pvsfunc 2.1.3

PHOENiX's compilation of VapourSynth Script's and Functions

pvsfunc

PHOENiX's compilation of VapourSynth Script's and Functions

pip install pvsfunc

Functions

Function	Import
MpegProcessor	from pvsfunc.mpegprocessor import MpegProcessor
decimate	from pvsfunc.__init__ import decimate
debox	from pvsfunc.__init__ import debox

MpegProcessor (mpegprocessor.py)

MpegProcessor (class) is a convenience wrapper for loading and using MPEG videos. It's primary function is to handle the loading and handle video fields to return a CFR (Constant frame-rate) progressive video.

from pvsfunc.mpegprocessor import MpegProcessor
MpegProcessor(filepath[, dict source_cfg={}, str dgindex_path="DGIndex.exe", bool debug=False])

• filepath: Path to a file to import. An MKV file is recommended no matter what the video codec is.
• source_cfg: A dictionary of key=value pairs that will be unpacked and provided to whatever clip Sourcing function get's used. You must provide a dictionary where it's key's are the source function, e.g. {"core.d2v.Source": { "rff": True }, "core.ffms2.Source": { "alpha": False }}
• dgindex_path: A filepath to DGIndex. On Windows if the exe is in your Environment Path, you may simply put "DGIndex" or "DGIndex.exe".
• debug: Debug Mode, Enable it if you want to debug frame information.

MpegProcessor.deinterlace

Deinterlaces frames of a video only if the frame is interlaced. All information required for deinterlacing is gotten from the frame itself, which is why you don't need to specify Field Order (tff=None is automated). It deinterlaces interlaced frames using vivtc.VFM and only uses havsfunc.QTGMC if it could not find a field match. The entire process is much quicker and much more accurate than other deinterlacing methods and even supports working on videos with multiple scan-types, frame-rates and scan-orders. The output will be CFR (Constant frame-rate).

MpegHelper.deinterlace([dict vfm_cfg={}, dict qtgmc_cfg={}, bool tff=None])

• vfm_cfg: key=value settings to pass to core.vivtc.VFM as unpacked arguments (e.g. {"order": 1, "mode": 5}). It defaults to {"order": based on tff arg, "field": 2, "mode": 0}.
• qtgmc_cfg: key=value settings to pass to havsfunc.QTGMC as unpacked arguments (e.g. {"FPSDivisor": 1, "Preset": "Medium"}). It defaults to Single-rate Placebo optimized output based on tff, See code for actual settings used, it will be very slow but great quality wise.
• tff: Wheter to use Top-Field-First or not. None will automatically decide based on the first frame if possible, otherwise it defaults to True.

decimate (init.py)

IVTC (Inverse-telecine) the clip using decimation (frame deletion). This would commonly be used to revert the telecine process of FILM to NTSC but can be used for other rate changes.

from pvsfunc.__init__ import decimate
decimate([int mode=0, int cycle=5, list offsets=[0, 1, 3, 4], bool debug=False])

• mode: 0=core.std.SelectEvery, 1=core.vivtc.VDecimate, If your source uses a constant offsets value throughout the entire source I recommend using mode=0 and ensure offsets are correct. If you need automation or the offsets tend to change throughout the source, use mode=1.
• cycle: Chunks the clip into n frames, then deletes frames specified by offsets (if any).
• offsets: Only used if mode=0 Starting from index of 0 which is frame 1 of the cycle, this indicates which frames to KEEP from the cycle. For example, cycle of 5, and the default offsets ([0, 1, 3, 4]) will delete the 3rd frame (because index 2 isn't in the list) every 5 (cycle) frames.
• debug: Print debugging information

debox (init.py)

Remove Pillarboxing, Letterboxing or Windowboxing from the video by calculating a crop area based on aspect_ratio calculated against clip width and height. If it's windowboxed, use this function twice, first for Pillarboxing, then for Letterboxing.

from pvsfunc.__init__ import debox
debox(str aspect_ratio[, int mode=0, int offset=0])

• aspect_ratio: The Aspect Ratio you wish to crop to, for example: 4:3 to crop to 4:3, 16:9 to crop to 16:9
• mode: The Direction you wish to crop. 0=Pillarboxing (would crop sides), 1=Letterboxing (would crop top/bottom).
• offset: If the content isnt exactly in the center of the frame, you can modify offset to move the crop area. For example, if its a mode=0 (boxing on the left and right) and the content is 2 pixels towards the right (2 pixels away from being centered), use offset=2, if the content is 2 pixels towards the left, use offset=-2