Divx 5 Movie Color Problems

[CamperBlaster]

I'm pretty new at this. I recently upgraded to GKnot 0.28 and ripped Fellowship of the Ring. It worked fine, except the color is all wrong. It seems to be missing red, and skin color is blue. I used Divx 5 with the default settings. What did I set wrong? Can I change the avi or do I have to redo it?

When I load the avi in gknot it doesn't show the full height of the movie, but the color seems right there.

Thanks for any help...

[jggimi]

First thought: If your display is set to 16-bit color, you can have these kinds of problems. DivX requires 24-bit or higher.

Second thought: Some video cards have difficulty with displaying certain resolutions of video. If you left the modulo settings at Gknot's defaults (32/16), then this wouldn't impact you, but if you alterted them, this is a possibility to consider.

Third thought: If neither of these fit, try copying and pasting your _Gknot.log file here.

[CamperBlaster]

Originally posted by jggimi
First thought: If your display is set to 16-bit color, you can have these kinds of problems. DivX requires 24-bit or higher.

Second thought: Some video cards have difficulty with displaying certain resolutions of video. If you left the modulo settings at Gknot's defaults (32/16), then this wouldn't impact you, but if you alterted them, this is a possibility to consider.

Third thought: If neither of these fit, try copying and pasting your _Gknot.log file here.

I verified 32-bit true color. I also tried other movies to verify they look right, and they do.

I verified that 32/16 were still set.

Attached is the log file. Thanks for the response.

[jggimi]

Well, I looked through your log and didn't see anything related to this particular problem. But perhaps someone more expert than me will see somthing there.

You might try opening your .avs in your AVI player, and see if the problem remains. If it looks like the colors are correct in the .avs, then you know it's something in the encoding. If it's wrong in the .avs, then you know it isn't the encoding, and the problem might be in the script, such as an AviSynth filter doing it.

I did see something else in the log, though. You are muxing the AC3 audio, but your initial audio size is for a much smaller mp3. You'll note your estimated (and comp tested) bitrate are very different from your final video bitrate, due to jumping from 100MB+ to 400MB+ of audio. You may not like the video due to that, if nothing else..

[scharfis_brain]

you may add SwapUV() to your AVIsynthscript.
Does this help?

[CamperBlaster]

Originally posted by jggimi
Well, I looked through your log and didn't see anything related to this particular problem. But perhaps someone more expert than me will see somthing there.

You might try opening your .avs in your AVI player, and see if the problem remains. If it looks like the colors are correct in the .avs, then you know it's something in the encoding. If it's wrong in the .avs, then you know it isn't the encoding, and the problem might be in the script, such as an AviSynth filter doing it.

I did see something else in the log, though. You are muxing the AC3 audio, but your initial audio size is for a much smaller mp3. You'll note your estimated (and comp tested) bitrate are very different from your final video bitrate, due to jumping from 100MB+ to 400MB+ of audio. You may not like the video due to that, if nothing else..

I tried Winamp and Windows media player to open the .avs and it doesn't recognize the file type.

For the audio, what's the proper way to set up for ac3? I put audio A at 128k.

[CamperBlaster]

Originally posted by scharfis_brain
you may add SwapUV() to your AVIsynthscript.
Does this help?

Thanks for the response.

I don't understand this. How do I add this and what is it for?

[scharfis_brain]

Just add SwapUV()at the end of your AVIsynthscript (the .AVS-File!)

SwapUV swaps the Colorchannels (U & V) this "negates" your colorinformation, while luma is left untouched.

[jggimi]

I tried Winamp and Windows media player to open the .avs and it doesn't recognize the file type.AviSynth, when installed properly, allows the text script file to act as a synthetic .avi file, which will serve uncompressed video to any .avi player. This is the same thing that Vdub does when it uses the script as the source for encoding.

If your trouble was your avi player couldn't find the file because it ends with .avs rather than .avi, just type in the complete file name, or search for "all files" rather than standard player file types.

If, instead, you got an error message on opening the .avs script, can you quote it?For the audio, what's the proper way to set up for ac3? I put audio A at 128k.Your ac3 file will vary in bitrate, all the way from 192kbps for a DD2.0ch track, to 448kbps for a DD5.1ch track. The bitrate is part of the file name. But that bitrate selector is an estimator prior to transcoding from ac3. Instead, just select the ac3 file rather than estimating a bitrate. Press the Select button in the Audio A box and select the file.

[CamperBlaster]

I appreciate everyone's help. I've got it working. For some reason Winamp seems to be the problem. I upgraded Windows Media Player to the latest version and it looks fine, but the colors are still wrong with Winamp.