Many new caching related settings can be set in the OpenShot Preferences, and the user can now clear the cache any time, by right clicking on the playhead and clicking 'Cache->Clear All'. It also now includes a pre-roll to build up video frames before playback starts, offering a smoother playback experience. This caching algorithm has been improved to operate at different speeds (1X, 2X, 4X) and in both forward and backwards directions. OpenShot utilizes a caching background thread, which prepares upcoming frames before they are needed. Video caching has also been heavily refactored and improved, to offer new functionality and more optimizations. Also, many improvements related to EOF (end of file) detection and file duration detection have further expanded the compatibility, even for badly encoded files with missing timestamps, and incorrect durations (which is very common in JavaScript encoded videos, and certain types of video capture files).

We have rearchitected our decoder to be much more resilient to missing packets, missing timestamps, and better understanding when we are missing video or audio data, so we can move on without pausing.ĭozens of bug fixes and related improvements have also helped OpenShot 3.0 expand compatibility to more video formats and codecs, especially newer ones, which tend to be more reliant on multi-threaded decoding, such as AV1. But to understand why things are so much smoother, we need to look deeper into our decoding engine. One of the largest and most noticeable changes to OpenShot 3.0 is our improved video preview, resulting in smoother video preview and fewer freezes and pauses during previewing.

Enhanced Real-Time Video Playback Performance A few notable improvements are related to thread safety (during timeline changes and video playback caching), multi-threaded unit tests designed to flush out race conditions and concurrency issues, safer object clean-up and deletion, and updates to the Undo/Redo system to prevent crashes (for example, when spamming undo). This was a unique challenge, both in finding clever ways to identify and reproduce crashes, and finding solutions that don't impact the performance of OpenShot. We have worked tirelessly over the past 12 months to identify and fix as many stability issues as possible in OpenShot. 4K display | monitor support (High DPI)ĭownload OpenShot 3.0 and follow our step-by-step installation guide.Updated Language Translations & Translation System.

Improved User-Guide / Documentation / Help Manual.Ability to export multiple clips and videos at the same time.Timeline & usability improvements (snapping, keyframes, waveforms, default folders, and more).Enhanced real-time video playback performance.

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