Question / Help Local Records and Vegas

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dwyrin

New Member
So, I've noticed lately that I have to do something rather silly before i can edit my video files. I have to throw the local recorded mp4 file into another encoder to mp4 before having a stable file I can edit. Otherwise vegas tends to crash trying to handle the file.

I believe this is the section of the log file in question:
Code: 
18:58:13: =====Stream Start: 2013-08-10, 18:58:13===============================================
18:58:13:   Multithreaded optimizations: On
18:58:13:   Base resolution: 1920x1080
18:58:13:   Output resolution: 1920x1080
18:58:13: ------------------------------------------
18:58:13: Loading up D3D10...
18:58:13: Playback device Default
18:58:13: ------------------------------------------
18:58:13: Using desktop audio input: Speakers (Realtek High Definition Audio)
18:58:13: ------------------------------------------
18:58:13: Using auxilary audio input: Microphone (Blue Snowball)
18:58:13: ------------------------------------------
18:58:13: Audio Encoding: AAC
18:58:13:     bitrate: 192
18:58:13: Using Window Capture
18:58:13: Using custom x264 settings: "crf=10"
18:58:13: x264: VBV maxrate specified, but no bufsize, ignored
18:58:13: x264: NAL HRD parameters require VBV parameters
18:58:13: ------------------------------------------
18:58:13: Video Encoding: x264
18:58:13:     fps: 30
18:58:13:     width: 1920, height: 1080
18:58:13:     preset: veryfast
18:58:13:     CBR: yes
18:58:13:     CFR: no
18:58:13:     max bitrate: 1000
18:58:13: ------------------------------------------
18:58:13: Syncing audio to video time (WARNING: you should not be doing this if you are just having webcam desync, that's a separate issue)
19:11:46: Total frames rendered: 24304, number of frames that lagged: 65 (0.27%) (it's okay for some frames to lag)
19:11:47: =====Stream End: 2013-08-10, 19:11:47=================================================

Does OBS have known conflicts with other editing programs? Is one of my settins angering vegas? Do I have gremlins living in my case rerouting all my data? Any info would be appreciated, thanks
 
A

Andrew Evenstar

New Member
dodgepong said:
Make sure CFR is enabled when recording videos that you intend to edit later.
Click to expand...

Jim said:
MP4 files should be compatible with vegas already as long as you make sure you are using AAC and have "Use CFR" in advanced enabled.
Click to expand...

Does "CFR" affect live streaming in a negative way?

I use OBS to stream and also want to use the video file to edit in Sony Vegas to post to youtube. the process is such a pain that i've been grabbing the video off of twitch's servers. (not complaining)

Just curious if anyone has found an easier work around because yeah these .mp4 files are not compatible in vegas. I have yet to try out the CFR option, i just discovered it today. Thanks.
 
Boildown

Boildown

Active Member
Constant Frame Rate (CFR) is good for just about everyone. They say to turn it off for Handbrake, but that's because Handbrake is a transcoder, going from something already captured to some other encoding format. For the first time encoding, like you're doing with OBS, I'm pretty sure CFR is always preferred.

I noticed something else though. Your Constant Rate Factor (CRF, not to be confused with CFR) is set to 10. This is way over the top, and will cause Vegas to really act poorly when editing the files. 16 is probably the lowest you should set it for a 1080p picture, and realistically 18 to 22 is probably fine.

I'm curious, you're streaming to Twitch with this? Normally people use CBR (constant bit rate) rather than CRF. Especially with a CRF of 10, which would have an extremely high average bit rate unless your content is very static. But maybe you're using -multi and running OBS twice. This is something I'm just starting to try myself.
 
dodgepong

dodgepong

Administrator
Community Helper
He is using CBR, so the custom CRF setting should be ignored...though it wouldn't hurt to remove it.

And yes, CFR is fine for livestreaming.
 
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dwyrin

New Member
I'll give CFR a shot, thanks. I thought there was a reason i was picking it over CBR, but i can't remember it now
 
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