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ffmpeg SVCDs have ripples when actionis high motion?
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Mac Elite
Join Date: Jun 2001
Location: Utah
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Hi.
So I finally figured out ffmpeg (turns out I had an ANCIENT version of it...) and have been successfully making vcds and svcds.
The problem is that on my DVD player, the svcds have little ripples in sequences with high motion. It's difficult to describe..it's not artifacting, and it's not distortion. Well, maybe it is distortion. But it's not all "digitally" looking. Instead the video just seems to stretch horizontally in some weird kind of tiger-stripe. This doesn't render the video unwatchable. It's just annoying.
Any ideas?
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Dedicated MacNNer
Join Date: May 2001
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Originally posted by midwinter:
Hi.
So I finally figured out ffmpeg (turns out I had an ANCIENT version of it...) and have been successfully making vcds and svcds.
The problem is that on my DVD player, the svcds have little ripples in sequences with high motion. It's difficult to describe..it's not artifacting, and it's not distortion. Well, maybe it is distortion. But it's not all "digitally" looking. Instead the video just seems to stretch horizontally in some weird kind of tiger-stripe. This doesn't render the video unwatchable. It's just annoying.
Any ideas?
I seem to have the same problem, did you fix it?
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Mac Elite
Join Date: Jun 2001
Location: Utah
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Originally posted by gee308:
I seem to have the same problem, did you fix it?
Unfortunately, no....
My solution, for now, has been to use Cleaner to export to mpeg (it gets better quality than QT, allows for adjustments QT/Toast doesn't, and seems to be faster) and then use VCD builder to construct the VCD. Other than the graininess of my own cable signal, the images look great.
Cheers
Scott
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Dedicated MacNNer
Join Date: May 2001
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so you think I shouldnt use ffmpeg then?
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Mac Elite
Join Date: Jun 2001
Location: Utah
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Originally posted by gee308:
so you think I shouldnt use ffmpeg then?
Maybe not for now. I'm sure that once it gets out of beta it'll be rock solid, but right now it's got weird little problems (for me).
Cheers
Scott
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Dedicated MacNNer
Join Date: May 2001
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Originally posted by midwinter:
Maybe not for now. I'm sure that once it gets out of beta it'll be rock solid, but right now it's got weird little problems (for me).
Cheers
Scott
Maybe it might happen to be caused by your original source. My source was DV footage I taped. Before you ran your high quality footage(DV, DVD, or something else) through ffmpeg, what did you encode it in to feed to ffmpeg? The only thing I could use was "quicktime mov files without any quality lost", the highest setting, so in essence, a DV stream. The problem with that is that I only have a 30 GB HD. Was there another codec you could use that would allow to compress your stream a little before running it through ffmpeg? If I compressed, I would get grey "waves" running through my movie, but I didnt get the "digitized" problem at fast action scenes like you did. Check here for more details:
http://forums.macnn.com/62/digital-video-and-audio-archives/131800/newb-imovie-question/
TIA
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Mac Elite
Join Date: Jun 2001
Location: Utah
Status:
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Nope. My signal is dv all the way through. I'll give ffmpeg a try again at some point, I'm sure. For right now, though, I just want to make watchable VCDs of a few tv shows.
Cheers
Scott
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