Blackmagic Forum

Hi all,

I have a considerable amount of unedited DV PAL 576i footage from days past. I plan to work on these files but I would like advice on the best options in Resolve Studio 17. I note there is an option to de-interlace in the clip attributes and also there are the field processing options in the master settings page.

I have tried various combinations but am not clear on the best settings.

Would it be better to use 50fps or 25fps?

Do I process fields or not?

Should I de-interlace in the file attributes?

Should I upscale to 1080p?

Any advice gratefully received.

Andrew

If you want to keep them as edited archive for future viewing (not as mastering format) on web, PCs etc. then probably better to deinterlace them (don't tick field processing anywhere then).
If you have modern GPU then use neural option in deinterlacing setting. Never use standard mode as it's crap. Use at least high quality. Make sure DV doesn't leave chroma artefacts as reported here:
viewtopic.php?f=21&t=112817&p=689719#p688625
Files will end up as 50p, which is fine as they will keep original motion.

Upscaling is about pointless for DV sources. Just use square aspect, so 768x576 or 1024x576 (or even 720x540 or 720x404) depending if footage is 4x3 or 16x9. Then export as h264/5 with few eg. 10Mbits average bitrate and archive.

Sounds good. Thanks.

2nd option.
Deinterlace all sources to 50p with QTGMC (avisynth or vapoursynth), edit this in Resolve and export.
This will give some quality gain, but for massive cost of processing time and need of intermediate files.
You can bypass intermediate files creation with avfs (virtual file system for avs/vs), but this requires some knowledge for setup and usage.

3rd option: Video Enhance AI topazlabs.com/video-enhance-ai/
It can de-interlace now too. Currently on discount.

Disclaimer: I was in the beta test group and received another discount {but not for free). No other affiliation.

Tried it.
Deinterlacing itself is good, image is stable and flickering/aliasing free. Some sources get softened/de-noised a lot (others seems to less) and have this artificial/plastic, AI look. On some sources I had strange ghosting/brightness pulsing artefacts.
Speed is crazy low: 0.1fps on Radeon Pro455 for HD (100% GPU usage), which makes it about unusable, unless you have one of the latest GPUs I assume. I've seen on their forum that even latest GTX 3xx won't take you no near realistic processing speeds for HD. It has potential for sure, but a lot of work is needed and speed wise- well, this is a huge problem atm. It's basically a stills' technology.
When you add a price (I think it's way overpriced for what it's) I don't think it's worth it, when Resolve itself + QTGMC + ffmpeg is there.

I love their processing screen saying it may take minute or 2. I assume they mean for a single frame
It also feels like a still bit beta. It seems to be very sensitive to the given source nature/used AI model, so 1 source looks fine, next not so much, which is bit of a problem. Once product is more matured and 10x speed up then it will be nice addition to other methods.

Tried on GTX 1080Ti and 0.5-2fps for HD deinterlacing. "Pulsing" on object's edges all over the place. Basically unusable due to both reasons.