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Aerial stock footage workflow question
The other day we went up and shot some aerial footage of our college campus, the footage out of the camera is pretty good and after some testing with different stabilizers (Avid Resolve adobe) we determined we like the Warp stabilize in adobe the best.
So now to my question. When we shot we did a continuous record (one long clip about a 1hour long), so now I want to cut out all of the good footage to individual clips for use as stock footage. my question is would there be any dis-advantage to cutting the footage and exporting, then later on bringing it back in adding the warp stabilizer and then exporting again. or should I just add the stabilizer at the time of the first cut. will I have any generation loss or quality loss?
the footage was all shot using a Sony f3 connected to a Sound Device recording Avid DnxHD 145 1080 30p we will edit in Progressive and export back to DnxHD 145 1080 30p
Mike Jeffs
Video Coordinator
BYU-Idaho -
2 Replies
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There will be slight generational losses. Depending on the footage it may or may not be noticeable. Here is a great discussion comparing different codecs. In general, when repositioning 4:2:0 footage it is better to export with 4:4:4 subsampling.
However, you don’t need to create intermediate files; just work from the camera footage. Create a dedicated sequence for each clip from the source file. Set the in and out points as desired and apply the Warp Stabilizer. You can now export the clips as stock footage, insert them into other sequences, or import them into other projects.
The same process can be used in After Effects if you plan to color correct or use other AE effects. Stabilize the footage, apply effects, and import the AE project into Premiere Pro using a Dynamic Link.
The advantage of this approach is that you are always working from the source footage without any re-encoding. The disadvantage is that you need access to the source file (or a copy of it).
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With lossless codecs like DNxHD or ProRes you can literally
re-encode to 10 generations before seeing any problems (not that you would), so that should work.But if it were me I would do what Ivan suggested.
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