SVP team is already so busy trying to make SVP stable for Linux and MAC OS'es, as well as Windows (AVS 2.6 MT, AVS+ MT beta builds, Vapoursynth), they're not going to have the time to update FFDShow.FrameGUI is an open-source video transcoder that uses FFMpeg, AviSynth+, and SVPFlow AviSynth plugins to provide advanced encoding features such as frame.Dllref = ctypes.windll.LoadLibrary("G:/Hybrid/vsfilters/Support/libfftw3f-3.dll")Intro.Audio output with video in VFW and AVFS can be done with audionode.set_output(1). Simple, right? So instead I’ll list the biggest points. They mostly work like video nodes.
Note that as a general rule script memory usage decreases with the number of plugins used that are updated to the new API version. The memory usage has also been greatly reduced and a scripts like QTGMC (once again) will usually no longer reach the upper limit and warn about memory usage. Almost nobody uses variable format in video and it keeps the complexity down.A lot of work has gone into improving performance and scripts like QTGMC can run up to 10% faster on modern CPUs. Audio can’t have variable sample rate or format. Generally you shouldn’t use them. Frame properties are not really a thing due to audio frames in VapourSynth being an arbitrary lump of samples. The most common construct is probably vs.get_core() that no longer works. Many script functions were marked as obsolete or removed. COMPAT formats – existed to make loading Avisynth plugins possible but in the 9 years or so since the first release Avisynth+ has appeared and just about all Avisynth filters support planar formats so it’s pointless and adds complexity to core functions) YCoCg – never became popular and everything else treats it as degenerate YUV so now we do too) While the core itself is more or less fully compatible with the old API a few features were removed which can cause issues with less than 1% of all plugins. Svp Avisynth Install Them YourselfUpdate your plugins and there shouldn’t be any surprises.For scripts it’s a bit more complicated. The only known ones that don’t work well are FFMS2 and IMWRI when outputting alpha. The alpha handling has changed and attaching the alpha as an additional frame is now the preferred method.What this means in practice is that 99% of all plugins works properly. The easiest way to do this is with vsrepo on windows. If your script needs subtext or histogram you have to install them yourself separately. Many plugins are no longer bundled/in the source tree. Crop videos windows movie makerOr at least not completely intuitive so you have to make up clear rules for them. UPDATE NOW!Posted in Uncategorized R55 – Start of the API3 buildsTurns out floating point masks are hard. Apparently all of them used the COMPATBGR32 format because it’s convenient for output. Update your scripts and there shouldn’t be any surprises here either.Where things seem to have broken a lot is however applications that use VSScript like VSEdit. Fortunately just about all scripts have been updated to work on both old and new VapourSynth versions. Posted in Uncategorized R53 – Once more there are bug fixes!Finally the first test version of audio support is ready and this post will describe how it works. Since the Invert and Binarize filters conceptually work in images and not masks (despite often being used for this) new versions called InvertMask and BinarizeMask have been introduced that will have the expected behavior in all cases. MaskedMerge is probably the best example of this. No matter the color space they are always supposed to have a 0-1 range in floating point formats and all filters that output and consume this style of masks have been documented. Mismatched assumptions would obviously yield garbage output or a lot of pointless offsetting using Expr.To solve this the concept of “mask clips” have been introduced. And in turn filters that consume masks made expected one or the other. On the other hand with the correct helper functions it’ll be possible to manipulate multiple audio and video tracks as a group easily. This can be both an advantage and a disadvantage, for example cutting audio and video at the same time by frame numbers will currently require a bit of user scripting. They aren’t stuck together with a video track like in Avisynth. Svp Avisynth Software Tries ToThe only mildly breaking change is that the clip type in function argument strings now has been renamed to vnode and obviously the new anode type has been introduced which may confuse existing software tries to parse the argument strings.The best way to think of audio nodes is as a type completely separate from video nodes that only happen to share some functions to manipulate them. VFW – uses the audio node assigned to output slot 1 and video must be assigned to slot 0Audio = vs.core.bas.Source("somefile.mp3", track=-1)Currently the API isn’t completely stable but only minor changes are expected at this point so starting to port plugins. AVFS – uses the audio node assigned to output slot 1 VSPipe – outputs raw pcm audio and using the -y switch adds wave64 headers AudioSplice and AudioTrim – with the expected Python overloads of course BestAudioSource – a new sample accurate but somewhat slow FFmpeg based source filter (usage: core.bas.Source(“rule6.mp4”))
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