73 lines
2.1 KiB
JavaScript
73 lines
2.1 KiB
JavaScript
async function compress() {
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showSection("loading");
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const filesize = document.getElementById("filesize").value;
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const filesizeUnit = document.getElementById("filesize-unit").value;
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const file = document.getElementById("file-input").files[0];
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updateProgress(0);
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const ffmpeg = new FFmpegWASM.FFmpeg();
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ffmpeg.on("progress", data => {
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console.log(data);
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updateProgress(data.progress);
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});
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await ffmpeg.load({ coreURL: "/assets/scripts/core/package/dist/umd/ffmpeg-core.js" });
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await ffmpeg.writeFile(file.name, await readFromBlob(file));
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await ffmpeg.exec(["-i", file.name, "-preset", "veryfast", "-fs", filesize + filesizeUnit, "compressed.mp4"]);
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const video = await ffmpeg.readFile("compressed.mp4");
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location.href = URL.createObjectURL(new Blob([video.buffer], { type: "video/mp4" }));
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}
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function updateProgress(progress) {
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const percent = (progress * 100).toFixed(1) + "%";
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document.getElementById("progress-percentage").innerText = percent;
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document.getElementById("progress-indicator").style.clipPath = `rect(0 ${percent} 100% 0)`;
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}
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function openFileSelector() {
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document.getElementById("file-input").click();
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}
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function selectFile() {
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setTimeout(() => {
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const file = document.getElementById("file-input").files[0];
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document.getElementById("uploaded-video").src = URL.createObjectURL(file);
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document.getElementById("uploaded-video").load();
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hideElements("#file-drop-area", "#file-input-spacing");
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showElements("#uploaded-video", "#change-file");
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}, 200);
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}
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// https://github.com/ffmpegwasm/ffmpeg.wasm/blob/main/packages/util/src/index.ts
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function readFromBlob(blob) {
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return new Promise((resolve, reject) => {
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const fileReader = new FileReader();
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fileReader.onload = () => {
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const { result } = fileReader;
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if (result instanceof ArrayBuffer) {
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resolve(new Uint8Array(result));
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} else {
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resolve(new Uint8Array());
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}
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};
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fileReader.onerror = (event) => {
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reject(
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Error(
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`File could not be read! Code=${event?.target?.error?.code || -1}`
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)
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);
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};
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fileReader.readAsArrayBuffer(blob);
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});
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}
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