Need help dropping HEVC files into Vegas Pro 15

antony-vickers wrote on 1/2/2018, 4:28 AM

Hello, I've recently bought Vegas and am still learning the ins and outs.

I've been recording videogame footage for a project, and find that I've come across something that's baffled me. I use Bandicam to record MP4 videos at 60 FPS, and primarily use the H264 (Nvidia NVENC) codec. These videos are able to be opened and edited just fine.

But when I tried to record using the HVEC codec (which I believe is essentially H265), Vegas will not open the file at all. I was hoping that someone could inform me why.

Just to be specific, I'm using Vegas Pro 15, Build 261.

Comments

NickHope wrote on 1/3/2018, 2:11 AM

Please share a sample file if you can (e.g. on Dropbox, Google Drive, OneDrive, mega.nz, wetransfer.com or mediafire.com), for others to test and to forward to the developers if there's a problem.

antony-vickers wrote on 1/3/2018, 6:26 PM

Please share a sample file if you can (e.g. on Dropbox, Google Drive, OneDrive, mega.nz, wetransfer.com or mediafire.com), for others to test and to forward to the developers if there's a problem.

Here is a ZIP of a test video I shot with Bandicam using HVEC. There is also a photo file of the settings that Bandicam used before I shot it (that I thought was relevant anyways).

https://mega.nz/#!D4BAnT4D!MLd9Mv80R_YN1_LLscXCXMdQ6UE79hlFFV7n6wTlEg4

I try to shoot in MP4 since I heard that some editing software has trouble with AVI files.

NickHope wrote on 1/3/2018, 10:08 PM

Unfortunately it won't open for me either in VP14 build 270 or VP15 build 261.

Please leave the file on mega.nz so I can link the developers to it.

You could re-encode the file in FFmpeg so it can open in Vegas. The general principle and some links are in this post. For your case, the following command line would keep the video as HEVC and the audio untouched:

ffmpeg -i in.mp4 -c:v libx265 -crf 18 -preset medium -c:a copy out.mp4

A batch file would be:

for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v libx265 -crf 18 -preset medium -c:a copy "%%~nafixed.mp4"

The files end up much smaller. You could lower the crf value a bit, which in theory gives less quality loss, and still have files smaller than your originals.

Or of course you could transcode to H.264.

I'd be tempted to stick with H.264 for future recordings. H.265 is very demanding and Vegas doesn't excel with any flavour of it.

Marco. wrote on 1/4/2018, 5:48 AM

It opens in VLC player but in none of my NLEs. Maybe because of the differences between video and audio frame rate. Also an integrity check says "SPS 0 does not exist". So some properties seem to be out of standard.

antony-vickers wrote on 1/6/2018, 6:07 PM

Well, thank you guys for the help, and glad to know that I'm not just being oblivious about something obvious. At this point, this is probably an oddity with Bandicam, rather than Vegas, so I'll probably ask them about this issue.

set wrote on 1/7/2018, 8:20 AM

Had tried too with previous version of Bandicam (only downloading the sample from their website - I personally prefer using OBS / Radeon Relive), where it still record to AVI format (if I'm not mistaken), and the format cannot be accepted directly.

Yeah, the Bandicam's codec is weird.

Griever wrote on 2/19/2019, 5:41 AM

Problem is still presents in Vegas 16.0.361 and Bandicam 4.3.0.1479.
So I forced to use H264 codec in Bandicam instead of more efficient HEVC :(

VEGASnate wrote on 10/17/2022, 10:42 PM

This issue will be fixed in VP 20, Update One (build 214)! In the File I/O tab in Preferences uncheck the "Enable legacy HEVC decoding" box, restart VEGAS, and the Bandicam-created HEVC file can now be read by VEGAS. Thanks @VEGASHeman!

andyrpsmith wrote on 10/18/2022, 6:28 AM

This issue is now fixed in VP 20, Update One (build 214)! In the File I/O tab in Preferences uncheck the "Enable legacy HEVC decoding" box, restart VEGAS, and the Bandicam-created HEVC file can now be read by VEGAS. Thanks @VEGASHeman!

Looks like you got early access to update one for V20.