20 lines
490 B
JavaScript
20 lines
490 B
JavaScript
var toUnsigned = require('../utils/bin').toUnsigned;
|
|
|
|
var getUint64 = require('../utils/numbers.js').getUint64;
|
|
|
|
var tfdt = function tfdt(data) {
|
|
var result = {
|
|
version: data[0],
|
|
flags: new Uint8Array(data.subarray(1, 4))
|
|
};
|
|
|
|
if (result.version === 1) {
|
|
result.baseMediaDecodeTime = getUint64(data.subarray(4));
|
|
} else {
|
|
result.baseMediaDecodeTime = toUnsigned(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
module.exports = tfdt; |