Strange but repeatable SD render problem.

diverG wrote on 7/1/2011, 9:56 AM

Simple SD timeline (22min) using PAL.avi files. After editing I cannot render to avi so as to write back to tape. The render crashes at random times and never completes.
I can render out .ac3 & mpeg2 files to create a DVD (never a problem). By chance I found that if I render to .ac3 or mpeg2 and then render to .avi, the avi render always completes. Over the last month or so I have rendered the project this many times and the problem and work around are entirely repeatable.

I put this problem to support together with the necessary files. Support confirmed that the project rendered out fine on their machine but no further help was forthcoming.

CPU useage 100% whilst rendering and core temeratures OK.
Any bright ideas as to what might be causing this problem.

Geoff

Comments

musicvid10 wrote on 7/1/2011, 11:42 AM

What "kind" of PAL AVI files?
Use MediaInfo and post the details.

diverG wrote on 7/1/2011, 12:37 PM

Format : AVI
Format/Info : Audio Video Interleave
Format_Commercial_IfAny : DV
File size : 27.6 MiB
Duration : 7s 560ms
Overall bit rate : 30.6 Mbps
Recorded date : 2011-01-11 08:04:46.000
TAPE : TBBC1
TCOD : 11129200000
TCDO : 11204800000
VMAJ : 4
VMIN : 0
STAT : 189 0 3.437775 1
DTIM : 30126438 905028352

Video
ID : 0
Format : DV
Codec ID : dvsd
Codec ID/Hint : Sony
Duration : 7s 560ms
Bit rate mode : Constant
Bit rate : 24.4 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.357
Stream size : 26.0 MiB (94%)
Encoding settings : wb mode= / white balance=sunlight / fcm=auto focus

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 7s 560ms
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 1.38 MiB (5%)
Interleave, duration : 280 ms (7.00 video frames)
Interleave, preload duration : 280 ms

Not used MediaInfo before. Is this what you require?

Same info via formatfactory

General

Complete name : G:\TBBC1 - Clip 065.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 126 MiB
Duration : 34s 800ms
Overall bit rate : 30.5 Mbps
Recorded date : 2011-01-11 08:35:37
TAPE : TBBC1
TCOD : 15488400000
TCDO : 15836400000
VMAJ : 4
VMIN : 0
STAT : 870 0 3.432833 1
DTIM : 30126442 2235159168

Video
ID : 0
Format : Digital Video
Codec ID : dvsd
Codec ID/Hint : Sony
Duration : 28.8 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 5:4
Original display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Interlaced
Bits/(Pixel*Frame) : 2.778
Stream size : 119 MiB (95%)
Encoding settings : wb mode= / white balance=sunlight / fcm=auto focus

Audio
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Unsigned
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 34s 800ms
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KH
Stream size : 6.37 MiB (5%)
Interleave, duration : 278 ms (6.96 video frames)
Interleave, preload duration : 280 ms

kplo wrote on 7/1/2011, 12:37 PM

Are you rendering to uncompressed or a standard DV type .avi when this occurs?
Many times this problem can be traced to bits of media that Vegas just doesn't like,
but you mentioned crashing at random times. You might try reloading the DV codec in case that may be corrupted (or reload Vegas itself). What version of Vegas are you on? Does another SD project render completely?

Ken

kplo wrote on 7/1/2011, 12:43 PM

Sorry, posted msg before yours appeared.
Do try reinstalling Vegas...might do the trick.
Ken

diverG wrote on 7/1/2011, 1:06 PM

Hi Ken
DV is captured via 'firewire' directlty from the camcorder or via a sony deck.Vegas, dropped on the timeline and editted.
Render template is default =PAL DV Widescreen. The same one I've used thro VP8 & 9. I have a fall back position with XP but I would like to sort out the W7 VP10 setup

Machine is dual booted with project & files on an intermediate drive. If I boot into XP and pick up the project it renders fine in VP10. Never a problem.

I've clean reinstalled W7 & VP10 and the problem persists. I normally work with HDV (tape based) with .m2t files and have no problems whatsoever. Looks like a quirk with .avi on this pc. In view of the clean install i have no other DV projects available immediately.

Geoff

Edit:
Looks like the avi files are corrupted. Re-captured via Sony A1 (set to DV) and the resulting files render with no problems. Also cleaned all the dust of the proccessor cooling fan and dropped the 'render' temp by 10 degC.

Can put this one to bed now.