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bad YouTube encodes
http://www.youtube.com/watch?v=2DS08dC6HP0
Above is a link to my HD YouTube video. I have been pulling my hair out over how crappy things look, both the standard and HD versions. I have read plenty of posts and as far as I know, am following things as instructed.
The trouble with the above is, it will not play in HD uninterrupted like other HD videos I have seen on YouTube. Why is that? It will stop, load a bit, play a bit, etc.
I am using FCP 6.0.5 and exporting a self contained QT movie of the sequence. I am dropping the movie into Compressor and using the settings provided here: https://www.kenstone.net/fcp_homepage/you_tube_hd_gary.html
I have tried this many ways, including exporting from FCP using QT Conversion, using Compressor, and finally exporting a self contained movie so FCP wouldn’t be all tied up.
I am using a 2X3 GHz Quad core Intel Mac running OSX 10.5.6 with 6Gb of RAM. Compresor is version 3.0.5.
This video originated and was edited in 1080i shot on a Sony EX1. I am wondering, why is the video stuttering? Why won’t it play through without interruption? And why does it look like it has some sort of noise or interference in the picture (ghosting).
I downloaded and tried the x264 codec, which yielded less than favorable results thru Compressor and (I think), “Export Using QT Conversion”. The video above was dropped into MPEG Streamclip and exported out of that to h264. It has been my best result so far, but I am not there yet.
With a 4 min video originating in HD, what are my best chances at upping the different settings without screwing anything up? What should I wxpect the max file size to be?
Streamclip has a quality slider which I blasted up to 100%. I selected a 1280X720 output, multi pass. Data rate was limited to 4000kb/s. I left the sound alone, upper field dominance, with the default interlaced scaling selected.
With one GB per movie allowable, how can I increase the settings on whatever choice of export, and maintain a smooth, crisp, playable video? The QT movie I compressed was 121 MB.
Am I encountering a YouTube thing, here?
I am still learning about how changing the different settings around can affect the final product. Unfortunately I haven’t seen a whole lot of difference no matter what I do or use- it’s like all choices yeild the same results.
I am very disappointed and frustrated as I did a bunch of checking beforehand to ensure I was on the right path. Guess I hit a fork in the road.
Thanks for any advice or help you can offer,
Semi
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7 Replies
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I just checked it out and it seems for the most part fine. The stuttering on your end may be your internet connection. Not that there’s necessarily a problem with the connection itself…there may be a lot of network traffic further upstream, and so to ensure everyone gets service, you’re bandwidth may be temporarily reduced. Pause the video and wait a little while, you’ll see the red bar go across as the video completely loads. Give it a bit of cushion before pressing play.
There’s two problems that I see with the video itself. Audio seemed out of sync by a couple frames, but it’s not that big of a deal, probably from the encoding. If you’re a stickler, you can dig into that. The other is the nice, smooth camera pan’s stutter a little. This is from the encoding process, and to combat this you would crank up the Deinterlace in the Retiming Controls to Better or Best, though this will increase your render time significantly.
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Thanks Dennis. I was reluctant to de-interlace because of the crazy render times. I had to leave something else cook overnight because it seems to take so long thru Compressor.
I agree about the camera pans. I will live with them in this instance if I can get the rest of my videos loaded with exceptional quality. Any advice on the file size being 121 MB? Since I have a Gig to use, can I increase the quality/filesize somewhere without having something else suffer? Or it is what it is?
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Sure, double (or more) your data rate in the quicktime video settings. May want to boost your saturation a little also, your vid looked a little washed out, but that may be just me. You can do that in the filters setting in Compressor
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Thanks for that. When you say double the data rate, is that in the encode to 264? Or is there something that I’m missing when I export to self-contained movie?
I’m not sure about the washout, I have to address one thing at a time. I exported out of Streamclip, so it might be suffering from the much talked-about “gamma shift”.
I looked at this vid at home and it still looks crappy, so I’ve got my work cut out for me.
Thanks,
Semi
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When you’re adjusting all your settings h.264 in Compressor, look at the inspector window. Click video settings. In the window that opens, in the upper right corner you can choose automatic or restrict. Set that to whatever number you’d like….I think it’s defaulted to 3000 for ken stones template, so you can double or triple that and be fine in this instance.
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Aha! I wondered about that, if increasing that number was related to the stuttery video!
So jacking up that data rate will potentially improve video quality without affecting speed of plaback, then.
Thanks!
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it will -potentially- help, but I still think your best bet is to up the deinterlace setting in the frame controls. But if you do that, increasing your bitrate definately won’t hurt your render time significantly.
Now keep in mind though, that what you output isn’t necessarily what youtube will broadcast. They will re-encode it on their end, to conform to their standards. And without knowing their workflow, it’s a crapshoot on exactly what is the best practice for upload. Which is why I prefer Metacafe.com and others. Ken Stone gives a pretty good general overview, with a good balance on render time, quality, and output size. If you have the luxury of time, you can always improve on it by increasing the various settings.
BTW, i think you may be correct on the gamma shift/color saturation thing.
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