Veddy’s documentation!

Veddy is an XML-based video editor targeted at technical presentation. Veddy does not involve any user interface, which facilitates a fully automated pipeline from numerical experiments to video compilation. This document aims to cover a range of functionality of veddy. For a quickstart and some walk-through demos, we encourage that you visit our GitHub repository.

Basics

• Installation
• Minimal Example
• Using Compositions
• Video Dimensions and FPS
• Creating Solid Color Background
• Re-using Streams
• Exporting Multiple Streams
• Evaluating Expressions
• Variables
• Inserting Audios
• Remote Preview
• Specifying Video Settings
• Debugging
• Importing External Files
• Release Dates

Advanced

• Using FFmpeg’s Filters
• Defining New Composition

Tags

• stream
• export
• material
• reference
• pipe
• group
• rolling
• for_each
• import
• set
• global
• config
• ffmpeg_config
• audiotrack
• print
• assert
• exit
• if
• clear
• function
• input
• all_inputs

Compositions

• color
• nullsrc
• trim
• vstack
• hstack
• crop
• join
• split
• scale
• fps
• format
• fade
• extend
• overlay
• transition
• extended_transition
• sidebyside-split
• sidebyside-float
• drawtext
• title-slide
• changespeed
• negate

Built-in Functions

• count() -> int
• width(int) -> int
• height(int) -> int
• fps(int) -> int
• duration(int) -> int
• widths() -> [int]
• heights() -> [int]
• fpses() -> [int]
• durations() -> [int]
• material_width(int) -> int
• material_height(int) -> int
• material_duration(int) -> int
• material_fps(int) -> int
• material_name(int) -> str
• input_count() -> int
• input_width(int) -> int
• input_height(int) -> int
• input_fps(int) -> int
• input_duration() -> [int]
• input_widths() -> [int]
• input_heights() -> [int]
• input_fpses() -> [int]
• input_durations() -> [int]

Reserved Variables

• _bgcolor_
• _fgcolor_
• _width_
• _height_
• _fps_