Sony Vegas 21

Uggh... @joe-m2647, no such product exists...

??? What do you mean?

@joe-m2647 "Sony" is not involved.

https://www.vegascreativesoftware.info/us/forum/sony-vegas-vs-vegas--119881/

What build of VEGAS Pro 21 are you using?

Can you share MediaInfo for the media?

What build of VEGAS Pro 21 are you using?

Can you share MediaInfo for the media?

It's Build 315

and this all the media info

Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (isom/mp42)
File size                                : 492 MiB
Duration                                 : 10 min 9 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 6 770 kb/s
Frame rate                               : 7 495.659 FPS
Encoded date                             : 2024-07-02 16:00:23 UTC
Tagged date                              : 2024-07-02 16:00:23 UTC

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main@L4.1@High
Codec ID                                 : hvc1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 4 s 895 ms
Bit rate                                 : 818 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 7 495.659 FPS
Minimum frame rate                       : 59.940 FPS
Maximum frame rate                       : 60 000.000 FPS
Original frame rate                      : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Bits/(Pixel*Frame)                       : 0.053
Stream size                              : 478 MiB (97%)
Language                                 : English
Encoded date                             : 2024-07-02 16:00:24 UTC
Tagged date                              : 2024-07-02 16:00:24 UTC
Codec configuration box                  : hvcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Format profile                           : AAC@L2
Codec ID                                 : mp4a-40-2
Duration                                 : 10 min 9 s
Bit rate mode                            : Variable
Bit rate                                 : 192 kb/s
Maximum bit rate                         : 250 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                              : 13.8 MiB (3%)
Language                                 : English
Encoded date                             : 2024-07-02 16:00:24 UTC
Tagged date                              : 2024-07-02 16:00:24 UTC
 

Frame rate mode                          : Variable
Frame rate                               : 7 495.659 FPS
Minimum frame rate                       : 59.940 FPS
Maximum frame rate                       : 60 000.000 FPS
Original frame rate                      : 59.940 (60000/1001) FPS

That is the first problem. Offer Vegas video that was recorded or converted to Constant Frame Rate.

This is odd:

Frame rate                               : 7 495.659 FPS

How exactly did you generate this media?

I watched through the video and don't see any point where the audio and video is out of sync or the video seems to be moving in fast motion.

This is odd:

Frame rate                               : 7 495.659 FPS

How exactly did you generate this media?

I watched through the video and don't see any point where the audio and video is out of sync or the video seems to be moving in fast motion.

Yeah so I just noticed this but the uploaded footage actually fine here, but when I tried to put it back into vegas or watch it through a media player it was all sped up.

And that media is just the render from vegas

What happens if you set Vegas Pro's project properties to 30fps rather than 60fps?

So what exactly am I looking at?

This file was edited in VEGAS and then output as 60fps HEVC but somehow ended up as variable framerate? Was there some step between VEGAS and the upload?

Please walk me through exactly what you did.

So what exactly am I looking at?

This file was edited in VEGAS and then output as 60fps HEVC but somehow ended up as variable framerate? Was there some step between VEGAS and the upload?

Please walk me through exactly what you did.

So I just put it into Vegas and filmed it with my phone to show what's happening. The video plays normally for a few seconds and then will suddenly speed through the rest of the clip (in this case it was a 10 minclip ) in a few more seconds.

As for what I did that's the strange part because I didn't do anything out of the ordinary. I have a custom template which is the standard one I've used for years (I'll post a screen grab of that as well) And I didn't do anything different when rendering this clip.

Thanks for this. I don't think there's a problem in the file itself (though is the MediaInfo always like this for framerate? I avoid QSV in VEGAS for quality reasons so haven't tested it much. Have not seen weird framerates with NVENC or Mainconcept).

Anyway there seems to be a decoding bug in how VEGAS reads the file. In preferences file io does "enable experimental HEVC decoding" yield normal playback behavior? That brings you back to the older decoder in use from VP 15 onwards that seems to have worked fine for you in the past.