yt-dlp support

node_modules/unzipper/lib/parseExtraField.js

@@ -0,0 +1,37 @@
+var binary = require('binary');
+
+module.exports = function(extraField, vars) {
+  var extra;
+  // Find the ZIP64 header, if present.
+  while(!extra && extraField && extraField.length) {
+    var candidateExtra = binary.parse(extraField)
+      .word16lu('signature')
+      .word16lu('partsize')
+      .word64lu('uncompressedSize')
+      .word64lu('compressedSize')
+      .word64lu('offset')
+      .word64lu('disknum')
+      .vars;
+
+    if(candidateExtra.signature === 0x0001) {
+      extra = candidateExtra;
+    } else {
+      // Advance the buffer to the next part.
+      // The total size of this part is the 4 byte header + partsize.
+      extraField = extraField.slice(candidateExtra.partsize + 4);
+    }
+  }
+
+  extra = extra || {};
+
+  if (vars.compressedSize === 0xffffffff)
+    vars.compressedSize = extra.compressedSize;
+
+  if (vars.uncompressedSize  === 0xffffffff)
+    vars.uncompressedSize= extra.uncompressedSize;
+
+  if (vars.offsetToLocalFileHeader === 0xffffffff)
+    vars.offsetToLocalFileHeader= extra.offset;
+
+  return extra;
+};