36 function parseUintNLE(buffer, position, bytes) {  argument
40     num += buffer[position + i];
45 function parseUint32LE(buffer, position) {  argument
46   return parseUintNLE(buffer, position, 4)
49 function parseUint64LE(buffer, position) {  argument
50   return parseUintNLE(buffer, position, 8)
53 function mp4Decoder(buffer) {  argument
54   var dataStart = findFirstInArray(buffer, WINSCOPE_META_MAGIC_STRING);
59   var frameNum = parseUint32LE(buffer, dataStart);
63     timeline.push(parseUint64LE(buffer, dataStart) * 1000);
66   return [buffer, timeline]