cineform hdv intermediate has artifacts bad ones

David Thiel wrote on 5/16/2008, 10:54 AM
I doing pre production preparation for a project where there is 40 hours of HDV .mts 1440x1080 material that I am going to edit into video for computer playback.
I need to transcode it for editing.
Uncompressed works fine but is big. Sony SUV works fine but is still big.
So cineform looks attractive but I cannot get anything that is acceptable. I have tried all kinds of permutations but I get something that looks like this
http://cid-cd0e17091a1e1d24.spaces.live.com/photos/cns!CD0E17091A1E1D24!124/

I am going to pick a 1040 x 768 framed portion of the 1440x1080 for the final output but at this point I just need to choose an intermediate format to get rid of the overhead of the mpeg4 codec.

ideas...

thanks in advance

David Thiel

Comments

jabloomf1230 wrote on 5/16/2008, 1:01 PM
I think that we might need a bit more information from you to be of any help. Are you using the Cineform Intermediate template that's part of Vegas to reencode the mts files? The Cineform codec version included with Vegas 8 Pro is 2.8. The standalone version of the Cineform HDV codec is at Version 3.3. If you're using the old Vegas version, there are all kinds of possibilities for the results that you have gotten so far. The most likely explanation is that the file is in fact, encoded properly, but it is just not playing back properly. There is a way of fixing THAT problem, because Cineform provides a free download on their website called Cineform Neo Player. It contains a new version (3.3) of the Cineform codec, but this version can only be used for decoding. For more information, either visit the Cineform message board at :

http://dvinfo.net/conf/forumdisplay.php?f=76

or Google this issue, using the appropriate key words. The Dvinfo.net forum has a sticky that specifically discusses the use of Cineform with Vegas 8. My experience is, that you need to purchase the standalone Cineform codec (Neo HDV) to make it work flawlessly with Vegas.
David Thiel wrote on 5/16/2008, 1:19 PM
Yes, I am using the Cineform intermediate template that came with Vegas Pro 8 to reencode the mts file.
I am using 2.8 version.
Thanks for the link. I will try it out.
If it is within the budget of the project I will also consider just buying the Cineform codec since my clients have saddled me with this media, I have a lot of it and I will have to use it.

thanks for you help

david
Laurence wrote on 5/16/2008, 1:27 PM
I've had the Cineform codec produce artifacts like that when I tried rendering to unstandard frame sizes. Cineform seems to work fine for 1440x1080, 1280x720, 720x480 and 720x576. It seems to get kind of strange if you select unstandard sizes though, whereas the Pegasys MJPEG codec for instance can do whatever size you want it to.
David Thiel wrote on 5/16/2008, 1:40 PM
Laurence:"I've had the Cineform codec produce artifacts like that when I tried rendering to unstandard frame sizes."
That's interesting. I kept running trials with a 5 minute sample, each time getting more conservative until I rendered out at stock setting 1440x1080. Still no joy. Thanks for the pegasys tip.

I dug a little further - even though the template says Cineform 2.8 when I look at the properties of the resulting file:

General
Name: MJ6_cineform hdv native.avi
Folder: K:\Aud4Int\Filter\Power Shell\Monday
Type: Video for Windows
Size: 2.31 GB (2,362,434,048 bytes)
Created: Friday, May 16, 2008, 09:32:51
Modified: Friday, May 16, 2008, 09:41:46
Accessed: Friday, May 16, 2008, 13:20:36
Attributes: Archive

Streams
Video: 00:03:45.592, 29.970 fps, 1440x1080x32, CineForm HD Codec V3.3.0
Audio: 00:03:45.592, 48,000 Hz, 16 Bit, Stereo, Uncompressed

CineForm HD Codec V3.3.0. Now that is interesting.

I downloaded the free CineForm NEO Player and still no joy. Maybe I need to reboot to get the codec to be noticed? I tried Media Player and I get the same artifacts.
http://cid-cd0e17091a1e1d24.spaces.live.com/photos/cns!CD0E17091A1E1D24!124/

While I haven't purchased Cineform directly I may still ask a question on their site.

I'll let you know what it takes to get rid of this.

ddt
David Newman wrote on 5/16/2008, 4:07 PM
Maybe you have encoded with a newer verion and decoding with an old. There is a bug in Vegas8 that sometimes it loads the wrong decoder. To prevent this error, rename the cfhd.dll component in program files/Vegas Pro 8 directory. If this doesn't fix things, send a short clip to support by filing a troublt ticket with www.cineform.com/support.

David Newman
CTO, CineForm
Serena wrote on 5/16/2008, 4:09 PM
No, you don't need to reboot. There is something unsatisfactory in your workflow. 40 hours of HDV is a lot of data, but presumably the final length will be less. Assuming that you don't have the capacity or time to convert it all to DI, I would do a rough cut with m2t and render that to avi using cineform (maintaining full frame). You can finish the cut and reframe. I guess you could complete the cut in m2t before generating the DI. Maybe "reframe" isn't the right reading? If you want that frame size for output, do that in rendering.
David Thiel wrote on 5/16/2008, 4:33 PM
You are right, 40 hours of HDV is a lot. Ultimately the output of this project will be 40 5-25 minute videos. There were two HDV cameras with for 4.5 days. If I have my way we will end up using less than 15% of the HDV since most of the useful moving pictures are Camtasia captured screen.
Still to figure out what I need, I still need to see them sync'd with audio.
The good news is that the second camera rarely has anything useful enough to bother with so I am going to start with intermediates only for camera A.

So, I downloaded the 15 day trial of CineForm Neo HDV and voila, clean intermediates. I don't have time to fight a war over why the Sony version of the CineForm codec codes as caca. Even after I had the HDV codec loaded the Sony Cineform coded files were unusable.

So the answer is, spend $250, advance to GO.

I spend $200 bucks to add a 1.2 terrabye RAID 0 array to hold the intermediate so now it will just be rendering time. It should only take 60 hours to create intermediates for 20 hours, by next week I can be editing.

ddt
johnmeyer wrote on 5/16/2008, 7:23 PM
Serena,

Great suggestion for the workflow. Makes tons of sense.