Video Manipulation

Package matroska provides functionality for parsing Matroska/EBML (Extensible Binary Meta Language) files. Matroska is a multimedia container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is based on EBML, which is a binary format similar to XML. This package implements the core EBML parsing functionality, including: The main types in this package are: Example usage: Package matroska provides a pure Go implementation for parsing and demuxing Matroska/EBML files. Matroska is an open standard, free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. This package provides a high-level API for reading Matroska files, extracting track information, and reading media packets. The main entry point is the Demuxer struct, which can be created using either NewDemuxer for seekable inputs or NewStreamingDemuxer for non-seekable streams. Basic usage: Package matroska implements a parser for Matroska and WebM media container formats. Matroska is an open standard, free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. This package provides functionality to parse Matroska files, extract metadata, and read media packets. It builds upon the EBML (Extensible Binary Meta Language) parsing functionality to implement Matroska-specific parsing logic. The main entry point is the MatroskaParser type, which can be created using the NewMatroskaParser function. Once created, it can be used to read file information, track information, and media packets. Example usage: Package matroska defines all the data structures and constants used in the Matroska/EBML project. Matroska is an extensible open standard Audio/video container format. This package provides the core types and constants needed to parse, create, and manipulate Matroska files. The package includes definitions for: These types are used throughout the project to represent different aspects of Matroska files and serve as the central location for all data type definitions used by other files in the project. Package matroska provides utilities for working with Matroska/EBML format. This file contains auxiliary utility functions and types that support the main functionality of the Matroska/EBML parser.

GoAniGiffy is a utility for converting a set of alphabetically sorted images such as video frames grabbed from VLC or MPlayer into an animated GIF with options to Crop, Resize, Rotate & Flip the images prior to creating the GIF GoAniGiffy performs image operations in the order of cropping, scaling, rotating & flipping before converting the images into an Animated GIF. Image manipulation is done using Grigory Dryapak's imaging package. We use the Lanczos filter in Resizing and the default Floyd-Steinberg dithering used by Go Language's image/gif package to ensure video quality. Arbitrary angle rotations are not supported. The -delay parameter must be an integer specifying delay between frames in hundredths of a second. A value of 3 would give approximately 33 fps theoritically Usage of goanigiffy: Sources: https://github.com/srinathh/goanigiffy

Package goav contains the codecs (decoders and encoders) provided by the libavcodec library Provides some generic global options, which can be set on all the encoders and decoders. Package goav deals with the input and output devices provided by the libavdevice library The libavdevice library provides the same interface as libavformat. Namely, an input device is considered like a demuxer, and an output device like a muxer, and the interface and generic device options are the same provided by libavformat Package goav contains methods that deal with ffmpeg filters filters in the same linear chain are separated by commas, and distinct linear chains of filters are separated by semicolons. FFmpeg is enabled through the "C" libavfilter library Package goav provides some generic global options, which can be set on all the muxers and demuxers. In addition each muxer or demuxer may support so-called private options, which are specific for that component. Supported formats (muxers and demuxers) provided by the libavformat library Package goav ... Use of this source code is governed by a MIT license that can be found in the LICENSE file. Giorgis (habtom@giorgis.io) Package goav is a utility library to aid portable multimedia programming. It contains safe portable string functions, random number generators, data structures, additional mathematics functions, cryptography and multimedia related functionality. Some generic features and utilities provided by the libavutil library Package goav provides some generic global options, which can be set on all the muxers and demuxers. In addition each muxer or demuxer may support so-called private options, which are specific for that component. Supported formats (muxers and demuxers) provided by the libavformat library Package goav is a utility library to aid portable multimedia programming. It contains safe portable string functions, random number generators, data structures, additional mathematics functions, cryptography and multimedia related functionality. Some generic features and utilities provided by the libavutil library Package goav is a utility library to aid portable multimedia programming. It contains safe portable string functions, random number generators, data structures, additional mathematics functions, cryptography and multimedia related functionality. Some generic features and utilities provided by the libavutil library Package goav contains golang binding for FFmpeg. A comprehensive binding to the ffmpeg video/audio manipulation library: https://www.ffmpeg.org/ Contains: Package goav contains the codecs (decoders and encoders) provided by the libavcodec library Provides some generic global options, which can be set on all the encoders and decoders. Package goav contains the codecs (decoders and encoders) provided by the libavcodec library Provides some generic global options, which can be set on all the encoders and decoders. Package goav provides a high-level interface to the libswresample library audio resampling utilities The process of changing the sampling rate of a discrete signal to obtain a new discrete representation of the underlying continuous signal. Package goav performs highly optimized image scaling and colorspace and pixel format conversion operations. Rescaling: is the process of changing the video size. Several rescaling options and algorithms are available. Pixel format conversion: is the process of converting the image format and colorspace of the image.

Package vast parses, manipulates and builds Digital Video Ad Serving Templates (VAST). The currently supported version is VAST 4.2.