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Thread started 15 Dec 2008 (Monday) 12:30
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5D Mark II Video - Compressing Problems

 
osv
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Dec 17, 2008 21:37 |  #16

BrantG wrote in post #6883798 (external link)
My Computer can handle the original videos just fine. However if I want them on my website and not kill my bandwidth, I don't want them to to be over 100MB each. I'm trying to get them down to 20MB or under.

oh, so it's web video you are encoding... uploading the source video out of the camera won't help solve this problem, all you need is some encoder tweaking.

to give you an idea of the encoder settings to target... i encode flash at 960x540x30fps, 600kbps variable bitrate video, 112kbps stereo audio, two-pass encoding with squeeze 5.


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osv
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Dec 17, 2008 21:40 |  #17

garyo wrote in post #6883937 (external link)
Could I ask you guys what software you use for uploading video from the Mk11 onto your computer? I have the canon software provided but all it talks about is uploading 'stills'. I'm running a new iMac. Thanks

wrt to avchd, macs need to keep the entire folder structure intact when importing the files into an editing app... pcs just need the video files by themselves.

doesn't the camera have a usb plug on it? have you tried using imovie to import and edit the video?


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BrantG
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Dec 17, 2008 21:44 |  #18

osv wrote in post #6899724 (external link)
oh, so it's web video you are encoding... uploading the source video out of the camera won't help solve this problem, all you need is some encoder tweaking.

to give you an idea of the encoder settings to target... i encode flash at 960x540x30fps, 600kbps variable bitrate video, 112kbps stereo audio, two-pass encoding with squeeze 5.

I will get Premier tomorrow and try to get it installed as well. I'll try these settings and see how it goes.


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beznadan
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Dec 17, 2008 22:58 |  #19

garyo wrote in post #6883937 (external link)
Could I ask you guys what software you use for uploading video from the Mk11 onto your computer? I have the canon software provided but all it talks about is uploading 'stills'. I'm running a new iMac. Thanks


I was able to get the videos off using DPP. They show up with a video camera icon in the same place that the stills say RAW on the frame of each pic. I was also able to open the card up and pull them off in the Finder when I used a card reader (I usually (or well, used to) pull pics directly off the camera using Lightroom, but these files are so giant that it might be time to reconsider...).


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Dec 19, 2008 09:48 |  #20

Finally had a chance to try Premier. Uploaded the file to YouTube.

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osv
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Dec 19, 2008 13:09 |  #21

that lion footage is clean!! using youtube to serve up your video can be a really good idea.

consider uploading to youtube in the 720p format, because the quality of the resizing in premier should be better than the quality of the youtube resizing... just keep the bitrate really high when you resize the clip.


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Dec 19, 2008 17:26 |  #22

osv wrote in post #6909665 (external link)
that lion footage is clean!! using youtube to serve up your video can be a really good idea.

consider uploading to youtube in the 720p format, because the quality of the resizing in premier should be better than the quality of the youtube resizing... just keep the bitrate really high when you resize the clip.


I'll have to keep that in mind. Thanks!!!


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dslrvids
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Dec 21, 2008 01:14 |  #23

Transcode all my clips in a batch using MPEG Stream Clip to XDCAM 30FPS VBR before importing into editor. Makes playback not choppy while on the timeline. Image quality loss is hardly noticeable and files seem to be 10 percent smaller than h264. Then export back to h264 after final render. The only other good option for transcoding if you have the hard drive space would be Apple ProRes 422? Dealing with h264 is a beast!

here is a sample clip going from h264 to XDCAM exported back to h264.

http://www.vimeo.com/2​581629 (external link)




  
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BrantG
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Dec 21, 2008 10:00 |  #24

dslrvids wrote in post #6918830 (external link)
Transcode all my clips in a batch using MPEG Stream Clip to XDCAM 30FPS VBR before importing into editor. Makes playback not choppy while on the timeline. Image quality loss is hardly noticeable and files seem to be 10 percent smaller than h264. Then export back to h264 after final render. The only other good option for transcoding if you have the hard drive space would be Apple ProRes 422? Dealing with h264 is a beast!

here is a sample clip going from h264 to XDCAM exported back to h264.

http://www.vimeo.com/2​581629 (external link)

I downloaded MPEG STream Clip and do not see an option for exporting as XDCAM is that a Mac only option or am I missing it?

Thanks.


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osv
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Dec 21, 2008 11:57 |  #25

there are multiple versions of xdcam, but afaik, it is all mpeg2, which means that you'll take a hit in picture quality, and every editing generation that you re-encode to will introduce conatenation errors.

imho, stick with prores, it's not as lossy, and it should play back on the timeline pretty well(?)


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5D Mark II Video - Compressing Problems
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