FAVC video artifacts

[midders]

Hi there

I've recently used FAVC (with HCEnc) to convert two MKV files to DVD, but the resulting video shows an odd jerkiness when the whole screen is zooming in or out that is not present in the original. It's as if intermediate frames are missing.

I've tried other programs (ConvertXtoDVD, DVD Flick) and the jerkiness is gone, but the general video quality is worse and there are other video artifacts present. Is there any way to get rid of this problem whilst retaining the excellent video quality that FAVC/HCEnc produce?

Sláinte

midders

[guns1inger]

Without knowing anything about the source and what encoding options you selected, it is impossible to say what has happened. Perhaps you could supply more details ?

[steptoe]

If the source was NTSC (23.976 or 29.99 FPS) and FAVC has converted it to PAL (25 FPS) then thats where your 'jerkiness' is coming from, some video conversion software tries to be helpfull and convert whatever video source to your countries video standard, screwing up the FPS in the process


Convertxtodvd just converts to source to DVD without converting the framerate, if you selected the option that your country can handle NTSC and PAL it will simply convert the video without touching the FPS

The quality will be worse as convertxtodvd gets its speed by cutting corners as do all video conversion softwares that have very high conversion rates, convertxtodvd software authors are totally oblivious to the fact that people want to use 3rd party encoders to get better quality, but get the advantages of convertxtodvd. They just repeat the same answers over and over

HCEnc or other external encoders get much better quality as the video is usually decoded, then rebuilt to match as high a bitrate as possible, so it takes much longer as its encoding the video again from scratch


Try other software, AVI2ISO also can use HCEnc, but with the greatly added bonus of being able to alter the avisynth script before it starts encoding so you can add or remove filters or add filters to improve the source with deblocking, degrain, noise removal, etc, etc. It works perfectly with very complex functions which others just can't handle without giving out script errors. And if the FPS is incorrect you can change it to what it should be

[guns1inger]

FAVC uses HCEnc, and if it is converting NTSC 23.976 fps to PAL, or PAL to NTSC, it uses the pulldown method to avoid jerkiness.

ConvertXtoDVD will convert framerates if you tell it to, and also uses pulldown to do so if it can.

[midders]

If the source was NTSC (23.976 or 29.99 FPS) and FAVC has converted it to PAL (25 FPS) then thats where your 'jerkiness' is coming from, some video conversion software tries to be helpfull and convert whatever video source to your countries video standard, screwing up the FPS in the process

MediaInfo reports the following:
First Video Stream - English, 1081 Kbps (1150 Kbps), 880*368 (2.35), at 23.976 fps, AVC (High@L5.1) (CABAC / 10 Ref Frames)
so it looks like you're on the money, steptoe.

Thanks for all your help guys, I think I have enough info to have another bash at it now, I'll let you know the results when my (somewhat out-dated!) laptop has finished number crunching.

Sláinte

midders

[guns1inger]

I would convert it with FAVC to NTSC DVD. There is no need to convert it to PAL, and nothing at all to be gained by doing so.