114 lines
2.4 KiB
Vue
114 lines
2.4 KiB
Vue
<template>
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<form @submit="onSubmit">
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<input type="text" v-model="q" />
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<button type="submit">Submit</button>
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<video
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v-if="videoSrc"
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controls
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ref="video"
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:src="videoSrc"
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@loadeddata="onVideoLoad"
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></video>
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</form>
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</template>
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<script setup lang="ts">
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import { ref, useTemplateRef } from "vue";
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const q = ref("");
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const videoSrc = ref("");
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const videoEl = useTemplateRef("video");
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function onSubmit(ev: SubmitEvent) {
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ev.preventDefault();
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if (!q.value) return;
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const src = "/" + q.value;
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const isSameSrc = videoSrc.value === src;
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videoSrc.value = src;
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if (isSameSrc) {
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// Force load
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onVideoLoad();
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}
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}
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function onVideoLoad() {
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const ws = new WebSocket("ws://localhost:8080");
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const vid = videoEl.value!;
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const q_value = q.value;
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ws.onmessage = (ev) => {
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const { name, ts } = JSON.parse(ev.data);
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switch (name) {
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case "seek_q_ts":
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(async () => {
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for (const t of ts) {
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const b = await new Promise<Blob | null>((resolve) => {
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vid.onseeked = () => {
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const v = videoEl.value!;
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let c = document.createElement("canvas");
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c.height = v.videoHeight || parseInt(v.style.height);
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c.width = v.videoWidth || parseInt(v.style.width);
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const ctx = c.getContext("2d")!;
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ctx.drawImage(v, 0, 0);
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ws.send(
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JSON.stringify({
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name: "timed_q",
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q: q_value,
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t,
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}),
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);
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c.toBlob((b) => resolve(b));
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};
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if (typeof t === "string") {
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const [min, sec] = t.split("_");
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vid.currentTime = parseInt(min) * 60 + parseInt(sec) + 1;
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} else {
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vid.currentTime = t;
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}
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});
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if (b) ws.send(b);
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vid.onseeked = null;
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}
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ws.send(JSON.stringify({ name: "done", q: q_value }));
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})();
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break;
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}
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};
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ws.onopen = async () => {
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ws.send(
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JSON.stringify({
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name: "download_q",
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q: q_value,
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duration: vid.duration,
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}),
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);
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};
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ws.onclose = () => {};
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}
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</script>
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<style scoped>
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form {
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margin: 0.5em 0;
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}
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form * {
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border: 1px solid gray;
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}
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button {
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margin-left: 0.5em;
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cursor: pointer;
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padding: 0 0.5em;
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border-radius: 5px;
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}
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</style>
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