Color streaks appears once converted to Xvid

[24fps]

Hi all,

First please take a look at the png attached


This was originally an MP4 file, 852x480 @ 24fps. Now here's what I am trying to do.

1. I dropped it in Sony Vegas, edited it a bit and did some color correction.
2. Exported it in a HQ 2-pass xvid file.
3. Playback through Media Player, VLC and KMplayer looks fine
4. What I want to do next is convert to 48fps with an avs script. When I open it in Vdub through the script that's what I see.

Here's another workflow I tried:

1. Open the original MP4 file through the 48/50/60 conversion script in Vdub and it looks fine, no color streaks
2. Exported it in a HQ 2-pass xvid file.
3. Playback through Media Player, VLC and KMplayer looks fine
4. If I drop it again in Vdub it looks fine but if I open it through the script again the streaks are back.

I've converted dozens of files through workflow #1 and this never happened, it only does so with this file. Now that I've taken Vegas out of the equation (through workflow #2) I know that it is not the culprit.

Any ideas?

I've also attached the script just in case you want to see it, again though, I want to stress that the script has not given me this result on ALL files I converted through ot so far except for this one.

Thanks in advance,

Phil

[Gavino]

Does it work if you run the script single-threaded (ie remove the SetMTMode command)?

Incidentally, the script does not convert to 48 fps.
It converts 25 to 50, 30 to 60, and everything else to 59.94.

[24fps]

Hi Gavino,

I gave a go and it is still the same.

BTW I know this particular script only convert to 50/60. I actually have a new code that will only double the frame rate ie: 24 to 48. It's just that the script I attached hasn't been modified yet

Anything else?

Thanks

[Gavino]

To try and identify the source of the problem, try the following experiments:
- open the script directly in a player (ie outside of VDub);
- replace DirectShowSource by FFvideoSource (requires ffms2 plugin).

[jagabo]

That type of problems is usually the result of a frames size that's not supported by the decoder. The sample picture you uploaded was 844x360. If that's the actual frame size of the video it's mod4 horizontally and mod8 vertically. Both of those should be supported by all modern MPEG 4 part 2 decoders. But just to be sure change the frame to 848x360 (848 is mod16) or 848x368 (both mod 16) and see if that helps.

[24fps]

a 1000 thanks !!!

Indeed the pic I upload was not the original file resolution but merely the resolution the jpg has once I created the snapshot with the snipping tool.

The original file was in 852x480. So, through my workflow #1, I rendered it out of Vegas in 848x480 and when I tried to open the recoded file in Vdub through the script it looked perfectly allright.

Thanks again !

Phil