DVDit error: data exceeded multiplexable bit rate

[fielt80]

I have recorded a show with a dvb-s card in mpeg-2

After that, the demuxing in DVDit is going perfect.

However with multiplexing i get the following error:

data exceeded multiplexable bit rate
(DVDit! returns an error when the bit rate of an MPEG file suddenly increases faster than DVDit! can handle.)

IN the mpeg-2 stream that i am using there are a few Data peaks (above the 10 mb/sec, according to bitrate viewer)

I have tried to transcode the file (to lower the bitrate) in M2-edit Pro with bad results (blocks etc)

If only this file would have a more gradual change in bit rate i would not get this error message.

Does anyone know a possible solution to this problem

Ronald

[Arky]

Perhaps you could frameserve it to CCE and drop the bitrate that way (for example, using a variation of the Robshot Method (http://doom9.org/mpg/dvdencoding.htm))


Arky ;o)

[fielt80]

Thanks a lot for your help.

Here is what i did:

demuxed is DS-Jar
opened *.mpv file in DVD2AVI
saved project file
opened VFAPI converter and made "avi"
Opened "avi" file in CCE
try to encode (choose one pass VBR)

error message: couldn't find appropriate video codec

[Arky]

In the .zip archive that VFAPI was downloaded in, you will also find a codec which you need to install before you can read the VFAPI virtual AVI files. Check that you have done this, and then get back to me.

Regards,


Arky ;o)

[fielt80]

Thanks for all your help. I am making progress.

Here is what i did:

1)made VOB files with Spruceup from the mpeg file with had the peaks in the bitrate.

2)Openened the largest VOB file in DVD2AVI
(saved project file and audio file was generated: audio-output method-demux)

3)opened VFAPI converter and made "avi"

4)Opened "avi" file in CCE and checked the following by other settings-video: (after analazing the VOB file with bitrate viewer. results:Pic. structure: Frame Field topfirst: Yes,DCT type: Frame,Quantscale: Nonlinear,Scan type: Alternate,Frame type: Interlaced )
add sequence end code, progressive frames, linear quantizer scale, zigzag scanning order(?) and DVD compliant (?)
All other settings were as described in the manual

5)after encoding i had a very good mpv file (quality was great and no waterm.)

6)Opened this file in DVDit and i opened the audio file that was generated by DVD2AVI.

7)However in the preview of DVDit both files were no longer synchron

Is there a way to synchronize those files ?

[fielt80]

There was only no synchronization in the preview of DVDit

When i burned it this problem was solved, however the picture is shaking when there is fast camera movement

This must have something to do with the video settings in CCE

I don't know which one it can be.

[Arky]

Ordinarily, the first thing I'd say is switch the field order when you encode, but you seem fairly sure that it is top field first, SO, I suggest you do the following:

Put the Cinemacraft encoded MPEG file somewhere safe on your HDD, then repeat the encoding session with everything identical except for the being sure to use the following settings (and bear in mind that I am trusting your report that the source material is top field first!):


Field topfirst: Yes

DCT type: 10

Scan type: Alternate (NOT zigzag scanning order)

Frame type: Interlaced

Add sequence end code

progressive frames - NOT ticked!

DVD compliant - don't bother ticking this.


Then, making sure that the file name is exactly identical to the previous encoded file, open up DVDit! and recompile the project. If you have done everything correctly, DVDit! should not notice that you swapped encoded files and should recompile without a hitch. Then test the result. If you STILL see juddering, then repeat the above settings for a 3rd encode, but be sure to make Field topfirst:= NO. Then repeat the re-import process and recompile to test the result.

Then get back to me with your results.

You're doing pretty well so far, so have faith :)


Arky ;o)

[fielt80]

You were right. It was the field order. Apparently the bitrate viewer
is not refering to the fieldorder with Field topfirst. (may be other software can give a more accurate result)

I did not ticked, upper field first, and the results were great (smooth and not jerky anymore)

I did however had to lower the bitrate (with max on 9800000) some peaks were going above 10 mb/sec and i have the feeling that this is exactly what DVDit doesn't like when giving the error: Data exceeded multiplexable bit rate in stead of a not so gradual change in bit rate.

So basicly i only had ticked : Add sequence end code. I did not change the GOP settings, i don't know if that was a good idea.
I did Deactivate the Anti noise filter however.

I never thought that i would solve this problem especially because
the whole procedure seems to be rather complicated.

Yes you are right. I am doing pretty well, only because you let me to. Thanks a lot !!!