Smart trimming of Temporally Compressed Codecs

Among the many new features of DR 15 at its current status, one has caught my attention when browsing the "What's New" Resolve 15 User Manual:

Code: Select all

Improved Media Management for
Temporally Compressed Codecs
As of DaVinci Resolve 15, the Media Management window can “copy and trim” clips using
temporally compressed media codecs such as H.264, XAVC, and AVC-Intra, enabling you to
eliminate unused media for these formats during media management without recompressing
or transcoding.

Since I haven't found a complete workflow for doing this, I just followed my intuition: selected an XAVC-I clip, marked the Input and Output points to indicate the portion I'd like to keep, and used the File Copy option from Menu->File->Media Management (adding a number of frames to keep as handles)/ After I clicked START, the dialog window closed but nothing more happened to my file (I was hoping I'd end up with the trimmed version created in the indicated folder without re-compression). What am I missing?

Piotr

Which media management scope option did you use, "Entire Project", "Timelines" or "Clips"?

Entire Project and Clips are very straightforward, but the Timelines scope requires you to select specific timelines unless you already had one selected when starting Media Management. The timelines are listed stealthily under one of the headers. If you don't select one you can still click Start but nothing will happen.



I've tried it with h.264 and h.265 with good results.

XAVC-I is by definition an I-frame only codec and not temporally compressed.

But for me the new option doesn't work yet anyway. Wen I have a timeline with temporally compressed codecs (like XAVC-S), I can see the amount of storage that I would save, but after starting the trimming process nothing happens. Seems to be still under construction.

For me (using h.264) it mostly works, but not when using the Clips scope from the Media page. Clips scope from the Edit page works though.

Which media management scope option did you use, "Entire Project", "Timelines" or "Clips"?
I've tried it with h.264 and h.265 with good results.

Of course, I did try the H.264 from my GH5 as well, using "Clip" scope on Media page - with the same results (no results, really)... So I need to create a timeline for this to work? I was hoping for some trimming functionality at the very basic level, so that I only keep the desired portion(s) of my media in the source folders...

Piotr

Looks like it yes. Trim options are only for used media. It would be good if it could use just the media pool clips/subclips with in/out points as well.

No biggie, is it? Drag all your subclips into an intermediate timeline at once and trim.

No biggie, is it? Drag all your subclips into an intermediate timeline at once and trim.

Sure no biggie - just wanted to verify whether it's just me, missing sth obvious

Piotr