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Video editing precision: Integer timebase solves frame rate inaccuracies

By PulseAugur Editorial · [1 sources] ·

This article delves into the precise arithmetic required for handling frame rates in video editing, particularly the discrepancy between the common nickname "23.976 fps" and its exact fractional representation (24000/1001). The author explains how using floating-point approximations for these rates introduces systematic errors, leading to frame drifts over time. To solve this, the proposed FilmCraft system uses an extremely high integer timebase (254,016,000,000 ticks per second) to represent all frame and audio sample positions exactly, avoiding floating-point inaccuracies and ensuring precise conversions between different frame rates. AI

RANK_REASON The article describes a specific technical solution (integer timebase) for a niche problem in video editing software development.

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Video editing precision: Integer timebase solves frame rate inaccuracies

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The article describes a specific technical solution (integer timebase) for a niche problem in video editing software development.
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  1. dev.to — LLM tag TIER_1 English(EN) · Programming Central ·

    # 23.976 is not a frame rate: inside ArtCraft's integer timebase

    <h2> One integer per position, one rational per conversion: a 254,016,000,000-tick timebase keeps a 25 → 23.976 EDL inside half a frame. </h2> <p>A 25 fps edit goes into a 23.976 project. The cuts land where they should — until cut 40, where the picture is one frame late. The fix…

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