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Preview compatible fragmented MP4 transfers while saving the verified copy

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Jonathan Sykes
2026-10-03 20:43:03 +08:00
parent 795a5aaed4
commit 5661eea6e6
7 changed files with 67 additions and 4 deletions
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3
frontend/direct-protocol.js
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@@ -7,7 +7,8 @@
function file(v) {
if (!v || !id(v.id) || !/^[a-f0-9]{64}$/.test(v.cid) || !Number.isSafeInteger(v.size) || v.size <= 0 || v.size > 4 * 1024 ** 3) return null;
if (!text(v.title, 300) || !text(v.channel || '', 200)) return null;
return { id: v.id, cid: v.cid, size: v.size, title: v.title, channel: v.channel || '', duration: Number.isFinite(v.duration) && v.duration >= 0 ? v.duration : 0 };
const streamMime = typeof v.streamMime === 'string' && /^video\/mp4; codecs="avc1\.[a-f0-9]{6}(, mp4a\.40\.2)?"$/.test(v.streamMime) ? v.streamMime : '';
return { streamMime, extension: /^(mp4|m4a|webm|ogg|opus|mkv|mp3|wav|aac)$/.test(v.extension) ? v.extension : 'mp4', id: v.id, cid: v.cid, size: v.size, title: v.title, channel: v.channel || '', duration: Number.isFinite(v.duration) && v.duration >= 0 ? v.duration : 0 };
}
function parse(value) {
if (typeof value === 'string') { if (value.length > 65536) return null; try { value = JSON.parse(value); } catch { return null; } }