DVD bitrate calculator.

[furball6969]

There seems to be a fair bit of confusion as to how much video data will fit on a DVD-R when an authoring program prepares a DVD folder so to help out I've coded a DVD bitrate calculator.

It is located here:
http://divxx.freeyellow.com/furballdvd-bitrate.rar

First off, It works on my PC (obviously) but I don't have any others running to see if other support files are needed so, please, if any other files are needed let me know right away so I can supply them.

The program does account for muxing overhead - as much as possible. I only tested the calculations with one authoring program and a single one hour file so I am not guaranteeing that it's going to be accurate.

[furball6969]

There is an update at:
http://divxx.freeyellow.com/dvdstuff/furballdvd-bitrate0667.rar

I was '' this close to finishing and was pretty much just minimizing the code when I broke pretty much everything but I did manage to compile this exe before I broke everything.

These are some of the changes:

Added user specified 'Extra Data' field to leave a
specified amount of space on the disc for extras and Rom
content.

Added CD-R selections for MiniDVD creation.

Added CD-R sizes for x/s/VCD in RAW sector sizes

Added Lots of error handlers.

Added 50 MB default extra space 'just in case'.

You shouldn't be able to break or crash the program with all the extra error handlers but if you try to input wierd values, expect to get wierd values in return.

Have fun.

Steve

[Earthbulb]

Hi Steve

Awesome program. Will you be updating it ? It would be cool if there was a suggested VBR to use also. Have you seen the calculator here

http://pwp.netcabo.pt/0165394101/TMPGEnc_Calculator.html

I just entered 2 hours with 256 ac3 audio and 150meg extra space needed into your calc and it gave me 4.451 Mbps as the encoding rate, but i would like to use VBR for 2 hours footage and a higher maximum bitrate than 4.5. Im just wondering if i use 4500kbps average and 9000 maximum im likely to exceed the disk size arent i ?

It would be coolto see a VBR suggestion in there also...

Great work though..

[furball6969]

Hi Earthbulb,

The ability to accurately produce a video file at a specified VBR lies with the encoder. You will most likely need to use multi-pass encoding to acheive that.

I'm glad you brought that up because there was going to be a point in the text file about VBR and accuracy.

I will be updating the program. I'm currently adding some more selections under media sizes for mulitple CD encoding.

Good luck.

Steve

[furball6969]

There is another update 0.668.

This is pretty much the final unless someone finds a huge error or something.

The only thing I might do is check some of the mux overhead values for VCD's and SVCD, and see how accurate they are.



http://divxx.freeyellow.com/dvdstuff/furballdvd-bitrate0668.rar

Have fun.

Steve

[furball6969]

The latest version of the program is available here:

http://divxx.freeyellow.com/dvdstuff/furballdvdcalclatest.rar

[furball6969]

Ok, last update, I promise.

I've added a user adjustable mux overhead scale. Its available only with the mpeg audio selection but if you do a lot of encoding you should be able to fine tune it after a couple of encodes to be accurate for anything, including DivX, only with CBR or Multi-pass of course.

For DivX, you'll need to select the ISO cd's not RAW.

http://divxx.freeyellow.com/dvdstuff/

[Scobo]

Nice one furball6969 !
I've been looking for a decent DVD bitrate calculator for a while.
They're pretty scarce and this one does a great job.

[miketree]

FurBall

I get 'Component MSCOMCT2.OCX or on of its dependecies not correctly registered: a file is missing or invalid' error

running win2k.

[furball6969]

miketree,

I have located and archived the mscomct2 files and uploaded them to the programs home page. They should reside in /winnt/system32/.

http://divxx.freeyellow.com/dvdstuff/

Sorry about the Freeyellow spam, really annoying that is.

[furball6969]

Changes:

Added a Divx selection.

Added a 'bps' bitrate output value.

Tightened up the interface a bit.

http://divxx.freeyellow.com/dvdstuff/

Thanks for the input people!

have fun.

Steve

[furball6969]

latest updates:

Release status has been upgraded to RC1.

Fixed some media size calculaitons.

Tightened up the code a bit.

Reduced the default amount of space set aside on each disc by about half.
So now 25MB for DVD-R and 5-7 MB for CD.

Added 'Alt +' access keys for all functions.

Available here:

http://divxx.freeyellow.com/dvdstuff/furballdvdcalclatest.rar
http://divxx.freeyellow.com/dvdstuff/furballdvd-bitrate0675.rar

Good luck.

Steve

[furball6969]

I thought I was done but it seems that some are needing a reverse calculation. I.E. 'What length of video can I fit on a disc at this bitrate?'

Currently working on it, and is almost done. I will try to verify the calculations tomorrow or the next day and post the new EXE.

[furball6969]

I've decided to release the alpha version with the new changes with source code.

http://divxx.freeyellow.com/dvdstuff/fdbcalpha.rar

Most stuff works, just a few bugs.

[furball6969]

Yes, another update.

The reverse calculation routine is finished now and the interface has been changed and updated a bit.

Also, the web site address has changed to my spamless Shaw home page; I know how annoying Freeyellow spam is.

I also fixed the link to the alpha release with the source code.
http://members.shaw.ca/dvdguy/dvdstuff/fdbcalpha.rar

The link to the latest release is in my Sig.