YUV colorspace). In YUV colorspace there is one component that represent lightness (luma) and two other components that represent color (chroma). These are several different ways to represent colors. 15 Are there any lossless YV12 codecs, which I can use for capturing for example?.14 I installed AviSynth v2.5 and DivX5 (or one of the latest Xvid builds of Koepi), all I got is a black screen when opening my avs in VirtualDub/VirtualDubMod/MPEG-2 encoder?.13 I installed AviSynth v2.5 and get the following error message: "Couldn't locate decompressor for format 'YV12' (unknown)."?.12 Colors are swapped when I load a DivX file in AviSynth v2.5?.11 How do I know which colorspace I'm using at a given place in my script?.10 Are there any disadvantages of processing in YV12?.7 How do I use VirtualDub/VirtualDubMod such that there are no unnecessary color conversions?.6 What will be the main advantages of processing in YV12?.5 How do I use v2.5x if the encoding programs can't handle YV12 (like TMPGEnc or CCE SP)?.4 Which encoding programs support YV12?.3 Where can I download the DGIndex/DGDecode plugin, which supports YV12, to import MPEG-1/MPEG-2/TS/PVA in AviSynth?.2 Where can I download the latest stable AviSynth version which supports YV12?.
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