返回 html-video
captions.html
1 <template id="captions-template">
2 <div
3 data-composition-id="captions"
4 data-width="1920"
5 data-height="1080"
6 data-duration="__VIDEO_DURATION__"
7 >
8 <div class="captions-container">
9 <div id="caption-box" class="caption-box">
10 <span id="caption-text" class="caption-text"></span>
11 </div>
12 </div>
13
14 <style>
15 [data-composition-id="captions"] .captions-container {
16 width: 100%;
17 height: 100%;
18 display: flex;
19 justify-content: center;
20 align-items: flex-end;
21 padding-bottom: 230px; /* Position at y: 850 (1080 - 230 = 850) */
22 pointer-events: none;
23 }
24
25 [data-composition-id="captions"] .caption-box {
26 background-color: #7a6248;
27 padding: 12px 32px;
28 border-radius: 24px;
29 display: flex;
30 justify-content: center;
31 align-items: center;
32 min-width: 100px;
33 max-width: 80%;
34 opacity: 0;
35 box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
36 }
37
38 [data-composition-id="captions"] .caption-text {
39 color: #f5f0e0;
40 font-family: "Outfit", sans-serif;
41 font-size: 48px;
42 font-weight: 700;
43 text-align: center;
44 line-height: 1.2;
45 white-space: nowrap;
46 max-width: 1600px;
47 overflow: hidden;
48 }
49 </style>
50
51 <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
52 <script>
53 (function () {
54 const script = [
55 { text: "We", start: 0.119, end: 0.259 },
56 { text: "asked", start: 0.319, end: 0.479 },
57 { text: "what", start: 0.519, end: 0.659 },
58 { text: "you", start: 0.699, end: 0.819 },
59 { text: "needed.", start: 0.859, end: 1.819 },
60 { text: "Forty-seven", start: 1.86, end: 2.299 },
61 { text: "percent", start: 2.399, end: 2.679 },
62 { text: "of", start: 2.7, end: 2.799 },
63 { text: "you", start: 2.839, end: 2.939 },
64 { text: "said", start: 3.039, end: 3.179 },
65 { text: "motion", start: 3.24, end: 3.559 },
66 { text: "graphics,", start: 3.579, end: 4.599 },
67 { text: "sixty-two", start: 4.679, end: 5.179 },
68 { text: "percent", start: 5.299, end: 5.759 },
69 { text: "said", start: 5.859, end: 5.98 },
70 { text: "static", start: 6.079, end: 6.399 },
71 { text: "content", start: 6.46, end: 6.879 },
72 { text: "was", start: 6.92, end: 7.079 },
73 { text: "costing", start: 7.099, end: 7.48 },
74 { text: "you", start: 7.5, end: 7.579 },
75 { text: "attention,", start: 7.679, end: 8.659 },
76 { text: "and", start: 8.699, end: 8.86 },
77 { text: "three", start: 8.88, end: 9.06 },
78 { text: "out", start: 9.079, end: 9.18 },
79 { text: "of", start: 9.199, end: 9.34 },
80 { text: "four", start: 9.38, end: 9.799 },
81 { text: "said", start: 9.84, end: 10.0 },
82 { text: "you", start: 10.019, end: 10.159 },
83 { text: "know", start: 10.179, end: 10.36 },
84 { text: "the", start: 10.38, end: 10.42 },
85 { text: "look", start: 10.519, end: 10.699 },
86 { text: "you", start: 10.739, end: 10.859 },
87 { text: "want", start: 10.98, end: 11.34 },
88 { text: "but", start: 11.359, end: 11.52 },
89 { text: "don't", start: 11.56, end: 11.779 },
90 { text: "have", start: 11.819, end: 11.94 },
91 { text: "the", start: 11.96, end: 12.06 },
92 { text: "editing", start: 12.079, end: 12.4 },
93 { text: "skills", start: 12.52, end: 12.86 },
94 { text: "to", start: 12.88, end: 13.0 },
95 { text: "get", start: 13.019, end: 13.18 },
96 { text: "there.", start: 13.22, end: 14.22 },
97 { text: "So", start: 14.239, end: 14.399 },
98 { text: "we", start: 14.42, end: 14.52 },
99 { text: "built", start: 14.619, end: 14.88 },
100 { text: "Hyperframes.", start: 15.079, end: 16.02 },
101 ];
102
103 // Group words into lines (max 5 words per line)
104 const lines = [];
105 for (let i = 0; i < script.length; i += 5) {
106 const lineWords = script.slice(i, i + 5);
107 lines.push({
108 text: lineWords.map((w) => w.text).join(" "),
109 start: lineWords[0].start,
110 end: lineWords[lineWords.length - 1].end,
111 });
112 }
113
114 const tl = gsap.timeline({ paused: true });
115 const box = document.querySelector('[data-composition-id="captions"] #caption-box');
116 const textEl = document.querySelector('[data-composition-id="captions"] #caption-text');
117
118 lines.forEach((line, index) => {
119 // Fade in and set text
120 tl.set(box, { visibility: "visible" }, line.start);
121 tl.to(
122 box,
123 {
124 opacity: 1,
125 duration: 0.1,
126 ease: "power2.out",
127 onStart: () => {
128 textEl.textContent = line.text;
129 },
130 },
131 line.start,
132 );
133
134 // Fade out at the end of the line
135 tl.to(
136 box,
137 {
138 opacity: 0,
139 duration: 0.1,
140 ease: "power2.in",
141 },
142 line.end,
143 );
144
145 // Hard kill to ensure caption is hidden
146 tl.set(box, { opacity: 0, visibility: "hidden" }, line.end + 0.1);
147 });
148
149 window.__timelines = window.__timelines || {};
150 window.__timelines["captions"] = tl;
151 })();
152 </script>
153 </div>
154 </template>
155
155 lines HTML