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AviSynth logoAviSynthPlus

AviSynth with improvements

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Top Related Projects

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🎞 Video encoding GUI for Windows.

A video processing framework with simplicity in mind

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MLT Multimedia Framework

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Mirror of https://git.ffmpeg.org/ffmpeg.git

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HandBrake's main development repository

Quick Overview

AviSynthPlus is an open-source scripting language and frameserver for video post-production. It is a successor to the original AviSynth, offering improved performance, new features, and better compatibility with modern systems. AviSynthPlus allows users to manipulate video through a simple scripting interface, making it a powerful tool for video editing and processing.

Pros

  • Powerful and flexible video processing capabilities
  • Extensive plugin ecosystem for additional functionality
  • Cross-platform support (Windows, Linux, macOS)
  • Improved performance compared to the original AviSynth

Cons

  • Steep learning curve for beginners
  • Limited GUI tools, primarily script-based workflow
  • Some older plugins may not be compatible with AviSynthPlus
  • Documentation can be fragmented or outdated in some areas

Code Examples

  1. Basic video loading and resizing:
video = FFVideoSource("input.mp4")
Resize(video, 1280, 720)
  1. Applying a blur effect:
clip = FFVideoSource("input.mp4")
Blur(clip, 1.5)
  1. Creating a simple fade-in effect:
clip = FFVideoSource("input.mp4")
Fade(clip, 0, 30, 0, 255)
  1. Concatenating multiple video clips:
clip1 = FFVideoSource("input1.mp4")
clip2 = FFVideoSource("input2.mp4")
clip3 = FFVideoSource("input3.mp4")
AlignedSplice(clip1, clip2, clip3)

Getting Started

To get started with AviSynthPlus:

  1. Download and install AviSynthPlus from the official GitHub repository.
  2. Create a new text file with a .avs extension.
  3. Write your AviSynth script in the file, for example:
video = FFVideoSource("path/to/your/video.mp4")
Resize(video, 1920, 1080)
ConvertToRGB24()
  1. Save the file and open it with a compatible video player (e.g., MPC-HC) or use it as an input source in video processing software.

For more detailed instructions and documentation, refer to the AviSynthPlus wiki on GitHub.

Competitor Comparisons

2,370

🎞 Video encoding GUI for Windows.

Pros of StaxRip

  • User-friendly GUI for video encoding and processing
  • Integrates multiple tools and codecs in one package
  • Supports batch processing and automation

Cons of StaxRip

  • Less flexible for advanced scripting compared to AviSynthPlus
  • May have a steeper learning curve for users new to video processing
  • Potentially larger resource footprint due to GUI and integrated tools

Code Comparison

AviSynthPlus script example:

LoadPlugin("plugin.dll")
video = AviSource("input.avi")
video = Resize(video, 1280, 720)
video = Tweak(video, sat=1.2)
return video

StaxRip doesn't use direct scripting but offers GUI-based configuration. However, it can utilize AviSynth scripts:

[Configure video processing in GUI]
[Optional: Add custom AviSynth script in advanced settings]
[Set output format and encoding options]
[Start encoding process]

StaxRip provides a more accessible interface for common video processing tasks, while AviSynthPlus offers greater flexibility and control through scripting. StaxRip is better suited for users who prefer a visual approach, while AviSynthPlus caters to those who need precise control and advanced scripting capabilities.

A video processing framework with simplicity in mind

Pros of VapourSynth

  • Python-based scripting language, offering more flexibility and easier integration with other Python libraries
  • Better multithreading support, resulting in improved performance for multi-core systems
  • More modern codebase with active development and frequent updates

Cons of VapourSynth

  • Steeper learning curve for users familiar with AviSynth's syntax
  • Smaller community and fewer available plugins compared to AviSynth's extensive ecosystem
  • Potential compatibility issues with older AviSynth scripts and plugins

Code Comparison

AviSynthPlus:

LoadPlugin("plugin.dll")
clip = AviSource("input.avi")
clip = Resize(clip, 1920, 1080)
clip = Tweak(clip, sat=1.2)
return clip

VapourSynth:

import vapoursynth as vs
core = vs.core
clip = core.ffms2.Source("input.avi")
clip = core.resize.Bicubic(clip, width=1920, height=1080)
clip = core.std.Expr(clip, "x 1.2 *")
clip.set_output()

Both examples demonstrate loading a video, resizing it, and adjusting saturation. VapourSynth's Python-based syntax offers more flexibility, while AviSynthPlus maintains its traditional scripting style.

1,554

MLT Multimedia Framework

Pros of MLT

  • Cross-platform support for Linux, macOS, and Windows
  • Extensive plugin ecosystem with support for various formats and effects
  • Integration with popular video editing software like Kdenlive and Shotcut

Cons of MLT

  • Steeper learning curve for beginners compared to AviSynthPlus
  • Less focus on frame-accurate editing, which is a strength of AviSynthPlus

Code Comparison

AviSynthPlus example:

video = AviSource("input.avi")
video = Crop(video, 0, 0, -0, -0)
video = Resize(video, 1280, 720)
return video

MLT example:

<mlt>
  <producer id="producer0" resource="input.avi"/>
  <filter mlt_service="crop" producer="producer0" in="0" out="0"/>
  <filter mlt_service="resize" producer="producer0" width="1280" height="720"/>
</mlt>

Both frameworks allow for video manipulation, but MLT uses an XML-based approach, while AviSynthPlus uses a script-like syntax. MLT's structure is more verbose but potentially more flexible for complex projects, while AviSynthPlus offers a more concise and straightforward scripting experience for quick edits and processing.

47,343

Mirror of https://git.ffmpeg.org/ffmpeg.git

Pros of FFmpeg

  • Broader functionality: FFmpeg is a complete multimedia framework for encoding, decoding, and processing audio/video
  • Extensive codec support: Handles a wide range of formats and codecs out-of-the-box
  • Command-line interface: Allows for easy scripting and automation

Cons of FFmpeg

  • Steeper learning curve: More complex to use for simple video editing tasks
  • Less focus on frame-accurate editing: Not primarily designed for precise frame-by-frame manipulation

Code Comparison

FFmpeg (command-line example):

ffmpeg -i input.mp4 -vf "scale=1280:720" -c:a copy output.mp4

AviSynthPlus (script example):

video = AviSource("input.avi")
video = video.Lanczos4Resize(1280, 720)
return video

Summary

FFmpeg is a versatile multimedia framework with broad codec support and powerful command-line capabilities, making it ideal for various audio/video processing tasks. AviSynthPlus, on the other hand, is more specialized for frame-accurate video editing and manipulation, offering a scripting interface that may be more intuitive for certain video editing workflows. The choice between the two depends on the specific requirements of the project and the user's familiarity with each tool.

19,074

HandBrake's main development repository

Pros of HandBrake

  • User-friendly GUI for easy video transcoding
  • Wide range of supported input formats and codecs
  • Built-in presets for various devices and platforms

Cons of HandBrake

  • Limited advanced filtering and processing options
  • Less flexibility for complex video manipulation tasks
  • Slower processing speed for certain operations

Code Comparison

HandBrake (CLI usage):

HandBrakeCLI -i input.mp4 -o output.mp4 -e x264 -q 20 -B 160

AviSynthPlus (script example):

video = AviSource("input.avi")
video = Lanczos4Resize(video, 1280, 720)
video = ConvertToYV12()
return video

HandBrake is a user-friendly video transcoder with a GUI and CLI, suitable for general-purpose encoding tasks. It offers a wide range of presets and supports many formats, making it accessible for beginners and intermediate users.

AviSynthPlus, on the other hand, is a powerful frameserver and scripting language for video manipulation. It provides more advanced filtering options and greater flexibility for complex video processing tasks. However, it has a steeper learning curve and requires more technical knowledge to use effectively.

While HandBrake excels in ease of use and quick encoding, AviSynthPlus offers more precise control over video processing and is often used in conjunction with other tools for high-quality video editing and encoding workflows.

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README

AviSynth+

AviSynth+ is an improved version of the AviSynth frameserver, with improved features and developer friendliness.

Visit our forum thread for compilation instructions and support.

Building the documentation:

(Note: the bundled documentation lags behind the descriptions found in the wiki. You can always check the online documentation at http://avisynth.nl/index.php/Main_Page)

AviSynth+'s documentation can be generated into HTML by using Sphinx.

Set-up:

Make sure that Sphinx is installed. This requires that Python is already installed and the pip tool is available. Sphinx 1.3 is the recommended version.

pip install sphinx

For various Linux distributions, a Sphinx package should be available in the distro's repositories. Often under the name 'python-sphinx' (as it is in Ubuntu's repositories).

There is currently a fallback so that distros that only provide Sphinx 1.2 can still build the documentation. It will look different than when built with Sphinx 1.3, because the theme used with Sphinx 1.3 (bizstyle) had not yet been added to the main Sphinx package.

Building the documentation

Once Sphinx is installed, we can build the documentation.

cd distrib/docs/english
make html

Headers for applications which dynamically load AviSynth+:

The expected use-case of AviSynth+ is as a dynamically loaded library (using LoadLibrary on Windows or dlopen everywhere else).

Due to this, it's not actually necessary to build the AviSynth+ library itself in order for applications using it this way to find it.

To facilitate this, we support using CMake to do a limited, headers-only install. The GNUmakefile is deprecated and will eventually be removed.

Using CMake:

To install:

mkdir avisynth-build && cd avisynth-build
cmake ../ -DHEADERS_ONLY:bool=on
make VersionGen install

-DCMAKE_INSTALL_PREFIX can be used to override the install location if need be.

To uninstall:

make uninstall

Using GNUmakefile (legacy):

To install:

make install

To install to a non-standard location:

make install PREFIX=/path/to/location

To uninstall:

make uninstall PREFIX=/path/to/location