Garbled preview/export with AVC source files in project

[John Rofrano]

[Rick Anvican] “I’m trying to render(convert) some MP4s with AVC encoded video with the Sony DV codec.Upon import, the thumbnail for the imported MP4s were garbled, as was the preview window when playing back the timeline, export to virtually any format was garbled as well.”

Where did these MP4 files come from. the AVC spec is huge and there is no way that any software can support all of the variations. That’s why I always buy cameras that shoot industry standard formats like AVCHD, XAVC S, etc. Your best bet is to transcode these troubled AVC files outside of Vegas to a format that Vegas can easily work with. You might ben get away with just remuxing them.

[Rick Anvican] “The current fix was to disable compoundplug and use the quicktime plugin instead, but I need to re-enable compoundplug if I were to do normal projects again.”

You should not be messing around with DLL files. Once you start doing that there is no telling what side-effects you might cause.

[Rick Anvican] “Can someone please elaborate and if possible let me know if this issue is resident in sony vegas pro 12?”

It really is file dependent. If you want to upload a sample to Dropbox or something one of us with Vegas Pro 12.0 can take a look at it for you. It’s quite possible that Vegas Pro 12.0 can handle AVC formats that Vegas Pro 11.0 cannot.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Rick Anvican]

Thanks for replying John, a few MP4 files I have that are not working well with Vegas are actually from Youtube (videos uploaded around 2011) prior to their switchover to variable framerate AVC, I’m looking into using Telestream’s Episode to transcode then for the more problematic ones. Remuxing to M2TS works for majority of them most of the time, though it has the occasional glitch so I would restart Vegas before I render(export) anything.

I know them DLL files will cause damage but I only change folder names like add “_” to the “compoundplug” folder to disable it and then revert it back to normal. Variable Framerate (Youtube) AVC was able to be decoded properly by quicktime. Is there a way in Vegas where I might be able to set a certain codec to use quicktime to decode instead?

I’ll see if I can replicate the garbled preview with such MP4s and give you screens of file properties readout in Vegas. Relatively new to the forums – FILE UPLOAD is the one for the dropbox? Thanks again.

(Do you guys get rare glitch-ups with the preview/render garbled after like a period of time using Vegas, for me about two hours on any project using videos of any supported codec?)

[John Rofrano]

[Rick Anvican] “Is there a way in Vegas where I might be able to set a certain codec to use quicktime to decode instead?”

No there is not. You also should not be editing YouTube videos. You should be converting them from a delivery format to and editing format before you edit. This will eliminate your problems.

[Rick Anvican] “Relatively new to the forums – FILE UPLOAD is the one for the dropbox?”

No, it’s the buttons right above the editing box where you type you reply:

[Rick Anvican] “(Do you guys get rare glitch-ups with the preview/render garbled after like a period of time using Vegas, for me about two hours on any project using videos of any supported codec?)”

I haven’t seen this. Perhaps it’s a resource problem like a memory leak?

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Rick Anvican]

I’m trying to convert videos in delivery format to editing format – which codec(s) do you suggest would retain original quality? Size is also an issue but it just means I have to get more storage.

After seeing your reply, I think the glitching is caused by the mix of the source videos I used in the projects, with supported codecs including those in delivery format, think it’s probably best to have all source video using a single codec.

I think my installation of Vegas Pro somehow has the error reporting disabled so it always gives me exception messages when it crashes, some I can ignore (e.g. compoundplug.dll), others would quit to desktop (e.g. vegas110k.exe). The glitch-ups that happen after a period of time for me would occasionally occur after an exception message related to “vfx1.ofx”(Vegas’ color correction/color curves and other sony video fx).

[John Rofrano]

[Rick Anvican] “I’m trying to convert videos in delivery format to editing format – which codec(s) do you suggest would retain original quality? Size is also an issue but it just means I have to get more storage.”

I use CineForm as a digital intermediary. You could use something as simple as MJPEG video with PCM audio using AviDemux 2.5:

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Rick Anvican]

I’ll have a look at cineform then, thanks for that.

Wasn’t able to get a screenshot of the glitchy preview but it was along the lines of this:

I do know that installing codec packs is bad for Vegas, but would manual installations of ffdshow and haali affect vegas? using “multiavchd” to transcode(convert) some videos which requires a proper playback chain setup.

[John Rofrano]

[Rick Anvican] “I do know that installing codec packs is bad for Vegas, but would manual installations of ffdshow and haali affect vegas? using “multiavchd” to transcode(convert) some videos which requires a proper playback chain setup.”

It might. I thought ffdshow had the ability to redirect to different codecs. If you have any software that messes with what codec gets used, it could be the cause.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Rick Anvican]

Forgot to mention I disabled most of Microsoft’s codecs using “Win7DSFilterTweaker” so that “multiavchd” can actually work. Would vegas have problems if the default microsoft codecs (wmv/mpeg/h264,etc) are disabled?
I do see glitchy thumbnails in Windows Explorer for a couple of SD AVC encoded MP4s but when I revert back to Microsoft’s codecs, they show up fine.

Technically, would repairing(reinstall without uninstall at first) a vegas installation replace its set of codecs with fresh copies or would that require a total uninstall of everything codec related?

Do you happen to have problems with “vfx1.ofx”? In my build(583), video effects from “vfx1.ofx” like “(sony) color curves” tend to have blank video event FX windows (just the pan/crop, preset select and nothing else) which requires restart of vegas because it would crash if I continue doing anything at all, even clicking anywhere. The FX window does function as normal after restart.

I have read on the forums that “vfx1.ofx” might be buggy. I tend to use “color curves” and “color corrector (secondary) a lot and they’re usually coupled with other 3rd party effects I have like twixtor 5.1.1.
My views – either I’m past the limit of instances of “vfx1.ofx” I can use or it’s just not happy with certain 3rd party plugins.

[Rick Anvican]

Apologies, was supposed to have a link in the previous post of how the glitched preview looks like (it’s not from my scenario with the AVC MP4s but it’s visually similar in appearance): https://i110.photobucket.com/albums/n119/lqcorsa/24234_zps951e47c8.jpg

[John Rofrano]

[Rick Anvican] “Forgot to mention I disabled most of Microsoft’s codecs using “Win7DSFilterTweaker” so that “multiavchd” can actually work. Would vegas have problems if the default microsoft codecs (wmv/mpeg/h264,etc) are disabled? “

All I know is I have Vegas Pro installed on a clean Windows 7 64bit OS and everything works fine. Once you start messing with disabling codecs, no one can really help you. My only advice is to rebuild your PC from a fresh OS and stop tweaking codecs. It’s really asking for trouble.

~jr

http://www.johnrofrano.com
http://www.vasst.com