FlaxEngine/FlaxEngine

Add Video backend for Linux

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#2,646 opened on May 24, 2024

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graphicshelp wantedplatform

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Description

Add missing video backend for Linux platform. Find a good lib or 3rd party plugin for .mp4 files loading (eg. minimp4), then decode h.254 video frames into YUV format (engine can automatically convert into RGB image). Use one of the existing backends as base for proper implementation: https://github.com/FlaxEngine/FlaxEngine/tree/1.9/Source/Engine/Video

All other platforms provide system-lib for video media playback so only Linux is missing.

Video docs: https://github.com/FlaxEngine/FlaxDocs/blob/1.9/manual/graphics/video/index.md

Here is a prototype with minimp4 that loads data from a file but requires frames decoding: PrototypeMinimp4.zip

Contributor guide

Research direction
Study the existing video backends (e.g., Win32, UWP) in the FlaxEngine source to understand the interface. Examine the minimp4 library to determine how to parse MP4 files and decode H.264 frames into YUV. Use the provided prototype as a starting point for Linux specific implementation.
Tech stack
csharpcpp
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
GitC++Video codec basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40