[Peter Holt]

I have a new data point.

This is a bug in Vegas Pro 13 itself, or in the NBFX Lens Correction plug-in which is the only 3rd party FX I am using.

I have just finished an 80hr render, on a PC which was totally not touched at all (because all previous renders started showing the corruption fairly early on) and it *still* corrupted the video, at around the 95% point.

I am getting around it by re-rendering the last 5% and then will use AviDemux to join the files, but this puts a different perspective on the issue. It isn’t just the use of RDP or playing video on the same PC. There is something else which can trigger it.

GPU acceleration is disabled everywhere, as per previous threads on this issue.

[Peter Holt]

The camera is a Sony FDR-1000V. This has no usable input except an analog mike input, which is anyway inaccessible when the camera is in the waterproof housing. The camera has wifi but it is crippled functionally to file transfer to IOS/android devices, or uploading to some Sony-owned streaming service. Even bluetooth versions have no such capability over bluetooth.

I chose the Sony for the small frontal area, which makes it more suited to aircraft usage.

It is interesting that a solution does exist. However, it seems that it is limited to recording the audio *in the camera*. Is there an audio recorder which takes Line In and which does the same thing?

[Peter Holt]

I use the DR-05
https://www.amazon.co.uk/gp/product/B004OU2IQG

It works great. However I use only the 3.5mm input, not the mikes. Also, it doesn’t have a proper Line input (despite claims) – it is just a single level input and you have to play with the attenuator to make it work right.

[Peter Holt]

I looked up OBS
https://obsproject.com/forum/resources/video-source-plugin.20/

Surely this is looking at it the wrong way. Vegas needs to support *common* video formats properly. Most people are stuck with whatever camera they have.

The only scenario I have heard of rendering anywhere near real time was on a Mac running Final Cut Pro, a very simple job, and using the Mac video coprocessor. Vegas doesn’t use the majority of video cards for rendering… many threads on this.

I have just done a 80hr render of a 7hr video. Two tracks (one with continuous text subtitles – ex-GPS data actually), colour correction, contrast, NBFX lens correction. However these FX don’t make a lot of difference to the wider issue. Removing them might reduce the render to something like 50hrs. The biggest factor by far is the output bitrate. I am rendering to 50mbits/sec. The output image size has no effect. Just the bit rate.

[Peter Holt]

How on earth can Magix reproduce an issue involving 50-100GB of data? You can’t exactly dropbox it, or put in on a few DVDs. You could put it on 2 50GB blueray disks. Or send them a $80 1TB USB HD and hope they return it.

[Peter Holt]

Not sure I understand. Is there more than one way to apply a VP?

This is where a break (caused by the 4GB file boundary) breaks the VP application. The VP can be applied to only one chunk (I guess you call that a “clip” or an “event”?) at a time. You cannot apply a VP to say a 12GB piece of the timeline (3 4GB chunks). Well, you can but you get weird results.

The basic issue is that Vegas maintains the breaks between the imported media, after it is all placed onto the timeline, and there is no way to remove the breaks. I believe one can remove splits (the breaks done by pressing “S”); I mean by means other than Undo 😉 Some other editors, reportedly, can remove the breaks.

Anyway, I found two tools which will losslessly merge mp4s. One is Machete and the other is AviDemux. Neither is fully automatic (neither takes a *.mp4 etc input spec) but the latter is a lot quicker due to some UI details.

[Peter Holt]

I have done, everywhere I can find.

[Peter Holt]

Well, Vegas crashed in the render at 51%. I was getting about 10 black frames and 10 good ones, repeating. No idea what started it, but it was something I did on the PC; maybe browsing some website with Chrome.

So I downloaded the latest Vegasaur (not the one which needs Pro 14) and I can see that feature. And yes it does work – much faster than the previous SRT import method! And the resulting event can be edited, bits cut out from the middle, etc. Impressive.

My only slight problem is that I cannot actually use it right now because I have done a lot of edits to the previous project, before importing the 12000 or so subtitles, and I have that .veg file saved, but if I delete the subtitles (or delete the whole track carrying them) Pro 13 hangs for ever. So I have no way of testing this method on my existing project, without throwing away the edits on the video. I guess I am working right on the limits of Pro 13, despite having 24GB of RAM. I used to see this on Pinnacle and Premiere Elements all the time (useless tools really) but never on MSP11/12. But then I never tried importing that many subtitles into those.

So I will have to just render the project as I have it (about 100hrs) and save this new workflow for new ones.

[Peter Holt]

“just the stub downloader, maybe this is to prevent bootlegging?”

That is the usual reason. Very irritating.

Usually there is a tmp file stored somewhere and then deleted, but you need to be running some utility which monitors the installation process.

Anyway this doesn’t really matter because I am sure Vegas checks online for a valid license, periodically if not every time it runs. MSP11 used to do that; I found that out when I gave an old PC with it to my son. He started up MSP and terminated my license 🙂 I sorted it out eventually over the MSP online chat support facility.

Normally I would never use a program which does this, because such a program will one day stop running because the validation server has been terminated. I had that happen with a $20,000 FPGA design package some years ago. Adobe got a massive hassle with CS2 and CS3 when they killed their validation servers for these versions (basically this prevented the app being transferred to a new PC after the previous one packed up) so they put a serial number for CS2 on their website for the whole world to use 😉

But we don’t have a choice. I am sure all video editor vendors do this now.

[Peter Holt]

OK, will do when the current render is done a couple of days from now 🙂

Is such a track with multiple keyframes editable, in the sense of grouping it with the video track (which itself comprises of about 20 4GB chunks, each about 20 mins long) and then cutting bits out from the whole lot, with auto ripple, and (manually) doing crossfades?