Stuttering video when converting with dvd flick

[Ze Tomes]

SAMPLE OF ORIGINAL SOURCE (FLUID MKV)





SAMPLE OF CONVERTED FILE (DVD FLICK) SHOWING "CHOKE EFFECT"




NOTE: I suggest you take a look at the videos directly at youtube for a more accurate analysis. Don't confuse the normal choking youtube video processing (framed view) with "choke effect". It's very subtle at first eye. You can confirm that there is not "choke effect" if seeing the "sample of original source (fluid mkv)" directly at youtube


Brief description of the problem:

it exists at converted DVD Flick files from avi or matroska sources.

analogy: cycle of slightly choked motion fluidness (2seconds +-) like the 360º rotation of a camera marking a (x)degreeº pattern continuity (my best methapor a vectorial grid, or simply a tic-tac pointers clock marking seconds.)

Extended Description of the problem:

(take a look at this forum discussing a similar question - stutter effect)

I have a similar problem (choke, stutter, effect), although it happens NOT prior to conversion using DVD Flick, but exclusively AFTER, i.e., the original mkv file is perfectly good and fluid, the problem exists at the converted Flick video files (VOB, ISO).

I'm not quite sure I noticed this happening on every avi/mkv to vob videos conversions - i.e. I think several conversions resulted quite good without having the "choke effect" and being perfectely fluid, but, this is a very subtle visual effect so there's no accuracy by stating that.

I'm positive I notice this effect happening both on the converted movie (avi/mkv to VOB) at the DVD external player (tv) and in the computer (ISO experience).

After noticing this I tought it was the result of compressing bigger filles directly to DVD size standars (wondering if the original file needs previous compression or editing in opposition to direct conversion at DVD Flick) because I tought (not certain - these experiences take too long) equal or lesser than 4480 sized files (already virtually calculated decompressed) wouldn't suffer the "choke" effect.

I'm also not sure if I need to edit the file before I convert it to VOB by Flick software, if it's a Flick advanced configuration i should pay attention, if it's the software limitations, or if it's a question already mentioned at this forum like the codecs problematics or the bitrate deviation.

I wondered if having your RAM busy (anti-virus, firewall, etc) would interfere in the compression process resulting in the "choke effect". I think I also experienced it resting the RAM the most free possible. Not quite sure although about the final result of the RAM experiene nor if it's just optical suggestion.

---

Present Experiences

At this moment I'm converting a matroska file to mpeg-2 with any video converter, next optimizing FLik conversion, and finally converting it to an ISO file so that I can test it prior to burning.

During this process (Flick) I uninstalled k-lite codecs as it's sugested here.

thanks in advantage

[johns0]

Ze Tomes,i have moved your post to a new thread since it's not the same problem.

[Ze Tomes]

At this moment I'm converting a matroska file to mpeg-2 with any video converter, next optimizing FLik conversion, and finally converting it to an ISO file so that I can test it prior to burning.

During this process (Flick) I uninstalled k-lite codecs as it's sugested here.

The result (ISO image) kept signs of "stuttering", although very subtile with a larger cycle (3-5 secs)

---

Next I converted the original source (matroska file) directly to DVD Flick:

matroska file properties:

duration: 1:27:08
format: H264
frame size: 1920x1080
size: 7,96 GB

DVD Flick specific configurations:

target aspect ratio - widescreen
<project settings >

general >

encoder > above normal

video >

target format > PAL
encoding > best
target bitrate > auto-fit
<advanced>

log psnra values > ok
dc precision > 11

The result ISO file has similar properties to the usual "stutter effect" (2+- cycle sec.)

---

Now I'm going to test it first editing it on Any Video Converter.

[Ze Tomes]

Ze Tomes,i have moved your post to a new thread since it's not the same problem.

Thanks John this problem is indeed diferent although similar to the other; do you have any suggestion for it?

Cheers

[Ze Tomes]

I'm changing the metaphor "stutter" to "choke" (blocked, paused, distracted) effect for it seems more adequate to illustrate the problem. Wonderer would be my choice but i think it would become too much abstract.

the analogies:

stuttering
choking
blocked
paused
distracted
wonderer

and "the jerk frame" by jagabo

[poisondeathray]

youtube sample #1 is 24fps, no duplicates

sample #2 is 25fps, same duration (9sec) , but inserted duplicate frames causing the stutter to make up for the duration (higher fps, so you need more frames)

Youtube was known to do this in the past, but if you say it's not youtube's fault, then it must be your settings



check your dvd flick settings (maybe you're converting NTSC=>PAL improperly)

use mediainfo on your original file, and dvd flick output (view=>text)

if you still can't figure it out, upload original sample, and original dvd flick output

[jagabo]

Yes, it's trivial. The source was 24 fps, the converted file is 25 fps. It was converted by duplicating one frame out of every 24. Hence the one little jerk every second.

[poisondeathray]

I think avstodvd will use PAL speedup if you activate it

So instead of the jerk (inserted frame), it will speed both audio & video 4% to 25 fps

Most people would use the speedup method when converting NTSC=>PAL

[Ze Tomes]

youtube sample #1 is 24fps, no duplicates

sample #2 is 25fps, same duration (9sec) , but inserted duplicate frames causing the stutter to make up for the duration (higher fps, so you need more frames)

You have a very strong point I hadn't notice: I was totaly convinced of the opposite: 576i (PAL) having 24 fps and vice-versa. So It wasn't worth of attention while converting, just labeling PAL... right in front of my nose... Does a PAL tv support NTSC format?

Youtube was known to do this in the past, but if you say it's not youtube's fault, then it must be your settings

About this I am positive.

check your dvd flick settings (maybe you're converting NTSC=>PAL improperly)
use mediainfo on your original file, and dvd flick output (view=>text)
if you still can't figure it out, upload original sample, and original dvd flick output

In fact, I think I really am! But, at my previous experience (original mkv to mpeg-2) and after to Flick, the choke effect was manifested, although diferently from the improper ntsc-pal conversion.

Thank you very much for the precise suggestion!
I have to test more for further hypothesis

[poisondeathray]

Does a PAL tv support NTSC format?

That might be a better idea - make NTSC DVD

I'm not in PAL area, but I've heard 99% of PAL DVD players will play NTSC authored content

Maybe some PAL area members can confirm or refute this

[Ze Tomes]

That might be a better idea - make NTSC DVD

I'm not in PAL area, but I've heard 99% of PAL DVD players will play NTSC authored content

Maybe some PAL area members can confirm or refute this

I will, thank you very much poisondeathray for the help, it's been very elucidative! I'll keep on experiences.

and thank you also jagabo for the humouristic analogy :~)

This forum site is indeed great!

[Ze Tomes]

I converted the 24f mkv file to 25f with any video converter but the "jerk frame" persisted like with DVD Flick conversion.

There are some DVD multisystem players accepting either PAL and NTSC standards, but none of them is compatible with the other (my dvd player is a cheapy one... )

I'll try avstodvd at this time (boy, I would like DVD Flick would allow the same option - got attached to this program by its simplicity and efficiency)

[Ze Tomes]

I think avstodvd will use PAL speedup if you activate it

So instead of the jerk (inserted frame), it will speed both audio & video 4% to 25 fps

Most people would use the speedup method when converting NTSC=>PAL

Installed the program and zippo everything went perfectly, no choke, wonderer, stutter or jerk frames, perfectly fluid now.

Case Closed thanks to you!

Only a tinny matter, it only accepts one subtitle incorported. I guess i'm going to follow this process:

1st - edit it to a mpeg file with avstodvd
2nd - incorporate several subtitles with DVD Flick

let's see how it goes.

[tarheelsxxiii]

Hi all,

I am new to encoding video and I ran into similar "choking" problems with DVD Flick as well (even though, at times, it worked beautifully). I switched to AVStoDVD and found better success. However, I am still finding some movies to contain this choking when I play on my computer, ps3 and DVD. I am typing encoding 720p m4v files. I have not found much in the way of guides to explain the function of many of the preference settings for AVStoDVD. Is there somewhere I can find information to play around with and, hopefully fix, this issue? As of now, I switched from the default settings under the AviSynth to DirectShow and found some success there (really have very little knowledge of hCenc/1-pass vs 2-pass things). Issue still persists with many videos though, seems like it might be especially problematic with higher action videos.

Any help with this problem would be greatly appreciated.

Thanks!