I fixed some bugs. Other people who understand Python improved things a bit. This is yet another maintenance release. See the changelog for the full list of fixes.
I fixed some bugs. Other people who understand Python improved things a bit. This is yet another maintenance release. See the changelog for the full list of fixes.
I uploaded a new FFMS2 compile using the latest FFmpeg. This fixes many SWScale issues, for example planar RGB can now always be used as output, and also some other decoding issues. Especially VapourSynth users should update.
This is a quick bugfix release. It fixes an incorrect output bug in 3×3 (and smaller) convolutions and several AVFS output issues that were carried over from the original code. You should update.
I actually did test this release. I mean it. Not like the previous one where only the core parts got tested. Anyway, this release fixes all known regressions that appeared in R33 and optimizes several internal functions. It also adds support for handling pre-multiplied alpha in MaskedMerge and a PreMultiply filter to apply it.
VSFS was removed and replaced with AVFS, importing all improvements such as faster mount speed and other fixes. The codebase was also unified for both Avisynth and VapourSynth to make maintaining it less annoying in the future. But wait! There’s more! When using recent Avisynth+ builds it can now output exactly the same high bitdepth formats as VapourSynth! Interestingly this makes AVFS considerably better than the current VFW output of Avisynth+.
Possibly breaking changes:
Some Avisynth filters are really, really popular and show up many scripts. Some of them like RemoveGrain and TemporalSoften have even been ported because they’re useful and used in so many scripts.
…But what is TemporalSoften really used for?
TemporalSoften is the definition of cargo cult programming, its code and concept gets copied over and over again and nobody knows exactly why. Let’s start with a few facts:
With these facts in mind you have to wonder why anyone’d ever put it in a script from the past decade. The answer is simple, if you set the denoising thresholds to their max values you get a filter that averages an odd number of frames. If you’re creative you can blend several frames with different weights. That’s actually kinda useful sometimes. So useful someone already wrote an Avisynth plugin for it. It’s a shame that it was fairly quickly forgotten. Unfortunately nobody who ported TemporalSoften to VapourSynth stopped to think about what it was actually used for and instead a very optimized version of TemporalSoften was created. And rewritten. And optimized a bit more. Because why not?
To try to counter this madness I’ve made a collection of small useful and experimental functions available. The first version can be found in this thread. Go try it and stop blending frames with TemporalSoften.
RemoveGrain is kind of an abomination as a filter. Mostly because it has over 20 different modes that effectively are different filters. These are probably just numbered in the order the author came up with them and this can be very confusing. Having that many modes also leads to the big question of what these modes actually do and which ones are actually used. A quick check showed that modes 2, 4, 11, 12, 19 and 20 are the most common (most other modes are useless and/or pointless in case you’re wondering).
Mode 2: 3×3 clipping operation with no nice name
Mode 4: 3×3 median
Mode 11&12: 3×3 convolution using [1 2 1, 2 4 2, 1 2 1]
Mode 19: 3×3 convolution using [1 1 1, 1 0 1, 1 1 1]
Mode 20: 3×3 convolution using [1 1 1, 1 1 1, 1 1 1]
If you’re paying attention you can easily see that all except mode 2 are easily replaceable by easier to read functions that support more input formats. Go do that!
Already a new release because I created a memory leak in filters like Invert and Binarize. Update OR DIE!
What’s to experimental in this release you ask? Basically all the code got modified. Everywhere. To re-factor and optimize things. The most important improvements are:
There are also a few important compatibility related changes from previous versions:
It’s once again time to slow down in development. It’s a bit of a tradition around here. Maybe I’ll make R33 a really small bugfix release but don’t expect big changes to happen for a while.
But we added it anyway. Seriously people, just say no to interlaced material. Or de-interlace it properly. And you should all update since a bug that caused caches to not always be automatically inserted where they should be was fixed.
Breaking changes:
Progressive material that’s encoded as interlaced (far too common) may now by default have interlaced resizing applied to it. Use core.std.SetFieldBased(clip, 0)
to easily flag it as progressive before resizing.
PlaneAverage has now been removed. Use PlaneStats instead.
VSPipe outputs planar RGB in the GBR plane order now to match what other programs expect as input.