Bitrate too high?

[Catman]

Hello! I converted one of my avi's to dvd using CCE 2.7 (don't know if it matters). The problem is that my standalone doesn't seem to be able to handle the bitrate I used (playback is choppy (don't know if this is the right word :) ) I used 9200kbps for maximum bitrate, there is one audio track with 448kbps and one subtitle. I think this should be dvd compliant...
So my question is: is this normal that a standalone can't handle that high bitrate? What maximum bitrate should I use then?
Thanks.

[Boulder]

CCE doesn't necessarily respect the maximum bitrate, I've seen it go way above the set limit. Some standalones don't tolerate this at all, fortunately mine does:D

Try opening the encoded file in Bitrate Viewer and see if there are some very high spikes.

[Catman]

Addition to the story. Now it seems that the problem is not the bitrate. When I play the source avi in media player, it is very smooth, and picture quality is excellent. Now when I put this avi into a frameserver (Avisynth or VirtualDub) playback gets choppy (is this the correct word for a situation when frame-drops seems to occur?), and also in some picture areas blockiness appears. What could be the problem? Is there a way to tell the frameserver to use a specific codec to decode the source?

[Catman]

I tried to flip the output of the xvid decoder. In media player it is flipped, but when I play the avs script, it is not flipped. So this means avisynth doesn't use the xvid decoder codec. How can I force it to use that specific codec?

[Catman]

Sorry for flooding. :) I just found the solution (hopefully). I use DirectShowSource() to load the avi, which uses the appropriate codec. It seems to work till now...

[Boulder]

Do you have any codec packs installed?

By the way, XviD has both DirectShow and VfW decoder (which AviSynth uses). You can reach the VfW decoder via VirtualDub's compression dialog, see the codec's properties. There's no option for flipping the video in v1.1 (VfW), only deblocking, deringing, film effect and brightness.

[Catman]

Yes, I have some codecs from an old nimo codec pack, but I also have a latest xvid codec.

[Boulder]

Do you happen to have any older XviD versions on the system? The new installer doesn't know how to uninstall some older versions so you should do that manually.

Codec packs are evil you know:devil:

[Catman]

Thanks Boulder, I will try that. :)

[freelock7]

I noticed that CCE can exceed sometimes the bitrate limit when the quantization factor is used.
It's not unusual to see many bitrate spike above 9000 and even 9500 kbs with a high bitrate limit=8000!
However, many DVD player can play it correctly because the quantization is increased to let the VBV
compliant.
I only encountered some problems (underflows) with a movie encoded in VBR2Pass with a high bitrate=9000.
I suppose that the reliability of quantization in VBR multipass is not perfect(?).