DGIndex/DGVfapi?

[Amaze]

I noticed this in the manual:

When you use DGVfapi to frame serve, the video is always converted to RGB. This option specifies how the colorspace conversion to RGB is to be performed.

* PC scale - Map output RGB to full range: YUV [16, 235(Y)/240(UV)] -> RGB [0, 255]
* TV scale - Map output RGB to clipped range: YUV [16, 235(Y)/240(UV)] -> RGB [16, 235]

This option affects conversion to RGB, which occurs in only two places in DGMPGDec: 1) in the display window of DGIndex, and 2) the video served by DGVfapi. Generally, unless you have a good reason to clip the RGB, you should select the PC scale option.



I'm a bit confused, how do I know if I'm using dgvfapi?

[gastorgrab]

There are two different ways to frameserve from DGIndex.

1. AviSynth frameserver (DGDecode.dll) - default colorspace is YV12 but can do YUY2 and RGB
2. VFAPI frameserver (DGVfapi.vfp) - TMPGEnc native frameserving format, always RGB
.

[Amaze]

but pc scale is selected in dgindex not avisynth. sorry, this is all new to me. so as long as I use dgdecode in avisynth, there will be no rgb conversion even if pc scale is selected in dgindex?

[gastorgrab]

LumaYV12() Table of Contents

LumaYV12(clip, integer "lumoff", float "lumgain")


This function is unrelated to DGIndex's Luminance Filter.
The transformation is: Y = (y * lumgain) + lumoff

LumaYV12() outputs a 0->255 YUV range, and not a CCIR-601 16->235 range. Use the Avisynth built-in filter ColorYUV() instead if you need to enforce a 16->235 range. The functionality of LumaYV12() can be achieved using ColorYUV(), which has more features, but LumaYV12() is optimized for speed in performing basic luma adjustment.

lumoff: -255 to 255 (default: 0)

Luminosity Offset.
Adjust the luma of all pixels by a fixed amount.


lumgain: 0.0 to 2.0 (default: 1.0)

Luminosity Gain.
Adjust the luma of all pixels by a proportional amount

[Amaze]

I dont want to convert btw. just making sure im not.

[manono]

so as long as I use dgdecode in avisynth, there will be no rgb conversion even if pc scale is selected in dgindex?

That's correct.

[Amaze]

thanks