Avisynth video quality

[onholder]

Hi,

We are using Avisynth to overlay text on a video, then re-saving the video as an avi. We're finding that the video quality of the output avi is far lower than the quality of the input avi. In some cases, the output avi even seems to morph between color and black and white, and occasionally has some ghosting problems. Can anyone suggest where we might start looking for the problem? I understand that the quality of the input video has much to do with the quality of the output video, but in this case, the output quality is far lower than the input. Thanks!

Bruce

[HymnToLife]

Aren't you just using too high compression when saving the AviSynth output to AVI?

[Guest]

What is your output compression codec and what bitrate did you set?

[Blue_MiSfit]

If you're doing effects, and plan on using the video for something later (sounds like you might be editing), then output to a lossless codec!

HuffYUV, Lagarith, etc... are all good choices... Or Xvid @ CQ1 with a high bitrate matrix and no B-Frames :)

~MiSfit