Now in Beta: Timeline Performance improvements during Editing

First of all this has improved complex timeline performance by a lot. Especially when resizing/moving clips. Thank you for finally adressing this.

I was still having minor slowdowns yesterday. Is this code still being improved and are you looking for cases where it still falls apart? I'm working with quite large productions and many open projects at the same time, so it may be hard to reproduce in a controlled setting.

While we're at timeline behavior, here's some minor bug that creeped in a while ago:
When you are zoomed in on a timeline and have scrolling disabled the playhead (obviously) runs off screen. Now when you stop playback by clicking somewhere in the currently zoomed-in area of the timeline, following occurs:

What is expected: The playback will stop and the playhead is placed where you clicked in the currently zoomed-in area.

What happens: Playback will stop, but the timeline will jump to the position where the playhead currently is off-screen. Which is really annoying if you work on some smaller section of a huge timeline and want to repeatedly watch/listen to some finer edits.

This used to be different. Behavior changed in some update maybe a year ago? Don't remember which update did it, but it is really, really annoying to me. Thought maybe it could have been "accidentally" fixed by your rework of the timeline code, but it's still here that's why I'm bringing this up.

Thanks for your work.

And here's my request for improved waveforms:

https://m.facebook.com/groups/adobepremierepro/permalink/2809568805771387/?comment_id=2809650429096558

(PS promise I *will* check out the latest beta soon!)

2nd beef is for Audio dissolves to merge sensibly when clips are moved (like Avid).

The way they combine at the moment makes no sense to me. Be better if they just dropped off. 

See this post/video

https://m.facebook.com/groups/adobepremierepro/permalink/4735824296479152/

Biggest thing for me on timeline display is the wasted space on the side of the timeline I am *not* interested in.

80+% of the time I only care about what is coming up - I'd like the option to move the playhead left and have the timeline show the post playhead part of the timeline (eg so I can add fades, trim audio, extend captions etc as I playback).

Ideally 3+ playhead positions, with keyboard shortcuts, to set playhead left, right + centred (where the left/right is user customisable).

That's a nice improvement. It does feel much smoother and the blue clip outline does feel nice.

The + thingy that automatically adds audio tracks when your source has more tracks than the timeline is still there, still causing undue extra work. Seems like it would have been the perfect place to address this unnecessary "feature"?

I tested with Sony MTS files (AVCHD H264) files, but with these files I didn't note a better performance.

If I drop a lot of clips in the timeline and then let it play while using Q and W to shorten the clips the PGM window does not follow and it showing a lot of dropped frames...

Hello!

I am glad that this vital area of Premiere's interface is being given some TLC! The FPS bump is definitely needed! 

While we are here tweaking things I think the waveform code in Premiere needs a big overhaul. It seems to be positively ancient, from how peak files are generated, to how they are drawn on the timeline. 

I would love to have:

1. Waveforms that draw as they are dragged across the timeline. It feels very Windows 3.1 to lose the contents of a clip as you are dragging it! This can be very frustrating and you have to resort to keyboard shortcuts to see the waveform move frame by frame when trying to sync up sound FX, etc. This is one of the most ancient feeling things about the premiere timeline interface. 

2. Waveforms that dynamically scale based on levels. Many other NLEs have this but visually being able to shape the waveforms with the pen tool would be great. Just more feedback on what you are doing. 

3. Smooth zooming on timeline, even in this latest beta, waveforms still pop on and off and redraw constantly. 

4. Scrolling The timeline is still quite stuttery for me. I can attach a video if that would help. Still getting waveform re-draw and other visual glitches.