2 pass encoding troubles.....

[Stevoo187]

Hey Guys,

I recently was trying to encode a movie and found that i when i went to video compression and clicked to configure the divx 5.05 codec, there was no option for 2 pass encoding, just: 1 pass, 1 pass quality, multipass 1st pass, and multipass nth pass. I tried both the multipasses and multipass 1st pass came out with no video and multipass nth pass had an error -100 whenever i attempted to save it as avi. What do i do??? Plz Help!

Steve

[jeffmd]

I belive if you select some of the profiles, they will open up a specific 2 pass (first pass/second pass), how ever divx has moved beyond just 2 passes now. Now there are I think 4 different pass algorythems it alternates through (in the same order). Thats nth pass. You first do a first pass, then you simply repeat with Nth pass as many times as you want. do it once for an effective 2 pass, or more times to gain even better quality video. For anything thats noth a full length movie, I use EIGHT passes. The first pass never writes any video, just the divx data file. nth pass rewrites the divx data and writes video data. If you do another Nth pass, the video data is over written and the divx data is re written and optimised even more.

[Stevoo187]

Now there are I think 4 different pass algorythems it alternates through (in the same order). Thats nth pass. You first do a first pass, then you simply repeat with Nth pass as many times as you want. do it once for an effective 2 pass, or more times to gain even better quality video. For anything thats noth a full length movie, I use EIGHT passes. The first pass never writes any video, just the divx data file. nth pass rewrites the divx data and writes video data. If you do another Nth pass, the video data is over written and the divx data is re written and optimised even more.

When i configure the codec to use Multipass Nth pass and then try to encode the file, there is an error -100 code and says that something might be wrong with video compression... know how to fix this??? :)

[Pat Logsdon]

Did you disable the profiles? Try that, then try encoding using multipass 1st pass. When that pass finishes, you should have an option in the drop down for multipass 2nd pass.

I THINK this is correct, but I'm doing this from memory - I'm using the 5.0.2 codec on this particular machine, but I've used a higher version with the settings you have in the past.

Good luck!

[Stevoo187]

thx for the help fellas... i forgot to check the MV file thing and after that it worked :mrgreen:

[Stevoo187]

hey i have a quick question...probably a stupid one.. but if i want to do 3 or 4 passes.. do i just save over the previous file again? Thx!

[jeffmd]

stevo, yes. just keep running npass till your hearts content... or your hd dies.. which ever comes first.

Im not sure what the deal with the mv file is. I used vdub to setups first and multi passes ahead of time so I dont need to be around while it does 8 passes, and ever since installing the latest divx, its been greyd out.

And if you are using divxpro, dont forget in profiles, uncheck all 3 boxs if you are doing pocketpc material. Also set pre processing to max.