logo

Live Production Software Forums

www.vmix.com

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
Event transition speed depending on play back speed ???
Options
Go to last post Go to first unread
Previous Topic Next Topic
petervk  
#1 Posted : Monday, January 1, 2018 6:49:11 AM(UTC)
petervk

Rank: Advanced Member

Groups: Registered
Joined: 12/28/2017(UTC)
Posts: 41

Thanks: 6 times
Was thanked: 1 time(s) in 1 post(s)
I cannot believe my eyes. It looks like the event transition duration/speed depends on the replay playback speed when I replay multiple selected events via the 'play events' button. This makes the option to replay multiple events completely useless to me. Am I doing something wrong?

Thanks,
Peter.
Back to top

Wanna join the discussion?! Login to your vMix Forums forum account, or Register a new forum account.
Back to top  
admin  
#2 Posted : Monday, January 1, 2018 7:10:15 AM(UTC)
admin

Rank: Administration

Groups: Administrators
Joined: 1/13/2010(UTC)
Posts: 5,208
Man
Location: Gold Coast, Australia

Was thanked: 4288 time(s) in 1520 post(s)
Hi Peter,

Yes this is by design.

All transitions between events in the replay are frame accurate, which means it needs
to calculate precisely when an event ends, and then queue up a pre-roll of the next event in such a way that none of those frames occurs
in the middle of the transition (as you might miss some important part of the action if it did).

Therefore it is not possible to calculate this for a constantly changing replay speed.

So in cases where you need to move between events quickly at different speeds, set the "Event Transition" to Cut.

Regards,

Martin
vMix
Back to top
WWW BLOG
thanks 1 user thanked admin for this useful post.
petervk on 1/1/2018(UTC)
petervk  
#3 Posted : Monday, January 1, 2018 8:21:11 AM(UTC)
petervk

Rank: Advanced Member

Groups: Registered
Joined: 12/28/2017(UTC)
Posts: 41

Thanks: 6 times
Was thanked: 1 time(s) in 1 post(s)
Hi Martin,

Thanks for the quick response. Much appreciated.

Maybe I was not 100% clear. When I start a replay at say 50% of the normal speed then the transition from the live camera to the replay clip runs at full speed. Same for when I playback multiple replay clips and for the transition between the last replay clip back to the live camera. In all these situations (so 'to' and 'from' a replay) the transition runs at full speed. The transitions however between replay clips run at the speed of the replay speed.

OK I can imagine you need to do some recalculation when the speed changes but do you really think that it is technically impossible to render the inter-replay clip transitions at full speed?

Thanks,
Peter.
Back to top
admin  
#4 Posted : Monday, January 1, 2018 9:06:48 AM(UTC)
admin

Rank: Administration

Groups: Administrators
Joined: 1/13/2010(UTC)
Posts: 5,208
Man
Location: Gold Coast, Australia

Was thanked: 4288 time(s) in 1520 post(s)
Yes, that is what I was referring to also, the transition between each clip. (I.E The Event Transition setting).

It is technically impossible to correct the transition time if speed changes are made in the middle of a transition.
However, perhaps as a compromise we could calculate the transition time based on the speed just prior to the transition starting.

This should work most of the time, but will still look wrong if the speed is suddenly changed right in the middle of a transition.
But this may be closer to what you need?

Regards,

Martin
vMix
Back to top
WWW BLOG
thanks 1 user thanked admin for this useful post.
petervk on 1/1/2018(UTC)
pm  
#5 Posted : Monday, January 1, 2018 11:26:40 AM(UTC)
pm

Rank: Advanced Member

Groups: Registered
Joined: 11/28/2015(UTC)
Posts: 184

Thanks: 10 times
Was thanked: 32 time(s) in 27 post(s)
Hi

In my opinion, the Event Transition duration should be completely independent from the selected replay speed. The configured time in instant replay settings should always be applied and no recalculation should be needed. Otherwise the Event Transition time makes no real sense to me.

Regards,
Patrick
Back to top
petervk  
#6 Posted : Monday, January 1, 2018 11:29:44 AM(UTC)
petervk

Rank: Advanced Member

Groups: Registered
Joined: 12/28/2017(UTC)
Posts: 41

Thanks: 6 times
Was thanked: 1 time(s) in 1 post(s)
Hi Martin,

Ah, now I understand what you mean. To calculate the transition time based on the speed just prior to the transition starting would be perfectly fine (does not even sound like a compromise). To avoid the speed to suddenly change it would help if you could just disable the speed change function when used in the middle of an event transition.

It would be much appreciated if you could add this change request to your backlog.

Thanks,
Peter.
Back to top
Users browsing this topic
Guest (2)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.096 seconds.