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Jittering from DV PAL to DVD standard 90 min (using compressor)
Hi,
Seems I’m not done wit jitter issues. Last time was the original file, this time the exported.
Simply speaking, the video filmed on a MiniDV PAL tape, imported via FCP with PAL settings (.mov file), and exported as it is, mening without any changes, transitions… only in and out point to test the video, using compressor with the dvd 90 min preset, it jitters.
The imported video (mov) doesn’t.
The m2k exported video does.
I watched it on the mac, not on TV.Camera used: NV-GS24 Panasonic. (Everything but pro/semi pro)
Anybody know why?
I know I can use the deinterlace filter, but seems that it blurs the image. If there is any other solution, that would be great.
Thanks
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9 Replies
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I provide the imported/exported settings:
Those are the settings of the imported video (funny video width and fps):
General / Container Stream #1
Total Video Streams for this File……………..1
Total Audio Streams for this File……………..4
Video Codecs Used……………………………DV
Audio Codecs Used……………………………PCM / PCM / PCM / PCM
File Format…………………………………QuickTime
Play Time…………………………………..30mn 7s
Total File Size……………………………..6.38 GiB
Total Stream BitRate…………………………30.3 Mbps
Encoding Library…………………………….Apple QuickTime
Video Stream #1
Codec (Human Name)…………………………..DV
Codec (FourCC)………………………………dvcp
Frame Width…………………………………703 pixels
Frame Height………………………………..576 pixels
Frame Rate………………………………….24.983 fps
Total Frames………………………………..45165
Display Aspect Ratio…………………………4:3
Video Standard………………………………PAL
Scan Type…………………………………..Interlaced
Color Space…………………………………YUV
QF (like Gordian Knot)……………………….2.416
Video Stream Length………………………….30mn 7s 856ms
Video Stream BitRate…………………………24.4 Mbps
Video Stream BitRate Mode…………………….CBR
Bit Depth…………………………………..8 bits
Video Stream Size……………………………6.06 GiB (95%)
Video Stream Language………………………..English
Date of Original Encoding…………………….UTC 2010-10-05and those the settings of the exported one:
General / Container Stream #1
Total Video Streams for this File……………..1
Video Codecs Used……………………………MPEG-2 Video
File Format…………………………………MPEG Video
Play Time…………………………………..4mn 43s
Total File Size……………………………..209 MiB
Total Stream BitRate…………………………6 190 Kbps
Video Stream #1
Codec (Human Name)…………………………..MPEG Video
Codec Profile……………………………….Main@Main
Frame Width…………………………………720 pixels
Frame Height………………………………..576 pixels
Frame Rate………………………………….25.000 fps
Total Frames………………………………..7084
Display Aspect Ratio…………………………4:3
Video Standard………………………………PAL
Scan Type…………………………………..Interlaced
Scan Order………………………………….BFF
Color Space…………………………………YUV
QF (like Gordian Knot)……………………….0.573
Codec Settings (Matrix)………………………Default
Video Stream Length………………………….4mn 43s 360ms
Video Stream BitRate…………………………5 938 Kbps
Video Stream BitRate (Nominal)………………..7 700 Kbps
Video Stream BitRate Mode…………………….VBR
Bit Depth…………………………………..8 bits
Video Stream Size……………………………201 MiB (96%) -
You might want to post this topic in the compression Techniques forum of the Cow. They folks over there are pretty good at solving these kind of scenarios.
Chad Tingle
Producer/Editor -
Do you mean by jitter that when something moves it jitters?
thats a field order issue and I don’t see it on your list.
you may need to switch it from lower to upper and encode again.
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@Chad: I wrote here because I think it’s a FCP problem, if I find out that it deals with compressor, I’ll move to the Compressor section of the forum.
@Chris: yes, it jitters when the camera pans. But you can see it a bit also when the camera is still. It’s weird because PAL by default is Lower Field First, not Upper.
Anyway, I tried to change the parameter, but when I click file>export>using compressor, that’s what happens, doesn’t matter if lower or upper field are selected (see attached imgs).
In the compressor window you can notice the jitter thing. Even if the video preview is paused and no preset is selected. Can you see the difference between the fcp window and the compressor windows?FCP window
compressor window lower field
compressor window upper field“If you don’t know what it is, it’s JAZZ!” – Novecento (A. Baricco)
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[Giacomo Sardelli] “because PAL by default is Lower Field First, not Upper.”
PAL is always upper field on every codec except DV. How did you capture it as the frame size and frame rate info is non standard. Did you get the info from FCP or Quicktime.
There is usually no problem going from DV to DVD via Compressor as it converts the fields to upper. There may be a problem with field order somewhere in the chain. Do you view on an external monitor via an I/O card (Decklink, Kona, Matrox?)
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My bad!
I’m always confused about field dominance.
I got the info from “MediaInfo Mac”, a free software which tells all the metadata of video files. FCP says 25 fps 720×576. Weird. I captured it with FCP, Log and Capture process went well, no frame-dropping messages. I wonder…is it normal that FCP saved the file as a .mov? I thought it would save it as a .dv file, though the clip properties say “compressor: DV – PAL”Unfortunately I’m just an amateur and the only hardware I use is just my MBPro and an external firewire HDD.
Tomorrow I’ll try to export the video with different settings ona dvd-rw and test it on my dvd player.
I’ll come back with more detailed information.
Thanks everybody for your help, so far!“If you don’t know what it is, it’s JAZZ!” – Novecento (A. Baricco)
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FCP captures quicktime files so it would be a quicktime mov in DV codec, not a .dv.
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I’m back, with new info.
I did some tests, here the results:
As you can see, best result with LCD TV, LFF.
Acceptable LFF on CRT TV.
Bad and disturbing to view with UFF, on both TV.The last footage, taken with a D5000 is just a bit flickering but just because was taken at 24 fps and I dind’t speed it up to match 25 fps, but the overall impression is fine.
Can’t the jittering thing be due to the low quality of the camera?
“If you don’t know what it is, it’s JAZZ!” – Novecento (A. Baricco)
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how do you find all these like number of frames in mpeg file. number of gop in one mpeg file and how many times a pack header present in mpeg file…………..
if you having detail documentry of mpeg format please mail me.
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