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HDCAM Capture - Timecode Breaks Detected

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Andrew Saliga
HDCAM Capture - Timecode Breaks Detected
on Feb 10, 2011 at 11:54:43 pm

I'h having an issue where FCP is telling me there are timecode breaks on my tape, but I'm 95% sure this is a false positive. I've captured the first 10 or so hours of 60 without any issues.

Source is 1080i29.97 HDCAM from film transfers. Transfers are one straight pass, and there are no timecode breaks.

I know a fair amount about this deck, but we've only had if for about a month. Perhaps I'm missing something. I've reset to factory settings in an attempt to correct the issue. My black burst is connected and detected, and I've tried different 9 pin cables thinking somehow a bad cable may cause this.

Any suggestions welcome.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 11, 2011 at 1:43:18 am

Kona card?

Try the bottom message about "Serial device control and "Tape trouble" messages " if so:

http://support.apple.com/kb/HT1942

Jeremy


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Chad Brewer
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 11, 2011 at 2:28:26 am

Eh, FCP says that from time to time when the tape's timecode is fine.
This is assuming you've clip captured with I/O's.

If you have I/O clip captured the tape and your resulting Quicktime shows continuous TC in accordance with the tape, then I wouldn't worry about that warning message after capture. You should be fine. My theory (unproven) is that there can be brief hiccups in the bi-directional RS422 signal that makes FCP believe there was a break in the stream.

Again, if your captured file's TC is fine, I wouldn't worry.

Chad Brewer
Senior Broadcast Videotape Operator
TeleVersions, LLC


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 11, 2011 at 3:43:26 am

Jeremy- I'm using a Kona 3. All Kona and FCP settings should be correct as I've been capturing without any issues. I'll try creating that text file in the morning. I've never even heard of a fix like that.

Chad- The clips are being captured from a batch list. Timecode format is matches that of the tape. I can't get FCP to continue capturing though, it will randomly stop and seek timecode. I'm with you on thinking along the lines of the RS-422. I tried a different cable, but am still not 100% convinced. Tomorrow I'm going to try to capture from the DigiBeta deck in an attempt to rule out the cable.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Joey Burnham
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 11, 2011 at 6:55:26 pm

I know this is going to sound retarded but have you changed the user options to "warn after capture" and also rebooted your computer?
Joey


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Chad Brewer
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 12, 2011 at 12:20:29 am

[Joey Burnham] ""warn after capture""

That's what I was getting at earlier. Then, ignore the warning after capture because the TC is probably fine and the error was created by a transient polling issue which really didn't affect the TC that was captured. I see this all the time.

Chad Brewer
Senior Broadcast Videotape Operator
TeleVersions, LLC


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 11, 2011 at 7:08:39 pm

[Andrew Saliga] "Jeremy- I'm using a Kona 3. All Kona and FCP settings should be correct as I've been capturing without any issues. I'll try creating that text file in the morning. I've never even heard of a fix like that."

It changes the way FCP polls the deck via rs422. It's not a big deal and only happens on certain decks. Sony HDCam decks seems to have the most problems with it.

Jeremy


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Sam Cole
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 12, 2011 at 3:21:50 am

We have this problem often and we worked it out to be and FCP error as there were never any timecode breaks.
It happens more often capturing as ProRes HQ, as the CPU workload is much higher and I guess it just misses a timecode frame from the RS422 serial data.
There has to be a setting for FCP to allow 'how many continuous frames of timecode irregularity' before the error is reported - but there is not.

What we do after each capture is select all the captured media and select 'tools' >>> 'long frames' >>> 'mark' and then check there are no dropped frames.
Then, if timecode is crucial, we find a 'known frame' near the end of the tape (eg a cut) and compare the captured clips timecode with the tape to ensure they are the same.

Sam Cole
On line Mastering Facility
FCP, Avid, Adobe
Sydney, Australia


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John Heagy
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 12, 2011 at 5:16:51 pm

Make sure the tape is 29.97 and not 23.98. Playing a 23.98 tape in a deck set to 29.97 will cause FCP to abort on dropped frames. visa versa is true as well.

John Heagy


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 14, 2011 at 10:39:42 pm

Thanks for the input everyone. I've just been able to take another look at the deck this afternoon.

I went through all the deck settings again and also made sure "Warn after capture" was selected. So far so good. However, I realized I am capturing a different tape than I did on Thursday. If I encounter any issues, I'll start looking into the RS422 polling issues.

Very useful info everyone. I appreciate you helping out an HDCAM newbie.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Rafael Amador
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 15, 2011 at 1:52:14 am

Hi Andrew,
Before the next capture make sure the heads are clean.
Rafael

http://www.nagavideo.com


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:07:37 am

Quick followup...

This timecode has still been a nightmare. I just don't see it being actual TC breaks, since these are film transfers done by &Transfer. Could older tape have issues? Some of this is from the early '90s.

Jeremy- I tried that creating that text file. No luck.

Chad- I like your theory, but I FCP won't let me capture without interruption with these breaks. I do have the option checked to warn after capture, but this isn't a great solution. I have 60+ one hour tapes that I don't want to babysit :(

Sam- I wonder if this is a performance issue. The digitizing station I'm using has 2 Dual-Core Intel Xeons at 2.66GHz. I'm capturing to a SAN via fibre. Each core is hovering from 80-90%.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:17:44 am

Oh, I also took your advice Rafael and cleaned the heads. No luck.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:28:08 am

Hit up AJA. And have them send you the file. I have it at the office as well. I can send tomorrow.


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:33:46 am

Haha. Sorry Jeremy, poor communication on my part. I had no problems creating the file. The file did not solve my problem.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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John Heagy
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:39:52 am

Your FCP capture and deck are set for 29.97? And your sure none of these tapes are 23.98?


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:40:12 am

Something about your last post reminded me that the create your own file didn't work, but the AJA one did.

Let me find it, I know I have it. If THAT doesn't work then it's time to hit the eject button and call it a millennium.


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 4:44:35 am

Deck is at 29.97 and all tapes are 29.97. They are labeled on the spine, font and physical tape.


Thanks Jeremy. I'm apparently starting to lose my mind some what. FCP did give me a message after creating that text file.

"One or more unsupported enabler filters are installed. Blue render bars will appear in the Timeline to indicate areas of real-time playback that may drop frames as a result of this non-standard configuration."

I ignored it, as it didn't seem relevant.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:05:08 am

Found it on an old machine laying around here. I used to get this error a lot when I used to capture from tape (tape is not something I use too much anymore). This used to put that error away.

1649_disablealtettpolling.txt.zip

Give it a shot. Unzip and place in:

Library > Application Support > FCP System Support > Plugins

Jeremy


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:08:51 am

Awesome. I appreciate it Jeremy. Giving it a shot now.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:17:02 am

BY the way, you should restart.


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:25:25 am

Well, no error upon launching FCP, but still getting TC errors.

Can anyone think of anything else that could cause TC issues? Here is an overview or the system I have going.

HDCAM @ 1080i29.97
Sony HDW-F500 HDCAM Deck
SDI connection via AJA Kona 3
AJA Blackburst feeding to AJA breakout box, HDCAM deck and monitor
Capturing to a SAN via fibre
PreoRes 422HQ as capture codec
FCP 7
MacPro with two 2.66GHz Dual Xeons

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:30:07 am

Also, I'm digitizing via batch list.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Jeremy Garchow
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 5:49:42 am

Sorry about the plugin, it was worth a shot.

[Andrew Saliga] "Also, I'm digitizing via batch list."

I just reread that from your original post. Who made the batch list? The transfer house?

If you manually log and capture clips from that tape, is there breaks from that tape? Is there a non 29.97 tc number on there (like frames #s above 30)?


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Andrew Saliga
Re: HDCAM Capture - Timecode Breaks Detected
on Feb 18, 2011 at 6:32:19 am

No worries. It's good to know about at least.

Half the batch lists were exported from Avid bins. I received these on paper and they're older, so if a digital version exists, it's likely the ad agency doesn't know where it is.

The other half were created here, as the tapes were logged into a spreadsheet.

I did try parking the timecode before a problem area, hit play and did a "Capture Now". Still had issues.

I decided to get more methodical and I can't get consitant results...

I logged via FCP and entered the exact TC that appears on a problem clip. The first time I got a TC error before the capture was complete, even though FCP is set to warn after capture. Upon my second attempt I was able to capture without any errors.

I tried to capture the problem clip generated from the batch list again and this time it worked.

It seems that they all eventually work, but I have to babysit the process because it warns on a per clip basis, sometimes before even one clips is completely captured, rather than at the end of the batch capture process.

Andrew Saliga
I/O Specialist/Assistant Editor
Steelehouse Productions
http://www.steelehouse.com


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Mike Procunier
Re: HDCAM Capture - Timecode Breaks Detected
on Mar 9, 2011 at 8:53:32 pm

I was having the same problem yesterday. Every clip I tried to capture from HDCam experienced 'timecode breaks'. I gave the tape to another editor and he had no problems. I'm pretty sure its a disk speed issue. My buddy was capturing to a fibre-connected Rorke, while I was trying to capture to a temporary internal array, since my fibre-array hasn't arrived yet.
Perhaps your drive is too slow, fragmented, or there's some kind of bottleneck in your connection to the drive. Maybe run some kind of disk speed test. Its worth a try.



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