Finding out the BitRate of my DivX

[RATM]

Hello, i am trying to find out the bitrate of my DivX movies.
i have tried opening the movie in VirtualDub and using File->File Information but i havn't yet to realize what is the actual bitrate from the info VDub give me:


The movie is LOTR the retail DVD Rip by DVL so it's supposed to have a BitRate of 1161 Kbit SBC, but i want to be able to know the Bit Rate of all my movies regardless of what the NFO says.

[agzz]

simply rightclick the file.

see data rate under the summary tab

[RATM]

No go...
It says 202 Kbps, that can't be right.
I am using Win XP Pro.

[RATM]

Do I need to multiply or divide by something in oreder to get the data rate in kbits?

[agzz]

take the video bitrate add the audio bitrate and then multiply with 8.
(i think)

[RATM]

~4000.
I don't think so.

[KingJohn]

Dont see the lenghth of your movie, but this might help

[desired size] / [length in seconds] = [total bitrate]

[total bitrate] - [audio bitrate] = [video bitrate]

How can we calculate the actual size of MPGE file which will be crated?
If you choose CBR, The fillowing equation can be used to calculate. "2048/2018" stands for bitrate of system stream.

Filesize (Kb) = (Video+Audio) x (2048/2018) x sec/8

E.g. Video is 1150Kbps, audio is 224Kbps, 15 sec MPEG file would be "(1150+224) x (2048/2018) x 15/8" = 2614KB

What is bitrate?
Bitrate means the number of bit which go through the stream per 1 sec. Stream maens the MPEG file.
Generally, compression is described by bitrate in MPEG. The higher bitrate, the higher quality and lower compression, larger file size.
If the bitrate is same at any part on a sigle stream, it is called as CBR (Constant Bit Rate).

VBR(Variable Bit Rate). In VBR, the bitrate can be different depends on the part of stream.

[RATM]

Thank you!
You sure have helped me alot.