Category Archives: VapourSynth

R64 – New things break old things

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This release fixes a lot of new things, Zen4 CPUs, Cython 3.x and OSX (not so new) compilation broken in R63.

It’s also the end for 32 bit binaries compiled by me. These binaries get almost no downloads and x64 was first introduced 24 years ago. At this point all x86 fans have a 64 bit CPU. And if you don’t you probably shouldn’t be processing video at all. 32 bit builds are also a lot less useful now that most Avisynth plugins have either been ported or have 64 bit support.

Next thing to go will probably be optimizations for x86 CPUs with less than AVX2. It’s already been 10 years since AVX2 was introduced and 8 years since all CPUs have shipped with support for it. These are more or less the same numbers SSE2 had back when I originally released VapourSynth with a SSE2 minimum requirement.

I bet many doom9 users will rage when that day comes, just like when XP support was removed.

R60 – Fix bugs and remove deprecated functions in Python

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Not much to say about this release apart from the fact that it finally removes all functions that got deprecated with the release of the API4 branch. If you were still using these you were doing things wrong anyway. May break some old scripts but most already have updated versions. The removed functions are:

  • get_frame_async_raw
  • get_plugins
  • get_functions
  • list_functions
  • get_format
  • register_format

R59 – Small bugfix

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A few annoying regressions in R58 was fixed. A safe upgrade for everyone. I also think the world has lost interest in the API3 branch so no more releases there. That is all.

R56 – Testing by a thousand monkeys

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As usual all major new releases have a lot of bugs. Now there are a lot fewer.

  • Performance fix for large resolution (4k+)
  • Fix memory leak in VFW when reloading script
  • Make working dir behavior match API3 again
  • Lots of other small fixes

Now only those pesky people who use the output() function in Python have poor performance.

R55 – Start of the API3 builds

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Starting from today there will separate builds of the new audio branch (master) and the old (api3) branch provided for those who need full compatibility with old scripts.

The biggest fixes in this release is that the handling of pow in expr has been fixed and no longer produces unexpected output. There’s also a new vsrepo included that once again works. That’s about it. It’s the life of a maintenance branch where only super serious things will be fixed.

R53 – Once more there are bug fixes!

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If you’re wondering why it’s taken so long since the previous release it’s partly due to R52 having surprisingly few bugs. You could say that I’m a too good coder (on occasion). The new R53 release mainly exists to add Python 3.9 support to windows and apply a few contributes bugfixes.