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TOPIC: Computer crashes during export process

Computer crashes during export process 1 week, 3 days ago #189319

  • cartooncre8tr
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I've made about 15 videos using this software so far, and I've only run into this issue once. I've tried changing the speed of the video I'm exporting, as well as trying to export the video in sections instead of all at once.

Computer Specs -
Windows 7
AMD FX(tm)-6300 Six Core Processor 3.5 GHz
8 GB of RAM
64-bit Operating System

And suggestions would be appreciated.
Last Edit: 1 week, 3 days ago by cartooncre8tr.

Re: Computer crashes during export process 1 week, 3 days ago #189322

  • hugly
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Hello,

If you still run Lightworks V14.0, installing V14.5 might bring enhanced stability.
It's better to travel well than to arrive...

Re: Computer crashes during export process 1 week, 3 days ago #189325

  • cartooncre8tr
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I'm currently running v14.5

Re: Computer crashes during export process 1 week, 3 days ago #189328

  • hugly
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There's no quick fix, it isn't a commonly known problem. I've heard of similar problems, but they were caused by the media format used.

We can analyze your media and Log folders and at the end, most likely, I'll suggest, converting your footage to some well supported edit-friendly codec before importing, which means you have to edit the sequence again.

The question is, do you like to do that, is it worth the effort for you?

Edit: If it is, please force two crashes caused by export of the sequence, attach a zipped archive of your entire "Logs" folder, located on Windows at "C:\Users\Public\Documents\Lightworks\Logs" and post a ]Mediainfo report of the footage you use. Your project details and some information about the speed-up might help as well.
It's better to travel well than to arrive...
Last Edit: 1 week, 3 days ago by hugly.

Re: Computer crashes during export process 1 week, 3 days ago #189331

  • cartooncre8tr
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Editing the sequence isn't an issue.

If you have suggestions for where/how to convert my video files prior to importing them into lightworks, I'd take the time to give that a try.

Edit: As far as the specific project I'm working on that's causing the issue, it's about 12 hours worth of a painting that I've recorded for time lapse purposes. I was originally trying to speed it up around 7000%, but after crashing a few times, I tried 2000%, and then just doing segments of the piece, rather than the whole thing.
Last Edit: 1 week, 3 days ago by cartooncre8tr.

Re: Computer crashes during export process 1 week, 3 days ago #189341

  • hugly
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Thank you for the information. I wasn't aware that you're working on a speed painting.

Speed painting is something special. I've never tried to speed up 12 hours of video material by 70 times.

I think speeding up the video by 10 times or so during conversion prior to import and applying the rest in Lightworks would be a better approach. In particular if you wish using preview in Lightworks.

Could you please post a Mediainfo report of your recording. Here you'll find information on how to create and post Mediainfo reports.
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Re: Computer crashes during export process 1 week, 3 days ago #189348

  • cartooncre8tr
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The recording itself is made up of about 60 different files. I'm sure you're not looking to have me upload all of them.

What exactly were you suggesting when you said "converting your footage to some well supported edit-friendly codec before importing"? Where would I go for this?

Re: Computer crashes during export process 1 week, 3 days ago #189351

  • hugly
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I assume you've recorded your footage with the same camera (or capture software) and same settings, so only one Mediainfo report is enough.

Based on the mediainfo I would provide a batch file for ffmpeg which speeds up your material by 10 times and converts to MPEG2 I-Frame HD, maybe downscaled to export resolution of the Free version for better performance.
It's better to travel well than to arrive...
Last Edit: 1 week, 3 days ago by hugly.

Re: Computer crashes during export process 1 week, 3 days ago #189353

  • cartooncre8tr
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A little update...

So I tried exporting the sequence again, same thing... speed up at 7000%, and this time it completed the export. However, after around 45 seconds in the exported video, the video goes black and remains that way for the rest of the video.

Re: Computer crashes during export process 1 week, 3 days ago #189354

  • cartooncre8tr
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Here's the MediaInfo info


General
Complete name : E:\Timelapses\MARSTON\MVI_0580.MP4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/avc1/CAEP)
File size : 2.93 GiB
Duration : 24 min 49 s
Overall bit rate : 16.9 Mb/s
Encoded date : UTC 2018-11-19 20:22:28
Tagged date : UTC 2018-11-19 20:22:28

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 2 frames
Format settings, GOP : M=3, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 24 min 49 s
Bit rate : 16.6 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.268
Stream size : 2.89 GiB (98%)
Language : English
Encoded date : UTC 2018-11-19 20:22:28
Tagged date : UTC 2018-11-19 20:22:28
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 24 min 49 s
Source duration : 24 min 49 s
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 45.3 MiB (2%)
Source stream size : 45.3 MiB (2%)
Language : English
Encoded date : UTC 2018-11-19 20:22:28
Tagged date : UTC 2018-11-19 20:22:28

Re: Computer crashes during export process 1 week, 3 days ago #189361

  • hugly
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cartooncre8tr wrote:
A little update...

So I tried exporting the sequence again, same thing... speed up at 7000%, and this time it completed the export. However, after around 45 seconds in the exported video, the video goes black and remains that way for the rest of the video.

Does it export as expected when speeding up only 2000%? I f you see the same problem, maybe your source is damanged.

Anyway, thanks for the mediainfo.

Try this:

Install latest stable static version of FFmpeg and add the path, as explained here: blog.gregzaal.com/how-to-install-ffmpeg-on-windows/

Download the attached archive containing a batch file and unzip to your desktop. Drag and drop a selection of video files onto the batch file to start conversion. The output will be placed into a subfolder of source location, named SpeedPaint_10@30.

Tell how that works for you.

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Last Edit: 1 week, 3 days ago by hugly.

Re: Computer crashes during export process 1 week, 2 days ago #189391

  • cartooncre8tr
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I exported the same 12 hours of film at 2000% like requested, and this time it completed the export again, only the black screen occurs at 9:45 and remains for the rest of the video.

Re: Computer crashes during export process 1 week, 2 days ago #189392

  • cartooncre8tr
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Also, I've downloaded ffmpeg and SpeedPaint as you requested, I'm just not exactly sure what I'm supposed to be doing with either of these programs.

Re: Computer crashes during export process 1 week, 2 days ago #189396

  • hugly
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Converting your videos prior to import as suggested earlier. It answers the question "Where would I go for this?".

FFmpeg is the software and SpeedPaint_10 @ 30.bat a command file which executes ffmpeg with some parameters. The material is speeded up 10 times, scaled to export resolution 720p and converted to an edit friendly codec. You shouldn't have performance problems and crashes anymore and you can add additional speed up, if needed.
It's better to travel well than to arrive...
Last Edit: 1 week, 2 days ago by hugly.

Re: Computer crashes during export process 1 week, 2 days ago #189397

  • hugly
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cartooncre8tr wrote:
I exported the same 12 hours of film at 2000% like requested, and this time it completed the export again, only the black screen occurs at 9:45 and remains for the rest of the video.

That means most likely that your original material is damaged.


Edit: Saying this, I assume that you know that a speed change shortens duration accordingly and if you don't use Resize option it will create trailing black, but that's visible already in Lightworks preview.
It's better to travel well than to arrive...
Last Edit: 1 week, 2 days ago by hugly.
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