Search Results for "alpha"
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Showing 332 open source projects for "alpha"
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Olive Video Editor
Free open-source non-linear video editor
0.2 is the upcoming major release of Olive. It's a complete rewrite from the ground up designed around cutting-edge features to help you make the best videos possible. Olive 0.2 provides powerful and flexible node-based compositing. Node editing is a form of visual programming that gives you full control over how Olive renders your video. Rather than a "fixed" pipeline where one effect occurs after the other, nodes allow you to connect anything to anything else allowing a ton of flexibility... -
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libavif
Library for encoding and decoding .avif files
libavif is a portable, open-source C library that implements encoding and decoding for the AVIF (AV1 Image File Format), offering a robust, production-ready way to work with AVIF images across platforms. It supports all AV1-supported YUV formats and bit-depths, including alpha (transparency), and includes command-line tools (avifenc and avifdec) to easily convert to/from AVIF from common image formats like JPEG, PNG, or Y4M. The API is straightforward, allowing applications to integrate AVIF support natively — creating, decoding, compressing, or decompressing images programmatically. Recent developments have added experimental support for HDR gain maps, improved color-space handling (including wide color gamut and high bit depth), and better quality tuning modes for encoding, making libavif a cutting-edge tool for high-quality image compression. -
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AV1 AVIF
AV1 Image File Format Specification - ISO-BMFF/HEIF derivative
...The project outlines the syntax and semantics required for AVIF compliance, including support for multiple image profiles, color depths, chroma subsampling modes, HDR/WCG, alpha channels, animation/image sequences, and various color-space/bit-depth combinations — making AVIF a versatile, modern image format suitable for both simple photos and advanced imagery needing high fidelity. The specification ensures interoperability across encoders and decoders, providing guidelines so that images created by any compliant AVIF encoder can be reliably decoded by compliant decoders. ... -
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Gifski
Convert videos to high-quality GIFs on your Mac
...The QuickTime Animation format is not supported. Use ProRes 4444 XQ instead. It's more efficient, more widely supported, and like QuickTime Animation, it also supports alpha channel. Gifski has a bunch of settings like changing dimensions, speed, frame rate, quality, looping, and more. -
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Apprentice Video
it's a video player, also works for music and pictures
This player stands on the giant shoulders of FFmpeg. Audio rendering is accomplished via portaudio v19. Video rendering is via OpenGL, using fragment programs when possible. User interface is implemented with Qt 4/5/6. ASS/SSA subtitle rendering is implemented with libass. This player provides several performance options to enable adequate video playback on slow hardware: * skip loop filter * skip non-reference frames * skip color converter * reduce playback speed to... -
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Snowmix
Video mixer for mixing live and recorded video and audio feeds
New version 0.5.2.2 Released May 15th 2026. Snowmix is a Swiss army knife tool for mixing live and recorded video and audio feeds. It supports 2D and 3D clipping, scaling and transparent overlay of video, png graphics and text. It supports animation of video, images and texts through native commands changing scale, placement, transparency and rotation. Animation and actions can also be controlled through native scripting and an embedded Tcl and/or Python interpreter. Snowmix is designed... -
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A multimedia authoring and processing framework and a video playout server for television broadcasting.
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VirtualDub2
An enhanced version of the original VirtualDub
A streamlined video editor with simple frame-by-frame timeline. Free, open-source, portable. The default package is ready for use with many essential plugins included, and can be further extended with 3rd party codecs and filters. See Wiki for detailed description: https://sourceforge.net/p/vdfiltermod/wiki. Previous name of this project: VirtualDub FilterMod -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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GLMixer
Graphic Live Mixer
GLMixer performs real time graphical blending of several movie clips and of computer generated graphics. Drop video files in the mixing workspace and place them in a circular area to change their opacity ; if you selects two videos, moving them together performs a fading transition. This principle generalizes to a large number of videos. Direct interaction with the video allows to be fast and reactive, and to move and deform them on screen. The output of your operations is shown in the... -
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The Video Annotation and Reference System (VARS) is a software interface and database system that provides tools for describing, cataloging, retrieving, and viewing the visual, descriptive, and quantitative data associated with video.
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Programmer's Guide to SJCAM SJ4000 WiFi
Learn how to control SJCAM SJ4000 WiFi without proprietary software
"A Programmer's Guide to SJCAM SJ4000 WiFi" is a reverse-engineered documentation of WiFi-based control protocol and API in SJCAM SJ4000 WiFi action camera, providing necessary information for free software developers to develop applications or libraries for controlling it wirelessly. The guide also documents details necessary for power users to utilize this feature of their own camera without relying on proprietary SJCAM ZONE software; along with trivia, catches, quirks, and limitations... -
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FSM: Font System Manager
FSM is a tool designed to bridge the gap between ImageMagick & paperjs
ImageMagick and browser-based tools such as paperjs use very different engines for font rendering. This makes it difficult to reproduce accurately effects, for example, in video projects where the placement of text, sub-images, etc needs to be tested before production. While paperjs will render a scene in a browser context, it cannot be used in production, where ImageMagick is necessary. FSM allows for the classification of usable fonts for both these interfaces, accurate measurement of... -
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XynA Player is a video player based on gstreamer. It connects to AnyX media center to play the TV programs.
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YouStream
Stream Audio/Music from Youtube.
Free, beautiful, and most importantly functional. Stream Audio from your favorite Youtube Videos, Music Videos, and more. -
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A Transport Stream analyser for the Brazilian D-TV system (SBTVD / ISDB-Tb). It shows in a GUI the SI/PSI structure of the stream in a tree-view, bitrate statistics for each ES, specific Closed Caption, EPG and DSMCC carroussel decoding plus more.
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A digital animation tool for real-time generation and interpretation of images, video and visual effects, allowing the artist/operator to adjust, on the fly, the parameters of the effects according to his or her own sensibility.
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ANNGD
Artificial neural network gender detection
ANNGD is a artificial neural network gender detection application. The detection is made in real time images captured by webcam by opencv library. The package include applications to image pre-processing and artificial neural network back-propagation training. -
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TvARP is a program created for automated recording and playback for small local TV stations. Specifically for local stations that have a low budget and can't afford a commercial automation system. I have not had time to finish this software. If you are interested in using it please let me know. Currently it is designed for use with the SIMA-VS502 video switch, and I am using it in our local TV Station. There are changes that need to be made to the source code to be able to use it...
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LightBird
LightBird media server
LightBird is a media server that allows anyone to access their data from anywhere with any device. Its main goal is to provide a secured and closed environment, that doesn't rely on any third party, without any technical knowledge required. -
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easyjasub
Tool to add furigana and in-line translation to Japanese subtitles
easyjasub (http://easyjasub.sf.net) is a tool to assist in understanding Japanese subtitles those who have a little knowledge of Japanese language, for language learning. It allows you to get subtitles with furigana and in-line translation, in several formats suitable for both video rendering and self-study Timing for the Japanese subtitles is used, the secondary subtitles may be repeated into multiple lines. The synchronization of input text subtitles is very important to properly... -
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MRelay
Host to Host Network Acceleration and Encryption
MRelay splits and distributes the traffic of a single TCP connection to several connections and merges the data at the other end. Using this approach, it is possible to achieve high throughput between two points on the network regardless of the delay between two points. MRelay can optionally encrypt the data and exchange some http headers before the relay process to make the traffic look like a regular http file download. This can be used to overcome the highly restrictive firewalls that are... -
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A simple java front-end for the free MPlayer/Mencoder software, for the purpose of encoding video. Initially the focus is on converting DVD into MPEG-4. The purpose is to be as cross-platform as possible.
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MFM operates with audio/video files supported by taglib-sharp. It facilitates metadata and conversion operations. Support for iPod/iPhone video conversion is significant. Splits album file into track files using CUE
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BitrateCompressionCalculator for Python
A simple Python utility to calculate file size from bitrate.
BitrateCompressionCalculator for Python (BCCpy) is a very simple application for calculating a file size from length and bitrate. BCCpy came about as the result of my beginning to learn Python and recreating the basic functionality of a simple VB program I wrote back in 1999. Since I was never very proficient with Visual Basic (or Applesoft BASIC for that matter); this application is very basic and could use lots of improvements. I'll implement them as I learn them. As of October 6,...
