What is the meaning of several parameters in the POST request of the Javascript-b station to send the barrage?

Using Chrome to capture the request when the B station sent the barrage, it was found that there were two parameters in formdata that were not understood.

1.pool is the number of the barrage pool.
2.fontsize is the font size
3.cid is the user ID
6.message is the content of the barrage I sent.
7.mod is the screen mode (i.e. top, scroll, etc.)
8.playtime is the time that appears in the video, in S, which can be accurate to 3 digits after the decimal point.
9.color is the color number

But there are two that I don't quite understand are Rnd and date. Since there is no video AV number in the formdata he submitted, I think the Rnd and date should be related to the AV number and the current time, Rnd I suspect that it is a random number generated by the Open interface, and date should be the result of the current time being processed by some algorithm.

Has anyone seen this formdata? Can you guess how Rnd and date are generated?

Reply content:

Using Chrome to capture the request when the B station sent the barrage, it was found that there were two parameters in formdata that were not understood.

1.pool is the number of the barrage pool.
2.fontsize is the font size
3.cid is the user ID
6.message is the content of the barrage I sent.
7.mod is the screen mode (i.e. top, scroll, etc.)
8.playtime is the time that appears in the video, in S, which can be accurate to 3 digits after the decimal point.
9.color is the color number

But there are two that I don't quite understand are Rnd and date. Since there is no video AV number in the formdata he submitted, I think the Rnd and date should be related to the AV number and the current time, Rnd I suspect that it is a random number generated by the Open interface, and date should be the result of the current time being processed by some algorithm.

Has anyone seen this formdata? Can you guess how Rnd and date are generated?

Has solved the problem, RND randomly generated 9-bit random number, date is timestamp, B station automatic bomb screen script has been completed, thanks for the answer.

Is date not a timestamp, if the number of digits is not possible is the millisecond level, the other one will not know, and then send a barrage to see if the Rnd has changed

The date should be the timestamp of the send, in milliseconds.
Rnd may be random? Random number?

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