MPGG
^{Streamlined MPEG-1 and MPEG-2 source loader and helper utility for VapourSynth}

Features

• 🎥 Supports MPEG-1 and MPEG-2 Sources
• 🧠 Understands Mixed-scan Sources
• 🤖 VFR to CFR (Variable to Constant frame rate)
• 🛠️ Automatic Frame-indexing using DGIndex
• ⚙️ Zero-configuration
• 🧩 Easy installation via PIP/PyPI
• ❤️ Fully Open-Source! Pull Requests Welcome

Installation

$ pip install mpgg

Voilà 🎉! You now have the mpgg package installed, and you can now import it from a VapourSynth script.

Dependencies

The following is a list of software that needs to be installed manually. MPGG cannot install these automatically on your behalf.

Software

• DGIndex v1.5.8+ for automatic frame-indexing of MPEG streams.
• MKVExtract for demuxing MPEG streams from MKV containers, only required if you use MKV files directly.

Make sure you put them in your current working directory, in the installation directory, or put the directory path in your PATH environment variable. If you do not do this then their binaries will not be able to be found.

VapourSynth Plugins

• d2vsource for loading an indexed DGIndex project file.

These plugins may be installed using vsrepo on Windows, or from a package repository on Linux.

Usage

The following is an example of using MPGG to get a clean CFR Fully Progressive stream from an Animated Mixed-scan VFR DVD-Video source.

import functools

from mpgg import MPGG
from havsfunc import QTGMC

# load the source with verbose information printed
mpg = MPGG(r"C:\Users\John\Videos\animated_dvd_video.mkv", verbose=True)

# recover progressive frames where possible, and show which frames were recovered
mpg.recover(verbose=True)

# deinterlace any remaining interlaced frames with QTGMC, and show which frames were deinterlaced
mpg.deinterlace(
  kernel=functools.partial(QTGMC, Preset="Very Slow", FPSDivisor=2),
  verbose=True
)

# convert VFR to CFR by duplicating frames in a pattern
mpg.ceil()

# get the final clip (you may use the clip in between actions as well)
clip = mpg.clip

# ...

clip.set_output()

You can also chain calls! This is the same script but chained,

import functools

from mpgg import MPGG
from havsfunc import QTGMC

# load MPEG, recover progressive frames, deinterlace what's left, and finally VFR to CFR
clip = MPGG(r"C:\Users\John\Videos\animated_dvd_video.mkv", verbose=True).\
  recover(verbose=True).\
  deinterlace(kernel=functools.partial(QTGMC, Preset="Very Slow", FPSDivisor=2), verbose=True).\
  ceil().\
  clip

# ...

clip.set_output()

There are more methods not shown here. I recommend taking a look at the MPGG class for further information, methods, and more.

Warning Do not copy/paste and re-use these examples. Read each method's doc-string information as they each have their own warnings, tips, and flaws that you need to be aware of. For example, recover() shouldn't be used on all MPEG sources, floor() shouldn't be used with recover(), you may not want to use ceil() if you want to keep encoding as VFR, and such.

Terminology

Term	Meaning
CFR	Constant frame-rate, the source uses a set frame rate on playback
VFR	Variable frame-rate, the source switches frame rate at least once on playback
Scan	The technology used to show images on screens, i.e., Interlaced or Progressive
Mixed-scan	Source with both Progressive and Interlaced frames within the video data
Frame-indexing	Analyzing a source to index frame/field information for frame-serving

Contributors

License

© 2021-2023 rlaphoenix — GNU General Public License, Version 3.0