bframe decoder lag

[robotica71]

im trying to burn an xvid movie onto a dvd using cyberlink power director but im getting the mesage bframe decoder lag,what does it mean,and how can i correct it,in laymans terms please.

[guns1inger]

Not sure exactly what the cause it, however the only solution I have found is to use a directshow filter to load it, such as ffdshow. If you cannot use ffdshow in Power Director you may be able to use avisynth to load the video using DirectSHowSource instead of AVISource.

[celtic_druid]

It is generated by older versions of XviD's VfW decoder (newer versions just do a black frame) and the cause is VfW. It simply wasn't designed to handle advanced stuff like bframes.

Directshow (XviD, ffdshow or whatever) doesn't suffer from the same limitations.

Next time you might want to encode with packed bitstream enabled. With packed bitstream VfW is able to handle bframes.

[robotica71]

ive tried ffdshow,which worked fine untill halfway through the burning process,which filters and settings do i need to use when burning?

[guns1inger]

You don't use any when burning, just when encoding ?

Can you detail your process ?

[robotica71]

i open cyberlink power director,click on xvid movie file,then powerdirector begins to encode to dvd i.e creating menus and chapters,which takes roughly half an hour,then it begins to burn,which fails at the end.ffdshow audio and video decoders are running in the system tray.Do i need to create a new file by decoding with ffdshow first,then use the newly decoded file with powerdirector?

[guns1inger]

cyberlink will have used ffdshow to load and read the Xvid compression. ffdshow will then remain open as long as cyberlink holds it open - probably until you close it down. It should not affect the burning process, so problems there are most likely down to a different cause.

I would suggest what you need to do it get better software and follow a different process.

I also don't believe that cyberlink can encode the xvid in only half an hour.

Do you have an option to output to the HDD instead of burning ?

[robotica71]

not sure if i can output to hdd,can you recommend some better software?

[guns1inger]

avisynth -> CCE Basic (to keeps costs reasonable) -> Video
virtualdubmod -> Uncompressed wav -> ffmpeggui -> AC3 audio

TDA to bring it all together.

CCE and TDA are payware, everything else is free.

[robotica71]

thanks,what would happen if i did burn the file onto dvd with the bframe decoder error message?i can play data discs on my dvd player,so if i made the data disc would the error still exist.

[guns1inger]

Generally it isn't a problem. You *might* see it for a brief glimpse at the start of play, you might not. Where it does become a problem is when you are joining two files together and it comes up in the middle. It is also one of the cause of 2nd-half-sync-problems when joining files.

[robotica71]

its just one file or do you mean the audio and video are two seperate files?contained within one file, ARGHHHHHHHHHHHHHH.

[celtic_druid]

If you join files, then you wouldn't get it in the middle unless you re-encoded. As I said, it is generated by the decoder, it isn't part of the actual stream.

ffmpeg can handle an avi source by the way. No need to decode/split the audio first.

[guns1inger]

If you frameserve out of virtualdub to an encoder, you will see this message in the encode.

[celtic_druid]

That is because VDub uses VfW. You would onlt get it at the start if you appended two files though.