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Compressor & Quicktime Error-50
Hi All,
I’ve been trying to solve this problem on my own for the last few days but have had it. I am trying to export my 1hr sequence (DVCPro HD720p60) through compressor and it fails every time with H.264 as well as the MPEG-4 LAN Streaming compression. Each time it starts off ok but then gives me this quicktime error-50. I am using QT 7.1.6 with FCP 5.1.4. I have 5 gigs of ram, 4×2.5 GHz G5.
I have read through past posts and see that many people get this error but no real solutions or work around.
Thanks in advance for any help.
Mike
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12 Replies
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I’ve had the same problem with Error -50. It’s a sporatic issue though. If you figure it out please post back. I’m very interested in the answer.
-Nicholas Bierzonski
Editor/DVD Author/Java Boy
http://www.finalfocusvideo.com -
Forgot to mention that I am using Compressor 2.3 and Batch Monitor 2.
Mike
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Does it say anything else besides error 50?
Does it quit out at the same time all the time? If so, what’s going on in the sequence right there?
Are you exporting a reference movie or just going straight form FCP to Compressor?
JEremy
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It quits the compression and brings the job to the history and says it failed: Quicktime error-50. I have tried to pinpoint the exact spot in the sequence but haven’t been able to. I thought maybe it was a bad permission or something but I’ve updated all the permissions for all the media to read and write.
Also, I tried to output using Quicktime Conversion and it crashed FCP.
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It makes me think something is wrong in your timeline. Have your tried exporting a Quicktime movie (not quicktime conversion). If you have time, I’d delete all of your render files using the Tools > REnder Manager… and then rerender.
Jeremy
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Thanks I think your right. It’s something just in my first act. I exported just the second act and it worked fine.
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I actually watched the compressor progress and found (approximately) the frame that was causing the failure. I then went into my sequence and by switching the sequence from timecode to frames, typed in where the compression failed and found the source of the failure. As I thought, it was a filter that was used to make some stylization . In this sequence, it was a filter called Light Ray. I made a new sequence with the same sequence settings, copied the clips used for the effect and pasted them into the new sequence. I then set an in and out and exported a self contained quicktime file. I import this file and place it back into the sequence and because I exported it with the same settings as my current sequence it does not need to be rendered. Then I move on and try to find the next instance of the effect that will cause the output to quit. I do the same thing over and over again until it’s all fixed.
Hope this helps someone else and saves hours.
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Hi,
Any ideas about why compressor would give a quicktime error 50 on an already exported QT (I don’t even have the project file for this anymore). I’m attempting to encode it for the web as QT h.264. It is a 3 minute piece. Codec is DV/DVCPRO-NTSC 720×480, Integer (Big Endian). I’m on a G5 Power PC dual 2.7 w/ 5g of ram.
Thanks. -
So far as I noticed it seems like a permissions issue when it tries to pass one QT file off to another. I only get it when I try to do Job Chaining in Compressor. I get a lot of HDV Long Gop files that need to be scaled down to stream into H.264. I found that going from HDV to H.264 resulted in choppy playback. So I tried converting into ProRes and scaling down first, then using the ProRes file to make the H.264. Playback seems much smoother at lower data rates.
But the Job Chaining never works. Tried it on different files. Converting the HDV to ProRes takes a bit, but works, but then when it tries to pass it along to convert to H.264 it always fails with a Quicktime Error -50.
I suspect that it’s an issue of the Compressor Temp drive having one permission, and Compressor itself may not have permission (“authority”) to take the resulting file?
I am basing this on what I skimmed once in the Compressor error logs, but I apologize, I don’t have time now to research this more. I was hoping to find a solution with this search.
@ @ @ @ @ @ @ @ @ @ @
Jesus Ali
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incidently, I just found this guy diagnosing the Error on Windows:
https://www.infoworld.com/article/06/08/23/35OPstrategic_1.html
His findings are that it’s a general parameter error, but in his specific case, the program is using Relative Paths to locate a file vs. absolute paths and the program gets lost.
Could “var/spool” and the temp directories Compressor creates while encoding be considered relative paths? Maybe the solution would be to turn off QMaster while job chaining or to always indicate, COPY SOURCE TO CLUSTER?
Might be worth a shot for people having trouble. Again, I don’t have time right now to experiment.
Good Luck!
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