Caption Matrix Decode

1"use client";
2 
3import { Timegroup } from "@editframe/react";
4import type { CSSProperties } from "react";
5 
6export interface CaptionWord {
7  text: string;
8  start: number;
9  end: number;
10}
11 
12export interface CaptionMatrixDecodeProps {
13  words?: CaptionWord[];
14  color?: string;
15  fontSize?: number;
16  fontWeight?: number | string;
17  background?: string;
18  speed?: number;
19  fps?: number;
20  durationInFrames?: number;
21  width?: number;
22  height?: number;
23  className?: string;
24}
25 
26const DEFAULT_WORDS: CaptionWord[] = [
27  { end: 0.35, start: 0, text: "Every" },
28  { end: 0.65, start: 0.35, text: "great" },
29  { end: 1, start: 0.65, text: "video" },
30  { end: 1.45, start: 1.1, text: "starts" },
31  { end: 1.65, start: 1.45, text: "with" },
32  { end: 1.8, start: 1.65, text: "a" },
33  { end: 2.15, start: 1.8, text: "single" },
34  { end: 2.7, start: 2.15, text: "frame." },
35  { end: 3.2, start: 3, text: "No" },
36  { end: 3.9, start: 3.2, text: "timelines." },
37  { end: 4.2, start: 4, text: "No" },
38  { end: 4.5, start: 4.2, text: "drag" },
39  { end: 4.65, start: 4.5, text: "and" },
40  { end: 5.1, start: 4.65, text: "drop." },
41  { end: 5.55, start: 5.3, text: "Just" },
42  { end: 6, start: 5.55, text: "code." },
43];
44 
45const WORDS_PER_GROUP = 3;
46 
47export const CaptionMatrixDecode = ({
48  words = DEFAULT_WORDS,
49  color = "#00ff41",
50  fontSize = 80,
51  fontWeight = 700,
52  background = "#0a0a0a",
53  speed = 1,
54  fps = 30,
55  durationInFrames = 180,
56  width = 1280,
57  height = 720,
58  className,
59}: CaptionMatrixDecodeProps) => {
60  const safeSpeed = Math.max(0.01, speed);
61  const durationMs = (durationInFrames / fps) * 1000;
62 
63  const groups = [];
64  for (let i = 0; i < words.length; i += WORDS_PER_GROUP) {
65    const groupWords = words.slice(i, i + WORDS_PER_GROUP);
66    groups.push({
67      endMs: ((groupWords.at(-1)?.end ?? 0) * 1000) / safeSpeed + 180,
68      startMs: (groupWords[0].start * 1000) / safeSpeed,
69      words: groupWords,
70    });
71  }
72 
73  const containerStyle: CSSProperties = {
74    background,
75    height,
76    overflow: "hidden",
77    position: "relative",
78    width,
79  };
80 
81  return (
82    <Timegroup
83      className={className}
84      duration={`${durationMs}ms`}
85      mode="fixed"
86      style={containerStyle}
87    >
88      <>
89        <style>{`
90          @keyframes framecn-cmd-grp-in {
91            from { opacity: 0; }
92            to   { opacity: 1; }
93          }
94          @keyframes framecn-cmd-grp-out {
95            from { opacity: 1; }
96            to   { opacity: 0; }
97          }
98// … truncated