wulkano/kap

Encoding artifacts

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#678 opened on May 28, 2019

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 (6 comments) (0 reactions) (0 assignees)JavaScript (11,043 stars) (548 forks)batch import
Can't ReproduceHelp WantedType: Bug

Description

macOS version: macOS 10.14.1 (18B75) Kap version: 3.0.0 - beta5 Mac Model: Macbook Pro 15-inch, 2017 FPS Setting: 30FPS

Steps to reproduce

  1. Make a recording
  2. Bug shows up in editor

Current behaviour

On occasion recordings in Kap Beta produce some kind of artifact, assumingly from some kind of encoding issue.

Attached Kapture for reference. (Notice the bottom edge) Kapture 2019-05-28 at 11 59 29

Contributor guide

Tech stack
javascriptnodejselectron
Domain
desktop
Issue type
bug
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.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Basic knowledge of ElectronUnderstanding of video encoding
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate the encoding pipeline in Kap, focusing on how video frames are processed and encoded. Look at the use of ffmpeg or any native modules for video encoding. The issue mentions artifacts at the bottom edge, which might be related to incorrect frame dimensions or encoding settings. Check recent changes to encoding code and see if there are any open issues or discussions about similar problems.